Agenda packet — Shasta Lake City Council, June 16, 2026 (part 1 of 2)

CITY COUNCIL MEETING AGENDA June 16, 2026

CITY OF SHASTA LAKE

CITY COUNCIL

MEETING AGENDA
June 16, 2026
6:00 P.M.

Shasta Lake City Council Chambers
4488 Red Bluff Street  Shasta Lake, CA 96019
Mayor: Justin Jones
Vice Mayor: Greg Watkins
Council Members: Toni Coates, Pamelyn Morgan, Dan Ringwelski

OTHER WAYS TO PARTICIPATE IN THE MEETING
• Watch a livestream of the meeting online or view the recording any time after the meeting concludes at the following: cityofshastalake.gov/meetings • Submit public comment electronically before the meeting to:
[email protected]. Public comment by email will be read into the record during consideration of the item the comment addresses. Each public comment will be limited to three minutes of reading. Include the item number you are commenting on in the subject line of the email. Once the vote has taken place on an item, no additional public comments will beaccepted.
• Submit public comment by mail addressed to City Clerk, City of Shasta Lake, PO Box 777, Shasta Lake, CA 96019. Mailed comments must be received one day prior to the meeting to be included.

1.0 CALL TO ORDER – REGULAR MEETING:

1.1 Call to order (please place electronic devices on silent)

1.2 Statement for the record of Council Members present or absent

1.3 Pledge of Allegiance led by Councilwoman Morgan

1.4 Invocation

2.0 AWARDS & RECOGNITIONS:

2.1 None

3.0 PRESENTATIONS:

3.1 None

4.0 COMMISSION, COMMITTEE, AND OUTSIDE AGENCY REPORTS:

4.1 None

5.0 PUBLIC COMMENT:
1 CITY COUNCIL MEETING AGENDA June 16, 2026
This time is set aside for citizens to address the City Council on matters listed on the Consent Agenda as well as other items not included on the Regular Agenda. If your comments concern an item noted on the regular agenda, please address the Council when that item is open for public comment. Each speaker is allocated three (3) minutes to speak. Speakers may not cede their time. Comments should be limited to matters within the jurisdiction of the City. Council discussion or action cannot be taken on items not listed on the agenda other than to receive comments. Speaker forms are available from the City Clerk, 4477 Main Street, Shasta Lake, on the City’s website, or at the back of the meeting hall. If you have documents to present to members of Council, please provide a minimum of seven copies. Pursuant to The Brown Act, the City Council cannot take action on Public Comment Items.

6.0 CONSENT AGENDA:

The items listed under the Consent Agenda are considered routine business and will be voted on together by one motion unless a Council Member requests a specific item to be removed and discussed separately.

6.1 Minutes of the Regular Meeting of June 2, 2026. (pg. 5)

6.2 Minutes of the Special Joint Meeting/Workshop of June 3, 2026. (pg. 8)

6.3 Payrolls: (pg. 9)
Period Ending: 6/06/2026 Paid Date: 6/12/2026 $179,859.61

6.4 Checks, E-payments, and wires: (pg. 10)
5/14/2026 $1,831,455.68
6/05/2026 $176,319.74

6.5 Monthly Report of Investment Transactions: (pg. 19) LAIF:

May $11,748,215.91
Chandler:

May $37,947,486.46

6.6 Possible action to approve a Resolution establishing the Appropriation Limitation for Fiscal Year 2026-27 at $7,777,090. (pg. 23)

6.7 Possible action to approve a Resolution approving and adopting the Fiscal Year 2026-27 Payrate Schedule for regular full-time and regular part-time position titles and classifications. (pg. 31)

6.8 Possible action to adopt a Resolution accepting the Annual Review of the Development Agreement with Somers West, Mountain Gate at Shasta. (pg. 37)

6.9 Possible action to adopt a Resolution accepting the Final Annual Review of the Development Agreement with Mountain Properties, Inc. (pg. 41) 2 CITY COUNCIL MEETING AGENDA June 16, 2026

6.10 Possible action to approve a Resolution authorizing a Grant Agreement Amendment to accept an additional $750,000 in grant funding for the 2018 CDBGDRINFA Program and approving a supplemental appropriation in the amount of $750,000 for FY 2026/27 for the Centimudi Water Tank Project (pg. 45)

7.0 PUBLIC HEARINGS:

7.1 Annual Resolutions for Deer Creek Manor Subdivision Assessment Districts. (pg. 51)
a) Resolution approving the Engineer’s Report for Deer Creek Manor Landscaping and Lighting District and the levy and collection of assessments within such district for fiscal year 2026/2027. b) Resolution approving the Engineer’s Report for Deer Creek Manor Drainage Maintenance District and the levy and collection of assessments within such district for fiscal year 2026/2027.

7.2 Annual Resolutions for Shasta Gateway Industrial Park (SGIP) Assessment Districts. (pg. 103)
a) Resolution approving the Engineer’s Report for the Shasta Gateway Industrial Park Landscape Maintenance District and the levy and collection of assessments within such district for fiscal year 2026/2027.

8.0 REGULAR AGENDA:

8.1 Discussion and possible action to establish an Ad Hoc Entertainment Zone Committee for discussion of a proposed Entertainment Zone Ordinance and boundary map for future City Council consideration. (pg. 131)

8.2 Discussion and possible action to approve a Resolution approving the name “Summits Edge” for the new Disc Golf Course. (pg. 133)

8.3 Discussion and possible action to appoint Councilwoman Toni Coates to serve as the City of Shasta Lake representative for the Commission on Aging. (pg. 145)

9.0 STAFF COMMENTS:

9.1 CalPortland Public Information and Risk Reduction Plan. (pg. 147)

10.0 CITY COUNCIL COMMENTS AND REPORTS:

This is the time set aside for Council Members, who may so desire, to give brief comments or reports concerning City matters. The City Council may not enter into discussion on matters reported. Statements made by individual Council Members should not be interpreted as a statement of the City Council. The City Council only takes action by majority vote. • Brief reports by members of the Council regarding correspondence, events and/or meetings attended, and upcoming meetings/events.
3 CITY COUNCIL MEETING AGENDA June 16, 2026
• Suggestions/motions for future agenda items.
• In compliance with Assembly Bill 1234, Council will report on attendance at conferences/meetings/events where expenses are reimbursed by the City.

ADJOURNMENT:

Meetings are broadcast as scheduled on Charter Channel 181.

Videos of meetings are also available through the City website: www.cityofshastalake.gov In Compliance with the Americans with Disabilities Act, if you need special assistance to participate in this meeting, please call (530) 275-7407. Notification 48 hours prior to the meeting is requested to enable the City to make reasonable arrangements to ensure accessibility to this meeting (28 CFR 35.102-35.104 ADA Title II). 4 CITY OF SHASTA LAKE

CITY COUNCIL MEETING MINUTES

MINUTES OF THE REGULAR MEETING
HELD TUESDAY, JUNE 2, 2026, AT THE
CITY COUNCIL CHAMBERS, 4488 RED BLUFF ST, SHASTA LAKE, CALIFORNIA

1.0 CALL TO ORDER – REGULAR MEETING:

1.1 Mayor Jones convened the regular meeting at 6:00 PM

1.2 Council Members present: Coates, Jones, Morgan, Ringwelski, Watkins

1.3 The Pledge of Allegiance was led by Mayor Jones

1.4 Invocation was led by Mayor Jones

1.5 Mayor Jones announced that due to noticing requirements and additional information needed, Items 7.1 and 7.2 will be continued to a date certain of June 16, 2026 **

2.0 AWARDS & RECOGNITIONS:

2.1 None

3.0 PRESENTATIONS:

3.1 None

4.0 COMMISSION, COMMITTEE, AND OUTSIDE AGENCY REPORTS:

4.1 None

5.0 PUBLIC COMMENT:

Ann Morningstar, Shasta Lake resident
Janice Powell, Shasta Lake resident
Darlene Brown, Shasta Lake resident
Jim Mark, Shasta Lake resident

6.0 CONSENT AGENDA:

6.1 Minutes of the Special Meeting of May 5, 2026.

6.2 Minutes of the Regular Meeting of May 5, 2026.

6.3 Payrolls:

Period Ending: 5/23/2026 Paid Date: 5/29/2026 $178,624.67 Motion/Vote
By motion made/seconded (Watkins/Morgan), and carried unanimously, the Consent Agenda, was approved.
5 7.0 PUBLIC HEARINGS:
** Due to noticing requirements and additional information needed, Items 7.1 and 7.2 will be continued to a date certain of June 16, 2026 **

7.1 Annual Resolutions for Deer Creek Manor Subdivision Assessment Districts. a) Resolution approving the Engineer’s Report for Deer Creek Manor Landscaping and Lighting District and the levy and collection of assessments within such district for fiscal year 2026/2027. b) Resolution approving the Engineer’s Report for Deer Creek Manor Drainage Maintenance District and the levy and collection of assessments within such district for fiscal year 2026/2027.

7.2 Annual Resolutions for Shasta Gateway Industrial Park (SGIP) Assessment Districts.
a) Resolution approving the Engineer’s Report for the Shasts Gateway Industrial Park Landscape Maintenance District and the levy and collection of assessments within such district for fiscal year 2026/2027.

8.0 REGULAR AGENDA:

8.1 Resolution CC 2026-50 adopting the updated Cannabis Retail Application Processing fee pursuant to Section 5.05.210 of the Shasta Lake Municipal Code.

Public Comment
Gary Due, Shasta Lake resident
Motion/Vote:

A motion was made/seconded (Jones/Ringwelski), and carried unanimously, Item

8.1 was approved.

8.2 Action to approve a contribution request for the Freedom 250 Celebration at Shasta Dam.

Public Comment
Darlene Brown, Shasta Lake resident
Alicia Pizano, Shasta Lake Business Owner
Matt Doyle, Community Member
Janice Powell, Shasta Lake resident
Motion/Vote:

The City Council unanimously decided to approve a contribution for the Freedom 250 Celebration at Shasta Dam.

8.3 Resolution CC 2026-51 adopting a two-year budget for fiscal year 2026-2027 and fiscal year 2027-2028.

Public Comment
Janice Powell, Shasta Lake resident 6
Motion/Vote:

A motion was made/seconded (Morgan/Coates), and carried unanimously, Item

8.2 was approved.

9.0 STAFF COMMENTS:

City Manager Jessaca Lugo informed the Council that there will be a drone survey over Summit City on Wednesday. Social Media noticing was made.

The Commercial Center Project is currently out to bid.

There will be an Animal Control adoption event on Saturday.

Friday Night in the Park will kick off this Friday.

The Park Master Plan Update joint meeting will be on Wednesday, June 3rd.

10.0 CITY COUNCIL COMMENTS AND REPORTS:

ADJOURNMENT:

With no further business, Mayor Jones adjourned the meeting at 7:22 PM. ____________________________
CHARITY TATLOW, City Clerk
7 CITY OF SHASTA LAKE

CITY COUNCIL SPECIAL JOINT MEETING

PARK MASTER PLAN UPDATE WORKSHOP MINUTES

MINUTES OF THE SPECIAL JOINT MEETING/WORKSHOP
HELD WEDNESDAY, JUNE 3 , 2026, AT THE
LARRY J. FARR COMMUNITY CENTER, 4499 MAIN ST, SHASTA LAKE, CALIFORNIA

1.0 CALL TO ORDER – SPECIAL JOINT MEETING:

1.1 Mayor Jones convened the special joint meeting at 3:08 PM

1.2 Council Members present: Coates, Jones, Morgan, Ringwelski, Watkins Planning Commissioners present: Bowman, Campos, Fleming, Kirkland, Trotter Parks and Recreation Commissioners present: Smith, Yednak, Zeller

2.0 WORKSHOP – PARK MASTER PLAN UPDATE

2.1 Introductions

2.2 Master Plan Process Overview

2.3 Strengths, Weaknesses, Threats, and Opportunities Exercise

2.4 Group Discussion

2.5 Wrap-up and Next Steps

3.0 PUBLIC COMMENT:

Dale Widner, Pickleball Community Member
Rick Merrick, Pickleball Community Member
Barb Schubert, Pickleball Community Member
Bridget Demattio, Pickleball Community Member
Dina Salinas, Pickleball Community Member
Angie Baker, Shasta Lake Resident
Denise Williams, Pickleball Community Member
Terry Smith, Pickleball Community Member
Jim Mark, Shasta Lake Resident
Mayor Jones opened Q&A for the public to ask questions of the consultants regarding the Park Master Plan Update.

ADJOURNMENT:

With no further business, Mayor Jones adjourned the meeting at 4:34 PM. ____________________________
CHARITY TATLOW, City Clerk
8 6/10/2026 9:41:39 AM Page 6 of 6
Payroll Check Register
City of Shasta Lake Report Summary
Pay Period: 5/24/2026-6/6/2026
Packet: PYPKT00731 - PE 6.06.2026
Payroll Set: City of Shasta Lake - 01
Type
2 Count
0 2,951.68

0.00 Regular Checks
Manual Checks
0 0.00
0 0.00
Amount
79 176,907.93
Total 81 179,859.61
Reversals
Voided Checks
Direct Deposits
9 10
11 12
13 14
15 16
17 18
Report and Recommendations 6.5 Reviewed and Approved

City Manager

AGENDA ITEM
City Council
____________________________________________________________ TO: Mayor and City Council Members
FROM: Jason Peterson, Finance Director

DATE: June 16, 2026
SUBJECT: INFORMATION ITEM – MONTHLY REPORTS OF INVESTMENT FOR THE PERIODS ENDING MAY 31, 2026
FILE NO.:

RECOMMENDATION
Staff recommends that the City Council receive a report of the Cash and Investment Report for the period ending May 2026.

BACKGROUND
Pursuant to the City of Shasta Lake’s Adopted Investment Policy and Government Code Section 53607, the Finance Director will submit a report of investment transactions to the City Council monthly.

Staff requests the City Council or the public to submit questions regarding the reports prior to the City Council Meeting to permit time to research the question.

FISCAL IMPACTS
There will be no fiscal impact as a result of this information item.

ATTACHMENTS
LAIF Statement
Chandler Investment Summary Report
External Link: Monthly Investment Reports (Full Report)

DISTRIBUTION
City Council
City Attorney
19 Local Agency Investment
Fund
P.O. Box 942809
Sacramento, CA 94209-0001
(916) 653-3001
June 01, 2026
LAIF Home
PMIA Average Monthly Yields

CITY OF SHASTA LAKE

FINANCE DIRECTOR
4477 MAIN STREET
SHASTA LAKE, CA 96019
Account Number: 98-45-868
May 2026 Statement
Tran Type Definitions
Effective
Date
Transaction
Date
Tran
Type Confirm
Number
Web
Confirm
Number Authorized Caller Amount
5/15/2026 5/15/2026 RW 1800135 1760827 JASON PETERSON -1,500,000.00 Account Summary
Total Deposit: 0.00 Beginning Balance: 13,248,215.91
Total Withdrawal: -1,500,000.00 Ending Balance: 11,748,215.91 6/1/26, 8:47 AM LAIF Regular Monthly Statement
https://laifms.treasurer.ca.gov/RegularStatement.aspx 1/1 20 MONTHLY ACCOUNT STATEMENT
City of Shasta Lake | Account #10203 | As of May 31, 2026 CHANDLER ASSET MANAGEMENT | chandlerasset.com
Information contained herein is confidential. We urge you to compare this statement to the one you receive from your qualified custodian. Please see Important Disclosures at the end of the statement.

Chandler Team:

For questions about your account, please call (800) 317-4747, or contact [email protected]
Custodian:

PORTFOLIO SUMMARY
Portfolio Characteristics
Sector Allocation
Performance Review
Account Summary
Maturity Distribution
Top Issuers
Credit Quality*
Total Rate of Return** 1M 3M YTD 1YR 2YRS 3YRS 5YRS 10YRS Since Inception (01/01/14)
City of Shasta Lake 0.20% 0.03% 0.88% 3.96% 4.87% 4.61% 2.33% 2.13% 1.98% Benchmark Return 0.12% (0.11%) 0.62% 3.50% 4.56% 4.19% 1.90% 1.83% 1.63% Average Modified Duration 1.79
Average Coupon 4.03%
Average Purchase YTM 4.29%
Average Market YTM 4.07%
Average Credit Quality* AA+
Average Final Maturity 2.15
Average Life 1.95
End Values as of
04/30/2026
End Values as of
05/31/2026
Market Value 37,914,378.74 37,963,360.04
Accrued Interest 291,285.90 317,149.35
Total Market Value 38,205,664.64 38,280,509.39
Income Earned 134,059.40 102,297.56
Cont/WD 0.00 0.00
Par 37,956,048.02 38,070,692.34
Book Value 37,835,442.88 37,947,486.46
Cost Value 37,676,961.58 37,783,997.55
United States 44.20%
Federal Home Loan Mortgage Corp 9.01%
Federal Home Loan Banks 6.08%
Farm Credit System 2.07%
PACCAR Inc 1.68%
Chase Issuance Trust 1.56%
Walmart Inc. 1.32%
International Bank for Recon and Dev 1.31%
**Periods over 1 year are annualized.

Benchmark: ICE BofA 1-3 Year US Treasury & Agency Index *The average credit quality is a weighted average calculation of the highest of S&P, Moody’s and Fitch. 22 Report and Recommendations 6.6 Reviewed and Approved

City Manager

AGENDA ITEM
City Council
TO: Mayor and City Council Members
FROM: Jason Peterson, Finance Director
Margaret Youngs, Senior Accountant
DATE: June 16, 2026
SUBJECT: CITY OF SHASTA LAKE FISCAL YEAR 2026-27

APPROPRIATION LIMIT
FILE NO.: F-200-

RECOMMENDATION
Staff recommends that the City Council approve of the attached Resolution of Shasta Lake’s Fiscal Year 2026-27 Appropriation Limit.

BACKGROUND
In November 1979, the voters of the State of California approved Proposition 4, commonly known as the Gann Initiative. The proposition created Article XIIIB of the State Constitution placing limits on the amount of revenue which can be spent by all entities of government. Under Proposition 4, each city is required to calculate the appropriation limits based on 1978-79 revenues. As a result of the proposition, the League of California Cities issued Uniform Guidelines in 1980 to assist cities in interpreting and implementing Proposition 4. Attached are the resolution and the calculations that were used to arrive at the City of Shasta Lake’s Appropriation Limitation. The City is required to approve and adopt this limit each year. Staff has calculated the Fiscal Year 2026-27 Appropriation Limitation to be $7,777,090.

FISCAL IMPACTS:

There are no fiscal impacts during the appropriation limit period referenced above. 23 ATTACHMENTS
Resolution for establishing the Fiscal Year 2026-27 Appropriation Limit.

Price Factor and Population Information

DISTRIBUTION
City of Shasta Lake City Council
24 RESOLUTION CC 2026-XX

A RESOLUTION OF THE CITY COUNCIL OF THE CITY OF SHASTA LAKE ESTABLISHING THE APPROPRIATION LIMITATION FOR FISCAL YEAR 2026-27 AT $7,777,090
WHEREAS, Article XIIIB of the California Constitution was enacted into law by passage of Proposition 4, commonly called the Gann Initiative; and WHEREAS, the Finance Director has calculated the appropriation limitation in accordance with Uniform Guidelines for Implementation of Article XIIIB of the California Constitution as developed by the League of California Cities; and WHEREAS, a copy of the information and calculation used to develop the appropriation limit and appropriations subject to limitation for Fiscal Year 2026-27 is attached hereto as “Exhibit A”, and made a part of.

NOW, THEREFORE BE IT RESOLVED that the Shasta Lake City Council has established the appropriation limitation for Fiscal Year 2026-27 at Seven Million Seven Hundred Seventy Seven Thousand Ninety Dollars ($7,777,090).

PASSED, APPROVED, AND ADOPTED this 16th day of June, 2026, by the following vote:

AYES:

NOES:

ABSENT:

JUSTIN JONES, Mayor
ATTEST:

CHARITY TATLOW, CMC
City Clerk
25 City of Shasta Lake
Calculation of Appropriation Limitation
FY 2026-27
Appropriation Limit FY 2025-2026 $7,420,887
Change in Population 0.9958
X Change in U. S. Consumer Price Index (CPI) 1.0495
= Change Factor 1.0480
Change Factor 1.0480
X Appropriation Limit FY 2025-2026 7,420,887
= Appropriation Limit FY 2026-2027 $7,777,090
Appropriations Subject to Limit and Amount Under Legal Limit Proceeds of Taxes $3,444,520
Exclusions 0
Appropriations Subject to Limitation 3,444,520
Current Year Limit 7,777,090
Under Limit $4,332,570
26 May 2026
Attachment A
A. Price Factor: Article XIII B specifies that local jurisdictions select their cost of living factor to compute their appropriation limit by a vote of their governing body. The cost of living factor provided here is per capita personal income. If the percentage change in per capita personal income is selected, the percentage change to be used in setting the fiscal year 2026–27 appropriation limit is:

Per Capita Personal Income
Fiscal Year Percentage change
(FY) over prior year
2026-27 4.95
B. Following is an example using sample population change and the change in California per capita personal income as growth factors in computing a 2026–27 appropriation limit.
2026–27:

Per Capita Cost of Living Change = 4.95 percent
Population Change = -0.14 percent
Per Capita Cost of Living converted to a ratio: 4.95 + 100 = 1.0495 100
Population converted to a ratio: -0.14 + 100 = 0.9986
100
Calculation of factor for FY 2026–27: 1.0495 x 0.9986 = 1.0480 27 May 1, 2026
Dear Fiscal Officer:

Price Factor and Population Information
Appropriations Limit
California Revenue and Taxation Code section 2227 requires the Department of Finance to transmit an estimate of the percentage change in population to local governments.

Each local jurisdiction must use their percentage change in population factor for January 1, 2026, in conjunction with a change in the cost of living, or price factor, to calculate their appropriations limit for fiscal year 2026–27. Attachment A provides the change in California’s per capita personal income and an example for utilizing the factors to calculate the 2026–27 appropriations limit. Attachment B provides the city and unincorporated county population percentage change. Attachment C provides the population percentage change for counties and their summed incorporated areas. The population percentage change data excludes federal and state institutionalized populations and military populations.

Population Percent Change for Special Districts
Some special districts must establish an annual appropriations limit. California Revenue and Taxation Code section 2228 provides additional information regarding the appropriations limit. Article XIII B, section 9(C) of the California Constitution exempts certain special districts from the appropriations limit calculation mandate. Special districts required by law to calculate their appropriations limit must present the calculation as part of their annual audit. Any questions special districts have on this requirement should be directed to their county, district legal counsel, or the law itself. No state agency reviews the local appropriations limits.

Population Certification
The population certification program applies only to cities and counties. California Revenue and Taxation Code section 11005.6 mandates Finance to automatically certify any population estimate that exceeds the current certified population with the State Controller’s Office. Finance will certify the higher estimate to the State Controller by June 1, 2026. Please note: The prior year’s city population estimates may be revised.

The per capita personal income change is based on historical data.

If you have any questions regarding this data, please contact the Demographic Research Unit at (916) 323-4086.
/s Erika Li
Attachment
28 About the Data
FISCAL YEAR 2026-27Attachment BAnnual Percent Change in Population Minus Exclusions*January 1, 2025 to January 1, 2026, and Total Population January 1, 2026 City County Percent Change 25-26
Population Minus
Exclusions 1-1-25
Population Minus
Exclusions 1-1-26 Total Population 1-1-26
Anderson Shasta -0.28 11,081 11,050 11,050
Redding Shasta 0.06 94,119 94,173 94,294
Shasta Lake Shasta -0.42 10,238 10,195 10,195
Unincorporated Shasta -0.46 66,651 66,346 66,395
Incorporated Shasta -0.02 115,438 115,418 115,539
County Total Shasta -0.18 182,089 181,764 181,934*Exclusions include residents on federal military installations and group quarters residents in state mental institutions, state and federal correctional institutions and veteran homes. 29 30
Report and Recommendations 6.7 Reviewed and Approved

City Manager

AGENDA ITEM
City Council
TO: Mayor and City Council Members
FROM: Jason Peterson, Finance Director
Margaret Youngs, Senior Accountant
DATE: June 16, 2026
SUBJECT: FY2026-27 PAYRATE SCHEDULE
FILE NO:

RECOMMENDATION:

Staff respectfully submits for approval and adoption the fiscal year 2026-27 Payrate Schedule for all Regular Full-time and Regular Part-time position titles and classifications.

BACKGROUND:

CalPERS requires that agencies have a payrate schedule that has been duly approved and adopted by the employer’s governing body in accordance with requirements of applicable public meetings laws. Therefore, staff is presenting the FY2026-27 payrate schedule for approval and adoption.

Whenever staffing changes occur, the City evaluates the most effective and efficient method of meeting operational needs. This analysis includes determining whether it is in the City's best interest to fill the vacant position or redistribute its responsibilities among existing staff. When duties are reassigned to existing positions on an ongoing basis, the City may adjust compensation as appropriate to reflect the additional responsibilities assumed.

This salary schedule may be revised during Fiscal Year 2026-27 based on the outcome of the City of Redding's upcoming IBEW negotiations, anticipated in November 2026.

Should those negotiations result in changes affecting compensation, staff may return to the City Council with a revised salary schedule for consideration. 31 For transparency purposes, changes from the 2025-26 revised schedule, approved by Council on 04/15/2025, are noted below:

- Included is a 3% wage adjustment for non-represented employees - Teamsters’ adjustments per approved MOU
- Added Assistant Engineer
- Added Shelter Coordinator
- Added Senior Accountant
- Removed Deputy Building Official
- Removed Building Official – Special Projects
FISCAL IMPACTS:

There is no fiscal impact associated with the approval and adoption of the Fiscal Year 2026-27 Pay Rate Schedule for all regular full-time and regular part-time position classifications. Salary appropriations sufficient to support the proposed pay rate schedule were included in the Fiscal Year 2026-27 and 2027-28 Biennial Budget adopted by the City Council on June 2, 2026. Accordingly, all compensation reflected in this pay rate schedule falls within the budgeted appropriations previously approved by the Council.

ATTACHMENTS:
• Resolution adopting the FY2026-27 Payrate Schedule
• Exhibit A – FY2026-27 Payrate Schedule effective 7/1/2026 DISTRIBUTION:

City of Shasta Lake City Council
32 RESOLUTION CC 2026-XX

A RESOLUTION BY THE CITY COUNCIL OF THE CITY OF SHASTA LAKE CITY APPROVING AND ADOPTING THE FISCAL YEAR 2026-27 PAYRATE SCHEDULE

FOR REGULAR FULL-TIME AND REGULAR PART-TIME POSITION TITLES AND CLASSIFICATIONS.

WHEREAS, the City of Shasta Lake has a payrate schedule identifying the base pay rate, and time base (monthly and hourly) for all Regular Full-time and Regular Part-time position titles and classifications in the City, including the effective date and the date of any revisions; and,
WHEREAS, the City of Shasta Lake’s payrate schedule identifies the position title for every employee position; and,
WHEREAS, the City of Shasta Lake’s payrate schedule is immediately accessible and available for public review during normal business hours and on the City’s internet website, and is retained by the City for public inspection for not less than five years; and, NOW, THEREFORE, BE IT RESOLVED that the Shasta Lake City Council hereby approves and adopts the attached Payrate Schedule (Exhibit A) effective July 1, 2026, for Regular Full-Time and Regular Part-Time position titles and classifications.

PASSED, APPROVED, AND ADOPTED this 16th day of June 2026, by the following vote:

AYES:

NOES:

ABSENT:

JUSTIN JONES, Mayor
ATTEST:

CHARITY TATLOW, CMC
City Clerk
33 34
City of Shasta Lake
Payrate ScheduleEffective 7/1/2026Approved 06/16/2026
FY26/27 and FY27/28 Mid-year changes:

Bargaining
Position Titles / Classifications Unit x Hourly Payrate x Monthly Payrate x Hourly Payrate x Monthly Payrate x Effective Date Account Clerk I T 4,833 27.88Account Clerk II T 5,254 30.31Accounting Technician - AP, UTL M 36.21 6,276Accounting Technician - PR/HR M 38.73 6,713Animal Control Officer I T 4,983 28.75Animal Control Officer II T 5,625 32.45Animal Control Officer-Supervisor M 40.35 6,994Shelter Coordinator (new) T 24.98 4,330Assistant Electric Director M 115.24 19,975Associate Civil Engineer M 66.81 11,580Assistant Engineer M 59.42 10,299Building Inspector T 6,999 40.38Building Official M 55.21 9,570City Clerk / Permit Center Manager M 51.23 8,880City Engineer M 86.02 14,910City Manager M 123.07 21,332Code Enforcement Officer T 5,774 33.31Community Economic Development Manager M 53.45 9,265 Development Services Technician I T 27.38 4,746Development Services Technician II T 30.31 5,254Development Services Technician III T 33.26 5,765Electric Leadworker I 89.43 15,501Electric Lineman I 83.19 14,420Electric Operations Manager M 115.24 19,975 Electric Troubleman I 87.07 15,092
Electric Utilities Director M 149.81 25,967
Engineering Technician II T 41.22 7,145Equipment Mechanic T 36.47 6,321Equipment Mechanic Lead Worker T 40.68 7,051Executive Assistant M 35.02 6,070Finance Director M 79.23 13,733 83.19 Effective 01/01/2027 Finance & General Services Manager M 65.67 11,383
Effective 7/1/2026
35 FY26/27 and FY27/28 Mid-year changes:

Bargaining
Position Titles / Classifications Unit x Hourly Payrate x Monthly Payrate x Hourly Payrate x Monthly Payrate x Effective Date Fuel Reduction Coordinator M 48.37 8,384GIS Program Coordinator M 57.70 10,001 Line Staking Technician I 66.55 11,535
Meter Reader T 31.11 5,392
Meter Reader II T 34.56 5,990Operator in Training T 30.67 5,316Planning Manager M 76.47 13,255 Public Works Director / Engineer M 104.39 18,094Public Works Equipment Operator T 39.70 6,881Public Works Lead Worker T 43.59 7,556Public Works Maintenance Worker I T 31.41 5,444Public Works Maintenance Worker II T 36.05 6,249Public Works Parks Maintenance Worker I T 27.49 4,765Public Works Superintendent - Wastewater M 65.80 11,405 Public Works Superintendent - Water M 65.80 11,405
Public Works Supervisor M 56.56 9,804
Senior Accountant (new) M 53.48 9,270 56.15 Effective 08/23/2026 Senior Mechanic T 44.83 7,771Senior Planner M 54.21 9,396 Senior Wastewater Treatment Plant Operator T 49.12 8,514Senior Water Treatment Plant Operator T 49.12 8,514Utility Billing & Customer Service Supervisor M 42.35 7,341 Wastewater Treatment Plant Operator I T 35.69 6,186Wastewater Treatment Plant Operator II T 42.12 7,301Water Treatment Plant Operator I T 35.69 6,186Water Treatment Plant Operator II T 42.12 7,301Bargaining Units:T = TeamstersI = IBEWM = Management / Confidential 36 Report and Recommendations 6.8 Reviewed and Approved

City Manager

AGENDA ITEM
City Council

TO: Mayor and City Council Members
FROM: Jessaca Lugo, City Manager
DATE: June 16, 2026
SUBJECT: MOUNTAIN GATE AT SHASTA DEVELOPMENT AGREEMENT

ANNUAL REVIEW
FILE NO:

RECOMMENDATION
Discussion and possible action to adopt a resolution accepting the final annual review of the Development Agreement (Agreement) between the City of Shasta Lake and Somers West (Developer), relative to the development known as Mountain Gate at Shasta, and finding that the Developer complied in good faith with the terms and conditions of the Agreement during its effective term.

BACKGROUND
On January 5, 2016, the City Council approved a Development Agreement between the City of Shasta Lake and Mountain Gate Meadows, LLC, for the development of approximately 590 acres generally located within the Mountain Gate area of the City.

The Development Agreement was approved by Ordinance No. 16-246 and became effective in 2016. The agreement was established to provide certainty regarding the development standards, infrastructure obligations, public improvements, and phasing requirements associated with the project.

The project consists of a master-planned community that includes residential, commercial, recreational, open space, public facility, and right-of-way land uses. The Development Agreement outlines the responsibilities of both the developer and the City, including provisions for infrastructure improvements, park development, utility facilities, roadway improvements, and payment of applicable development impact fees. 37 Pursuant to Government Code Section 65865.1, the City is required to conduct periodic reviews of development agreements to determine whether the developer has complied in good faith with the terms and conditions of the agreement. The Development Agreement specifically requires an annual review to evaluate compliance with the agreement's obligations and to determine whether the agreement remains in good standing.

This staff report presents the findings of the City's annual review of the Mountain Gate Meadows Development Agreement and provides a recommendation regarding the developer's good-faith compliance with the terms of the agreement.

FISCAL IMPACTS:

None

ATTACHMENTS
Resolution CC 2026-XX
Project Site

DISTRIBUTION
City of Shasta Lake City Council
Somers West Development
38 RESOLUTION CC 2026-XX
______________________________________________________________________

A RESOLUTION OF THE CITY COUNCIL OF THE CITY OF SHASTA LAKE

ACCEPTING THE ANNUAL REVIEW OF THE DEVELOPMENT AGREEMENT

BETWEEN THE CITY OF SHASTA LAKE AND MOUNTAIN PROPERTIES (DEVELOPER), FINDING THE DEVELOPER COMPLIED IN GOOD FAITH WITH THE

TERMS AND CONDITIONS OF THE DEVELOPMENT AGREEMENT DURING ITS

EFFECTIVE TERM
WHEREAS, on January 5, 2016, City Council adopted Ordinance CC16-246 approving a Development Agreement (Agreement) between the City of Shasta Lake and Mountain Properties, Inc. (Developer), now Somers West Development, for that development known as Mountain Properties Subdivision (SD 04-01); and WHEREAS, Government Code Section 65865.1 requires the City to complete periodic reviews to determine good-faith compliance with the terms and conditions of the Agreement; and
WHEREAS, the City Manager has determined the Developer complied in good faith with the terms and conditions of the Development Agreement during the effective term of the Agreement; and
WHEREAS, the Development Agreement is set to expire in January 2041.

NOW, THEREFORE, BE IT RESOLVED that the City Council of the City of Shasta Lake hereby accepts the final annual review of the Development Agreement between the City of Shasta Lake and Somers West for the development known as Mountain Gate at Shasta pursuant to Government Code Section 65865.1, and finds the Developer complied in good faith with the terms and conditions of the Agreement during its effective term.

PASSED, APPROVED, AND ADOPTED this 16th day of June 2026, by the following vote:

AYES:

NOES:

ABSENT:

JUSTIN JONES, Mayor
ATTEST:

CHARITY TATLOW, CMC
City Clerk
39 40
Report and Recommendations 6.9
Reviewed and Approved

_________________________
City Manager

AGENDA ITEM
City Council Meeting ______________________________________________________________________ TO: Mayor and City Council Members
FROM: Jessaca Lugo, City Manager
DATE: June 16, 2026
SUBJECT: MOUNTAIN PROPERTIES DEVELOPMENT AGREEMENT FINAL

ANNUAL REVIEW
FILE NO.: P-110-770-400

RECOMMENDATION
Discussion and possible action to adopt a resolution accepting the final annual review of the Development Agreement (Agreement) between the City of Shasta Lake and Mountain Properties, Inc. (Developer), relative to the development known as Mountain Properties Subdivision (SD 04-01), and finding that the Developer complied in good faith with the terms and conditions of the Agreement during its effective term.

Government Code Section 65865.1 and Section 18 of the Agreement require the City to complete periodic reviews to determine good-faith compliance with the terms and conditions of the Agreement.

BACKGROUND
The project site is identified as Assessor’s Parcel Numbers 006-610-004, -005, and -007, located generally on the west side of Lake Boulevard, north of Yellow Pine Avenue, south of Flanagan Road, and east of the westerly city limit. The exhibits to the Agreement include legal descriptions and a detailed project description.

On September 21, 2006, the Planning Commission adopted Resolution PC 06-12 recommending City Council approval of Vesting Tentative Map SD 04-01, Rezone Z 04- 02, and adoption of a Mitigated Negative Declaration for the Mountain Properties Subdivision. On October 17, 2006, City Council adopted Resolution CC 06-80 approving 41 the Tentative Map. Ordinance CC 06-179 approving the rezone was adopted on November 21, 2006.

On September 21, 2010, City Council adopted Ordinance CC 10-212 approving a Development Agreement between the City and the Developer. The Development Agreement became effective on September 21, 2010, and included a fifteen (15) year term. Accordingly, the Agreement expired on September 21, 2025.

Section 18 of the Agreement required the City to conduct periodic reviews to determine good-faith compliance with the terms and conditions of the Agreement pursuant to Government Code Section 65865.1.

Section 18(e) of the Agreement states:
“It is understood that Developer is not under any obligation to commence construction of the Development within any time period or at all, and that nonconstruction of the Development is not a basis for the City to determine that Developer is not in good faith compliance with this Agreement.” The City Manager has determined the Developer complied in good faith with the terms and conditions of the Development Agreement during the effective term of the Agreement. The Agreement did not include a timeline requiring completion of the project or specific milestones that must be met by certain dates. In addition, the Agreement specifically states non-construction of the project is not grounds for a finding of non-compliance.

Although the Development Agreement has expired, the City is currently exploring the design of a future sewer system expansion into the Summit City area. If constructed, this infrastructure improvement could help improve the long-term viability of future development opportunities within the project area.

As a result of the expiration of the Agreement on September 21, 2025, this annual review constitutes the final annual review required under the Agreement.

FISCAL IMPACTS:

None.

ATTACHMENTS:

Resolution
DISTRIBUTION:

City of Shasta Lake City Council
Jaxson Baker, Developer
42 RESOLUTION CC 2026-XX
______________________________________________________________________

A RESOLUTION OF THE CITY COUNCIL OF THE CITY OF SHASTA LAKE

ACCEPTING THE FINAL ANNUAL REVIEW OF THE DEVELOPMENT AGREEMENT BETWEEN THE CITY OF SHASTA LAKE AND MOUNTAIN PROPERTIES, INC. (DEVELOPER), FINDING THE DEVELOPER COMPLIED IN GOOD FAITH WITH THE

TERMS AND CONDITIONS OF THE DEVELOPMENT AGREEMENT DURING ITS

EFFECTIVE TERM, AND ACKNOWLEDGING THE AGREEMENT EXPIRED ON SEPTEMBER 21, 2025
WHEREAS, on September 21, 2010, City Council adopted Ordinance CC 10-212 approving a Development Agreement (Agreement) between the City of Shasta Lake and Mountain Properties, Inc. (Developer), for that development known as Mountain Properties Subdivision (SD 04-01); and
WHEREAS, Government Code Section 65865.1 and Section 18 of the Agreement require the City to complete periodic reviews to determine good-faith compliance with the terms and conditions of the Agreement; and
WHEREAS, the City Manager has determined the Developer complied in good faith with the terms and conditions of the Development Agreement during the effective term of the Agreement; and
WHEREAS, the Agreement did not include a timeline requiring completion of the project or specific milestones that must be met by certain dates; and WHEREAS, Section 18(e) of the Agreement states, “It is understood that Developer is not under any obligation to commence construction of the Development within any time period or at all, and that non-construction of the Development is not a basis for the City to determine that Developer is not in good faith compliance with this Agreement”; and WHEREAS, the Development Agreement expired by its own terms on September 21, 2025, and this review constitutes the final annual review required under the Agreement.

NOW, THEREFORE, BE IT RESOLVED that the City Council of the City of Shasta Lake hereby accepts the final annual review of the Development Agreement between the City of Shasta Lake and Mountain Properties, Inc., for the development known as Mountain Properties Subdivision pursuant to Government Code Section 65865.1 and Section 18 of the Agreement, and finds the Developer complied in good faith with the terms and conditions of the Agreement during its effective term.

BE IT FURTHER RESOLVED that the City Council acknowledges the Development Agreement expired on September 21, 2025, and no further annual reviews are required.

PASSED, APPROVED, AND ADOPTED this 16th day of June 2026, by the following vote:
43 AYES:

NOES:

ABSENT:

JUSTIN JONES, Mayor
ATTEST:

CHARITY TATLOW, CMC
City Clerk
44 Report and Recommendations 6.10 Reviewed and Approved

City Manager

AGENDA ITEM
City Council
TO: Mayor and City Council Members
FROM: Whitney Zeller, Community and Economic Development Manager

DATE: June 16, 2026
SUBJECT: RESOLUTIONS AUTHORIZING EXECUTION OF A GRANT

AGREEMENT AMENDMENT TO ACCEPT AN ADDITIONAL
$750,000 IN GRANT FUNDING FOR THE 2018 CDBG-DRINFA

PROGRAM AND APPROVING A SUPPLEMENTAL
APPROPRIATION IN THE AMOUNT OF $750,000 FOR FY 2026/27

FOR THE CENTIMUDI WATER TANK PROJECT
FILE NO.: Please include file number if one exists

RECOMMENDATION
Staff recommends that the City Council adopt two resolutions related to the City’s 2018 Community Development Block Grant Disaster Recovery Infrastructure Program grant (CDBG-DRINFRA):

1. A resolution authorizing execution of a grant agreement amendment with the California Department of Housing and Community Development (HCD) for the 2018 CDBGDRINFRA Program, increasing the grant award by $750,000 for a total award amount not to exceed $7,076,184.69, and authorizing the City Manager or designee to execute all related documents and future amendments; and

2. A resolution approving a supplemental appropriation for Fiscal Year 2026-27 to increase the project budget by $750,000 to account for the additional grant funds.

BACKGROUND
The City of Shasta Lake previously entered into a Standard Agreement with HCD for the 2018 CDBG-DRINFRA program for the construction of the Centimudi Water Tank project.

The original agreement, Contract No. 18-DRINFRA-18008, was executed on June 19, 2023, with a total project cost and grant award of $6,326,784.69. 45 The CDBG-DRINFRA program provides disaster recovery funding for infrastructurerelated activities consistent with the State of California’s CDBG-DR Action Plan for 2018 disasters and applicable program policies and procedures.

Due to acknowledged increases in project costs, the City and HC are pursuing an amendment to the existing Standard Agreement to increase the grant award and project cost by $750,000. If approved, the amended grant award will total $7,076,184.69.

The proposed resolution authorizes the City Manager, or designee, to execute an amended Standard Agreement with HCD for the increased grant award and any subsequent amendments. Adoption of the resolution is required by HCD in order to process the grant agreement amendment. The HCD resolution confirms the City Council’s approval of the amended award amount and provides the necessary authority for the city to continue administering the project in accordance with CDBG-DRINFRA program requirements.

Because the amendment will increase the City’s grant award by $750,000, a second resolution is also required to approve a supplemental appropriation for Fiscal Year 2026-

27. This budget action will ensure the City’s adopted budget accurately reflects the additional grant revenue and corresponding project expenditures.

The project is funded from the following accounts:

Expense Account: 223-340-6262
Revenue Account: 223-000-4382
Approval of both resolutions will allow the City to accept the additional CDBG-DRINFRA Program funding, amend the necessary budget accounts, and continue moving forward with the project.

FISCAL IMPACTS:

Approval of the resolution will increase the City’s CDBG-DR Infrastructure Program grant award by $750,000 from $6,326,184.69 to an amount not to exceed $7,076,184.69.

Approval of the supplemental appropriation resolution will amend the Fiscal Year 2026- 27 budget by increasing the project’s budget by $750,000.

There is no anticipated impact to the General Fund.

ATTACHMENTS
Resolution CC 2026-XX
Resolution CC 2026-XX

DISTRIBUTION
City Council
Finance Director
Director of Public Works
46 RESOLUTION CC 2026-XX

A RESOLUTION OF THE CITY COUNCIL OF THE CITY OF SHASTA LAKE APPROVING A SUPPLEMENTAL APPROPRIATION IN THE AMOUNT OF $750,000 FOR FISCAL YEAR 2026-27 FOR THE 2018 CDBG-DRINFRA PROGRAM WHEREAS, the City of Shasta Lake previously entered into a Standard Agreement with the California Department of Housing and Community Development for the 2018 Community Development Block Grant – Disaster Recovery Infrastructure Program, Contract No. 18-DRINFRA-18008; and
WHEREAS, the original grant award and total project cost under Contract No. 18- DRINFRA-18008 was $6,326,184.69; and
WHEREAS, the City of Shasta Lake and the Department of Housing and Community Development have acknowledged an increase in project costs and are pursuing an amendment to increase the grant award and total project cost by $750,000, for a total amount not to exceed $7,076,184.69; and
WHEREAS, the supplemental appropriation will increase the project budget by $750,000; and
WHEREAS, the project is funded from the following accounts:

Revenue: 223-000-4382
Expense:223-340-6262
NOW, THEREFORE, BE IT RESOLVED that the City of Shasta Lake hereby authorizes a supplemental appropriation to the Fiscal Year 2026-27 budget in the amount of $750,000 for expense account 223-340-6262 and revenue account 223-000-4382 for the 2018 CDBG-DRINFRAR Centimudi Water Tank Project.

PASSED, APPROVED, AND ADOPTED this 16th day of June, 2026, by the following vote:

AYES:

NOES:

ABSENT:

JUSTIN JONES, Mayor
ATTEST:

CHARITY TATLOW, CMC
City Clerk
47 Resolution of the City of Shasta Lake City Council
June 16, 2026
RESOLUTION NO. CC 2026-XX

A RESOLUTION AUTHORIZING AND APPROVING EXECUTION OF A

GRANT AGREEMENT AMENDMENT TO RECEIVE AN ALLOCATION OF
FUNDING FROM THE 2018 CDBG-DR INFRASTRUCTURE PROGRAM AND

ANY FORTHCOMING AMENDMENTS, THERETO
BE IT RESOLVED by the City Council of the City of Shasta Lake as follows:

SECTION 1:

The City Council entered into an agreement with the California Department of Housing and Community Development (“HCD”) on the 19th day of June 2023 for the execution of Contract No. 18-DRINFRA-18008, with a total project cost and grant award of $6,326,184.69. The City of Shasta Lake (“Subrecipient”) and HCD have acknowledged an increase in project costs and are pursuing an amendment to increase the grant award amount and project cost by $750,000 for a total amount of $7,076,184.69. The City Council has reviewed the State of California’s CDBG-DR Action Plan for 2018 disasters and, hereby, approves the execution of an amended Standard Agreement between the Subrecipient and HCD, allocating to the Subrecipient the aggregate amount, not to exceed, $7,076,184.69 (“Grant”).

The City Council agrees to perform infrastructure-development-related activities, as further detailed in the Standard Agreement and consistent with the applicable Disaster Recovery Infrastructure Program (DR-Infrastructure) Policies and Procedures, as the same may be amended from time to time.

SECTION 2:

The City hereby authorizes and directs the City Manager or designee* to enter into, execute, and deliver the amended Standard Agreement and any and all subsequent amendments, thereto, with the State of California for the purposes of the Grant.

SECTION 3:

The City Manager or designee* is authorized to execute and deliver all project applications and any and all related documentation required to effectuate the terms of the 48 Standard Agreement, and to act on the City’s behalf in all matters pertaining to all such applications and documentation, thereof.

SECTION 4:

If an application is approved, the City Manager or designee* is authorized to enter into, execute, and deliver all Notice(s) to Proceed, and any and all subsequent amendments, thereto, with the State of California for the purposes of the Grant.

SECTION 5:

If an application is approved, the City Manager or designee* is authorized to sign and submit Funds Requests and all required reporting forms and other documentation as may be required by the State of California, from time to time, in connection with the Standard Agreement for purposes of the Grant.
* Important Notes:
1) If a designee is named as an alternative signatory on behalf of the designated official of the City or County, the authority to sign on behalf of such designated official must be included with this Resolution. Otherwise, the Resolution will not be accepted and could delay the Grant award and/or funding.
2) Do not add limitations or conditions on the ability of the signatory or signatories to sign documents or the Resolution may not be accepted. Inclusion of additional limitations or conditions on the authority of the signer may result in the Resolution being rejected and will require your entity to issue a corrected Resolution prior to the Department issuing a Standard Agreement.
3) If more than one party’s approval is required, list each required approving party as a signatory. The only exception to this requirement is where county counsel or city attorney approves the Resolution as to form or legality or both, IF such approval is already part of the standard city/county signature block, as evidenced by the signed Resolution itself. 4) The certifying officer cannot be the person identified in the Resolution as the authorized signer.
49 PASSED AND ADOPTED at a regular meeting of the City Council of the City of Shasta Lake held on June 16, 2026, by the following vote:

AYES:

NOES:

ABSENT:

ABSTAIN:
__________________________________
Justin Jones, Mayor
City of Shasta Lake City Council
Attest:
_______________________________
Charity Tatlow, CMC, City Clerk
City of Shasta Lake, State of California

STATE OF CALIFORNIA
City of Shasta Lake
I, Charity Tatlow, City Clerk of the City of Shasta Lake, State of California, hereby certify the above and foregoing to be a full, true and correct copy of a Resolution adopted at a duly noticed and convened meeting of said City Council on June 16, 2026, and that such resolution has not been amended, modified, repealed or rescinded since its date of adoption and is in full force and effect as of the date hereof. __________________________________________
Charity Tatlow, CMC, City Clerk
City of Shasta Lake, State of California

By: _____________________________________
Charity Tatlow, CMC, City Clerk
50 Report and Recommendations 7.1
Reviewed and Approved

_________________________
City Manager

AGENDA ITEM
City Council
______________________________________________________________________ TO: Mayor and City Council Members
FROM: Jason Peterson, Finance Director
Margaret Youngs, Senior Accountant
DATE: June 16, 2026
SUBJECT: DEER CREEK MANOR SUBDIVISION ASSESSMENT

DISTRICTS PUBLIC HEARING
FILE NO.:
______________________________________________________________________

RECOMMENDATION
Staff recommends City Council conduct a public hearing for both the Landscaping and Lighting District (LLD) and Drainage Maintenance District (DMD) for the Deer Creek Manor Subdivision:

For each District separately, consider adopting the attached resolutions:

1. Approve the Final Engineer’s Report and order the Levy and Collection of Assessments.

BACKGROUND
As a condition of approval of the Deer Creek Manor Subdivision, designated open space, neighborhood parks, and retention/detention facilities must be maintained by a homeowner’s association or other funding/maintenance mechanism acceptable to the City. The Developers opted to establish a Landscaping and Lighting District (LLD) and Drainage Maintenance District (DMD) for this purpose. On July 19, 2007, the Council adopted Resolutions legally establishing these districts.

Landscape and Lighting District
The District was formed pursuant to the provisions of the Landscaping and Lighting Act of 1972 (Section 22500 et seq. of the California Streets and Highways Code). The 51 attached Engineer’s Report describes the District, the improvements, and the maximum amount for assessments to be levied against the properties commencing in fiscal year 2026-27, and the proposed applied rate for the fiscal year 2026-27.

The District provides for the continued operation and maintenance of street lighting, medians, parkways, slopes, open spaces and drainage basins. The attached Engineer’s Report provides items that may be included.

The maximum amount of the per-parcel assessment for this District is $599.88. However, the applied rate for fiscal year 2026-27 is $258.18, an increase of $3.18 from the prior year $255.00.

Drainage Maintenance District
This District was formed pursuant to the provisions of the Benefit Assessment Act of 1982 (Section 54703 et seq. of the California Government Code). The attached Engineer’s Report describes the District, the improvements, and the maximum amount for the assessments to be levied against properties commencing in fiscal year 2026-27, and the proposed applied rate for the fiscal year 2026-27.

The District provides for the continued operation and maintenance of drainage and flood control facilities. The attached Engineer’s Report provides items that may be included in this District.

The maximum amount of the per-parcel assessment for this District is $570.44 for the parcels. The applied rate for fiscal year 2026-27 is $35.72, unchanged from the prior year.

Engineer’s Annual Levy Report
The Engineer’s Reports for the LLD and DMD are attached. The reports summarize the improvements, budgets, parcels, amounts to levy, and maximum allowable per parcel amounts of the assessments for fiscal year 2026-27.

FISCAL IMPACTS:

None
ATTACHMENTS:
• Resolution for Deer Creek Manor Landscaping and Lighting District (LLD) Approving the Engineer’s Report and Levy and Collection of Assessments for Fiscal Year 2026-27
• Engineer’s Reports on the Landscaping and Lighting District (LLD) • Landscaping and Lighting District (LLD) Preliminary Assessment Roll • Resolution for Deer Creek Manor Drainage Maintenance District (DMD) Approving the Engineer’s Report Levy and Collection of Assessments for Fiscal Year 2026-27
• Engineer’s Reports on the Drainage Maintenance District (DMD) • Drainage and Maintenance District (DMD) Preliminary Assessment Roll 52 DISTRIBUTION:

City of Shasta Lake City Council
53 RESOLUTION CC 2026-XX

A RESOLUTION OF THE CITY COUNCIL OF THE CITY OF SHASTA LAKE, COUNTY OF SHASTA, STATE OF CALIFORNIA APPROVING THE ENGINEER’S

REPORT FOR DEER CREEK MANOR LANDSCAPING AND LIGHTING DISTRICT

AND THE LEVY AND COLLECTION OF ASSESSMENTS WITHIN SUCH DISTRICT FOR FISCAL YEAR 2026/2027 AND CONFIRMING DIAGRAMS AND ASSESSMENTS PURSUANT TO THE PROVISIONS OF PART 2 OF DIVISION 15 OF THE

CALIFORNIA STREETS AND HIGHWAYS CODE AND AS PROVIDED BY ARTICLE

XIII D OF THE CALIFORNIA CONSTITUTION
WHEREAS, the City Council by its Resolution CC 2026-36 initiated proceedings, and by its Resolution CC 2026-40 declared its intention to levy annual assessments for the Deer Creek Manor Landscaping and Lighting District (hereinafter referred to as the "District") pursuant to the provisions of the Landscaping and Lighting Act of 1972, Part 2 of Division 15 of the California Streets and Highways Code, commencing with Section 22500 (hereinafter referred to as the “Act”), to pay for the costs and expenses of operating, maintaining and servicing ornamental structures, landscaping and appurtenant facilities located within public places within the boundaries of the District; and
WHEREAS, the Engineer selected by the City Council has prepared and filed with the City Clerk, and the City Clerk has presented to the City Council, a report in connection with the annual levy of assessments against lots and parcels of land within the District, and the City Council did by previous resolution approve such report (hereinafter referred to as the “Engineer’s Report”); and WHEREAS, the City Council desires to levy and collect assessments against lots and parcels of land within the District for the fiscal year commencing July 1, 2026 and ending June 30, 2027, to pay for the costs and expenses of operating, maintaining and servicing turf, ground cover, shrubs, trees, irrigation, lighting systems, entry monuments, walls, drainage systems, park facilities, and associated appurtenances, located in public places within the boundaries of the District; and WHEREAS, a mailed ballot election in connection with the levy of assessments within the District was not required in accordance with Article XIII D of the California Constitution.

NOW, THEREFORE, THE CITY COUNCIL OF THE CITY OF SHASTA LAKE DOES HEREBY FIND, DETERMINE, RESOLVE AND ORDER AS FOLLOWS:

Section 1. Following notice duly given, the City Council has held a full and fair public hearing regarding its Resolution CC 2026-XX, the Engineer's Report prepared in connection with the District and the levy and collection of assessments, and considered all oral and written statements, protests and communications made or filed by interested persons.

Section 2. The City Council hereby finds that a majority protest does not exist as defined in Section 4(e) of Article XIII D of the California Constitution with respect to the District. All oral and written protests and objections to the annual levy of assessments for the District and the proposed collection of assessments are hereby overruled by the City Council. 54 Section 3. Based upon its review of the Engineer's Report, a copy of which has been presented to the City Council and which has been filed with the City Clerk, and other reports and information, the City Council hereby finds and determines with respect to the District included in the Engineer’s Report, that:
(i) the land within the District will be specially benefited by the operation, maintenance and servicing of turf, ground cover, shrubs, trees, irrigation, lighting systems, entry monuments, walls, drainage systems, park facilities, and associated appurtenances, located in public places within the boundaries of the District; and (ii) the District include all lands so specially benefited; and (iii) the net amount to be assessed upon the lots and parcels within the District in accordance with the assessment for the fiscal year commencing July 1, 2026 and ending June 30, 2027 is apportioned by a formula and method which fairly distributes the net amount among all assessable lots or parcels in proportion to the estimated special benefits to be received by each lot or parcel from the improvements; and (iv) only special benefits are assessed and no assessment is imposed on any parcel, which exceeds the reasonable cost of the proportional special benefit conferred on that parcel.

Section 4. The City Council hereby orders the proposed improvements to be made as set forth in the Engineer’s Report, which improvements are briefly described as follows: to ensure the ongoing maintenance, operation and servicing of local landscaping and street lighting improvements established or installed in connection with development of properties within the District. The improvements may consist of all or a portion of the public landscaped areas, street lighting and appurtenant facilities within and adjacent to the District. These improvements generally include, but are not limited to the materials, equipment, utilities, labor, contract services and incidental expenses necessary for the ongoing maintenance and operation of the landscaping and lighting improvements, amenities and appurtenant facilities within public properties, right-of-ways or easements including street lighting and various landscaped parkways, medians, slopes, open space areas, detention basins and related amenities including, but not limited to plantings, trees, monuments or other ornamental features, fencing, sidewalks and other facilities or hardscapes constructed and installed as part of the development plans and agreements approved for the development of the lots and parcels within the District.

Section 5. The City Council hereby confirms the diagrams and assessments set forth in the Engineer's Report. The maintenance, operation and servicing of the ornamental structures, landscaping and appurtenant facilities shall be performed pursuant to law. Commencing with Fiscal Year 2026/2027, the County Auditor of Shasta County shall enter on the County Assessment Roll opposite each lot or parcel of land the amount of the assessment, and such assessments shall then be collected at the same time and in the same manner as the County taxes are collected. After collection by the County, the net amount of the assessment after deduction of any compensation due the County for collection shall be paid to the City Treasurer. For Fiscal Year 2026/2027, the City’s representative is hereby authorized and directed to collect such assessments. 55 Section 6. The assessments are in compliance with the provisions of the Act and Article XIII D of the California Constitution, and the City Council has complied with all laws pertaining to the levy of annual assessments pursuant to the Act and Article XIII D of the California Constitution.

Section 7. The assessments are levied for the purpose of paying the costs and expenses of the improvements described in Section 4, above, for Fiscal Year 2026/2027.

Section 8. The City Treasurer shall deposit all money representing assessments collected for the Districts to the credit of a special fund known as "Improvement Fund, City of Shasta Lake Deer Creek Manor Landscaping and Lighting District” and such money shall be expended only for the maintenance, operation and servicing of the ornamental structures, landscaping and appurtenant facilities as described in Section 4 above.

Section 9. The adoption of this resolution constitutes the levy of assessments for the fiscal year commencing July 1, 2026 and ending June 30, 2027.

Section 10. A certified copy of the diagrams and assessments shall be filed in the office of the City Clerk and shall be open for public inspection.
******
PASSED, APPROVED, AND ADOPTED this 16th day of June, 2026.

I, Charity Tatlow, City Clerk of the City of Shasta Lake, County of Shasta, State of California do hereby certify that the foregoing Resolution CC 2026-XX was adopted by the City Council of said City of Shasta Lake at a regular meeting of said council held on the 16th day of June, 2026 by the following vote:

AYES:

NOES:

ABSENT:

ABSTAINED:

JUSTIN JONES, MAYOR

CITY OF SHASTA LAKE

STATE OF CALIFORNIA
ATTEST:

CHARITY TATLOW, CMC, CITY CLERK

CITY OF SHASTA LAKE

STATE OF CALIFORNIA
56 CLERK’S CERTIFICATION TO COUNTY AUDITOR

DEER CREEK MANOR LANDSCAPING AND LIGHTING DISTRICT
FOR FISCAL YEAR 2026/2027
(Pursuant to Landscaping and Lighting Act of 1972)
TO THE COUNTY AUDITOR OF THE COUNTY OF SHASTA:

I, Charity Tatlow, hereby certify that the attached document is a true copy of that certain Engineer’s Report, including assessment and assessment diagram, for Assessment District No. 93- 01, City of Shasta Lake, confirmed by the City Council of the City of Shasta Lake on the 16th day of June, 2026, by its Resolution CC 2026-XX.

This document is certified, and is filed with you, pursuant to Section 22641 of the Streets and Highways Code.

Dated: _______________
______
Charity Tatlow, CMC, City Clerk
City of Shasta Lake
57 RESOLUTION CC 2026-XX

A RESOLUTION OF THE CITY COUNCIL OF THE CITY OF SHASTA LAKE, COUNTY OF SHASTA, STATE OF CALIFORNIA APPROVING THE ENGINEER’S

REPORT FOR DEER CREEK MANOR DRAINAGE MAINTENANCE DISTRICT AND

THE LEVY AND COLLECTION OF ASSESSMENTS WITHIN SUCH DISTRICT FOR FISCAL YEAR 2026/2027 AND CONFIRMING DIAGRAMS AND ASSESSMENTS PURSUANT TO THE BENEFIT ASSESSMENT ACT OF 1982
WHEREAS, the City Council by its Resolution CC 2026-37 initiated proceedings, and by its Resolution CC 2026-41 declared its intention to levy annual assessments for and to amend the boundaries of the Deer Creek Manor Drainage Maintenance District (hereinafter referred to as the "District"), and to levy and collect assessments against lots and parcels of land within such District pursuant to the provisions of the Benefit Assessment Act of 1982, being chapter 6.4, the California Government Code, commencing with Section 54703 (hereinafter referred to as the “1982 Act”), to pay for the maintenance and servicing related thereto, and WHEREAS, the Engineer selected by the City Council has prepared and filed with the City Clerk, and the City Clerk has presented to the City Council, a report in connection with the annual levy of assessments against lots and parcels of land within the District, and the City Council did by previous resolution approve such report (hereinafter referred to as the “Engineer’s Report”); and WHEREAS, the City Council desires to levy and collect assessments against lots and parcels of land within the District for the fiscal year commencing July 1, 2026 and ending June 30, 2027, to pay for the costs and expenses of operating, maintaining and servicing turf, ground cover, shrubs, trees, irrigation, lighting systems, entry monuments, walls, drainage systems, park facilities, and associated appurtenances, located in public places within the boundaries of the District; and WHEREAS, a mailed ballot election in connection with the levy of assessments within the District was not required in accordance with the Act.

NOW, THEREFORE, THE CITY COUNCIL OF THE CITY OF SHASTA LAKE DOES HEREBY FIND, DETERMINE, RESOLVE AND ORDER AS FOLLOWS:

Section 3. Based upon its review of the Engineer's Report, a copy of which has been presented to the City Council and which has been filed with the City Clerk, and other reports and information, the City Council hereby finds and determines with respect to the District included in the Engineer’s Report, that:
58 (i) the land within the District will be specially benefited by the operation, maintenance and servicing of the street and drainage improvements
(ii) the District includes all lands so specially benefited; and (iii) the net amount to be assessed upon the lots and parcels within the District in accordance with the assessment for the fiscal year commencing July 1, 2026 and ending June 30, 2027 is apportioned by a formula and method which fairly distributes the net amount among all assessable lots or parcels in proportion to the estimated special benefits to be received by each lot or parcel from the improvements; and (iv) only special benefits are assessed, and no assessment is imposed on any parcel, which exceeds the reasonable cost of the proportional special benefit conferred on that parcel.

Section 4. The proposed improvements may be briefly described as follows: the operation, maintenance and servicing of the drainage improvements and appurtenant facilities that are necessary and essential requirements for the orderly development of properties within the District to their full potential, consistent with the conditions for development of the properties, and protection of downstream properties which could be negatively affected by increased storm runoff from the development of these properties. These improvements generally include but are not limited to the grading of access perimeter roads; repair of erosion to access roads; debris clearance; dust control through the application of soil stabilization agents; weed abatement; mosquito and vector control; water treatment and monitoring; maintenance, cleaning and minor repairs to storm drain inlets, outlets, pumps, filters, pipes and other drainage related equipment. Detailed maps and descriptions of the location and extent of the specific improvements to be maintained by the District are on file in the Office of Public Works of the City of Shasta Lake and by reference these plans and specifications are made part of this Resolution.

Section 6. The assessments are in compliance with the provisions of the Act, and the City Council has complied with all laws pertaining to the levy of annual assessments pursuant chapter 6.4, the California Government Code.

Section 7. The assessments are levied for the purpose of paying the costs and expenses of the improvements described in Section 4, above, for Fiscal Year 2026/2027.

Section 8. The City Treasurer shall deposit all money representing assessments collected for the Districts to the credit of a special fund known as "Improvement Fund, City of Shasta Lake 59 Deer Creek Manor Drainage Maintenance District” and such money shall be expended only for the operation, maintenance and servicing of the street and drainage improvements and appurtenant facilities as described in Section 4 above.

Section 9. The adoption of this resolution constitutes the levy of assessments for the fiscal year commencing July 1, 2026 and ending June 30, 2027.

AYES:

NOES:

ABSENT:

ABSTAINED:

JUSTIN JONES, MAYOR

CITY OF SHASTA LAKE

STATE OF CALIFORNIA
ATTEST:

CHARITY TATLOW, CMC, CITY CLERK

CITY OF SHASTA LAKE

STATE OF CALIFORNIA
60 CLERK’S CERTIFICATION TO COUNTY AUDITOR

DEER CREEK MANOR DRAINAGAE MAINTENANCE DISTRICT
FOR FISCAL YEAR 2026/2027
(Pursuant to Benefit Act of 1982)
TO THE COUNTY AUDITOR OF THE COUNTY OF SHASTA:

I, Charity Tatlow, hereby certify that the attached document is a true copy of that certain Engineer’s Report, including assessment and assessment diagram, for Deer Creek Manor Drainage Maintenance District, City of Shasta Lake, confirmed by the City Council of the City of Shasta Lake on the 16th day of June, 2026, by its Resolution CC 2026-XX.

This document is certified, and is filed with you, pursuant to Section 22641 of the Streets and Highways Code.

Dated: _______________
______
Charity Tatlow, CMC, City Clerk
City of Shasta Lake
61 27368 Via Industria
Suite 200
Temecula, Ca 92590
T 951.587.3500 | 800.755.6864
F 951.587.3510
www.willdan.com/financial

City of Shasta Lake

Deer Creek Manor
Landscaping and Lighting District
2026/2027 ENGINEER’S ANNUAL LEVY REPORT
Intent Meeting: May 19, 2026
Public Hearing: June 16, 2026

62 AFFIDAVIT FOR THE ENGINEER’S REPORT

DEER CREEK MANOR LANDSCAPE AND LIGHTING

ASSESSMENT DISTRICT
Establishment of Annual Assessments for the:

City of Shasta Lake
County of Shasta, State of California
This Report describes the District including the improvements, budgets, parcels and assessments to be levied for Fiscal Year 2026/27 as they existed at the time of the passage of the Resolution of Intention. Reference is hereby made to the Shasta County Assessor’s maps for a detailed description of the lines and dimensions of parcels within the District. The undersigned respectfully submits the enclosed Report as directed by the City Council.

Dated this day of , 2026.

Willdan Financial Services
Assessment Engineer
On Behalf of the City of Shasta Lake
By:

Chonney Gano, Project Manager
District Administration Services
By:

Tyrone Peters
PE # C 81888
20th May
63 TABLE OF CONTENTS
INTRODUCTION .................................................................................................. 1 I. PLANS AND SPECIFICATIONS ..................................................................... 4 A. BENEFITING PROPERTIES WITHIN THE DISTRICT .......................... 4 B. IMPROVEMENTS AUTHORIZED BY THE 1972 ACT ........................... 4 C. DESCRIPTION OF IMPROVEMENTS ................................................... 5 General Description of the Improvements ................................................................ 5 Landscape Improvements ........................................................................................... 6 Public Lighting Improvements.................................................................................... 7 II. METHOD OF APPORTIONMENT .................................................................. 8 A. BENEFIT ANALYSIS ............................................................................. 8 B. ASSESSMENT METHODOLOGY .......................................................... 9 Equivalent Benefit Units .............................................................................................. 9 Assessment Calculations.......................................................................................... 10 C. ASSESSMENT RANGE FORMULA ..................................................... 11 III. DISTRICT BUDGET .................................................................................... 12 IV. DISTRICT DIAGRAM .................................................................................. 14 V. ASSESSMENT ROLL ................................................................................. 16 64 FY 2026/2027 Deer Creek Manor Landscape and Lighting District Page 1 of 16

INTRODUCTION
Pursuant to the provisions of the Landscaping and Lighting Act of 1972, being Part 2 of Division 15 of the California Streets and Highways Code (hereafter referred to as the “1972 Act”), and in compliance with the substantive and procedural requirements of the California State Constitution Article XIIID (hereafter referred to as the “California Constitution”), the City Council of the City of Shasta Lake, County of Shasta, State of California (hereafter referred to as “City”), formed and levied special benefit assessments for the district designated as:

City of Shasta Lake
Deer Creek Manor Landscaping and Lighting District
(hereafter referred to as the “District”), which includes all lots and parcels of land within the residential subdivisions known as Deer Creek Manor that have been determined to receive special benefits from the improvements and facilities installed and constructed in conjunction with the development of such residential properties within the City limits of Shasta Lake. This Engineer’s Report (hereafter referred to as the “Report”) has been prepared as required pursuant to Chapter 1 Article 4, commencing with Section 22565 of the 1972 Act.

The City Council formed the District to levy and collect annual assessments on the Shasta County (the “County”) tax rolls to provide ongoing funding for the costs and expenses required to service and maintain the landscaping and lighting improvements and appurtenant facilities that are associated with the orderly development of the properties within the District to their full potential, consistent with the development plans and applicable portions of the City General Plan. The improvements provided by the District and the assessments described herein, are made pursuant to the 1972 Act and the substantive and procedural provisions of the California Constitution.

This Report describes the District, the improvements, and the assessments levied against properties in connection with the special benefits that the properties will receive from the maintenance and servicing of the District improvements and facilities commencing in Fiscal Year 2026/2027. The assessments described herein will provide a funding source (annual assessments) for the continued operation and maintenance of the landscaping and lighting improvements and appurtenant facilities that are directly associated with the development and use of properties within the District including, but not limited to street lighting, medians, parkways, slopes, open spaces and detention basin.

While the cost of constructing these improvements are not part of the assessments, the budget described herein, represent an estimate of the direct expenditures, incidental expenses, and fund balances that will be necessary to ensure proper maintenance, servicing and long term funding needs to support the improvements that provides special benefits to properties within the District. The structure of the District (organization), the improvements, the method of apportionment, and assessments described herein are based on current property development plans for the Deer Creek Manor residential subdivision and specifications associated with that planned development; and by reference these plans and specifications are made part of this Report. 65 FY 2026/2027 Deer Creek Manor Landscape and Lighting District Page 2 of 16

The word “parcel”, for the purposes of this Report, refers to an individual property assigned its own Assessor’s Parcel Number (APN) by the County Assessor’s Office. The County Auditor-Controller uses Assessor’s Parcel Numbers and specific Fund Numbers to identify properties assessed on the tax roll for the special benefit assessments.

Each subsequent fiscal year, a Report shall be prepared and presented to the City Council describing any changes to the improvements, the services, the annual budget and assessments for that fiscal year, and the City Council shall hold a noticed public hearing regarding these matters prior to approving and ordering the levy of assessments for that fiscal year. If the annual budget for the District requires an assessment that exceeds the maximum assessment described herein (as approved by the property owners at the time of the District formation), the new or increased assessment must be confirmed through another property owner protest ballot proceeding before such an assessment may be imposed.

This Report consists of five (5) parts:

Part I
Plans and Specifications: A general description of the District, the improvements, and authorized services for parcels within the District will be assessed is provided in this section of the Report. The specific landscaping and lighting plans and associated facility specifications prepared in connection with the development of properties within the Deer Creek Manor subdivision (also known as the “Landscape Plans”) are on file in the offices of the City of Shasta Lake, and by reference these plans and specifications are made part of this Report. Based on these improvement plans and approved subdivision plans, it has been determined that the District will establish a single benefit zone encompassing all benefiting properties within the territory identified within the Boundary Map of the Deer Creek Manor Landscaping and Lighting District, attached and incorporated herein under Part IV of this Report. It should be noted that four (4) parcels within the Deer Creek Manor subdivision are not included within the District because they are accessed from Buckingham Drive and have no direct access or special benefit from the landscaping and lighting improvements provided by this District.

Part II
Method of Apportionment: A discussion of benefits the improvements and services provide to properties within the District and the method of calculating each property’s proportional special benefit and annual assessment. This section also identifies and outlines an Assessment Range Formula (Annual Inflation Adjustment) that provides for an annual adjustment to the maximum assessment rate that establishes limits on future assessments, but also provides for reasonable cost adjustments due to inflation without the added expense of additional property owner protest ballot proceedings.

Part III
District Budget: An annual cost to operate, maintain and service the landscaping and lighting improvements and amenities installed and constructed in connection with properties within the District. This budget includes direct maintenance costs and incidental expenses including, but not limited to, administration expenses and the collection of appropriate fund balances to establish the initial Maximum Assessment 66 FY 2026/2027 Deer Creek Manor Landscape and Lighting District Page 3 of 16

Rates approved by the property owners of record. The special benefit assessments are based on an estimate of the overall operation, maintenance and servicing costs minus any costs that are not assessed as special benefit. The assessments for each subsequent year shall be based on the estimated net annual cost for the City to operate, maintain and service the improvements for that fiscal year including the collection of funds in installments for periodic or long-term maintenance activities. The Maximum Assessment Rates (Rates per Equivalent Benefit Unit) identified in the budget of this Report establishes the initial Maximum Assessment Rates for the District in Fiscal Year 2026/2027 and shall be adjusted annually by the Assessment Range Formula described in the method of apportionment.

Part IV
District Diagram: A Diagram showing the exterior boundaries of the District is provided in this section of the Report and includes all parcels that will receive special benefits from the District improvements. Parcel identification, the lines and dimensions of each lot, parcel and subdivision of land within the District, are inclusive of all parcels as shown on the Shasta County Assessor's Parcel Maps as they existed at the time of the passage of the Resolution of Intention, and shall include all subsequent subdivisions, lot line adjustments or parcel changes therein. Said parcels of land are consistent with and identified by the following Shasta County Assessor's Parcel Maps: Book 075, Page 150, Parcel 046; Book 075, Page 570, Parcels 003 through 074; Book 075, Page 610, Parcels 001 through 028; and Book 075, Page 620, Parcels 001 through 028. Reference is hereby made to the Shasta County Assessor’s maps for a detailed description of the lines and dimensions of each lot and parcel of land within the District.

Part V
Assessment Roll: The assessment amount for each parcel is based on the parcel’s proportional special benefit as outlined in the method of apportionment and the initial Maximum Assessment Rates established in this Report. The Assessment Roll also provides the assessment amount for each parcel for the Fiscal Year 2026/2027 based on the method of apportionment and estimated expenses (budget) for Fiscal Year 2026/2027.
67 FY 2026/2027 Deer Creek Manor Landscape and Lighting District Page 4 of 16

I. PLANS AND SPECIFICATIONS
A. BENEFITING PROPERTIES WITHIN THE DISTRICT
The territory within the District totaling approximately thirty-six acres (36 acres), consists of all lots, parcels and subdivisions of land within the Deer Creek Manor subdivision that directly benefit from the improvements and services provided by the District. The district is comprised of 84 single-family residential properties within the Deer Creek Manor subdivision and various other properties that collectively represent the easements and public areas within the District.

The District is situated in the southern portion of the City of Shasta Lake generally located:
 North of Trinity Street;
 South of Pine Grove Avenue; and
 West of Cascade Boulevard and Interstate 5
The parcels within the District at the time this District was formed were identified on the Shasta County Assessor’s Secured Roll (as of July 18, 2007) and the Assessor’s Parcel Maps as follows:

Book 075, Page 150, Parcel 046;
Book 075, Page 560, Parcels 005 through 042; and
Book 075, Page 570, Parcels 001 through 051.

B. IMPROVEMENTS AUTHORIZED BY THE 1972 ACT
As generally defined by the Landscaping and Lighting Act of 1972 and applicable to this District, the improvements and associated assessments may include one or more of the following:
 The installation or planting of landscaping;
 The installation or construction of statuary, fountains, and other ornamental structures and facilities;
 The installation or construction of public lighting facilities including, but not limited to street lights and traffic signals;
 The installation or construction of any facilities which are appurtenant to any of the foregoing or which are necessary or convenient for the maintenance or servicing thereof;
 The installation of park/recreational improvements, including, but not limited to the following:
a. Land preparation, such as grading, leveling, cutting and filling, sod, landscaping, irrigation systems, sidewalks, and drainage. b. Lights, playground equipment, play courts, and public restrooms. c. The acquisition of land for park, recreational, or open-space purposes or any existing improvement otherwise authorized pursuant to this section. 68 FY 2026/2027 Deer Creek Manor Landscape and Lighting District Page 5 of 16

 The maintenance or servicing, of any of the foregoing including the furnishing of services and materials for the ordinary and usual maintenance, operation, and servicing of any improvement including but not limited to:
a. Repair, removal, or replacement of all or any part of any improvements; b. Grading, clearing, removal of debris, the installation or construction of curbs, gutters, walls, sidewalks, or paving, or water, irrigation, drainage, or electrical facilities;
c. Providing for the life, growth, health, and beauty of landscaping, including cultivation, irrigation, trimming, spraying, fertilizing, or treating for disease or injury;
d. The removal of trimmings, rubbish, debris, and other solid waste; e. The cleaning, sandblasting, and painting of walls and other improvements to remove or cover graffiti;
f. Electric current or energy, gas, or other illuminating agent for any public lighting facilities or for the lighting or operation of any other improvements; g. Water for the irrigation of any landscaping, the operation of any fountains, or the maintenance of any other improvements.
 Incidental expenses associated with the improvements including, but not limited to:
a. The cost of preparation of the report, including plans, specifications, estimates, diagram, and assessment;
b. The costs of printing, advertising, and the publishing, posting and mailing of notices;
c. Compensation payable to the County for collection of assessments; d. Compensation of any engineer or attorney employed to render services;  Any other expenses incidental to the construction, installation, or maintenance and servicing of the improvements;
 Costs associated with any elections held for the approval of a new or increased assessment.

C. DESCRIPTION OF IMPROVEMENTS
General Description of the Improvements
The purpose of this District is to ensure the ongoing maintenance, operation and servicing of local landscaping and street lighting improvements established or installed in connection with development of properties within the District. The improvements may consist of all or a portion of the public landscaped areas, street lighting and appurtenant facilities within and adjacent to the District. These improvements generally include, but are not limited to the materials, equipment, utilities, labor, contract services and incidental expenses necessary for the ongoing maintenance and operation of the landscaping and lighting improvements, amenities and appurtenant facilities within public properties, rights-of-way or easements including street lighting and various landscaped parkways, 69 FY 2026/2027 Deer Creek Manor Landscape and Lighting District Page 6 of 16

medians, slopes, open space areas, detention basins and related amenities including, but not limited to plantings, trees, monuments or other ornamental features, fencing, sidewalks and other facilities or landscapes constructed and installed as part of the development plans and agreements approved for the development of the lots and parcels within the District. The improvements maintained and funded entirely or partially through the District assessments are generally described as:
 Streetscape landscaping including street trees located on the perimeter of the development and interior streets that are within the public rights-of-way or easements and dedicated to the City for maintenance;
 Open space areas, slopes and landscaped drainage facilities established and/or constructed as part of developing properties within the District;  Public lighting facilities including internal and perimeter street lighting; safety lighting and/or ornamental lighting within landscaped improvement areas;  All appurtenant facilities, equipment, materials and utilities related to the aforementioned improvements; and
 Specifically not included as District improvements are those improvements located on private property, improvements and facilities that may be provided or maintained by an agency other than the City; improvements and facilities that may be provide by another assessment or tax levied by the City or any improvement provided and maintained by a Homeowner’s Association or similar entity.

Landscape Improvements
The landscape improvements for the District may include, but are not limited to turf, ground cover, shrubs and plants, trees, irrigation and drainage systems, ornamental lighting, masonry walls or other fencing, landscape improvements, monuments or other ornamental features and associated appurtenant facilities located within the landscape easements or public rights-of-way. Specifically, the landscape improvement areas for this District are identified as:
 Landscape frontage on the south side of Pine Grove Avenue along the length of the District;
 Landscape areas of the entryway median and round-about on Jurak Way;  Landscape areas and decorative cobblestone concrete in 8 pop-out planters within the District;
 Isolated open space area adjacent to lots 68, 69, 70, 84 and 85; and  All appurtenant facilities, equipment, materials and utilities related to weed abatement, graffiti abatement, the trimming of trees and shrubs, and the aforementioned improvements.
70 FY 2026/2027 Deer Creek Manor Landscape and Lighting District Page 7 of 16

Public Lighting Improvements
The lighting improvements may include but are not limited to the cost of providing electrical energy and servicing of lighting fixtures, poles, meters, conduits, electrical cable and associated appurtenant facilities associated with:
 Public streetlights located on all public streets within and adjacent to the District including Pine Grove Avenue, Rissa Way, Jurak Way and Smith Avenue. (Estimated to be approximately 11 perimeter street lights and 12 internal street lights); and  Lighting facilities located within the landscaped areas that may include safety/security lights, and ornamental lights installed as part of the District’s landscape improvements and features.

Detailed maps and descriptions of the location and extent of the specific improvements maintained by the District are on file at the City of Shasta Lake and by reference are made part of this Report. These plans and specifications may be amended or modified from time to time to reflect future changes within the District or servicing of the improvements currently planned for this District. Those portions of the improvements that may be funded in whole or in part by other revenue sources as part of the approved development agreements, will not be included as part of the District assessments. The net annual cost to provide and maintain the improvements determined to be of special benefit shall be allocated to each property in proportion to the special benefits received from those various improvements.
71 FY 2026/2027 Deer Creek Manor Landscape and Lighting District Page 8 of 16 II. METHOD OF APPORTIONMENT
The 1972 Act permits the establishment of assessment districts by agencies for the purpose of providing certain public improvements, which include the construction, maintenance, and servicing of public lights, landscaping and appurtenant facilities. The 1972 Act further requires that the cost of these improvements be levied according to benefit rather than assessed value:
“The net amount assessed upon lands within an assessment district may be apportioned by any formula or method which fairly distributes the net amount among all assessable lots or parcels in proportion to the estimated benefits received by each such lot or parcel from the improvements.” The method of apportionment described in this Report for allocation of special benefit assessments utilizes commonly accepted engineering practices and have been established pursuant to the 1972 Act and the provisions of the California Constitution.

The formulas used for calculating assessments reflects the composition of parcels within the District and the improvements and services provided, to fairly apportion the costs based on the special benefits to each parcel.

A. BENEFIT ANALYSIS
Each of the improvements, the associated costs and assessments have been carefully reviewed, identified and allocated based on special benefit pursuant to the provisions of the California Constitution and 1972 Act. The landscaping and lighting improvements associated with this District and for which properties will be assessed have been identified as necessary, required and/or desired for the orderly development of the properties within the District to their full potential, consistent with the development plans and applicable portions of the City General Plan. As such, the ongoing operation, servicing and maintenance of these improvements would be necessary and required of individual property owners for the development of such properties and the ongoing operation, servicing and maintenance of these improvements would be the financial obligation of those properties. Therefore, the improvements and the annual costs of ensuring the maintenance and operation of the improvements are considered a distinct and special benefit to the properties developed within the District.

The construction and installation of these improvements are only necessary for development of the properties within the District. As such, these improvements were not required nor necessarily desired by any properties or developments outside the District boundary and any benefit derived by properties outside the District boundaries is considered incidental. Therefore, it has been determined that the ongoing maintenance, servicing and operation of the District improvements provide no measurable general benefit to properties outside the District or to the public at large, but clearly provide distinct and special benefits to properties within the District.
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B. ASSESSMENT METHODOLOGY
The method of apportionment established for this District and described herein, reflects the proportional special benefit each property receives from the improvements and services based on the actual or land use of that parcel as compared to other properties within the District. The special benefit received by each lot or parcel is equated to the overall land use of parcels within the District based on the parcel’s actual land use or proposed development.

All special benefit costs associated with the improvements shall be fairly distributed among the parcels based upon the benefit received by each parcel. Additionally, in compliance with the California Constitution Article XIIID Section 4, each parcel’s assessment may not exceed the reasonable cost of the proportional special benefit conferred to that parcel. To identify and determine the special benefit received by each parcel and their proportionate share of the improvement costs it is necessary to consider the entire scope of the planned improvements as well as individual property development within the District. Upon review of the improvements it has been determined that each of the properties within the District receives special benefits from all the improvements funded by annual assessments and based on the overall planned development within the District a single zone of benefit is appropriate for the allocation of the assessments and proportional benefit.

The benefit formula used within the District reflects the composition of the parcels and the improvements and services provided, to fairly apportion the costs based on the special benefits to each assessable parcel. It has been previously determined that dedicated public easements, open space areas, public rights-of-ways, public greenbelts and parkways, utility rights-of-way, common areas, sliver parcels and bifurcated lots or any other property that cannot be developed, receive no special benefit from the improvements and are not assessed.

Equivalent Benefit Units
The method of apportionment established for most districts formed under the 1972 Act utilizes a weighted method of apportionment known as an Equivalent Benefit Unit (EBU) methodology (sometimes referred to as Equivalent Dwelling Units) that uses the singlefamily home site as the basic unit of assessment. A single-family home site equals one Equivalent Benefit Unit (EBU) and all other land uses are assigned a weighted EBU based on an assessment formula that equates various property characteristics to that of the single-family home site. This proportional weighting may be based on several factors that may include, but are not limited to: the type and status of development (land use), size of the property, location of the property, development plans or restrictions, vehicular trip generation, street frontage, population densities or other property related factors. For most districts the calculation of each parcel’s proportional special benefit can be reasonably determined by applying one or more of these factors.

only the development of single-family residential properties that will receive proportionately the same benefit from all the planned improvements. Therefore, each assessed parcel’s special benefits from the improvements are considered equal and each residential unit/parcel has been assigned one (1) EBU.

The following provides an overview of various land uses and their proportional special benefit as it applies or may apply to this District:

Single-Family Residential Units — This land use is defined as a fully subdivided residential home site with or without a structure. This land use classification shall be assessed at 1.0 EBU per lot or parcel.

Planned Residential Subdivision — This land use is defined as any property not fully subdivided, but has a specific number of residential lots or units approved for the parcel based on an approved tentative or final tract map or an approved development plan. This land use classification shall be assessed at 1.0 EBU per planned single-family residential unit.

Exempt Parcels — This land use classification identifies parcels that receive little or no benefit from the improvements and are assigned 0.00 EBU. This land use classification may include, but is not limited to lots or parcels identified as:
 Public streets and other roadways (typically not assigned an APN by the County);  Public Easements including greenbelts, parkways, parks, dedicated open space areas or utility rights-of-ways or other public lands that are considered part of the District improvements or have similar characteristics; and
 Properties with restricted development potential such as common areas, sliver parcels and bifurcated lots.

Assessment Calculations
The benefit formula and assessment calculation applied to parcels within the District is based on the parcel’s special benefit received as compared to all other parcels benefiting from the improvements. The net annual cost of the maintenance, servicing and operation of the improvements and facilities is proportionately and equitably spread to all parcels that benefit from the District improvements utilizing the proportional special benefit allocation outlined previously.

The following formulas are used to calculate each parcel’s proportional benefit and assessment.

Balance to Levy = Levy Amount per Benefit Unit
Number of Benefit Units (EBU) (Assessment Rate)
Assessment Rate x Parcel’s Calculated EBU = Parcel’s Assessment Amount 74 FY 2026/2027 Deer Creek Manor Landscape and Lighting District Page 11 of 16

C. ASSESSMENT RANGE FORMULA
All budget items may be impacted by inflation in subsequent years. In an effort to minimize this impact on the District and ensure the long life of the improvements, an assessment range formula for inflation is included as part of the maximum assessment rate presented to the property owners within the District for approval. The formula, as described herein, provides for annual inflationary adjustment to the maximum assessment rate that may be imposed each year without requiring the extensive procedure and cost of balloting for normal operational cost increases. The purpose of establishing an assessment range formula is to provide for reasonable increases and inflationary adjustments to the assessment amounts without requiring costly noticing, mailing, and ballot procedures, which would further increase the assessments. The annual inflationary formula (assessment range formula) described herein is part of the assessment approved by the property owners and should provide for modest increases to the assessment revenues to meet anticipated cost increases in labor and materials that result from normal inflationary factors.

Commencing each fiscal year thereafter, the maximum assessment rate established in the previous fiscal year shall be adjusted by the greater of:
(1) Three percent (3.0%); or
(2) The percentage increase of the Local Consumer Price Index (CPI).

The Consumer Price Index used for the inflationary adjustment shall be for the San Francisco-Oakland-San Jose, since renamed to San Francisco-Oakland-Hayward Area for All Urban Consumers, as established by the U.S. Bureau of Labor Statistics.

Each fiscal year the City shall identify the annual percentage change in the CPI, using the difference over a 12-month period between the current year and of the previous year. This annual percentage change in the CPI is generally reflected by the percentage change for the preceding calendar year (January to December), but a similar time period may be used if more current data is available. This percentage difference shall then establish the range of increase to the maximum assessment rates allowed based on CPI. If the percentage change in the CPI is less than three percent (3%), the maximum assessment rates shall be increased by three percent. Should the Bureau of Labor Statistics revise such index or discontinue the preparation of such index, the City shall use the revised index or comparable system as approved by the City Council for determining fluctuations in the cost of living.

The adjusted maximum assessments are calculated each fiscal year independent of the annual budget and annual assessments. Although the adjusted maximum assessments will increase each year, the budget and annual assessment rates adopted for a fiscal year may not change from the previous fiscal year. If the budget and the corresponding District assessments for that fiscal year do not require an increase or the increase is less than the allowable adjusted maximum assessment rates, then the assessments required to meet the expenditures shall be applied. If the budget and the corresponding assessments for a given fiscal year require an increase greater than the adjusted maximum assessment rates, then the assessments are considered increased assessments and mailed notices and approval of the property owners through a property owner ballot proceeding would be required before the assessment increases may be imposed.
75 FY 2026/2027 Deer Creek Manor Landscape and Lighting District Page 12 of 16

III. DISTRICT BUDGET
The following provides the budget establishing the maximum annual assessment rates for the District for Fiscal Year 2026/2027. The budget includes an estimate of anticipated expenditures and revenues associated with the maintenance and operation of the improvements. The budget and assessment for Fiscal Year 2026/2027 reflect the anticipated costs and expenses to provide the improvements for all twelve (12) months of the fiscal year.

Starting Fiscal Year 2015/2016, the City began maintenance, operation and servicing of the local landscaping and street lighting improvements. The City has decided to Levy the parcels within the District at $258.18 for Fiscal Year 2026/2027. This will be the thirteenth levy since the creation of the District in 2007/2008.

76 FY 2026/2027 Deer Creek Manor Landscape and Lighting District Page 13 of 16

City of Shasta Lake
Fiscal Year 2026/2027 Budget

DEER CREEK MANOR LANDSCAPING AND LIGHTING DISTRICT
ANNUAL MAINTENANCE (DIRECT COSTS) District Totals
Landscape and Lighting Maintenance Expenses
Turf, Landscape and Facility Maintenance $9,007
Median Maintenance 412
Open Space Maintenance 412
Tree Maintenance 515
Landscape Utilities (Water/Electricity) 6,890
Streetlight Maintenance and Energy 901
Miscellaneous Materials and Equipment 391
Total Landscaping and Lighting Maintenance $18,529

REPLACEMENT/REHABILITATION (CIP)
Collection for Future Rehabilitation/Replacements
Turf, Landscape and Facility Rehabilitation/Replacement $500 Median Rehabilitation/Replacement 100
Open Space Rehabilitation/Replacement 100
Tree Rehabilitation/Replacement 1,500
Total Collection for Capital Improvement/Rehabilitation Fund $2,200

ADMINISTRATION
Professional Fees for Admin $500
City Annual Admin 250
County Administration Fee 58
Miscellaneous Administrative Expenses 150
Total Annual Administration Costs $958
Total Costs and Expenses $21,687
Levy Adjustments
Reserve Fund / CIP Collection $0
Rounding 0
BALANCE TO LEVY $21,687

DISTRICT STATISTICS
Total Parcels in District 89
Parcels Levied 84
Total EBU 84.00
Prior Year Levy per EBU $255.00
Proposed Assessment per EBU $258.18
Annual Inflator (greater of CPI or 3%) 3.04%
Maximum Assessment Rate per EBU $599.8840

FUND BALANCE INFORMATION
Beginning Fund Balance (Reserves and CIP) $64,943
Reserve Fund/CIP Collection 0
Estimated Ending Fund Balance (Reserves and CIP) $64,943 Note: Totals may not foot due to rounding.
77 FY 2026/2027 Deer Creek Manor Landscape and Lighting District Page 14 of 16 IV. DISTRICT DIAGRAM
The parcels within this District consist of lots, parcels and subdivisions of land located in the planned residential development known as Deer Creek Manor. The District covers approximately thirty-six acres (36 acres) in the City of Shasta Lake.

V. ASSESSMENT ROLL
Parcel identification for each lot or parcel within the District is based on the Assessment Diagram presented herein and is based on available parcel maps and property data from the Shasta County Assessor’s Office at the time the Engineer’s Report was prepared. A listing of the lots and parcels assessed within this District along with the assessment amounts is provided herein.

Non-assessable lots or parcels may include, but are not limited to, public streets and other roadways (typically not assigned an APN by the County); dedicated public easements, open space areas, rights-of-way, common areas; bifurcated lots, and any other property that cannot be developed or has little or no value. These types of parcels are considered to receive little or no benefit from the improvements and are therefore exempted from assessment.

If any parcel submitted for collection is identified by the County Auditor-Controller to be an invalid parcel number for the fiscal year, a corrected parcel number and/or new parcel numbers will be identified and resubmitted to the County Auditor-Controller. The assessment amount levied and collected for the resubmitted parcel or parcels shall be based on the method of apportionment and assessment rate described in this Report as approved by the City Council. Therefore, if a single parcel is subdivided to multiple parcels, the assessment amount applied to each of the new parcels shall be recalculated and applied according to the approved method of apportionment and assessment rate rather than a proportionate share of the original assessment.

The District is going to assess assessable parcels during the Fiscal Year 2026/2027. The following is a list of parcels, the assessment and the maximum assessment amounts as determined by the assessment rates and method of apportionment described herein. 80 Assessor's Parcel Number Page Land Use Zone Benefit Units Lot Max Tax Charge 075-150-046-000 150 GOV A 0.00 N/A $0.00 $0.00
075-570-003-000 570 SFR A 1.00 24 599.88 258.18
075-570-004-000 570 SFR A 1.00 25 599.88 258.18
075-570-005-000 570 SFR A 1.00 26 599.88 258.18
075-570-006-000 570 SFR A 1.00 27 599.88 258.18
075-570-007-000 570 SFR A 1.00 28 599.88 258.18
075-570-008-000 570 SFR A 1.00 29 599.88 258.18
075-570-009-000 570 SFR A 1.00 30 599.88 258.18
075-570-010-000 570 SFR B 1.00 31 599.88 258.18
075-570-011-000 570 SFV B 1.00 32 599.88 258.18
075-570-012-000 570 SFR B 1.00 33 599.88 258.18
075-570-013-000 570 SFR B 1.00 34 599.88 258.18
075-570-016-000 570 SFR A 1.00 37 599.88 258.18
075-570-019-000 570 SFR A 1.00 40 599.88 258.18
075-570-020-000 570 SFR A 1.00 41 599.88 258.18
075-570-021-000 570 SFR A 1.00 42 599.88 258.18
075-570-022-000 570 SFR A 1.00 43 599.88 258.18
075-570-023-000 570 SFR A 1.00 44 599.88 258.18
075-570-024-000 570 SFR A 1.00 45 599.88 258.18
075-570-025-000 570 SFR A 1.00 46 599.88 258.18
075-570-026-000 570 SFR A 1.00 47 599.88 258.18
075-570-027-000 570 SFR A 1.00 48 599.88 258.18
075-570-028-000 570 SFR A 1.00 49 599.88 258.18
075-570-029-000 570 SFR A 1.00 50 599.88 258.18
075-570-030-000 570 SFR A 1.00 51 599.88 258.18
075-570-031-000 570 SFR A 1.00 52 599.88 258.18
075-570-032-000 570 SFR A 1.00 53 599.88 258.18
075-570-033-000 570 SFR A 1.00 54 599.88 258.18
075-570-034-000 570 SFR A 1.00 55 599.88 258.18
075-570-035-000 570 SFR A 1.00 56 599.88 258.18
075-570-036-000 570 SFR A 1.00 57 599.88 258.18
075-570-037-000 570 SFR A 1.00 58 599.88 258.18
075-570-038-000 570 SFR A 1.00 59 599.88 258.18
075-570-039-000 570 SFR A 1.00 60 599.88 258.18
075-570-040-000 570 SFR A 1.00 61 599.88 258.18
075-570-041-000 570 SFR A 1.00 62 599.88 258.18
075-570-042-000 570 SFR A 1.00 63 599.88 258.18
075-570-047-000 570 GOV A 0.0 Parcel "B" 0.00 0.00
075-570-048-000 570 GOV A 0.0 Parcel "C" 0.00 0.00
075-570-049-000 570 GOV A 0.0 Parcel "D" 0.00 0.00
075-570-050-000 570 GOV A 0.0 N/A 0.00 0.00
075-570-052-000 570 SFR A 1.00 22 599.88 258.18
075-570-054-000 570 SFR A 1.00 23 599.88 258.18
075-570-057-000 570 SFR A 1.00 39 599.88 258.18
075-570-063-000 570 SFR A 1.00 35 599.88 258.18
075-570-064-000 570 SFR A 1.00 38 599.88 258.18
075-570-065-000 570 SFR A 1.00 36 599.88 258.18
075-570-070-000 570 SFR A 1.00 67 599.88 258.18
075-570-072-000 570 SFR A 1.00 64 599.88 258.18
075-570-073-000 570 SFR A 1.00 65 599.88 258.18
075-570-074-000 570 SFR A 1.00 66 599.88 258.18
075-610-001-000 610 SFR A 1.00 88 599.88 258.18
075-610-002-000 610 SFR A 1.00 87 599.88 258.18
075-610-003-000 610 SFR A 1.00 86 599.88 258.18
075-610-004-000 610 SFR A 1.00 76 599.88 258.18
075-610-005-000 610 SFR A 1.00 77 599.88 258.18
075-610-006-000 610 SFR A 1.00 78 599.88 258.18
075-610-007-000 610 SFR A 1.00 79 599.88 258.18
075-610-008-000 610 SFR A 1.00 80 599.88 258.18
075-610-009-000 610 SFR A 1.00 81 599.88 258.18
075-610-010-000 610 SFR A 1.00 82 599.88 258.18
075-610-011-000 610 SFR A 1.00 83 599.88 258.18
075-610-012-000 610 SFR A 1.00 7 599.88 258.18
075-610-013-000 610 SFR A 1.00 8 599.88 258.18
075-610-014-000 610 SFR A 1.00 9 599.88 258.18
075-610-015-000 610 SFR A 1.00 10 599.88 258.18
075-610-016-000 610 SFR A 1.00 11 599.88 258.18
075-610-017-000 610 SFV A 1.00 12 599.88 258.18
City of Shasta Lake
Deer Creek Landscaping and Lighting District
Preliminary Assessment Roll
Fiscal Year 2026/2027
Deer Creek Manor DMD Fiscal Year 2026/2027 Preliminary Assessment Page 1 of 2 81 Assessor's Parcel Number Page Land Use Zone Benefit Units Lot Max Tax Charge City of Shasta Lake
Deer Creek Landscaping and Lighting District
Preliminary Assessment Roll
Fiscal Year 2026/2027
075-610-027-000 610 SFR A 1.00 6 599.88 258.18
075-610-028-000 610 SFR A 1.00 5 599.88 258.18
075-620-001-000 620 SFR A 1.00 85 599.88 258.18
075-620-002-000 620 SFR A 1.00 84 599.88 258.18
075-620-003-000 620 SFR A 1.00 70 599.88 258.18
075-620-004-000 620 SFR A 1.00 69 599.88 258.18
075-620-005-000 620 SFV A 1.00 68 599.88 258.18
075-620-006-000 620 SFR A 1.00 71 599.88 258.18
075-620-007-000 620 SFR A 1.00 72 599.88 258.18
075-620-008-000 620 SFR A 1.00 73 599.88 258.18
075-620-009-000 620 SFR A 1.00 74 599.88 258.18
075-620-010-000 620 SFR A 1.00 75 599.88 258.18
075-620-011-000 620 SFR A 1.00 13 599.88 258.18
075-620-012-000 620 SFR A 1.00 14 599.88 258.18
075-620-013-000 620 SFR A 1.00 15 599.88 258.18
075-620-014-000 620 SFV A 1.00 16 599.88 258.18
075-620-015-000 620 SFR A 1.00 17 599.88 258.18
075-620-016-000 620 SFR A 1.00 18 599.88 258.18
075-620-017-000 620 SFR A 1.00 19 599.88 258.18
075-620-027-000 620 SFR A 1.00 21 599.88 258.18
075-620-028-000 620 SFR A 1.00 20 599.88 258.18
Total: 84.00 $50,390.25 $21,687.00
Parcel Count: 89
Deer Creek Manor DMD Fiscal Year 2026/2027 Preliminary Assessment Page 2 of 2 82 27368 Via Industria
Suite 200
Temecula, CA 92590
T 951.587.3500 | 800.755.6864
F 951.587.3510
www.willdan.com/financial
City of Shasta Lake
Deer Creek Manor
Drainage Maintenance District
2026/2027 ENGINEER’S ANNUAL LEVY REPORT
Intent Meeting: May 19, 2026
Public Hearing: June 16, 2026
83 AFFIDAVIT FOR THE ENGINEER’S REPORT

DEER CREEK MANOR DRAINAGE MAINTENANCE DISTRICT
Establishment of Annual Assessments for the:

City of Shasta Lake
County of Shasta, State of California
This Final Engineer’s Report (the “Report”) and the enclosed District Diagram showing the exterior boundaries of the territory formed as the Deer Creek Manor Drainage Maintenance District (hereinafter referred to as “District”); and each lot, parcel, and subdivision of land within said territory as the same existed at the time of the passage of the Resolution of Intention. Reference is hereby made to the Shasta County Assessor’s maps for a detailed description of the lines and dimensions of each lot, parcel, and subdivision of land within said territory and said District. The enclosed Report that includes a description of the plans and specifications, method of apportionment, budgets and special benefit assessments associated therewith. The undersigned respectfully submits the enclosed Report as directed by the City Council.

Dated this day of , 2026.

Willdan Financial
Assessment Engineer
On Behalf of the City of Shasta Lake
By:

Chonney Gano, Project Manager
District Administration Services
By:

Tyrone Peters
PE # C 81888
20th May
84 TABLE OF CONTENTS
INTRODUCTION ..................................................................................................... 1 I. PLANS AND SPECIFICATIONS ....................................................................... 4 A. BENEFITING PROPERTIES WITHIN THE DISTRICT ............................. 4 B. FUNDING AUTHORIZED BY THE 1982 ACT ........................................... 4 C. DESCRIPTION OF IMPROVEMENTS ...................................................... 5 Drainage Maintenance .................................................................................................... 5 II. METHOD OF APPORTIONMENT ................................................................... 7 A. BENEFIT ANALYSIS ................................................................................ 7 B. ASSESSMENT METHODOLOGY ............................................................ 8 Equivalent Benefit Units ................................................................................................. 8 Assessment Calculations............................................................................................... 9 C. ASSESSMENT RANGE FORMULA ........................................................ 10 III. DISTRICT BUDGET ....................................................................................... 11 IV. DISTRICT DIAGRAM ..................................................................................... 13 V. ASSESSMENT ROLL .................................................................................... 15 85 FY 2026/2027 Deer Creek Manor Drainage Maintenance District Page 1 of 15

INTRODUCTION
Pursuant to the provisions of the Benefit Assessment Act of 1982, being Chapter 6.4 of the California Government Code, commencing with Section 54703 (hereafter referred to as the “1982 Act”), and in compliance with the substantive and procedural requirements of the California State Constitution Article XIIID (hereafter referred to as the “California Constitution”), the City Council of the City of Shasta Lake, County of Shasta, State of California (hereafter referred to as the “City”), formed and levied special benefit assessments for the district designated as:

City of Shasta Lake
Deer Creek Manor Drainage Maintenance District
(hereafter referred to as the “District”), which includes all lots and parcels of land within the residential subdivisions known as Deer Creek Manor that have been determined to receive special benefits from the improvements and facilities installed and constructed in conjunction with the development of such residential properties within the City limits of Shasta Lake. This Engineer’s Report (hereafter referred to as the “Report”) has been prepared as required pursuant to Article 4, Section 54716 of the 1982 Act.

The City Council formed the District to levy and collect annual assessments for Shasta County (the “County”) tax rolls to provide ongoing funding for the costs and expenses required to service and maintain the drainage (storm drain) improvements and related infrastructure that have been constructed in association with the development of properties within the District. The improvements, maintenance and services provided by the District, and the assessments described herein, are made pursuant to the 1982 Act and the substantive and procedural provisions of the California Constitution.

This Report describes the District, the improvements, and the assessments levied against properties in connection with the special benefits that the properties will receive from the maintenance and servicing of the District improvements and facilities commencing in Fiscal Year 2026/2027. The assessments described herein will provide a funding source (annual assessments) for the continued operation, maintenance and servicing of the drainage improvements, and related infrastructure (facilities).

The word “parcel,” for the purposes of this Report, refers to an individual property assigned its own Assessor’s Parcel Number (APN) by the County Assessor’s Office. The County Auditor-Controller uses Assessor’s Parcel Numbers and specific Fund Numbers to identify properties assessed on the tax roll for special benefit assessments.

Each subsequent fiscal year, a Report shall be prepared and presented to the City Council describing any changes to the services, the annual budget and assessments for that fiscal year, and the City Council shall hold a noticed public hearing regarding these matters prior to approving and ordering the levy of assessments. If the annual budget for the District requires an assessment that exceeds the maximum assessment described herein (as approved by the property owners at the time of the District formation), the new or increased assessment must be confirmed through another property owner protest ballot proceeding before such an assessment may be imposed.
86 FY 2026/2027 Deer Creek Manor Drainage Maintenance District Page 2 of 15

This Report consists of five (5) parts:

Part I
Plans and Specifications: A general description of the District, the improvements, and authorized services for parcels within the District that will be assessed is provided in this section of the Report. The specific drainage plans and associated facility specifications prepared in connection with the development of properties within the Deer Creek Manor subdivision (also known as the “Drainage Plans”) are on file in the offices of the City of Shasta Lake, and by reference these plans and specifications are made part of this Report. Based on these improvement and subdivision plans, it has been determined that the District will establish two (2) benefit zones. Four (4) parcels within the Deer Creek Manor subdivision shall not be a part of the District. These four parcels are accessed from Buckingham Drive and it has been determined that the development of these properties do not require the construction of the improvements associated with this District and therefore receive no special benefit from the drainage facilities provided and maintained by the District.

Part II
Method of Apportionment: A discussion of benefits the improvements and services provide to properties within the District and the method of calculating each property’s proportional special benefit and assessment. This section also identifies and outlines an Assessment Range Formula (Annual Inflation Adjustment) that provides for an annual adjustment to the maximum assessment rate that establishes limits on future assessments, but also provides for reasonable cost adjustments due to inflation without the added expense of additional property owner protest ballot proceedings.

Part III
District Budget: The annual costs to operate, maintain and service the drainage improvements installed and constructed to support the development of properties within the District. This budget includes direct maintenance costs and incidental expenses including, but not limited to, administration expenses and the collection of appropriate fund balances to establish the initial Maximum Assessment Rates approved by the property owners of record. The special benefit assessments are based on an estimate of the overall operation, maintenance and servicing costs minus any costs that are not assessed as special benefit. The assessments for each subsequent year shall be based on the estimated net annual cost for the City to operate, maintain and service the improvements for that fiscal year including the collection of funds in installments for periodic or long-term maintenance activities. The Maximum Assessment Rates (Rates per Equivalent Benefit Unit) identified in the budgets of this Report establish the Maximum Assessment Rates for the District in Fiscal Year 2026/2027 and shall be adjusted annually by the Assessment Range Formula described in the method of apportionment.

the Shasta County Assessor's Parcel Maps as they existed at the time this Report was prepared and shall include all subsequent subdivisions, lot line adjustments or parcel changes therein. Said parcels of land are consistent with and identified by the following Shasta County Assessor's Parcel Maps: Book 075, Page 150, Parcel 046; Book 075,

Page 570 ends

Book 075, Page 620, Parcels 001 through 028 and reference is hereby made to the Shasta County Assessor’s maps for a detailed description of the lines and dimensions of each lot and parcel of land within the District.

Part V
Assessment Roll: The assessment amount for each parcel is based on the parcel’s proportional special benefit as outlined in the method of apportionment and the initial Maximum Assessment Rates established in this report. The Assessment Roll also provides the assessment amount for each parcel for the Fiscal Year 2026/2027 based on the method of apportionment and estimated expenses (budget) for Fiscal Year 2026/2027.
88 FY 2026/2027 Deer Creek Manor Drainage Maintenance District Page 4 of 15

I. PLANS AND SPECIFICATIONS
A. BENEFITING PROPERTIES WITHIN THE DISTRICT
The territory within the District, totaling approximately thirty-six acres (36 acres), consists of all lots, parcels and subdivisions of land within the Deer Creek Manor subdivision that directly benefit from the improvements and services provided by the District. The District is comprised of 84 of the 89 single-family residential properties within the Deer Creek Manor subdivision and various other properties that collectively represent the easements and public areas within the District.

Book 075, Page 150, Parcel 046,
Book 075, Page 560, Parcels 005 through 042; and
Book 075, Page 570, Parcels 001 through 051.

B. FUNDING AUTHORIZED BY THE 1982 ACT
As generally defined by the Benefit Assessment Act of 1982 and applicable to this District, the City imposed a special benefit assessment to finance the maintenance and operation costs of the following services:
1) Drainage and Flood Control
In addition to imposing a benefit assessment for the annual maintenance and operation of the District improvements, the City may authorize an assessment or utilize existing assessment revenues to finance the installation, construction or replacement of drainage and flood control facilities. While such activities are permitted under the 1982 Act and may be applicable to this District, the funds necessary to perform such services or activities are generally greater than can be reasonably collected in a single year’s levy of assessments. Therefore, many of the services and activities associated with this District will be collected in installments over several years and held in a reserve fund until such time the services or activities are deemed necessary by the City. However, it should be noted that some of the funds collected in annual installments may not be fully utilized or may be insufficient to cover the full cost of such projects, but should be sufficient to cover the cost of normal repairs that can reasonably be anticipated as a result of typical weather, use, water flow and erosion over a twenty to thirty year period.

While the assessments for the District have been established to fund normal and anticipated maintenance needs for the improvements, major rehabilitation projects or reconstruction of the improvements resulting from unforeseen damages, caused by 89 FY 2026/2027 Deer Creek Manor Drainage Maintenance District Page 5 of 15

natural disasters such as earthquakes or floods, are not included in the assessments.

The extent and cost of such activities are not easily predicted, and it would not be reasonable or appropriate to collect and hold such significant funds in reserves for such projects.

C. DESCRIPTION OF IMPROVEMENTS
The purpose of this District is to fund the activities necessary to operate, maintain and service the drainage improvements constructed in connection with the development of properties within the residential subdivision known as Deer Creek Manor. The maintenance, operation and servicing of these improvements may include, but are not limited to, all materials, equipment, labor, and incidental expenses deemed necessary to keep the drainage improvements in satisfactory condition. The maintenance of the improvements and related activities shall be funded entirely through the District assessments. The District services are generally described as:

Drainage Maintenance
Drainage maintenance may include, but is not limited to: grading of access perimeter roads associated with the drainage facilities; repair of erosion to such roads; debris clearance; dust control through the application of soil stabilization agents; weed abatement; mosquito and vector control; water treatment and monitoring; maintenance, cleaning and minor repairs to storm drain inlets, outlets, pumps, filters, pipes and other drainage related equipment. The annual assessments for this District are intended to support the drainage facilities and the maintenance program that will adequately regulate and control storm water runoff resulting from and associated with the development of properties within the District. This maintenance program may include but is not limited to:
inspection and documentation of the system; cleaning, servicing or repair of the facilities and equipment; and the partial removal, replacement or rehabilitation of equipment and facilities. Generally, the drainage improvements for this District include, but are not limited to:
 Approximately 37,370 square feet of natural vegetation drainage basin area within the District;
 Approximately 5,675 square feet of landscaped drainage basin area within the District;  Approximately 17,215 square feet of landscaped channel ways within the District;  Approximately thirty (30) inlets, outlets and manholes located within the District;  Approximately 2,010 square feet of block retaining walls located within the District;  Approximately 4,592 square feet of storm drain fencing within the District;  Approximately 1,200 square feet of asphalt access/service roads within the District;  Approximately 3,215 linear feet of storm drain pipe ranging from 18 inches to 42 inches in diameter;
 Approximately 835 linear feet of flood control pipes associated with the French drain / Drainage System within the District;
90 FY 2026/2027 Deer Creek Manor Drainage Maintenance District Page 6 of 15

The Public Works Department shall authorize and schedule all operational activities and maintenance of the drainage and storm water pollution treatment infrastructure, facilities and services that may include, but are not limited to:
 Cleaning of storm drain inlets, catch basins, manholes and pipes as needed;  Stencil maintenance and documentation of facilities as required by Federal, State and County regulations;
 Cleaning and landscape maintenance of the drainage basin, bio-filter areas and channel ways as needed;
 Debris removal and pest control in and around the drainage facilities as needed;  Minor repairs and maintenance of the storm drain inlets, catch basins and outlets as needed;
 Street sweeping services necessary to control debris and water flow for the drainage system; and,
 All operational costs related to the National Pollutant Discharge Elimination System (“NPDES”) compliance requirements.

A portion of the services described above might not be performed on an annual basis but rather as periodic maintenance or due to extraordinary events. The funds necessary for these activities shall be collected as part of the annual assessments and accumulated in a special fund of the District (Reserve Fund). The monies accumulated for these activities shall be spent as needed to perform the services deemed necessary by the City. This process of collecting assessment revenues for the Reserve Fund shall continue until such time the District is dissolved, or the City determines that such additional funding procedures require modification.

While all parcels within the District equally benefit from the maintenance and services associated with the drainage improvements as detailed in the preceding sections, the Regional Water Quality Control Board has required the monitoring and treatment of the water run-off emanating from four (4) parcels within the District, identified as lot numbers 31 through 34 of the Deer Creek Manor subdivision, and further identified as the County Assessor Parcel Numbers 075-570-010, 075-570-011, 075-570-012 and 075-570-013 (hereafter referred to as “Lots 31 through 34”). While the need for this water treatment and monitoring system (known as the “Drainage System”) is required to develop these four lots, this water issue directly affects the overall drainage system within the District and is clearly necessary for the overall development of properties within the District.

Without the installation, implementation and ongoing servicing, maintenance and monitoring of this specialized water treatment system, these four residential lots directly affected would not otherwise be developed and the remaining properties would still be required to address the issue and would therefore be negatively impacted.

Pursuant to an agreement between the developer and the City, the developer shall be responsible for all costs and expenses associated with the maintenance and servicing of the Drainage System for the first two fiscal years, commencing with the year in which said improvements are installed and officially accepted by the City, and by reference, said agreement is incorporated herein and made part of this Report. 91 FY 2026/2027 Deer Creek Manor Drainage Maintenance District Page 7 of 15

II. METHOD OF APPORTIONMENT
The 1982 Act permits the establishment of assessment districts by agencies for the purpose of providing for the maintenance, operation and servicing of drainage and flood control improvements and appurtenant facilities. The 1982 Act further requires that the cost of these improvements be levied according to benefit rather than assessed value:
“The amount of the assessment imposed on any parcel of property shall be related to the benefit to the parcel which will be derived from the provision of the service.”
Furthermore:
“The annual aggregate amount of the assessment shall not exceed the estimated annual cost of providing the service, except that the legislative body may, by resolution, determine that the estimated cost of work authorized is greater than can be conveniently raised from a single annual assessment and order that the estimated cost shall be raised by an assessment levied and collected in installments. The revenue derived from the assessment shall not be used to pay the cost of any service other than the service for which the assessment was levied.”
The method of apportionment described in this Report for allocation of special benefit assessments utilizes commonly accepted engineering practices and is in compliance with the provisions of the 1982 Act and the California Constitution. The formulas used for calculating assessments reflects the composition of parcels within the District and the improvements and services provided, to fairly apportion the costs based on the special benefits to each parcel.

A. BENEFIT ANALYSIS
Each of the services, and the associated costs and assessments have been carefully reviewed, identified and allocated based on special benefit pursuant to the provisions of the 1982 Act and the California Constitution. The drainage improvements associated with this District are necessary and essential requirements for the orderly development of properties within the District to their full potential, consistent with the conditions for development of the properties, and protection of downstream properties which could be negatively affected by increased storm runoff from the development of these properties. As such, the ongoing operation, servicing and maintenance of these improvements are considered the direct financial obligation of the property owners within the District. Since the parcels assessed are directly served by the drainage improvements, each parcel has a direct investment in the proper maintenance of the various improvements that is over and above any general benefits that may be conferred by such improvements and services.

The construction and installation of these improvements are only necessary for development of the properties within the District. As such, these improvements were not required nor necessarily desired by any properties or developments outside the District boundary and any benefit derived by properties outside the District boundaries is considered incidental. Therefore, it has been determined that the ongoing maintenance, servicing and operation of the District improvements provide no measurable general benefit to properties 92 FY 2026/2027 Deer Creek Manor Drainage Maintenance District Page 8 of 15

outside the District or to the public at large, but clearly provide distinct and special benefits to properties within the District.

B. ASSESSMENT METHODOLOGY
All costs and expenses associated with the District’s improvements and services shall be fairly distributed among the parcels based upon the special benefit received by each parcel.

With the exception of the Drainage System, all other costs associated with the District improvements shall be fairly distributed among the parcels based upon the special benefit received by each parcel. Additionally, in compliance with the California Constitution Article XIIID Section 4, each parcel’s assessment may not exceed the reasonable cost of the proportional special benefit conferred to that parcel.

The benefit formula used to determine the assessment obligation is therefore based upon both the improvements that benefit the parcels within the District as well as their respective total Zone budget as compared to other parcels that benefit from those services. Zone A includes all the parcels within the District except Lots 31 through 34, and said parcels proportionately share in the overall District improvements, including half of the costs associated with the Drainage System. Zone B includes Lots 31 through 34. These lots proportionately share in the overall District improvements and costs, as well as half of the costs associated with the Drainage System.

Equivalent Benefit Units
In order to assess benefits equitably it is necessary to relate each property’s proportional special benefits to the special benefits of all other properties within the District. The method of apportionment established for this District utilizes a weighted method of apportionment known as an Equivalent Benefit Unit (EBU) methodology (sometimes referred to as Equivalent Dwelling Units) that uses the single-family home site as the basic unit of assessment. A single-family home site equals one Equivalent Benefit Unit (EBU) and all other land uses are assigned a weighted EBU based on an assessment formula that equates various property characteristics to that of the single-family home site. This proportional weighting may be based on several factors that may include, but are not limited to: the type and status of development (land use), size of the property, location of the property, development plans or restrictions, vehicular trip generation, street frontage, population densities or other property related factors. Generally, for most districts the calculation of each parcel’s proportional special benefit can be reasonably determined by applying one or more of these factors.

While the Equivalent Benefit Unit method of apportioning special benefit is commonly used and applied to districts that have or may have a wide range of land use classifications (both residential and non-residential use) or have significant variations in the phasing of improvements and/or property development, this particular District involves only the development of single-family residential properties that will receive proportionately the same benefit from all the planned improvements, Therefore, each assessed parcel’s special benefits from the improvements are considered equal and each residential unit/parcel has been assigned one (1) EBU.
93 FY 2026/2027 Deer Creek Manor Drainage Maintenance District Page 9 of 15

The following provides an overview of various land uses and their proportional special benefit as it applies or may apply to this District:

The following formulas are used to calculate each parcel’s proportional benefit and assessment.

Balance to Levy (For the
Zone) = Levy Amount per Benefit Unit
Number of Benefit Units (Assessment Rate)
(EBU)
Assessment Rate x Parcel’s Calculated EBU = Parcel’s Assessment Amount 94 FY 2026/2027 Deer Creek Manor Drainage Maintenance District Page 10 of 15

Commencing each fiscal year thereafter, the maximum assessment rate established in the previous fiscal year shall be adjusted by the greater of:
(1) Three percent (3.0%); or,
(2) The percentage increase of the Local Consumer Price Index (CPI).

The Consumer Price Index used for the inflationary adjustment shall be for the San Francisco-Oakland-San Jose Area for All Urban Consumers, since renamed to San Francisco-Oakland-Hayward, as established by the U.S. Bureau of Labor Statistics.

The adjusted maximum assessments are calculated each fiscal year independent of the annual budget and annual assessments. Although the adjusted maximum assessments will increase each year, the budget and annual assessment rates adopted for a fiscal year may not change from the previous fiscal year. If the budget and the corresponding District assessments for that fiscal year do not require an increase or the increase is less than the allowable adjusted maximum assessment rates, then the assessments required to meet the expenditures shall be applied. If the budget and the corresponding assessments for a given fiscal year require an increase greater than the adjusted maximum assessment rates, then the assessments are considered increased assessments and mailed notices and approval of the property owners through a property owner ballot proceeding would be required before the assessment increases may be imposed.
95 FY 2026/2027 Deer Creek Manor Drainage Maintenance District Page 11 of 15

III. DISTRICT BUDGET
The following provides the budget establishing the maximum annual assessment rates for the District for Fiscal Year 2026/2027 The budget includes an estimate of anticipated expenditures and revenues associated with the maintenance and operation of the improvements. The budget and assessments for Fiscal Year 2026/2027 reflect the anticipated costs and expenses to provide the improvements for all twelve (12) months of the fiscal year.

The City took over ongoing maintenance, operation and servicing of the local drainage maintenance authorized by the District beginning in Fiscal Year 2015/2016. The City has decided to levy the parcels within the District at a rate of $35.72 per EBU for Fiscal Year 2026/2027. This will be the thirteenth levy since the creation of the District in 2007/2008. 96 FY 2026/2027 Deer Creek Manor Drainage Maintenance District Page 12 of 15

City of Shasta Lake
Fiscal Year 2026/2027 Budget

DEER CREEK MANOR DRAINAGE MAINTENANCE DISTRICT
ANNUAL MAINTENANCE (DIRECT COSTS) District Totals
Drainage Improvements
Annual Inspection & Maintenance: Drainage Basin $250
Annual Inspection & Maintenance: Storm Drain Fencing and/or Access Roads 100 Annual Inspection & Maintenance: Drainage Infrastructure 250 Annual Maintenance Expenses: Drainage $600

REPLACEMENT/REHABILITATION (CIP)
Collection for Future Rehabilitation/Replacements
Periodic Debris Removal, Rehabilitation & Repairs: Drainage Basin $500 Periodic Repairs & Rehabilitation: Storm Drain Fencing and/or Access Roads 600 Periodic Repairs & Rehabilitation: Storm Drain Infrastructure 300 Periodic Maintenance & Projects: Drainage $1,400

ADMINISTRATION
Professional Fees & Services $500
City Annual Administrative and Overhead 250
County Admin Fee 58
Miscellaneous Administration Expenses 192
Total Annual Administrative Costs $1,000
Total Costs and Expenses $3,000

LEVY ADJUSTMENTS
Reserve Fund / CIP Collection $0
Rounding $0
BALANCE TO LEVY $3,000

DISTRICT STATISTICS
Total Parcels in District 89
Parcels Levied 84
Total EBU 84.00
Prior Year Levy per EBU $35.72
Proposed Assessment per EBU $35.72
Annual Inflator (greater of CPI or 3%) 3.04%
Maximum Assessment Rate per EBU $570.4418

FUND BALANCE INFORMATION
Estimated Beginning Reserve Balance $34,811
Reserve Fund / CIP Collection 0
Estimated Ending Fund Balance (Reserves & CIP) $34,811

Note: Totals may not foot due to rounding
97 FY 2026/2027 Deer Creek Manor Drainage Maintenance District Page 13 of 15

IV. DISTRICT DIAGRAM
The parcels within this District consist of lots, parcels and subdivisions of land located in the planned residential development known as Deer Creek Manor. The District covers approximately thirty-six acres (36 acres) in the City of Shasta Lake.

The following District Diagram is based on the Shasta County Assessor’s Maps and the Shasta County Assessor’s information and identifies all the parcels of land within the District, as the same existed at the time this Report was prepared. The combination of this map and the Assessment Roll contained in this Report constitute the District Assessment Diagram. The Maximum Assessment Rate, assessment range formula and the assessment amount for each of the existing parcels within the District as described herein, shall be presented to the property owners of record for approval or protest in accordance with the provisions of the California Constitution.
98 FY 2026/2027 Deer Creek Manor Drainage Maintenance District Page 14 of 15 99 FY 2026/2027 Deer Creek Manor Drainage Maintenance District Page 15 of 15

Non-assessable lots or parcels may include, but are not limited to, public streets and other roadways (typically not assigned an APN by the County), dedicated public easements, open space areas, rights-of-way, common areas, bifurcated lots, and any other property that cannot be developed or has little or no value. These types of parcels are considered to receive little or no benefit from the improvements and are therefore exempted from assessment.

The District will assess parcels during Fiscal Year 2026/2027 at the assessment rate of $35.72 per parcel. The following is a list of the parcels, the charge, and the maximum assessment amounts for each of the parcels within the District as determined by the assessment rates and method of apportionment described herein:
100
Assessor's Parcel Number Page Land Use Zone Benefit Units Lot Max Tax Charge 075-150-046-000 150 GOV A 0.00 N/A $0.00 $0.00
075-570-003-000 570 SFR A 1.00 24 570.44 35.72
075-570-004-000 570 SFR A 1.00 25 570.44 35.72
075-570-005-000 570 SFR A 1.00 26 570.44 35.72
075-570-006-000 570 SFR A 1.00 27 570.44 35.72
075-570-007-000 570 SFR A 1.00 28 570.44 35.72
075-570-008-000 570 SFR A 1.00 29 570.44 35.72
075-570-009-000 570 SFR A 1.00 30 570.44 35.72
075-570-010-000 570 SFR B 1.00 31 570.44 35.72
075-570-011-000 570 SFV B 1.00 32 570.44 35.72
075-570-012-000 570 SFR B 1.00 33 570.44 35.72
075-570-013-000 570 SFR B 1.00 34 570.44 35.72
075-570-016-000 570 SFR A 1.00 37 570.44 35.72
075-570-019-000 570 SFR A 1.00 40 570.44 35.72
075-570-020-000 570 SFR A 1.00 41 570.44 35.72
075-570-021-000 570 SFR A 1.00 42 570.44 35.72
075-570-022-000 570 SFR A 1.00 43 570.44 35.72
075-570-023-000 570 SFR A 1.00 44 570.44 35.72
075-570-024-000 570 SFR A 1.00 45 570.44 35.72
075-570-025-000 570 SFR A 1.00 46 570.44 35.72
075-570-026-000 570 SFR A 1.00 47 570.44 35.72
075-570-027-000 570 SFR A 1.00 48 570.44 35.72
075-570-028-000 570 SFR A 1.00 49 570.44 35.72
075-570-029-000 570 SFR A 1.00 50 570.44 35.72
075-570-030-000 570 SFR A 1.00 51 570.44 35.72
075-570-031-000 570 SFR A 1.00 52 570.44 35.72
075-570-032-000 570 SFR A 1.00 53 570.44 35.72
075-570-033-000 570 SFR A 1.00 54 570.44 35.72
075-570-034-000 570 SFR A 1.00 55 570.44 35.72
075-570-035-000 570 SFR A 1.00 56 570.44 35.72
075-570-036-000 570 SFR A 1.00 57 570.44 35.72
075-570-037-000 570 SFR A 1.00 58 570.44 35.72
075-570-038-000 570 SFR A 1.00 59 570.44 35.72
075-570-039-000 570 SFR A 1.00 60 570.44 35.72
075-570-040-000 570 SFR A 1.00 61 570.44 35.72
075-570-041-000 570 SFR A 1.00 62 570.44 35.72
075-570-042-000 570 SFR A 1.00 63 570.44 35.72
075-570-047-000 570 GOV A 0.0 Parcel "B" 0.00 0.00
075-570-048-000 570 GOV A 0.0 Parcel "C" 0.00 0.00
075-570-049-000 570 GOV A 0.0 Parcel "D" 0.00 0.00
075-570-050-000 570 GOV A 0.0 N/A 0.00 0.00
075-570-052-000 570 SFR A 1.00 22 570.44 35.72
075-570-054-000 570 SFR A 1.00 23 570.44 35.72
075-570-057-000 570 SFR A 1.00 39 570.44 35.72
075-570-063-000 570 SFR A 1.00 35 570.44 35.72
075-570-064-000 570 SFR A 1.00 38 570.44 35.72
075-570-065-000 570 SFR A 1.00 36 570.44 35.72
075-570-070-000 570 SFR A 1.00 67 570.44 35.72
075-570-072-000 570 SFR A 1.00 64 570.44 35.72
075-570-073-000 570 SFR A 1.00 65 570.44 35.72
075-570-074-000 570 SFR A 1.00 66 570.44 35.72
075-610-001-000 610 SFR A 1.00 88 570.44 35.72
075-610-002-000 610 SFR A 1.00 87 570.44 35.72
075-610-003-000 610 SFR A 1.00 86 570.44 35.72
075-610-004-000 610 SFR A 1.00 76 570.44 35.72
075-610-005-000 610 SFR A 1.00 77 570.44 35.72
075-610-006-000 610 SFR A 1.00 78 570.44 35.72
075-610-007-000 610 SFR A 1.00 79 570.44 35.72
075-610-008-000 610 SFR A 1.00 80 570.44 35.72
075-610-009-000 610 SFR A 1.00 81 570.44 35.72
075-610-010-000 610 SFR A 1.00 82 570.44 35.72
075-610-011-000 610 SFR A 1.00 83 570.44 35.72
075-610-012-000 610 SFR A 1.00 7 570.44 35.72
075-610-013-000 610 SFR A 1.00 8 570.44 35.72
075-610-014-000 610 SFR A 1.00 9 570.44 35.72
075-610-015-000 610 SFR A 1.00 10 570.44 35.72
075-610-016-000 610 SFR A 1.00 11 570.44 35.72
075-610-017-000 610 SFV A 1.00 12 570.44 35.72
City of Shasta Lake
Deer Creek Manor Drainage Maintenance District
Preliminary Assessment Roll
Fiscal Year 2026/2027
Deer Creek Manor DMD Fiscal Year 2026/2027 Preliminary Assessment Page 1 of 2 101
Assessor's Parcel Number Page Land Use Zone Benefit Units Lot Max Tax Charge City of Shasta Lake
Deer Creek Manor Drainage Maintenance District
Preliminary Assessment Roll
Fiscal Year 2026/2027
075-610-027-000 610 SFR A 1.00 6 570.44 35.72
075-610-028-000 610 SFR A 1.00 5 570.44 35.72
075-620-001-000 620 SFR A 1.00 85 570.44 35.72
075-620-002-000 620 SFR A 1.00 84 570.44 35.72
075-620-003-000 620 SFR A 1.00 70 570.44 35.72
075-620-004-000 620 SFR A 1.00 69 570.44 35.72
075-620-005-000 620 SFV A 1.00 68 570.44 35.72
075-620-006-000 620 SFR A 1.00 71 570.44 35.72
075-620-007-000 620 SFR A 1.00 72 570.44 35.72
075-620-008-000 620 SFR A 1.00 73 570.44 35.72
075-620-009-000 620 SFR A 1.00 74 570.44 35.72
075-620-010-000 620 SFR A 1.00 75 570.44 35.72
075-620-011-000 620 SFR A 1.00 13 570.44 35.72
075-620-012-000 620 SFR A 1.00 14 570.44 35.72
075-620-013-000 620 SFR A 1.00 15 570.44 35.72
075-620-014-000 620 SFV A 1.00 16 570.44 35.72
075-620-015-000 620 SFR A 1.00 17 570.44 35.72
075-620-016-000 620 SFR A 1.00 18 570.44 35.72
075-620-017-000 620 SFR A 1.00 19 570.44 35.72
075-620-027-000 620 SFR A 1.00 21 570.44 35.72
075-620-028-000 620 SFR A 1.00 20 570.44 35.72
Total: 84.00 $47,917.11 $3,000.48
Parcel Count: 89
Deer Creek Manor DMD Fiscal Year 2026/2027 Preliminary Assessment Page 2 of 2 102
Report and Recommendations 7.2
Reviewed and Approved

_________________________
City Manager

AGENDA ITEM
City Council Meeting ______________________________________________________________________ TO: Mayor and City Council Members
FROM: Jason Peterson, Finance Director
Margaret Youngs, Senior Accountant
DATE: June 16, 2026
SUBJECT: SHASTA GATEWAY INDUSTRIAL PARK LANDSCAPING

MAINTENANCE DISTRICT PUBLIC HEARING (SGIP LMD)
FILE NO.:

RECOMMENDATION
Staff recommends that the City Council conduct a public hearing for the Shasta Gateway Industrial Park Landscaping Maintenance District (SGIP LMD), adopting the attached resolution:

1. Approve the Final Engineer’s Report and order the Levy and Collection of Assessments.

BACKGROUND
Shasta Gateway Industrial Park Landscape Maintenance District (hereafter referred to as the “District”), which includes all lots and parcels of land within the non-residential subdivision known as Shasta Gateway Industrial Park that have been determined to receive special benefits from the landscaping improvements installed in connection with these non-residential lots.

Prior to 2024, the Property Owners of Shasta Gateway Industrial Park paid for landscaping directly to a landscaping company. In 2023, the Property Owners approached the City, requesting the City take over maintenance and collection of landscaping costs, thus forming the district in 2024.
103
The City Council formed the District to levy and collect annual assessments on the Shasta County (the “County”) tax rolls to provide ongoing funding for the costs and expenses required to service and maintain the landscaping improvements and appurtenant facilities that are necessary and essential requirements for the properties within the District.

ENGINEER’S REPORT
The Resolutions approving the Engineer’s reports are clear that the Council is preliminarily approving the Reports. As allowed by state code, the Engineer’s Report may be amended at any time prior to the public hearing.

Landscaping and Lighting District
The District was formed Pursuant to the provisions of the Landscaping and Lighting Act of 1972, being Part 2 of Division 15 of the California Streets and Highways Code. The attached Engineer’s Report describes the District, the improvements, and the maximum amount for assessments to be levied against the properties commencing in the fiscal year 2026-27 and the proposed applied rate for the fiscal year 2026-27.

The District provides for the continued operation and maintenance of the Landscaping improvements that are directly associated with the development of properties within the District and for the special benefit of those properties. The attached Engineer’s Report provides items that may be included.

Equivalent Benefit Units (EBU) application by land for commercial — This land use is defined as property designated for either commercial or industrial use. This type of property receives greater benefit than Single-Family or Multi-Family property due to typically larger lot sizes in relation to residential properties. With typical SFR lot sizes in the City at 0.25 acres, the Commercial land use type is assessed at 4.0 EBU per net acre.

Parcels less than 0.25 net acres will be assigned a minimum of 1.0 EBU and there is no maximum net acreage cap. The District consists of a total of 125.88 EBU’s.

The maximum amount of the per-parcel assessment for this District is $462.24 per EBU.

The applied rate for fiscal year 2026-27 is $386.25 per EBU, an increase from the $380.87 per EBU assessed for the prior fiscal year 2025-26.

Commencing in each fiscal year thereafter, the maximum assessment rate established in the previous year will be adjusted by the greater of:

1. The percentage change in the Consumer Price Index reported by the local Consumer Price Index (CPI) of all Urban Consumers, San Francisco-OaklandSan Jose Area; or Three percent (3%).

FISCAL IMPACTS:

None
104

ATTACHMENTS
• Resolution for the Shasta Gateway Industrial Park Landscaping Maintenance District (LMD). Approving the Engineer’s Report, Levy, and Collection of Assessments for Fiscal Year 2026-27
• Engineer’s Reports on the Landscaping Maintenance District (LMD) with Preliminary Assessment Roll

DISTRIBUTION
City of Shasta Lake City Council
105
RESOLUTION CC 2026-XX

A RESOLUTION OF THE CITY COUNCIL OF THE CITY OF SHASTA LAKE, COUNTY OF SHASTA, STATE OF CALIFORNIA APPROVING THE ENGINEER’S

REPORT FOR SHASTA GATEWAY INDUSTRIAL PARK LANDSCAPE

MAINTENANCE DISTRICT AND THE LEVY AND COLLECTION OF
ASSESSMENTS WITHIN SUCH DISTRICT FOR FISCAL YEAR 2026/2027 AND

CONFIRMING DIAGRAMS AND ASSESSMENTS PURSUANT TO THE PROVISIONS OF PART 2 OF DIVISION 15 OF THE CALIFORNIA STREETS AND HIGHWAYS

CODE AND AS PROVIDED BY ARTICLE XIII D OF THE CALIFORNIA

CONSTITUTION
WHEREAS, the City Council by its Resolution CC 2026-42 initiated proceedings, and by its Resolution CC 2026-44 declared its intention to levy annual assessments for and to amend the boundaries of the Shasta Gateway Industrial Park Landscape Maintenance District (hereinafter referred to as the "District"), and to levy and collect assessments against lots and parcels of land within such District pursuant to the provisions of the Landscaping and Lighting Act of 1972, Part 2 of Division 15 of the California Streets and Highways Code, commencing with Section 22500 (hereinafter referred to as the “Act”), to pay for the costs and expenses of operating, maintaining and servicing ornamental structures, landscaping and appurtenant facilities located within public places within the boundaries of the District; and
WHEREAS, the Engineer selected by the City Council has prepared and filed with the City Clerk, and the City Clerk has presented to the City Council, a report in connection with the annual levy of assessments against lots and parcels of land within the District, and the City Council did by previous resolution approve such report (hereinafter referred to as the “Engineer’s Report”); and WHEREAS, the City Council desires to levy and collect assessments against lots and parcels of land within the District for the fiscal year commencing July 1, 2026 and ending June 30, 2027, to pay for the costs and expenses of operating, maintaining and servicing turf, ground cover, shrubs, trees, irrigation, lighting systems, entry monuments, walls, drainage systems, park facilities, and associated appurtenances, located in public places within the boundaries of the District; and WHEREAS, a mailed ballot election in connection with the levy of assessments within the District was not required in accordance with Article XIII D of the California Constitution.

NOW, THEREFORE, THE CITY COUNCIL OF THE CITY OF SHASTA LAKE DOES HEREBY FIND, DETERMINE, RESOLVE AND ORDER AS FOLLOWS:

Section 2. The City Council hereby finds that a majority protest does not exist as defined in Section 4(e) of Article XIII D of the California Constitution with respect to the District. All oral and written protests and objections to the annual levy of assessments for the District and the proposed collection of assessments are hereby overruled by the City Council. 106
Section 3. Based upon its review of the Engineer's Report, a copy of which has been presented to the City Council and which has been filed with the City Clerk, and other reports and information, the City Council hereby finds and determines with respect to the District included in the Engineer’s Report, that:
(i) the land within the District will be specially benefited by the operation, maintenance and servicing of turf, ground cover, shrubs, trees, irrigation, lighting systems, entry monuments, walls, drainage systems, park facilities, and associated appurtenances, located in public places within the boundaries of the District; and (ii) the District include all lands so specially benefited; and (iii) the net amount to be assessed upon the lots and parcels within the District in accordance with the assessment for the fiscal year commencing July 1, 2026 and ending June 30, 2027 is apportioned by a formula and method which fairly distributes the net amount among all assessable lots or parcels in proportion to the estimated special benefits to be received by each lot or parcel from the improvements; and (iv) only special benefits are assessed and no assessment is imposed on any parcel, which exceeds the reasonable cost of the proportional special benefit conferred on that parcel.

Section 5. The City Council hereby confirms the diagrams and assessments set forth in the Engineer's Report. The maintenance, operation and servicing of the ornamental structures, landscaping and appurtenant facilities shall be performed pursuant to law. Commencing Fiscal Year 2026/2027, the County Auditor of Shasta County shall enter on the County Assessment Roll opposite each lot or parcel of land the amount of the assessment, and such assessments shall then be collected at the same time and in the same manner as the County taxes are collected. After collection by the County, the net amount of the assessment after deduction of any compensation due the County for collection shall be paid to the City Treasurer. For Fiscal Year 2026/2027, the City’s representative is hereby authorized and directed to collect such assessments. 107
Section 6. The assessments are in compliance with the provisions of the Act and Article XIII D of the California Constitution, and the City Council has complied with all laws pertaining to the levy of annual assessments pursuant to the Act and Article XIII D of the California Constitution.

Section 7. The assessments are levied for the purpose of paying the costs and expenses of the improvements described in Section 4, above, for Fiscal Year 2026/2027.

Section 8. The City Treasurer shall deposit all money representing assessments collected for the Districts to the credit of a special fund known as "Improvement Fund, City of Shasta Lake Shasta Gateway Industrial Park Landscape Maintenance District” and such money shall be expended only for the maintenance, operation and servicing of the ornamental structures, landscaping and appurtenant facilities as described in Section 4 above.

Section 9. The adoption of this resolution constitutes the levy of assessments for the fiscal year commencing July 1, 2026 and ending June 30, 2027.

AYES:

NOES:

ABSENT:

ABSTAINED:

JUSTIN JONES, MAYOR

CITY OF SHASTA LAKE

STATE OF CALIFORNIA
ATTEST:

CHARITY TATLOW, CMC, CITY CLERK

CITY OF SHASTA LAKE

STATE OF CALIFORNIA
108
CLERK’S CERTIFICATION TO COUNTY AUDITOR

SHASTA GATEWAY INDUSTRIAL PARK LANDSCAPE MAINTENANCE DISTRICT FOR FISCAL YEAR 2026/2027
(Pursuant to Landscaping and Lighting Act of 1972)
TO THE COUNTY AUDITOR OF THE COUNTY OF SHASTA:

I, Charity Tatlow, hereby certify that the attached document is a true copy of that certain Engineer’s Report, including assessment and assessment diagram, for SGIP LMD, City of Shasta Lake, confirmed by the City Council of the City of Shasta Lake on the 16th day of June, 2026, by its Resolution CC 2026-XX.

This document is certified, and is filed with you, pursuant to Section 22641 of the Streets and Highways Code.

Dated: _______________
______
Charity Tatlow, CMC, City Clerk
City of Shasta Lake
109

27368 Via Industria
Suite 200
Temecula, CA 92590
T 951.587.3500 | 800.755.6864
F 951.587.3510
www.willdan.com/financial

City of Shasta Lake

Shasta Gateway Industrial Park
Landscape Maintenance District
2026/2027 ENGINEER’S ANNUAL LEVY REPORT
Intent Meeting: May 19, 2026
Public Hearing: June 16, 2026

110

ENGINEER'S REPORT AFFIDAVIT
AFFIDAVIT FOR THE ENGINEER’S REPORT
Shasta Gateway Industrial Park Landscape Maintenance
District
Establishment of Annual Assessments for the:

City of Shasta Lake
County of Shasta, State of California

This Report describes the District including the improvements, budgets, parcels, and assessments to be levied for Fiscal Year 2026/2027 as they existed at the time of the passage of the Resolution of Intention. Reference is hereby made to the Shasta County Assessor’s maps for a detailed description of the lines and dimensions of parcels within the District. The undersigned respectfully submits the enclosed Report as directed by the City Council.

Dated this ____________ day of ______________, 2026.

Willdan Financial Services
Assessment Engineer
On Behalf of the City of Shasta Lake

By: ________________________________
Chonney Gano, Project Manager
District Administration Services

By: ________________________________
Tyrone Peter
PE # C 81888
20th May
111

TABLE OF CONTENTS
INTRODUCTION .......................................................................................................... 1 I. PLANS AND SPECIFICATIONS .......................................................................... 4 A. BENEFITING PROPERTIES WITHIN THE DISTRICT ................................... 4 B. IMPROVEMENTS AND SERVICES....................................................................... 4 Landscape Improvements.......................................................................................... 4 II. METHOD OF APPORTIONMENT ........................................................................ 5 A. BENEFIT ANALYSIS ...................................................................................................... 5 Special Benefit................................................................................................................ 5 General Benefit .............................................................................................................. 6 B. ASSESSMENT METHODOLOGY .......................................................................... 7 C. EQUIVALENT BENEFIT UNITS .............................................................................. 7 EBU Application By Land ........................................................................................... 8 D. ASSESSMENT CALCULATIONS........................................................................... 8 E. ASSESSMENT RANGE FORMULA ...................................................................... 9 III. DISTRICT BUDGET ............................................................................................ 10 IV. DISTRICT DIAGRAM ......................................................................................... 12 V. ASSESSMENT ROLL ........................................................................................ 14 APPENDIX A. 1972 ACT IMPROVEMENTS ........................................................ 16 APPENDIX B. NET ACREAGE ............................................................................. 18 112
FY 2026/2027 Shasta Gateway Industrial Park Landscape Maintenance District Page 1

Shasta Gateway Industrial Park Landscape Maintenance District (hereafter referred to as the “District”), which includes all lots and parcels of land within the non-residential subdivision known as Shasta Gateway Industrial Park that have been determined to receive special benefits from the landscaping improvements installed in connection with these non-residential lots. This Engineer’s Report (hereafter referred to as the “Report”) has been prepared as required pursuant to Chapter 1 Article 4, commencing with Section 22565 of the 1972 Act.

Prior to the formation of the District, the Property Owners of Shasta Gateway Industrial Park were paying for landscaping directly to a landscaping company. In 2023, the Property Owners approached the City requesting the City take over maintenance and collection of landscaping costs. Thus, forming the District in 2024.

The City Council formed the District to levy and collect annual assessments on the Shasta County (the “County”) tax rolls to provide ongoing funding for the costs and expenses required to service and maintain the landscaping improvements and appurtenant facilities that are necessary and essential requirements for the properties within the District. The improvements to be provided by the District and the assessments described herein are made pursuant to the 1972 Act and the substantive and procedural provisions of the California Constitution.

This Report describes the District, the improvements, and the assessments levied against properties in connection with the special benefits that the properties will receive from the maintenance and servicing of the District improvements and facilities commencing in Fiscal Year 2026/2027. The assessments described herein will provide a funding source (annual assessments) for the continued operation and maintenance of the Landscaping improvements that are directly associated with the development of properties within the District and for the special benefit of those properties.

The budgets and assessments described in this Report are based on the planned improvements and development associated with the Gateway Industrial Park. The budgets described herein, represent an estimate of the direct expenditures, incidental expenses, and fund balances that will be necessary to ensure proper maintenance, servicing and funding needs to support the landscaping improvements that provide special benefit to properties within the District. In the event the property owners want to add additional streetlights or update existing streetlights this will be at the discretion of the property owners and the expense of maintaining the new and/or updated streetlights will revert to the property owners and become a line item in the annual budget. Property Owners and City will discuss any modifications to the District improvements. 113
FY 2026/2027 Shasta Gateway Industrial Park Landscape Maintenance District Page 2

This Report consists of five (5) parts:

Part I
Plans and Specifications: A description of the District boundaries and the improvements associated with the District. The District was formed with a single benefit zone encompassing all properties within the territory identified as Shasta Gateway Industrial Park.

Part II
Method of Apportionment: A discussion of benefits the improvements and services provide to properties within the District and the method of calculating each property’s proportional special benefit and annual assessment. This section also identifies and outlines an Assessment Range Formula that provides for an annual adjustment to the maximum assessment rate that establishes limits on future assessments, but also provides for reasonable cost adjustments due to inflation without the added expense of additional property owner protest ballot proceedings.

Part III
District Budget: An annual cost to operate, maintain and service landscaping improvements related to the properties within the District. This budget includes direct maintenance costs and incidental expenses including, but not limited to, administration expenses and the collection of appropriate fund balances to establish the initial Maximum Assessment Rates approved by the property owners of record. The special benefit assessments are based on an estimate of the overall operation, maintenance and servicing costs, minus any costs that are not assessed as special benefit. The assessments for each subsequent year shall be based on the estimated net annual cost for the City to operate, maintain and service the improvements for that fiscal year including the collection of funds in installments for periodic or long-term maintenance activities. The Maximum Assessment Rates (Rates per Equivalent Benefit Unit) identified in the budget of this Report establishes the initial Maximum Assessment Rates for the District in Fiscal Year 2026/2027 and shall be adjusted annually by the Assessment Range Formula described in the method of apportionment.
114
FY 2026/2027 Shasta Gateway Industrial Park Landscape Maintenance District Page 3

Part IV
District Diagram: A Diagram showing the exterior boundaries of the District is provided in this Report and includes all parcels that will receive special benefits from the improvements. Parcel identification, the lines and dimensions of each lot, parcel, and subdivision of land within the District, are inclusive of all parcels as shown on the Shasta County Assessor's Parcel Maps as they existed at the time this report was prepared and includes all subsequent subdivisions, lot line adjustments or parcel changes therein.

Reference is hereby made to the Shasta County Assessor’s maps for a detailed description of the lines and dimensions of each lot and parcel of land within the District.

Part V
Assessment Roll: The assessment amount for each parcel is based on the parcel’s proportional special benefit as outlined in the method of apportionment and the initial Maximum Assessment Rates established in this Report. The Assessment Roll also provides the assessment amount for each parcel for the Fiscal Year 2026/2027 based on the method of apportionment and estimated expenses (budget) for Fiscal Year 2026/2027.
115
FY 2026/2027 Shasta Gateway Industrial Park Landscape Maintenance District Page 4

I. PLANS AND SPECIFICATIONS
A. BENEFITING PROPERTIES WITHIN THE DISTRICT
Shasta Gateway Industrial Park consists of fifteen (15) non-residential lots and one (1) street. The area will include landscaping improvements.

The purpose of the District is to ensure the ongoing maintenance, operation, and servicing of landscaping improvements installed in connection with development of properties within the District. This District will provide the financial mechanism (annual assessments) by which the ongoing operation and maintenance of these improvements will be funded.

The District structure, proposed improvements, method of apportionment and assessments described in this Report are based on current development and improvement plans including all estimated direct expenditures, incidental expenses, and reserves associated with the maintenance and servicing of the improvements.

The District is located within the City of Shasta Lake, generally located east of Ashby Road, and Shasta Gateway Drive in all directions.

B. IMPROVEMENTS AND SERVICES
The purpose of this District is to fund the landscaping and irrigation improvements within the District. The property owners in the District will fund the costs associated with the maintenance and servicing for labor, electrical energy, water, materials, contracting services, administration, and other expenses necessary for the satisfactory maintenance and servicing of these improvements.

Detailed maps and descriptions of the location and extent of the improvements to be maintained by the District are on file with the Public Works Division and by reference are made part of this Report. The net annual cost to provide and maintain the improvements determined to be of special benefit shall be allocated to each property in proportion to the special benefits received from those improvements. The District improvements and services are generally described as:

Landscape Improvements
The landscape improvements to be funded by the District assessments is located in the common areas and the median on Shasta Gateway Drive to include sixty-four thousand four hundred (64,400) square feet of ground covering, shrubs, vines, lawn care, and plants; sixty-six (66) irrigated trees; as well as irrigation and drainage systems. The complete maintenance specs are on file with the City.

There are eleven (11) street lighting poles within the Shasta Gateway Industrial Park which the City will continue to fund and maintain.
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II. METHOD OF APPORTIONMENT
The 1972 Act permits the establishment of assessment districts by agencies for the purpose of providing certain public improvements, including the acquisition, construction, installation and servicing of landscape improvements and related facilities. The 1972 Act requires that the cost of these improvements be levied according to benefit rather than assessed value:

Section 22573 defines the net amount to be assessed as follows:
“The net amount to be assessed upon lands within an assessment district may be apportioned by any formula or method which fairly distributes the net amount among all assessable lots or parcels in proportion to the estimated benefits to be received by each such lot or parcel from the improvements.”
The formula used for calculating assessments reflect the composition of parcels within the District and the improvements and activities to be provided and have been designed to fairly apportion the cost of providing those improvements based on a determination of the proportional special benefits to each parcel, consistent with the requirements of the 1972 Act and the provisions of Proposition 218 and Article XIIID of the California Constitution.

A. BENEFIT ANALYSIS
The improvements provided within the District, for which properties will be assessed have been identified as necessary, desired and/or required for the orderly development of the properties within the District to their full potential, consistent with the development plans.

Special Benefit
The ongoing maintenance of landscaped areas within the District will provide aesthetic benefits to the properties and are intended to provide a more pleasant environment to walk, drive, live, and work. The primary function of these improvements and related amenities is to serve as an aesthetically pleasing enhancement and open space area for the benefit of the immediate surrounding properties and development for which the improvements were constructed and installed, and/or were facilitated by the development or potential development of properties within the District. These improvements are an integral part of the physical environment associated with the parcels in the District and while these improvements may in part be visible to properties outside the District and/or occasionally accessed by the general public, if these improvements are not properly maintained, it is the parcels within the District that would be aesthetically burdened and/or impacted directly by potential environmental issues such as dust, debris, pests, water runoff, erosion, and fire hazards. Thus, the maintenance of these improvements provides advantages to the assessed properties that affect the assessed parcels in a way that is particular and distinct from their effect on other parcels and that real property in general and the public at large do not share.
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Collectively these improvements, related amenities, and services which will be funded by the special benefit assessments, enhance the overall use, presentation, enjoyment, recreational access, and marketability of the properties, and ensure the long-term costefficiency of services that are obtained through the County provided maintenance (economy of scale).

General Benefit
In reviewing the location and extent of the specific landscaped areas and improvements to be funded by the District assessments and the proximity and relationship to properties to be assessed, it is evident these improvements have been installed as part of the development of properties within the District or are improvements that would otherwise be shared by and/or required for development of those properties. Although the improvements are largely located along Shasta Gateway Drive as well as the median on Shasta Gateway Drive and may be visible and/or accessible to the general public, it is evident that the ongoing maintenance of these improvements are only necessary for the appearance and advantage of the properties within the District. It is also evident that these improvements were not required nor necessarily desired by any properties or developments outside of the District boundaries.

In the absence of a special funding, these types of improvements would not have been installed by the developer per the City’s conditions and the City’s maintenance of these improvements would for the most part, be limited to weed abatement (fuel modification areas), rodent control, and erosion control services only. This basic or baseline level of service would typically provide for periodic servicing of the open space areas on an asneeded basis. This baseline level of service would only provide a level of service that was necessary to ensure public safety, essential property protection and potential property damage. However, this baseline level of service results in a far less visually pleasing environment than is created with the enhanced levels of services associated with the regular landscape maintenance that can be provided through the District assessments.

In addition to this baseline level of service, it is recognized that there are indirect or incidental benefits to properties within the District as well as the general public that are associated with regular landscape maintenance services, including minimization of dust and debris, and decreased potential water runoff from the open space areas.

It is also recognized that with the regular maintenance of the improvements, the effort and cost to monitor and address these more indirect issues are reduced to isolated areas and/or less frequent servicing, and these activities generally represent less than two percent (2%) of the overall maintenance costs. Therefore, if the District did not exist and the City had to maintain the area at a minimum level it is estimated that the costs associated with these indirect and incidental benefits would not exceed five percent (5%) of the combined annual expenses for General Maintenance identified in the annual maintenance budget contained in "Part III – The District Budget” of this Report. 118
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B. ASSESSMENT METHODOLOGY
The method of apportionment for the District calculates the receipt of special benefit from the respective improvements based on the actual or proposed land use of the parcels within the District. The special benefit received by each lot or parcel is equated to the overall land use of the parcel based on the parcel’s actual land use or proposed planned development and is reliant upon the special benefit received from the improvements planned within the District.

To identify and determine the special benefit to be received by each parcel, it is necessary to consider the entire scope of the District improvements as well as individual property development within the District. The costs associated with the improvements shall be fairly distributed among the parcels based upon the special benefit received by each parcel. Additionally, in compliance with Article XIIID Section 4 of the State Constitution, each parcel’s assessment may not exceed the reasonable cost of the proportional special benefit conferred to that parcel. The benefit formula used to determine the assessment obligation is therefore based upon both the improvements that benefit the parcels within the District as well as the proposed land use of each property as compared to other parcels that benefit from those specific improvements.

C. EQUIVALENT BENEFIT UNITS
To assess benefits equitably it is necessary to calculate each property’s relative share of the special benefits conferred by the funded improvements and service. The Equivalent Benefit Unit (EBU) method of assessment apportionment is utilized for this District and establishes a basic unit (base value) of benefit and then calculates the benefit derived by each assessed parcel as a multiple (or a fraction) of that basic unit. The EBU method of apportioning special benefits is typically seen as the most appropriate and equitable assessment methodology for assessment districts, as the benefit to each parcel from the improvements are apportioned as a function of comparable property characteristics which may include but is not limited to land use and property size.

For the purposes of this Report, an EBU is the quantum of benefit derived from the various improvements in the District based on the average acres of single-family residential property. The average single-family home in the surrounding area equates to 0.2555 (0.25) acres of land. Thus, the "benchmark" property (the single-family residential parcel) derives one (1) EBU of benefit and would be assigned 1.00 Equivalent Benefit Unit if existed in place of commercial development, as such each net acre of commercial land would be assigned 4.00 EBU per net acre. At a meeting held on January 17, 2024, between the City and the property owners, it was decided to use the original net acres assigned to the original parcel numbers (see Appendix B). In any event the net acres were greater than the gross acres, gross acres were utilized instead of the original net acres assigned.

Pursuant to the 1972 Act, the costs of the District may be apportioned by any formula or method that fairly distributes the net amount to be assessed, among all assessable parcels in proportion to the estimated benefits to be received by each parcel from the improvements. The benefit formula used for the District should reflect the composition of 119
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the parcels, and the improvements and services provided, to fairly apportion the costs based on special benefit to each parcel.

EBU APPLICATION BY LAND
Commercial — This land use is defined as property designated for either commercial or industrial use. This type of property receives greater benefit than Single-Family or MultiFamily property due to typically larger lot sizes in relation to residential properties. With typical Single-Family Residential lot sizes in the City at 0.25 acres, Commercial land use type is assessed at 4.0 EBU per net acre. Parcels less than 0.25 net acres will be assigned a minimum of 1.0 EBU and there is no maximum net acreage cap.

Exempt Parcels — This land use identifies properties that are not assessed and are assigned 0.0 EBU. This land use classification may include, but is not limited to, lots or parcels identified as public streets and other roadways (typically not assigned an APN by the County); dedicated public easements, open space areas and right-of-way including greenbelts and parkways; utility right-of-way; common areas, sliver parcels and bifurcated lots or any other property that cannot be developed; publicly owned properties that are part of the District improvements or that have little or no improvement value. These types of parcels are considered to receive little or no benefit from the improvements and are therefore exempt from assessment.

The following table provides a listing of land use types, land use code designations, the Equivalent Benefit Unit factor applied to that land use type, and the multiplying factor used to calculate each parcel’s individual EBU.

Land Use Codes and Equivalent Benefit Units
Property Type Land Use
Code
Equivalent
Benefit Units Multiplier
Commercial COM 4.00 Net Acre
Exempt Parcel XMT 0.00 Parcel
D. ASSESSMENT CALCULATIONS
The total number of Equivalent Benefit Units (EBU’s) is the sum of all individual EBU's applied to parcels that receive special benefit from the improvements. An assessment amount per EBU (Assessment Rate) for the improvements is established by taking the total cost of the improvements and dividing that amount by the total number of EBU’s of all parcels benefiting from the improvements. This Rate is then applied back to each parcel’s individual EBU to determine the parcel’s proportionate benefit and assessment obligation for the improvements.

Total Balance to Levy / Total EBU = Levy per EBU
$48,621.54 / 125.88 = $386.25
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Levy per EBU x Parcel EBU = Parcel Levy Amount
$386.25 x 125.88 = $48,621.54
E. ASSESSMENT RANGE FORMULA
Any new or increased assessment requires certain noticing and meeting requirements by law. Prior to the passage of Proposition 218 (California Constitution Articles XIII C and XIII D), legislative changes in the Brown Act defined a "new or increased assessment" to exclude certain conditions. These conditions included "any assessment that does not exceed an assessment formula or range of assessments previously adopted by the agency or approved by the voters in the area where the assessment is imposed." This definition and conditions were later confirmed through Senate Bill 919 (Proposition 218 implementing legislation).

The purpose of establishing an Assessment Range Formula is to provide for reasonable increases and inflationary adjustment to annual assessments without requiring costly noticing and mailing procedures, which could add to the District costs. Commencing with Fiscal Year 2026/2027, the amount of the assessment for the District may be increased to adjust for increases in labor and material costs. This increase will be based upon the greater of three (3) percent or the annual change in the Consumer Price Index, All Urban Consumers, for the San Francisco-Oakland-Hayward, CA area, as determined by the United States Department of Labor, or its successor, without conducting another mailed ballot election.

The Maximum Assessment is adjusted annually and is calculated independent of the annual budget and proposed annual assessment. Any proposed annual assessment (rate per EBU less than or equal to this Maximum Assessment) is not considered an increased assessment, even if the proposed assessment is greater than the assessment applied in the prior fiscal year.

Although the Maximum Assessment will increase each year, the actual assessment may remain unchanged. The Maximum Assessment adjustment is designed to establish a reasonable limit on assessments. The Maximum Assessment calculated each year does not require or facilitate an increase to the annual assessment and neither does it restrict assessments to the adjusted maximum amount. If the budget and assessment for the fiscal year do not require an increase, or the increase is less than the adjusted Maximum Assessment, then the required budget and assessment may be applied without additional property owner balloting. If the budget and assessments calculated requires an increase greater than the adjusted Maximum Assessment, then the assessment is considered an increased assessment and would be subject to balloting. 121
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III. DISTRICT BUDGET
The following budget outlines the estimated annual costs to be collected and deemed necessary for the operation, maintenance, and servicing of the improvements for the District. The maximum assessment (Rate per Equivalent Benefit Unit) identified by this budget establishes the initial maximum assessment for the District in Fiscal Year 2026/2027. This assessment rate shall be adjusted annually by the Assessment Range Formula described in the method of apportionment and collectively this assessment rate and inflationary adjustment will be presented to the property owners of record for approval as part of the balloting process for new or increased assessments in accordance with the provisions of the California Constitution, Article XIII D.

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Shasta Gateway Industrial Park Landscape Maintenance District Levy Component Shasta Gateway Industrial
LMD
Landscape Maintenance $28,000
Landscape Utilities 12,190
Total Direct Costs $40,190

Levy Administration and Professional Services $4,611
County Collection Fee 70
City Overhead and Administration 250
Total Administration Costs $4,932

TOTAL DIRECT AND ADMIN COSTS $45,122

Reserve Collection/(Transfer) $0
Capital Improvement Fund Collection/(Transfer) 3,500
General Benefit Contribution 0
General Fund/Other Revenue(Contributions) 0
Total Collections/(Credits) $3,500
Balance to Levy (Budgeted) $48,622

Total Parcels 16
Total Parcels Levied 15
Total Equivalent Benefit Units 125.88
Applied Assessment Rate per EBU $386.2545
Maximum Rate per EBU (Current Fiscal Year) $462.2428
Maximum Rate per EBU (Prior Fiscal Year) $448.7794

Estimated Beginning Reserve/Capital Improvement Fund Balance $30,350 Capital Improvement Fund Adjustments 3,500
Estimated Ending Reserve/Capital Improvement Fund
Balance (as of 6/30/2027)
$33,850
Note: Totals may not foot due to rounding.
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IV. DISTRICT DIAGRAM
The following District Diagram identifies the area of land within the District to be designated as “Shasta Gateway Industrial Park Landscape Maintenance District”, based on the development and improvement plans for the District, Shasta County Assessor’s Maps, and Shasta County Assessor’s property information as the same existed at the time this Report was prepared. The District includes the parcels located on Shasta County Assessor’s Parcel Map Book 064 Page 440. The combination of this map and the Assessment Roll contained in Part V of this Report constitute the Assessment Diagram for the District. The maximum assessment rate, assessment range formula and the proposed assessment amount for each of the lots and parcels of land within the District, as described herein, shall be presented to the property owners of record for approval or protest in accordance with the provisions of the California Constitution.

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V. ASSESSMENT ROLL
Parcel identification for each lot or parcel within the District is outlined in the preceding Assessment Diagram and is based on available parcel maps and property data from the Shasta County Assessor’s Office at the time this Engineer’s Report was prepared. A listing of the lots and parcels to be assessed within this District in Fiscal Year 2026/2027, along with the assessment amount for each such lot or parcel is provided below.

If any parcel submitted for collection is identified by the County Auditor-Controller to be an invalid parcel number for the fiscal year, a corrected parcel number and/or new parcel numbers will be identified and resubmitted to the County Auditor-Controller. The assessment amount to be levied and collected for the resubmitted parcel or parcels shall be based on the method of apportionment and assessment rates described in this Report as approved by the City Council. Therefore, if a single parcel is subdivided to multiple parcels, the assessment amount applied to each of the new parcels shall be recalculated and applied according to the approved method of apportionment and assessment rate rather than a proportionate share of the original assessment amount.
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Lot
Number
Original
Assessor's Parcel
Number
Assessor's
Parcel Number Owner
Secured
Gross
Acre
Net
Acre (1) EBU (1) Applied Assessment
Maximum
Assessment
1 064-440-001-000 064-440-001-000 EVANS ROCKY LIVING
TRUST 2.06 1.49 5.96 $2,302.06 $2,754.97
2, 3,
4 (2)
064-440-021-000 &
064-440-004-000 064-440-035-000 LAWSON 2011 TRUST 2.31 2.02 8.08 3,120.92 3,734.92 5 064-440-005-000 064-440-005-000 DORIO FAMILY TRUST
ETAL 6.69 2.04 8.16 3,151.82 3,771.90
6 064-440-017-000 064-440-017-000 LAHAR DEVELOPMENT
LLC 3.81 1.75 7.00 2,703.78 3,235.70
7 064-440-029-000 064-440-029-000 SHASTA LAKE CITY OF 1.40 0.80 3.20 1,236.00 1,479.18 8 064-440-008-000 064-440-008-000 SHASTA LAKE CITY OF 0.92 0.56 2.24 865.20 1,035.42 9 064-440-009-000 064-440-009-000 SHASTA LAKE CITY OF 0.84 0.52 2.08 803.19 961.47 10 064-440-010-000 064-440-010-000 MCKENNY NEAL ETAL 3.62 2.93 11.72 4,526.90 5,417.49 11 064-440-026-000 064-440-026-000 RAW INNOVATIONS
LLC 3.04 2.20 8.80 3,399.02 4,067.74
12 064-440-025-000 064-440-025-000 TAU WEST LLC 1.98 2.93 7.92 3,059.12 3,660.96 13A 064-440-023-000 064-440-023-000 TAU WEST LLC 5.10 2.94 11.76 4,542.34 5,435.98 13B 064-440-028-000 064-440-028-000 TAU WEST LLC 1.98 2.51 7.92 3,059.12 3,660.96 14A (3) 064-440-014-000 064-440-030-000 HULI INVESTMENTS LLC 3.70 2.41 9.63 3,720.54 4,452.51
14B (3) 064-440-014-000 064-440-036-000 HULI INVESTMENTS LLC 8.10 5.27 21.09 8,145.18 9,747.59
15 064-440-015-000 064-440-015-000 LIBERTY GATEWAY
LLC 3.33 2.58 10.32 3,986.14 4,770.35
Street 064-440-016-000 064-440-016-000 SHASTA DAM P U D 4.83 N/A 0.00 0.00 0.00 Totals 53.71 32.95 125.88 $48,621.54 $58,187.12
(1) In the event the Net Acreage is more than the Secured Gross Acreage, utilize Secured Gross Acreage for the EBU calculation. (2) Lots 2, 3, and 4 combined into 064-440-035-000.
(3) Lot 14 split into 064-440-030-000 and 064-440-036-000. *Totals may not foot due to rounding.
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APPENDIX A. 1972 ACT IMPROVEMENTS
As generally defined by the Landscaping and Lighting Act of 1972 and applicable to this District, the improvements and associated assessments may include one or more of the following:
 The installation or planting of landscaping;
 The installation or construction of statuary, fountains, and other ornamental structures and facilities;
 The installation or construction of public lighting facilities including, but not limited to streetlights and traffic signals;
 The installation or construction of any facilities which are appurtenant to any of the foregoing, or which are necessary or convenient for the maintenance or servicing thereof;
 The installation of park/recreational improvements, including, but not limited to the following:
a. Land preparation, such as grading, leveling, cutting, and filling, sod, landscaping, irrigation systems, sidewalks, and drainage. b. Lights, playground equipment, play courts, and public restrooms. c. The acquisition of land for park, recreational, or open-space purposes or any existing improvement otherwise authorized pursuant to this section.  The maintenance or servicing, of any of the foregoing including the furnishing of services and materials for the ordinary and usual maintenance, operation, and servicing of any improvement including but not limited to:
a. Repair, removal, or replacement of all or any part of any improvements; b. Grading, clearing, removal of debris, the installation or construction of curbs, gutters, walls, sidewalks, or paving, or water, irrigation, drainage, or electrical facilities;
c. Providing for the life, growth, health, and beauty of landscaping, including cultivation, irrigation, trimming, spraying, fertilizing, or treating for disease or injury;
d. The removal of trimmings, rubbish, debris, and other solid waste; e. The cleaning, sandblasting, and painting of walls and other improvements to remove or cover graffiti;
f. Electric current or energy, gas, or other illuminating agent for any public lighting facilities or for the lighting or operation of any other improvements; g. Water for the irrigation of any landscaping, the operation of any fountains, or the maintenance of any other improvements.
 Incidental expenses associated with the improvements including, but not limited to:
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a. The cost of preparation of the report, including plans, specifications, estimates, diagram, and assessment;
b. The costs of printing, advertising, and the publishing, posting, and mailing of notices;
c. Compensation payable to the County for collection of assessments; d. Compensation of any engineer or attorney employed to render services;  Any other expenses incidental to the construction, installation, or maintenance and servicing of the improvements;
 Costs associated with any elections held for the approval of a new or increased assessment.
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APPENDIX B. NET ACREAGE
Lot Number
Original Assessor’s
Parcel Number Net Acreage
1 064-440-001 1.49
2 064-440-021 0.63
3 Merged w/ 2 0.72
4 064-440-004 0.67
5 064-440-005 2.04
6 064-440-017 1.75
7 064-440-007 0.8
8 064-440-008 0.56
9 064-440-009 0.52
10 064-440-010 2.93
11 064-440-026 2.2
12 064-440-025 2.93
13A 064-440-023 2.94
13B 064-440-028 2.51
14 064-440-014 7.68
15 064-440-015 2.58
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Report and Recommendations 8.1
Reviewed and Approved
_________________________
City Manager

AGENDA ITEM
City Council Meeting ___________________________________________________________________________ TO: Mayor and City Council Members
FROM: Jessaca Lugo, City Manager
DATE: June 16, 2026
SUBJECT: ESTABLISHMENT OF AN AD HOC ENTERTAINMENT ZONE

COMMITTEE
FILE NO.:

RECOMMENDATION
Adopt a motion establishing a City Council Ad Hoc Entertainment Zone Committee consisting of two Council Members to work with staff in the development of a proposed Entertainment Zone Ordinance and recommended Entertainment Zone boundary map for future City Council consideration.

BACKGROUND
Senate Bill 969 (Wiener), effective January 1, 2025, authorizes cities to establish Entertainment Zones through the adoption of a local ordinance. Entertainment Zones allow the consumption of alcoholic beverages within designated public areas, subject to requirements established by state law, the California Department of Alcoholic Beverage Control (ABC), and local regulations.

The legislation provides local governments with an economic development tool to support businesses, special events, tourism, and commercial district revitalization. To establish an Entertainment Zone, the City must adopt an ordinance, define zone boundaries, and establish operational and public safety standards.

The City of Redding has recently adopted and implemented an Entertainment Zone, providing a local example of how the program can be used to support businesses and community events while maintaining appropriate public safety measures.

Staff believes an Entertainment Zone may provide opportunities to enhance community events, support local businesses, and encourage economic activity within designated commercial areas. 131
Given the policy considerations involved, staff recommends the formation of a City Council Ad Hoc Committee consisting of two Council Members to work with staff and business owners on the development of a proposed Entertainment Zone ordinance and boundary map.

The Ad Hoc Committee would serve in an advisory capacity and provide input on potential locations, operational standards, public safety considerations, and stakeholder outreach. Any proposed ordinance and boundary map would return to the full City Council for future consideration and action.

FISCAL IMPACTS
There is no fiscal impact associated with this informational item.

ATTACHMENTS
None

DISTRIBUTION
City Council
132
Report and Recommendations 8.2
Reviewed and Approved
City Manager

AGENDA ITEM
City Council
TO: Mayor and City Council Members
FROM: Whitney Zeller, Community and Economic Development Manager DATE: June 16, 2026
SUBJECT: RECOMMENDATION FROM THE PARKS AND RECREATION

ADVISORY COMMISSION TO NAME THE NEW SHASTA LAKE
DISC GOLF FACILITY, “SUMMIT’S EDGE”
FILE NO.: Please include file number if one exists

RECOMMENDATION
Staff recommends that the City Council adopt a resolution accepting the Parks and Recreation Advisory Commission’s recommendation to name the new disc golf facility, located on the 26-acre site southeast of Bizz Johnson Park, “Summit’s Edge”, in accordance with the City’s Facility Naming Policy.

BACKGROUND
The City of Shasta Lake is in the final stages of constructing a new disc golf course, a highly anticipated addition to the community's recreational offerings. To align with the City’s Facility Naming Policy, the naming process should ensure public engagement and reflect the community's cultural, historical, and geographical significance.

The naming process was initiated on April 10, 2026, with a link to the submittal form shared via social media, the city website, and the online notification system. As of the closing date, April 30, 2026, there were 25 submissions for the name suggestion form. In accordance with the Facility Naming Policy, City staff reviewed names for compliance, and a complete list of submittals was provided to the Parks and Recreation Advisory Commission for consideration.

Per the Policy, proposed names should:
• Align with the values and identity of the City of Shasta Lake 133
• Evoke a strong, positive image
• Be respectful and inclusive of the community
• Avoid duplication of existing facility names
• Have broad public support
At their May 28, 2026 meeting, the Parks and Recreation Advisory Commission reviewed the submissions, received public comment, and voted unanimously to recommend the name “Summit’s Edge” to the City Council for final approval.

The suggested name is believed to best fit the naming policy, aligning with the identity of Shasta Lake, and reflect the unique features of the Disc Golf Course site.

FISCAL IMPACTS
No fiscal impact related to this item

ATTACHMENTS
Resolution CC 2026-XX
Name Suggestion Submittals
City of Shasta Lake Facility Naming Policy

DISTRIBUTION
City Council
134
RESOLUTION CC 2026-XX

A RESOLUTION OF THE CITY COUNCIL OF THE CITY OF SHASTA LAKE APPROVING THE NAME “SUMMIT’S EDGE” FOR THE NEW DISC GOLF COURSE FACILITY LOCATED ON THE 26-ACRE SITE SOUTHEAST OF BIZZ JOHNSON PARK
WHEREAS, the City of Shasta Lake is completing construction of a new disc golf course facility located on the 26-acre site southeast of Bizz Johnson Park; and WHEREAS, the naming of City facilities is governed by the City’s Facility Naming Policy, which encourages community engagement and selection of names that reflect the City’s cultural, historical, and geographical significance; and WHEREAS, the City conducted a public naming process between April 10, 2026, and April 30, 2026, during which 25 name submissions were received and reviewed in accordance with the policy; and
WHEREAS, the Parks and Recreation Advisory Commission held a public meeting on May 28, 2026, to review the eligible submissions and unanimously voted to recommend the name “Summit’s Edge”; and
WHEREAS, the recommended name aligns with the goals and criteria of the Facility Naming Policy by evoking a positive image, referencing a historical area of Shasta Lake, and reflecting the recreation opportunity the course offers; and NOW, THEREFORE, BE IT RESOLVED that the City of Shasta Lake hereby approves the name “Summit’s Edge” for the disc golf course facility located on the 26-acre site southeast of Bizz Johnson Park.

PASSED, APPROVED, AND ADOPTED this 16th day of June, 2026, by the following vote:

AYES:

NOES:

ABSENT:

JUSTIN JONES, Mayor
ATTEST:

CHARITY TATLOW, CMC
City Clerk
135
Category Proposed Facility Name: # of Submittals
1 Summit City Disc Golf Course 2
1 Boomtown Ascend Disc Golf Course 1 1 Local History/Culture 1 Summit's Edge Disc Golf Course 2 2 Scenery/Nature
1 The Dam Course or The Big Dam Course 1 3 Disc Golf
2 SL Sky Blue Disc 1 4 Rick and Brian Hargrave
1 The Spillway Fairways 1 5 George Sleezer
1 Boomtown Disc Golf Course 3 6 Other
4 Hargrave Disc Golf Course 1
2 Osprey's reach 1
2 Three Shastas Disc Golf Course 2
4 Hargraves Hallow Disc Golf Course 1
5 Sleezers Summit DGC 1
1 Boomtown Hills DGC 1
3 Frizz-Be Park 1
1 The Dam Disco 1
6 Pegasus - Disc Golf 1
1 Toyon Disc Golf of Shasta Lake 1
6 DG Vibing at Shasta Lake 1
1 Winnemem Park 1
2 Sky Summit 1
Category Key
136
Proposed Facility Name: Reason for the suggested name: How does this name align with the cultural, historical, or geographical significance of Shasta Lake? How does this name reflect community values and identity? Does this name have broad community
support? If so, please provide details (e.g.,
petitions, letters of support, endorsements):

Are there any potential conflicts or
concerns with this name? If so,
please explain:

If proposing to name the skatepark after an
individual, please include the name of the individual
and their contribution to the community:

Local History/Culture
Summit City Disc Golf Course
The course is located in the area formerly known
as Summit City. It fits with the terrain of the
course. Most of the disc golf courses in the area
are named for their location, which makes it easy
for people to associate the course with the
location.

As stated above, it reaches back to a time, not so long ago, that many of the current residents of the area remember well, including myself. I think it would be very much appreciated by the adjoining community.

See above.

I have not advertised it, but I will do that and
provide some additional feedback before
April 30th.

None that I am aware of. N/A
Boomtown Ascend Disc Golf Park
That area is known for the Boomtown BMX Track.

Its the Boomtown area. Ascend refers to moving
UP!! I love the terrain its on. Seeing it turned i to
something fun and positive, is moving UP!!
Our area was known as Boomtown. Boomtown Ascend is moving up in the world and becoming a place people want to be. Just me. None that i know of.

Summit City Disc Golf Itâ€™s historical to the area Itâ€™s the original town name It keeps the namesake of the town Idk No Summitâ€™s Edge Disc Golf Course
We believe the name Summitâ€™s Edge Disc Golf
Course is particularly fitting for two key reasons.

First, the areaâ€™s rich history. The courseâ€™s
location being in the previously named Summit
City, it provides a meaningful connection to the
communtyâ€™s past. Second, the courseâ€™s
terrain features multiple prominent
â€œsummits,â€ one of which is poised to become
the signature hole, adding a distinctive and
memorable element to the courseâ€™s desig
The name Summitâ€™s Edge is in reference to both the history, and topography of the course. Located in what was Summit City it shared that historical significance and those familiar with the property are aware of the siteâ€™s elevation change which is part of what makes this course great!
We believe a course of this Caliber deserves a name with the intrigue to get the blood flowing. Summitâ€™s Edge is a name that you could create a brand around and have an identity of its own.

Yes! We have multiple signatures from
people within the local community and
within the disc golf community.

Iâ€™ve done extensive research
and there are no current courses
that share this name.

The Dam course or The Big Dam course Shasta Dam. Shasta dam up the road Shasta dam Iâ€™d say we all love and need the Shasta dam I donâ€™t think so
The spillway fairways The dam spillway. The dam The town was build around the dam No No "BOOM"TOWN!
Golfer say boom on nice shots. Plus this history
behind the name to the local area. Im also a 20
year disc golfer local to the area.

Boomtown! Hidtory Yes check northen flights fb page No N/A Summitâ€™s Edge Disc Golf Course It reflects historical values and describes what it is.

Since it is in the area of what used to be called(and still is called by some folks) Summit City It aligns with the historical significance of the area I would like to think that it would be supported. No Boomtown disc golf course It's always been known as boomtown History This community nickname is boomtown All of Shasta county disc golfers. Northern
flights disc golf club, Shasta series,and
Blue collar disc golf league of Redding
No
Boomtown Hills DGC It gives homage to the original town name and highlights the eleveation of the course It gives homage to the original town name and highlights the eleveation of the course It would be fitting and it has an elevated feel to the name No N/a The Dam Disco Incorporates both the "Dam" street name and the disc golf activity The dam is part of Shasta Lake Discourse are known as fun, activities, and this golf course will be the same N/a Some people may object and think that we mean a different dam Boomtown It's a good name Synonymous with the area ITS Recognizable Yes Should not be Toyon Disc Golf of Shasta Lake Ties to the history of the city, unique name Yes History Not sure Not that I know of Winnemem Park Tribute to the original inhabitants of the region It showcases the original native peoples presence in the area and helps to create a tie between people and the natural land.

Scenery/Nature
SL Sky Blue Disc You have beautiful skies up in Shasta Lake. Shasta Lake is the entrance to the mountains, has the most beautiful skies! The old addage is â€œSkyâ€™s the limitâ€, Shasta Lake has over come obstacles to be known as a place to go, and enjoy, life. Have not asked for any support. No, there are not.

Ospreyâ€™s reach I grew up in Chester Lake and I remember seeing ospreyâ€™s flying through the air Razor iconic to Shasta Lakes Lake Shores It will bring more people out to see ospreys and possibly want to learn more I donâ€™t know No Three Shastas Disc Golf Course
I think the course's proximity to the three Shastas
overlook is a great reason for the name. I also
think that tying the course in to another local
landmark is a great way to increase tourism.

Less than 3 miles up the road is the famous three Shastas overlook, where you get a fantastic view (on a clear day) of Mt. Shasta, Shasta Dam, and Shasta Lake. It ties in to another local attraction. Not as of yet No.

Three Shastas DGC Mt Shasta, Lake Shasta and Shasta Dam Mt Shasta, Lake Shasta and Shasta Dam Mt Shasta, Lake Shasta and Shasta Dam Mt Shasta, Lake Shasta and Shasta Dam No Sky Summit Mtn course Summit City reference Sky is the limit I've been active in Redding area disc golf for over 25 years. None
Disc Golf
Frizz-Be Park Its a frisby park! Its next to bizz johnson park. Its name is meaningful and relevant to its purpose. No. No. No.

Rick and Brian Hargrave
Hargrave Disc Golf Course
Rick and Brian Hargrave are incredibly active
members of the Shasta Lake community, and a
significant portion of their volunteer time includes
teaching Shasta Lake youth about disc golf. They
volunteer at schools in our city to create teams
and get kids active and interested in sport and
nature!
Recognizing and honoring two community members who have been actively involved in the disc golf community in Shasta Lake City Recognizing volunteer leadership within the City of Shasta Lake Unknown. I would be happy to find some; I
know some community members who
would support it.

Unknown Rick and Brian Hargrave. Please see above. Iâ€™d be happy to elaborate if needed!
Hargraves Hallow disc golf course
Rick and Brian Hargrave worked hard on this
project and pour their heart and soul into so many
other projects in I the Damboree
The Hargrave family is a respected well know family in the community since at least the 70s and have own multiple businesses and served the community for decades Honoring our amazing volunteers No No Rick and Brian Hargrave. Damboree, City of Shasta Lake extraordinaires!
George Sleezer
137
Sleezers summit DGC
I feel it perfectly blends the original settler (George M. Sleezer) with the neighborhood identity
(Summit City). It sounds natural, historic and has a
local feel.
"Sleezerâ€™s Summit" is arguably the most "authentic" name you could pick because it bridges the three distinct eras of that specific piece of land: the pioneer era, the construction era, and the modern community. Here is the breakdown of why that name carries so much weight for a course in that exact spot: ## 1. It honors the "First Resident" (Historical) Before there was a dam, a school, or a city, there was George M.

Sleezer. By using his name, you aren't just naming a course; youâ€™re marking a "Point of Origin." The Connection: Most people know about the dam, but few know about the Civil War veteran who homesteaded that dirt when it was just brush and oak trees. It gives the course a "legacy" feel, as if the land is reclaiming its 19th-century roots. #2. It defines the "High Ground" (Geographical) The word "Summit" is the geographical DNA of that neighborhood. The Landscape: As the name "Summit City" suggests, that area sits on the ridge overlooking the Sacramento River canyon (where the dam now sits). The Playability: In disc golf, a "Summit" implies elevation changesâ€”uphill grinds and downhill bombs. It tells players exactly what to expect from the terrain: youâ€™re playing on the literal high point of the city's history. #3 It links to the "Toyon School" Miracle The Sleezer homestead wasn't just "nearby"â€”it was the exact foundation for the original Toyon School. * Community Spirit: That specific piece of land represents the moment the "boomtown" became a "hometown." When the workers built that school on Sleezerâ€™s old property in three weeks, they turned a temporary work camp into a permanent society. * The Irony: Calling it "Sleezerâ€™s Summit" honors the man who owned the land before it became a government project, which is a cool nod to the independent spirit of Northern California. #4. It sounds like a "Destination" In the world of disc golf, names like "DeLaveaga" or "Maple Hill" carry prestige. "Sleezerâ€™s Summit" has a similar phonetic ring. * Alliteration & Flow: The "S" sounds make it easy to say and remember. The Identity: It separates the course from the "industrial" feel of the dam and makes it feel like a natural, rugged park. It sounds like a place you'd travel to play, rather than just a local neighborhood course. The "Vibe" Summary: If you go with "Sleezer's Summit," the course logo could even incorporate elements of a Civil War cap or a pioneer's axe mixed with a disc, instantly giving the course a deep, "old-growth" personality that most new courses lack. Does the course have a lot of elevation changes or views of the dam, or is it more of a flat, wooded layout? The name Sleezerâ€™s Summit reflects the communityâ€™s values because it captures the "get it done" spirit that defines the City of Shasta Lake. This isn't just a town that happened; itâ€™s a town that was built by hand during a crisis (the Great Depression).

Here is how that specific name taps into the local identity: ## 1. The Spirit of "Volunteerism" The history of this land is defined by people showing up to build something for the common good. * The Value: In 1938, the community built the Toyon School on Sleezer's land in just three weeks. * The Connection: Placing a disc golf course there todayâ€”likely through local effort and city partnershipâ€”continues that tradition of community-built spaces. The name "Sleezerâ€™s Summit" honors the person who provided the "ground" for the community to grow. ## 2. Resilience and "Pioneer" Roots Shasta Lake residents often take pride in being a bit more rugged and independent than their neighbors in larger cities. * The Value: George M. Sleezer was a Civil War veteran and a homesteader. He represents the grit required to settle the North State. * The Connection: Disc golf is a rugged, outdoor sport. Using the name of a pioneer veteran resonates with the local value of strength and endurance. It says this isn't just a manicured park; itâ€™s a place with history and backbone. ## 3. Merging the "Five Towns" Identity The City of Shasta Lake is unique because it was formed from five different settlements (Central Valley, Project City, Summit City, Toyon, and Pine Grove). * The Value: There is a deep respect for the individual histories of these small hubs. * The Connection: By using "Sleezer" (the man) and "Summit" (the neighborhood), you are specifically highlighting the Summit City/Toyon corner of the city. It shows a commitment to preserving the "neighborhood" feel even as the city grows. It tells long-time locals that their specific history isn't being erased by new developments. ## 4. A Multi-Generational Connection Many families in the area have "Great-Grandpa worked on the dam" stories or "I went to Toyon School" memories. * The Value: Family legacy is a massive part of the cityâ€™s social fabric. * The Connection: A name like "Sleezerâ€™s Summit" invites a conversation between a kid playing the course today and their grandparent. It bridges the gap between 1860 (Sleezer), 1938 (Toyon School), and 2024 (the new course). It turns a simple game of disc golf into a walk through the family timeline. In short: The name reflects a community that values hard work, local history, and the outdoors. It honors the people who were there first while creating a "summit" for the next generation to enjoy.

No
I haven't heard any and I've
mentioned it to quiet a few local
disc golfers
George M. Sleezer
Georges contribution to the community was
providing the literal and symbolic foundation for the
region's development By building his home and
establishing a homestead near what became
Summit City, he helped transition the area from a
wild frontier into a place where families could
eventually settle.

Other
Pegasus - Disc Golf Flying Discs - Flying Horse We are always going up! We always "Rise Above" I hope so! No! None! DG Vibing at Shasta Lake Connects disc golf (DG) with the contemporary idea of vibing together
Ideal disc golf course names connect the course name with the location so players know where it is
Already mentioned that Vibing reflects contemporary ideals of getting together in a positive way.

I'm not sure as I oversee disc golf course
developments nationally from my location
in Minnesota
None known
138
Timestamp Applicant Name: Applicant Phone Number: Applicant Email: Proposed Facility Name: Reason for the suggested name:

How does this name align with the cultural,
historical, or geographical significance of Shasta
Lake?
How does this name reflect
community values and identity?
Does this name have broad community support?
If so, please provide details (e.g., petitions, letters of support, endorsements):

Are there any potential conflicts or
concerns with this name? If so,
please explain:

If proposing to name the disc golf course after an
individual, please include the name of the individual
and their contribution to the community:
2026/04/10
12:36:43 PM
MDT
Jan Smutz (530)227-0452 [email protected] Summit City Disc Golf Course The course is located in the area formerly known as
Summit City. It fits with the terrain of the course. Most of the disc golf courses in the area are named for their location, which makes it easy for people to associate
the course with the location.

As stated above, it reaches back to a time, not so
long ago, that many of the current residents of the
area remember well, including myself. I think it
would be very much appreciated by the adjoining
community.

See above.

I have not advertised it, but I will do that and
provide some additional feedback before April
30th.

None that I am aware of. N/A
2026/04/10
12:51:58 PM
MDT
Julie Sisco 530-356-6602 [email protected] Boomtown Ascend Disc Golf Park That area is known for the Boomtown BMX Track. Its
the Boomtown area. Ascend refers to moving UP!! I love
the terrain its on. Seeing it turned i to something fun and positive, is moving UP!!
Our area was known as Boomtown.

Boomtown Ascend is moving up
in the world and becoming a
place people want to be.

Just me. None that i know of.
2026/04/10
12:53:22 PM
MDT
Tessa Garrett 5303564226 [email protected] Summit City Disc Golf Itâ€™s historical to the area Itâ€™s the original town name It keeps the namesake of the town Idk No
2026/04/10
1:11:32 PM
MDT
Brian Hargrave 5209538988 [email protected] Summitâ€™s Edge Disc Golf Course We believe the name Summitâ€™s Edge Disc Golf
Course is particularly fitting for two key reasons. First, the areaâ€™s rich history. The courseâ€™s location
being in the previously named Summit City, it provides
a meaningful connection to the communtyâ€™s past.

Second, the courseâ€™s terrain features multiple
prominent â€œsummits,â€ one of which is poised to
become the signature hole, adding a distinctive and
memorable element to the courseâ€™s desig
The name Summitâ€™s Edge is in reference to
both the history, and topography of the course.

Located in what was Summit City it shared that
historical significance and those familiar with the
property are aware of the siteâ€™s elevation
change which is part of what makes this course
great!
We believe a course of this
Caliber deserves a name with the
intrigue to get the blood flowing.

Summitâ€™s Edge is a name that
you could create a brand around
and have an identity of its own.

Yes! We have multiple signatures from people
within the local community and within the disc
golf community.

Iâ€™ve done extensive research
and there are no current courses
that share this name.
2026/04/10
1:24:02 PM
MDT
Adam Carlile 5308068635 [email protected] The Dam course or The Big Dam course Shasta Dam. Shasta dam up the road Shasta dam Iâ€™d say we all love and need the Shasta dam I donâ€™t think so 2026/04/10
1:27:06 PM
MDT
Tamara Bos (530) 515-6662 [email protected] SL Sky Blue Disc You have beautiful skies up in Shasta Lake. Shasta Lake is the entrance to the mountains, has the most beautiful skies!
The old addage is â€œSkyâ€™s
the limitâ€, Shasta Lake has over
come obstacles to be known as
a place to go, and enjoy, life.

Have not asked for any support. No, there are not.
2026/04/10
2:38:41 PM
MDT
Summer 5303561301 [email protected] The spillway fairways The dam spillway. The dam The town was build around the dam No No
2026/04/10
2:57:12 PM
MDT
John Moad 5302475025 [email protected] "BOOM"TOWN!
Golfer say boom on nice shots. Plus this history behind the name to the local area. Im also a 20 year disc golfer local to the area.

Boomtown! Hidtory Yes check northen flights fb page No N/A 2026/04/10
5:05:17 PM
MDT
Samantha Bianchini 916-605-9038 [email protected] m
Hargrave Disc Golf Course
Rick and Brian Hargrave are incredibly active members
of the Shasta Lake community, and a significant portion of their volunteer time includes teaching Shasta Lake
youth about disc golf. They volunteer at schools in our city to create teams and get kids active and interested in sport and nature!
Recognizing and honoring two community
members who have been actively involved in the
disc golf community in Shasta Lake City
Recognizing volunteer leadership
within the City of Shasta Lake
Unknown. I would be happy to find some; I know
some community members who would support
it.

Unknown Rick and Brian Hargrave. Please see above. Iâ€™d be happy to elaborate if needed!
2026/04/10
7:25:17 PM
MDT
Tyler Pershall 5306056510 [email protected] Ospreyâ€™s reach I grew up in Chester Lake and I remember seeing ospreyâ€™s flying through the air Razor iconic to Shasta Lakes Lake Shores It will bring more people out to
see ospreys and possibly want to
learn more
I donâ€™t know No
2026/04/10
7:36:19 PM
MDT
Ollie Huffman 5309214787 [email protected] Three Shastas Disc Golf Course I think the course's proximity to the three Shastas
overlook is a great reason for the name. I also think that tying the course in to another local landmark is a great way to increase tourism.

Less than 3 miles up the road is the famous three
Shastas overlook, where you get a fantastic view
(on a clear day) of Mt. Shasta, Shasta Dam, and
Shasta Lake.

It ties in to another local
attraction. Not as of yet No.
2026/04/10
7:52:42 PM
MDT
Danielle Hackworth 5302271317 [email protected] Hargraves Hallow disc golf course Rick and Brian Hargrave worked hard on this project
and pour their heart and soul into so many other
projects in I the Damboree
The Hargrave family is a respected well know
family in the community since at least the 70s and
have own multiple businesses and served the
community for decades
Honoring our amazing
volunteers No No Rick and Brian Hargrave. Damboree, City of Shasta Lake extraordinaires!
2026/04/10
8:32:57 PM
MDT
Tena Eisenbeisz 530-339-2717 [email protected] Summitâ€™s Edge Disc Golf Course It reflects historical values and describes what it is. Since it is in the area of what used to be called(and still is called by some folks) Summit City
It aligns with the historical
significance of the area I would like to think that it would be supported. No 2026/04/10
8:39:18 PM
MDT
Robert Anderson 530 248 3974 [email protected] Three Shastas DGC Mt Shasta, Lake Shasta and Shasta Dam Mt Shasta, Lake Shasta and Shasta Dam Mt Shasta, Lake Shasta and Shasta Dam Mt Shasta, Lake Shasta and Shasta Dam No
2026/04/10
8:58:30 PM
MDT
Jay Shelton 630.691.6003 [email protected]
Boomtown disc golf course It's always been known as boomtown History This community nickname is boomtown All of Shasta county disc golfers. Northern flights disc golf club, Shasta series,and Blue collar disc golf league of Redding No 2026/04/10
11:32:23 PM
MDT
Michael Milligan 530-440-9258 [email protected] Sleezers summit DGC I feel it perfectly blends the original settler (George M.

Sleezer) with the neighborhood identity (Summit City). It sounds natural, historic and has a local feel.
"Sleezerâ€™s Summit" is arguably the most
"authentic" name you could pick because it bridges
the three distinct eras of that specific piece of
land: the pioneer era, the construction era, and the
modern community. Here is the breakdown of why
that name carries so much weight for a course in
that exact spot: ## 1. It honors the "First Resident"
(Historical) Before there was a dam, a school, or a
city, there was George M. Sleezer. By using his
name, you aren't just naming a course; youâ€™re
marking a "Point of Origin." The Connection: Most
people know about the dam, but few know about
the Civil War veteran who homesteaded that dirt
when it was just brush and oak trees. It gives the
course a "legacy" feel, as if the land is reclaiming
its 19th-century roots. #2. It defines the "High
Ground" (Geographical) The word "Summit" is the
geographical DNA of that neighborhood. The
Landscape: As the name "Summit City" suggests,
that area sits on the ridge overlooking the
Sacramento River canyon (where the dam now
sits). The Playability: In disc golf, a "Summit"
implies elevation changesâ€”uphill grinds and
downhill bombs. It tells players exactly what to
expect from the terrain: youâ€™re playing on the
literal high point of the city's history. #3 It links to the "Toyon School" Miracle The Sleezer homestead
wasn't just "nearby"â€”it was the exact foundation
for the original Toyon School. * Community Spirit:

That specific piece of land represents the moment
the "boomtown" became a "hometown." When the
workers built that school on Sleezerâ€™s old
property in three weeks, they turned a temporary
The name Sleezerâ€™s Summit
reflects the communityâ€™s
values because it captures the
"get it done" spirit that defines
the City of Shasta Lake. This isn't
just a town that happened; itâ€™s
a town that was built by hand
during a crisis (the Great
Depression). Here is how that
specific name taps into the local
identity: ## 1. The Spirit of
"Volunteerism" The history of
this land is defined by people
showing up to build something
for the common good. * The
Value: In 1938, the community
built the Toyon School on
Sleezer's land in just three
weeks. * The Connection:

Placing a disc golf course there
todayâ€”likely through local
effort and city
partnershipâ€”continues that
tradition of community-built
spaces. The name "Sleezerâ€™s
Summit" honors the person who
provided the "ground" for the
community to grow. ## 2.

Resilience and "Pioneer" Roots
Shasta Lake residents often take
pride in being a bit more rugged
and independent than their
neighbors in larger cities. * The
No
I haven't heard any and I've
mentioned it to quiet a few local
disc golfers
George M. Sleezer
Georges contribution to the community was
providing the literal and symbolic foundation for the
region's development By building his home and
establishing a homestead near what became
Summit City, he helped transition the area from a
wild frontier into a place where families could
eventually settle.
2026/04/11
11:07:54 AM
MDT
Joshua Grigsby 256-595-0578 [email protected] Boomtown Hills DGC It gives homage to the original town name and highlights the eleveation of the course
It gives homage to the original town name and
highlights the eleveation of the course
It would be fitting and it has an
elevated feel to the name No N/a
139
2026/04/11
11:11:28 AM
MDT
Joshua Woodworth 530-604-7930 [email protected] Frizz-Be Park Its a frisby park! Its next to bizz johnson park. Its name is meaningful and relevant to its purpose. No. No. No.
2026/04/11
12:18:52 PM
MDT
Nona 3109377371 [email protected] The Dam Disco Incorporates both the "Dam" street name and the disc golf activity The dam is part of Shasta Lake
Discourse are known as fun,
activities, and this golf course
will be the same
N/a Some people may object and think
that we mean a different dam
2026/04/11
12:58:16 PM
MDT
Christopher Carr 530 232 7744 [email protected] Boomtown It's a good name Synonymous with the area ITS Recognizable Yes Should not be 2026/04/12
12:29:56 PM
MDT
Terry Lynn 530 440-5669 [email protected] Pegasus - Disc Golf Flying Discs - Flying Horse We are always going up! We always "Rise Above" I hope so! No! None! 2026/04/12
12:41:36 PM
MDT
Dennis Daniel 530-605-9453 [email protected] Toyon Disc Golf of Shasta Lake Ties to the history of the city, unique name Yes History Not sure Not that I know of 2026/04/13
11:32:17 AM
MDT
Chuck Kennedy 651-226-5512 [email protected] DG Vibing at Shasta Lake Connects disc golf (DG) with the contemporary idea of vibing together
Ideal disc golf course names connect the course
name with the location so players know where it is
Already mentioned that Vibing
reflects contemporary ideals of
getting together in a positive
way.

I'm not sure as I oversee disc golf course
developments nationally from my location in
Minnesota
None known
2026/04/15
12:19:06 PM
MDT
Brendan Finn 5305199880 [email protected] Winnemem Park Tribute to the original inhabitants of the region It showcases the original native peoples presence
in the area and helps to create a tie between
people and the natural land.

It reflects the values of
respecting native peoples and
bridging the gap in cultures
through sport and appreciation
of the natural world
No The Wintu people would have to
approve of the use of this name.
2026/04/15
1:45:58 PM
MDT
Rick Roberts 530 410-9968 [email protected] Sky Summit Mtn course Summit City reference Sky is the limit I've been active in Redding area disc golf for over 25 years. None
140
City of Shasta Lake Facility Naming Policy
Background
The purpose of this policy is to establish guidelines for the naming of City facilities, including, but not limited to: parks, recreational areas, recreation facilities, and City buildings to ensure consistency and reflection of the community’s values and heritage.

Objectives

1. To provide a clear and consistent framework for the naming process.

2. To ensure that names reflect the cultural, historical, and geographical significance of the City.

3. To encourage community involvement in the naming process.

4. To honor individuals, organizations, and events that have made significant contributions to the community.

5. To select names that are appropriate to the location and remain relevant as the community grows and changes.

Guidelines for Naming

1. Cultural and Historical Significance: Names should reflect the cultural, historical, or geographical significance of the area that will endure for future generations.

2. Community Values: Names should align with the values and identity of the City of Shasta Lake and its residents.

3. Positive Imagery: Evoke a strong positive image.

4. Respect: Names should be respectful of the diverse community and its community members.

5. Community Support: Have broad public support.

6. Avoidance of Duplication: Names should be unique within the City to avoid confusion.

7. The City reserves the right to change the name to maintain consistency with these policies.

Categories for Naming

1. Geographical Features: Names that reflect the natural features of the area, such as mountains, lakes, rivers, and other prominent landmarks.

2. Historical Significance: Names that honor the historical events, people, or periods significant to the City of Shasta Lake.
141

3. Extraordinary Individuals: Names that honor an outstanding individual are allowed posthumously (at least three years from the date of passing) and where that person’s significance and good reputation have been reviewed and acknowledged in the City’s history. Naming facilities after individuals is not recommended, but will be given consideration when:
a. The person was exceptionally dedicated or demonstrated excellence in service in ways that made a significant contribution to the land, community, or City;
b. The person volunteered and gave extraordinary help or care to individuals, families, groups, or support to the community for a minimum of 10 years; or c. The person risked his or her life to save or protect others.

4. Naming for Donations: A significant donation made to the City of Shasta Lake that adds considerable value to the City may be recognized through naming. As a guideline, the threshold for consideration will include one or more of the following:
a. Land for the majority of the facility was deeded to the City by the donor without fee credit.
b. Contribution of a minimum of 60% of the capital construction costs associated with developing the facility
c. Provision of a minimum 20-year endowment for the continued maintenance, operation, and/or programming of the facility asset.

Naming facilities with a company name is prohibited. Corporate logos, insignias, brands, or direct advertising text shall not be used in the City of Shasta Lake naming.

Corporate sponsorship and naming rights may be negotiated outside of this policy.

5. Renaming: The renaming of City facilities is discouraged. Name changes will be subject to an examination that includes consideration of the original justification for the current name, the value of prior contributors, and the rationale for changing the name.

Naming Conventions

1. Names that are currently in use in the City of Shasta Lake will not be considered.

2. Names that are discriminatory or derogatory will not be considered.

3. City Council has the authority to make exceptions to the Naming Policy under special circumstances.
142
Naming Application Process
Any person, group, or organization may submit an application to name or rename a City facility. The application should be submitted to the City Clerk, or designee.

Applications should contain the following minimum information:

1. Name of applicant

2. Proposed name for the City facility

3. Background/support for the proposed name

4. Demonstrated community support for the proposed name

5. Identification of interested/impacted stakeholders

6. Description/map showing the location

7. If proposing to name a facility within a larger City-owned area, include a description/map showing the location of the facility within the larger area

8. If proposing to name an asset after an outstanding person, documentation of that person’s contribution to the City

9. If proposing to rename a facility, the application should also include background information on the current name and rationale for requesting a new name.

Naming Approval Process
Upon receipt of a naming application, City staff will review for compliance with the Facility Naming Policy.

City staff may suggest modification of the name proposed by an applicant, with the agreement of the applicant.

Applications that comply with the Facility Naming Policy will be brought to any appropriate advisory commissions/committees (i.e. Parks and Recreation Advisory Commission, Planning Commission, Public Facilities Commission) for public review and discussion.

The Commission(s) will forward recommended applications to the City Council for further review at a public meeting.

City Council has the final authority to approve/deny naming applications. 143
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Report and Recommendations 8.3
Reviewed and Approved
City Manager

AGENDA ITEM
City Council
TO: Mayor and City Council Members
FROM: Charity Tatlow, City Clerk
DATE: July 16, 2026
SUBJECT: MAYOR'S APPOINTMENT TO THE COMMISSION ON AGING FILE NO.: C-080-092-500

RECOMMENDATION
Staff recommends that the City Council fill the vacancy for the Commission on Aging.

BACKGROUND
In December of each year, the Mayor makes annual appointments to various Standing Committees, Commissions, and Boards. The vacancy for the Commission on Aging as been posted and published since the seat was vacated by Kristie Mathews.

Councilwoman Toni Coates has volunteered to serve on the Commission as the Shasta Lake representative.

FISCAL IMPACTS
None

ATTACHMENTS
Current appointments list

DISTRIBUTION
City Council
145
Board/Committee/Commission 2026 Representatives
Mayor’s Select Committee JONES
Finance Committee JONES AND WATKINS
Check Register Review JONES AND COATES
Electric Utility Committee MORGAN AND WATKINS
Public Facilities Committee JONES AND WATKINS
Safety & Emergency Preparedness Committee WATKINS AND RINGWELSKI Economic Development Corporation SUTHERLAND

LAFCO MORGAN
Mosquito & Vector Control MORNINGSTAR
Redding Area Bus Authority JONES ALT. RINGWELSKI
Shasta Co. Commission on Aging
Shasta Co. Dept. of Housing & Community Action COATES
Shasta County Successor Agency Oversight Board LUGO
Shasta Regional Transportation Agency WATKINS ALT. RINGWELSKI Youth Options JONES ALT. COATES
AT HOME Committee COATES AND RINGWELSKI
Superior CA Economic Development District LUGO
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Report and Recommendations 9.1
Reviewed and Approved

_________________________
City Manager

PUBLIC NOTIFICATION AND RISK REDUCTION PLAN
FILE NO.:

RECOMMENDATION
Receive and file the informational update.

BACKGROUND
The City recently received correspondence from Sean Ewing, Director of Resource Management for Shasta County, regarding a Risk Reduction Plan submitted by CalPortland that is currently under review through the County's permitting and regulatory process.

According to the information provided by the County, CalPortland distributed public notices on May 15, 2026, to property owners located within the project notification area. The County indicated that no properties within the City of Shasta Lake were included in the notification area and, therefore, no notices were mailed to City residents.

The County also provided the City with a copy of the Risk Reduction Plan for informational purposes only.

Questions regarding the Risk Reduction Plan, public notification process, project review, or related technical matters should be directed to the Shasta County Department of Resource Management, which serves as the lead agency for the review of the project.

FISCAL IMPACTS
There is no fiscal impact associated with this informational item. 147

ATTACHMENTS
CalPortland Risk Reduction Plan

DISTRIBUTION
City Council
148

RISK REDUCTION AUDIT AND PLAN
Senate Bill 1731 &
Assembly Bill 2588 California Air Toxics “Hot Spots”
Information and Assessment Act of 1987
CalPortland Company
Redding Cement Plant
Redding, CA
Prepared By:

Trinity Consultants
20 Corporate Park, Suite 285
Irvine, CA 92606
April 2026
Project No. 250501.0198
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TABLE OF CONTENTS

1. EXECUTIVE SUMMARY 1-1

1.1 Project Overview ........................................................................................................ 1-1

1.2 Facility Risk Characterization ..................................................................................... 1-1

1.3 Summary of Results.................................................................................................... 1-3

1.3.1 Comparison of Health Risk Results ............................................................................. 1-4

1.3.2 Maximum Carcinogenic Risks ..................................................................................... 1-4

1.3.3 Chronic Noncarcinogenic Health Hazards .................................................................... 1-5

1.3.4 Chronic 8-hour Noncarcinogenic Health Hazards ......................................................... 1-6

1.3.5 Acute Noncarcinogenic Health Hazards ....................................................................... 1-6

2. INTRODUCTION 2-1

2.1 Applicable Requirements ............................................................................................ 2-1

2.2 Background ................................................................................................................. 2-1

2.3 Risk Reduction Plan Elements .................................................................................... 2-1

2.4 Report Format............................................................................................................. 2-3

3. RISK REDUCTION MEASURES 3-1

3.1 Facility Identification.................................................................................................. 3-1

3.2 Baseline Health Risks.................................................................................................. 3-1

3.3 Source Identification .................................................................................................. 3-1

3.4 Risk Reduction Evaluation .......................................................................................... 3-2

3.4.1 Baghouses ............................................................................................................... 3-2

3.4.2 Gasoline Storage Tanks ............................................................................................. 3-4

3.4.3 Road Dust ................................................................................................................ 3-4

3.5 Schedule ..................................................................................................................... 3-5

3.6 Time Extension ........................................................................................................... 3-6

3.7 Residual Risk Estimate................................................................................................ 3-6

4. HAZARD IDENTIFICATION 4-1

4.1 Updated Emissions Inventory..................................................................................... 4-1

4.1.1 Baghouses ............................................................................................................... 4-1

4.1.2 Gasoline Storage Tanks ............................................................................................. 4-1

4.1.3 Facility Roadways ..................................................................................................... 4-2

4.2 Pollutants of Interest.................................................................................................. 4-3

5. EXPOSURE ASSESSMENT 5-1

5.1 Air Dispersion Modeling .............................................................................................. 5-1

5.1.1 Model Options .......................................................................................................... 5-1

5.1.2 Source Parameters .................................................................................................... 5-2

5.1.3 Receptors ................................................................................................................. 5-2

5.1.4 Building Downwash ................................................................................................... 5-3

5.1.5 Meteorological and Elevation Data.............................................................................. 5-3

5.2 Assessment of Chemical Exposure.............................................................................. 5-3

5.2.1 HARP2 Analysis ........................................................................................................ 5-4

5.2.2 Exposure Pathways ................................................................................................... 5-4

5.2.3 Carcinogenic Health Impacts ..................................................................................... 5-5

5.2.4 Noncarcinogenic Health Impacts ................................................................................ 5-5 150
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6. RISK CHARACTERIZATION 6-1

6.1 Dose-Response and Dose Estimates ........................................................................... 6-1

6.2 Zone of Impact............................................................................................................ 6-1

6.3 Carcinogenic Health Effects ........................................................................................ 6-1

6.3.1 Point of Maximum Impact (PMI) ................................................................................ 6-1

6.3.2 Maximum Exposed Individual Resident (MEIR) ............................................................ 6-2

6.3.3 Maximum Exposed Individual Worker (MEIW) ............................................................. 6-2

6.3.4 Sensitive Receptors ................................................................................................... 6-2

6.3.5 Population Cancer Burden ......................................................................................... 6-2

6.4 Noncancer Chronic Health Effects............................................................................... 6-3

6.4.1 Point of Maximum Impact (PMI) ................................................................................ 6-3

6.4.2 Maximum Exposed Individual Resident (MEIR) ............................................................ 6-3

6.4.3 Maximum Exposed Individual Worker (MEIW) ............................................................. 6-3

6.4.4 Sensitive Receptors ................................................................................................... 6-4

6.5 Noncancer Chronic 8-Hour Health Effects .................................................................. 6-4

6.5.1 Maximum Exposed Individual Worker (MEIW) ............................................................. 6-4

6.6 Noncancer Acute Health Effects.................................................................................. 6-4

6.6.1 Point of Maximum Impact (PMI) ................................................................................ 6-4

6.6.2 Maximum Exposed Individual Resident (MEIR) ............................................................ 6-4

6.6.3 Maximum Exposed Individual Worker (MEIW) ............................................................. 6-5

6.6.4 Sensitive Receptors ................................................................................................... 6-5

7. CERTIFICATION 7-1

8. REFERENCES 8-1
APPENDIX A. FIGURES A-1
APPENDIX B. TABLES B-1
APPENDIX C. EMISSIONS CALCULATIONS C-1
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LIST OF TABLES
Table 1-1. Summary of 2020 HRA Drivers 1-1
Table 1-2. Proposed Risk Reduction Measures 1-3
Table 1-3. Summary of RRP HRA Results 1-3
Table 1-4. 2020 HRA and RRP HRA Health Risk Comparison 1-4 Table 2-1. RRP Plan Elements 2-2
Table 3-1. RRP Emission Sources 3-1
Table 3-2. Proposed New Finish Mill Baghouses 3-2
Table 3-3. Proposed Baghouse Upgrades 3-3
Table 3-4. RRP Implementation Schedule 3-5
Table 5-1. HARP 2.0 Risk Scenarios Evaluated 5-4
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ABBREVIATIONS AND DEFINITIONS
Abbreviations
AB 2588 Air Toxics "Hot Spots" Information and Assessment Act ADMRT Air Dispersion Modeling Risk Tool
AERMOD American Meteorological Society Regulatory Model AER Annual Emissions Report
AMS American Meteorological Society
BPIP-PRIME Building Profile Input Program PRIME
CARB California Air Resources Board
CAS Chemical Abstract System
CHSC California Health and Safety Code
HARP2 Hot Spots Analysis and Reporting Program
HI Hazard Index
HRA Health Risk Assessment
MEIR Maximum Exposed Individual Resident
MEIW Maximum Exposed Individual Worker
MICR Maximum Individual Cancer Risk
OEHHA Office of Environmental Health Hazard Assessment
PMI Point of Maximum Impact
REL Reference Exposure Level
RRP Risk Reduction Plan
SCAQMD Shasta County Air Quality Management District
South Coast AQMD South Coast Air Quality Management District USEPA United States Environmental Protection Agency
USGS United States Geological Survey
UTM Universal Transverse Mercator
ZOI Zone of Impact
Key Definitions
► Action Risk Level - An MICR of ten in one million (10 x 10-6), a total acute hazard index (HIA) of 1.0, or chronic hazard index (HIC) of 1.0 for any target organ system at any receptor location. ► Acute Health Impacts - An effect caused by initial exposure of a hazardous chemical on the body. The effects are generally severe but are often reversible after exposure stops. ► Cancer Health Impacts - An increase in the likelihood for cancer in the exposed individual, caused by exposure to a carcinogenic substance.
► Cancer Burden - Cancer burden is the estimated number of theoretical c ► Chronic Health Impacts - An effect caused by prolonged or repeated exposures over time. Symptoms may not be apparent immediately but develop over time and are often irreversible. ► Chronic 8-hour Health Impacts - An effect caused by exposures that occur on a recurrent basis, but only during a portion of the day.
► Dose-Response Assessment - The process of characterizing the relationship between the exposure to an agent and the incidence of an adverse health effect in exposed populations. ► MEI - Maximum exposed individual (theoretical)
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► MEIR - Maximum exposed individual resident (actual)
► MEIW - Maximum exposed individual worker (actual)
► Multi-pathway Substances - A substance or chemical that once airborne from an emission source can, under environmental conditions, be taken into a human receptor by multiple exposure routes, such as inhalation, skin contact with contaminated surfaces, ingestion of soil contaminated by the emission, etc. ► PMI - Off-site point of maximum impact. A location, with or without people currently present, at which the total cancer risk, or the total noncancer risk, has the highest numerical value. ► Reference Exposure Level - The REL is an exposure level at or below which no noncancer adverse health effect is anticipated to occur in a human population, including sensitive subpopulations, exposed for a specific duration. One-hour acute RELs are designed to be protective for infrequent one-hour maximum exposures. Eight-hour RELs are designed to be protective for repeated 8-hour exposures.

Chronic RELs are designed to be protective for continuous long-term exposures. RELs are used to evaluate toxicity endpoints other than cancer. RELs are expressed in units of µg/m3 for inhalation exposures and of mg/kg-day for non-inhalation exposures.
► Risk - The estimated probability of adverse effects to human health, in this instance from the exposure to environmental hazards.
► Sensitive Receptor - A location where the human occupants are considered to be more sensitive to air toxic pollutants than the “average” population, such as, K-12 schools, hospitals, nursing/convalescent homes, daycares, and senior centers.
► ZOI - The area in the vicinity of the facility in which an individual is exposed to greater than or equal to one in a million cancer risk (1.0 x 10-6) or greater than or equal to one half (0.5) noncancer hazard. 154
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1. EXECUTIVE SUMMARY
On behalf of CalPortland Company (CalPortland), Trinity Consultants, Inc. (Trinity) has prepared this Risk Reduction Audit and Plan (RRP) for CalPortland’s Redding facility located at 15390 Wonderland Boulevard in the city of Redding, California (the Facility). In accordance with Senate Bill (SB) 1731 and Assembly Bill (AB) 2588 Air Toxics “Hot Spots” Program, CalPortland has prepared this RRP in response to the notice from Shasta County Air Quality Management District (SCAQMD) dated September 11, 2025.

1.1 Project Overview
On June 9, 2022, SCAQMD required a Health Risk Assessment (HRA) following reprioritization of CalPortland’s Redding Facility as a “High Level” facility based on reported emissions from calendar year 2020. Following review from the Office of Environmental Health Hazards Assessment (OEHHA) on June 2, 2025, SCAQMD approved the Facility’s 2020 HRA on September 11, 2025. As part of this approval, SCAQMD mandated that CalPortland conduct an airborne toxic risk reduction audit and develop a plan to implement airborne toxic risk reduction measures to reduce emissions from the Facility to a level below significant risk level (i.e., cancer risk less than 10.0, chronic hazard index less than 1.0, acute hazard index less than 1.0) in accordance with the California Health and Safety Code (CHSC) Section 4391. In April 2026, CalPortland resubmitted the 2020 HRA to rectify errors caused by limitations in the HARP software as well as update the stockpile calculation methods. This resubmittal did not change the need to conduct an airborne toxic risk reduction audit or to develop a plan to implement risk reduction measures. Therefore, CalPortland is submitting this RRP to meet State and SCAQMD requirements, as well as reduce Facility health risk levels.

1.2 Facility Risk Characterization
Per the 2020 HRA, the Facility’s risk prioritization is as follows:
► Maximum estimated cancer risk is 24.35 per million,
► Maximum chronic hazard index of 0.32, and
► Maximum acute hazard index of 1.88.

The results of the 2020 HRA indicate CalPortland is above SCAQMD’s prioritization thresholds for cancer and acute risk. Therefore, this RRP contains a complete Facility risk characterization including identifying risk drivers from the 2020 HRA and proposing risk reduction measures for the Facility to below SCAQMD’s prioritization thresholds. Table 1-1 below summarizes the top risk drivers for cancer, chronic, and acute risk from the 2020 HRA.

Table 1-1. Summary of 2020 HRA Drivers
Risk Receptor Type Receptor
Number UTME (m) UTMN (m) Driving Pollutant
Driving
Source
Cancer
PMI (Point of
Maximum Impact 530 557254.9 4509428.3 Cr(VI) Baghouse J-162 MEIR (Residence) 26 557214.4 4509122.3 Cr(VI) Baghouse
J-162
MEIW (Worker) 26 557214.4 4509122.3 Cr(VI) Baghouse
J-162
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Risk Receptor Type Receptor
Number UTME (m) UTMN (m) Driving Pollutant
Driving
Source
Noncancer
Chronic
PMI 530 557254.9 4509428.3 Arsenic Baghouse
G-465
MEIR 26 557214.4 4509122.3 Arsenic Baghouse
G-465
MEIW 26 557214.4 4509122.3 Nickel Baghouse
G-465
Noncancer
8-hr Chronic MEIW 26 557214.4 4509122.3 Manganese BaghouseG-465 Noncancer
Acute
PMI 602 557454.9 4509728.3 Benzene Storage
Tank K-42
MEIR 6 557504.8 4509852.0 Benzene Storage
Tank K-42
MEIW 4 557591.4 4509817.8 Benzene Storage
Tank K-42
Additionally, this RRP includes an updated HRA based on the proposed risk reduction measures and associated revised emissions data for calendar year 2020 (RRP HRA). The RRP HRA utilized the Hot Spots Analysis and Reporting Program Version 2 (HARP2) and air dispersion modeling output from the most recent version of U.S. EPA’s AERMOD software. The results obtained from HARP2 provide the necessary information to generate the zones of impact and identify the potentially exposed populations. In addition, potential health effects were evaluated for the maximum exposed individual resident (MEIR) and the maximum exposed individual worker (MEIW) for both noncancer and carcinogenic health impacts.

At the Facility, the following process areas are present, each with several emission units: quarries and crushing, raw milling and kiln, finish grinding, and storage and shipping. Limestone, shale, and other raw materials are sent from the quarry to be crushed into smaller pieces for processing. The raw material is milled and preheated in preparation for the kiln. In the kiln, materials such as coal, coke, and other fuels are added for combustion. The milled blend is exposed to extreme temperatures in the kiln, transforming into a mineral compound called clinker. Clinker is sent to the contiguous satellite cooler tubes to quench before finish milling.

With the addition of gypsum and other additives, finish mills grind clinker into portland cement. Products are stored and then shipped from the Facility. The Facility also operates various ancillary emissions units, including emergency generators and insignificant activities. Dust collectors are implemented throughout the manufacturing process to collect dust for reintroduction into the production stream and minimization of particulate emissions from point sources.

Based on the 2020 HRA submitted by Lehigh Southwest Cement Company and approved by the SCAQMD, emissions of hexavalent chromium from baghouses and benzene from gasoline storage tanks were the drivers for cancer and acute, respectively.1 For purposes of the RRP HRA, emissions data was based on the 2020 TEIR submitted by CalPortland in April 2026. Risk reduction measures were evaluated and selected for the baghouses, facility roadways, and storage tanks. To achieve the stated risk reduction goals, CalPortland proposes seven risk reduction measures. Table 1-2 below lists the proposed risk reduction measures and the existing process units affected.
1 The Facility was acquired by CalPortland Company in 2022. 156
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Table 1-2. Proposed Risk Reduction Measures
Risk
Reduction
Measure
Description Process Units Affected
1 Replace Finish Mills A, B, and C with a new finish mill EA-87, EA-92/93, EB-142, E-30, E34/65, E-121, E-230, E-231
2 Reduce maximum outlet grain loading on baghouses
through replacing baghouse bags with a new material
J-162, J-168, J-174, J-321, J-345,
G-206, G-418, G-451, S-210, S-253
3 Remove gasoline storage tank K-44 from service K-44
4 Add a vapor recovery unit to gasoline storage tank K-42 K-42 5 Increase control efficiency to 89% on unpaved roads
through additional watering and adding vehicle speed
limitations on quarry access roads
Limestone Quarry and Shale
Quarry Roadways
6 Increase control efficiency to 83% on paved external
roads through water flushing four times a day, followed by sweeping
Paved External Roadways
7 Increase control efficiency to 62% on paved internal
roads through water flushing three times a day Paved Internal Roadways The Facility risk characterization and post-implementation health risk assessment contained in this RRP applied all seven risk reduction measures.

1.3 Summary of Results
Based on the Facility risk characterization and proposed risk reduction measures, CalPortland is anticipated to reduce its cancer and acute health risk impacts to less than SCAQMD’s risk prioritization thresholds. Table 1-3 provides a summary of all health risk impacts from this RRP HRA implementing the proposed risk reduction measures. Note that risk reduction measures were not required for chronic health risk impacts; however, the RRP HRA indicates that these chronic health risk impacts will remain well below the applicable chronic hazard index threshold of 1.0, and will also decrease due to the proposed risk reduction measures.

Table 1-3. Summary of RRP HRA Results
Receptor
Description
Cancer
Risk
(in a
million)
Cancer
Receptor
ID
Chronica
Hazard
Index
Chronic
Receptor
ID
Chronic
8-hrb
Hazard
Index
Chronic
8-hr
Receptor
ID
Acutec
Hazard
Index
Acute
Receptor
ID
PMI (Point of
Maximum Impact) 23.35 530 0.30 888 - - 0.40 1054
MEIR (Residence) 9.92 26 0.14 26 - - 0.29 6
MEIW (Worker) 0.83 26 0.11 26 0.02 26 0.25 4
a. Chronic hazard index for the PMI is presented for the central nervous system, because the central nervous system had the maximum chronic hazard index for the PMI. Chronic hazard index for the MEIR and MEIW is presented for 157
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the respiratory system, because the respiratory system had the maximum chronic hazard index for the MEIR and MEIW.
b. Chronic 8-hr hazard index is presented for the central nervous system, because the central nervous system had the maximum chronic 8-hr hazard index.
c. Acute hazard index is presented for the immune system, because the immune system had the maximum acute hazard index.

Summary discussions of the key health risk impacts are provided below, including, Point of Maximum Impact (PMI), Maximum Exposed Individual Residence (MEIR) and Maximum Exposed Individual Worker (MEIW).

1.3.1 Comparison of Health Risk Results
Table 1-4 compares the estimated health risk from the proposed risk reduction measures relative to the 2020 HRA, which was used as the baseline for comparison purposes. The submitted 2020 HRA indicated the cancer MEIR was 24.35 in a million, the acute noncancer risk MEIR was a hazard index of 1.88, and the acute noncancer risk MEIW was a hazard index of 1.13.

Table 1-4. 2020 HRA and RRP HRA Health Risk Comparison
Risk
/Receptor
Type
2020 HRA RRP HRA Risk
Reduction
(%) Risk Receptor X Y Risk Receptor X Y
Cancer
PMI 59.67 530 557255 4509428 23.35 530 557255 4509428 61% MEIR 24.35 26 557214 4509122 9.92 26 557214 4509122 59% MEIW 2.07 26 557214 4509122 0.83 26 557214 4509122 60%
Chronic
PMI 0.74 530 557255 4509428 0.30 888 557255 4509428 59% MEIR 0.32 26 557214 4509122 0.14 26 557214 4509122 58%
MEIW 0.26 26 557214 4509122 0.11 26 557214 4509122 59%
8-Hour
Chronic MEIW 0.04 26 557214 4509122 0.02 26 557214 4509122 56% Acute
PMI 2.32 602 557455 4509728 0.40 1054 558855 4511428 83% MEIR 1.88 6 557505 4509852 0.29 6 557505 4509852 84%
MEIW 1.13 4 557591 4509818 0.25 4 557591 4509818 78%
As shown by Table 1-3 and Table 1-4, this RRP HRA indicates the cancer health risk for the MEIR, the acute noncancer health risk for the MEIR, and the acute noncancer health risk for the MEIW have significantly decreased as a result of the proposed risk reduction measures. The cancer health risk for the MEIR due to the proposed risk reduction measure is 9.92 in a million. The acute noncancer health risk for the MEIR due to the proposed risk reduction measure is an acute hazard index of 0.29. The acute noncancer health risk for the MEIW due to the proposed risk reduction measure is an acute hazard index of 0.25. These updated health risk estimates are based on the 2015 OEHHA Guidelines2 , which indicate the post-implementation chronic health risks for CalPortland are substantially lower than the 2020 HRA and below Risk Reduction thresholds.

Further details on the results of the RRP HRA are summarized below.

1.3.2 Maximum Carcinogenic Risks
Table 1-3 summarizes the key results of the RRP HRA for cancer risk. Appendix A, Figures 4 and 6 identify the locations of the PMI, MEIR, and MEIW. For the MEIR and MEIW, emissions from Facility baghouses and 2 Refer to Section 8, References for applicable citations. 158
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road dust were the driving contributors to the cancer risks. After implementing the proposed risk reduction measures, the MEIR and MEIW excess cancer risk will be reduced by 59% and 60%, respectively.

Furthermore, the overall Facility cancer risk has been significantly reduced since the 2020 HRA. Key results for PMI, MEIR, and MEIW are as follows:
► PMI
• Receptor ID – #530
• UTM Coordinates – 557254.9 E, 4509428.3 N
• Location – South of the Facility along Wonderland Blvd • Cancer Risk – 2.35 x 10-05
► MEIR
• Receptor ID – #26
• UTM Coordinates – 557214.4 E, 4509122.3 N
• Location – South of the Facility, by Fawndale Rd
• Cancer Risk – 9.92 x 10-06
► MEIW
• Receptor ID – #26
• UTM Coordinates – 557214.4 E, 4509122.3 N
• Location – South of the Facility, by Fawndale Rd
• Cancer Risk – 8.35 x 10-07
Estimated cancer risks for MEIR and MEIW are both below 10 in a million, which is the Risk Reduction Audit and Plan and public notice threshold established by SCAQMD. One sensitive receptor, Receptor ID 1462, exists in the zone of impact for cancer risks. Census tracts were included in the zone of impact (ZOI), e.g., boundary in which the lifetime cancer risk is greater than 1 x 10-6.

1.3.3 Chronic Noncarcinogenic Health Hazards
Table 1-3 summarizes the results of the RRP HRA for chronic noncancer health hazards. Please note, the chronic noncancer health hazard was already below the applicable RRP and public notice threshold based on the 2020 HRA. However, risk reduction measures proposed in this RRP had a positive impact on further reducing the chronic noncancer health hazard and are presented for completeness. Appendix A, Figures 5 and 7 identify the locations of the PMI, MEIR, and MEIW. After implementing the proposed risk reduction measures, the MEIR and MEIW chronic noncarcinogenic risk will be reduced by 58% and 59%, respectively.

As such, the overall chronic health risks have decreased significantly from the 2020 HRA. ► PMI
• Receptor ID – #888
• UTM Coordinates – 558754.9 E, 4510928.3 N
• Location – Northeast of the Facility west of the quarry operations • Chronic Hazard – 0.30
► MEIR
• Receptor ID – #26
• UTM Coordinates – 557214.4 E, 4509122.3 N
• Location – South of the Facility, by Fawndale Rd
• Chronic Hazard – 0.14
► MEIW
• Receptor ID – #26
• UTM Coordinates – 557214.4 E, 4509122.3 N
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• Location – South of the Facility, by Fawndale Rd
• Chronic Hazard – 0.11
Estimated chronic hazards for the MEIR and MEIW still do not exceed the chronic hazard index of 1.0, which is the Risk Reduction Audit and Plan and public notice threshold established by SCAQMD.

1.3.4 Chronic 8-hour Noncarcinogenic Health Hazards
Table 1-3 summarizes the results of the RRP HRA for chronic 8-hour noncancer health hazards. Please note, the chronic 8-hour noncancer health hazard was already below the applicable RRP and public notice threshold based on the 2020 HRA. However, risk reduction measures proposed in this RRP had a positive impact on further reducing the chronic 8-hour noncancer health hazard and are presented for completeness. Appendix A, Figure 8 identifies the location of the MEIW. After implementing the proposed risk reduction measures, the MEIW chronic 8-hour noncarcinogenic risk will be reduced by 56%. As such, the overall chronic health risks have decreased significantly from the 2020 HRA.
► MEIW
• Receptor ID – #26
• UTM Coordinates – 557214.4 E, 4509122.3 N
• Location – South of the Facility, by Fawndale Rd
• Chronic Hazard – 0.02
Estimated 8-hour chronic hazards for the MEIW still does not exceed the 8-hour chronic hazard index of 1.0, which is the Risk Reduction Audit and Plan and public notice threshold established by SCAQMD.

1.3.5 Acute Noncarcinogenic Health Hazards
Table 1-3 summarizes the results of the RRP HRA for acute noncancer health hazards. Appendix A, Figure 9 identifies the locations of the PMI, MEIR, and MEIW. For the MEIR and MEIW, emissions from gasoline tanks are no longer the driving contributor to acute health risks. The MEIR and MEIW acute health risks are now driven by baghouse G-465, demonstrating successful reduction of the gasoline storage tank risks. After implementing the proposed risk reduction measures, the MEIR and MEIW acute noncarcinogenic risk will be reduced by 84% and 78%, respectively. The overall acute health risks have decreased significantly from the 2020 HRA.
► PMI
• Receptor ID – #1054
• UTM Coordinates – 558854.9 E, 4511428.3 N
• Location – North of the quarry operations
• Acute Hazard – 0.40
► MEIR
• Receptor ID – #6
• UTM Coordinates – 557504.8 E, 4509852.0 N
• Location – East of the Facility along Wonderland Blvd • Acute Hazard – 0.29
► MEIW
• Receptor ID – #4
• UTM Coordinates – 557591.4 E, 4509817.8 N
• Location – East of the Facility along Wonderland Blvd • Acute Hazard – 0.25
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The MEIW and MEIR do not exceed the acute hazard index of 1.0, which is the Risk Reduction Audit and Plan and public notice threshold established by SCAQMD.
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2. INTRODUCTION
In response to SCAQMD’s notice dated September 11, 2025, this Risk Reduction Plan (RRP) was prepared in accordance with SB 1731 and AB 2588 Air Toxics “Hot Spots” Program. SB 1731 requires operators of “significant risk” facilities to perform an audit to identify the source of air toxics emissions and risk and then develop and carry out a plan to reduce the emissions and risk. Similarly, AB 2588 is intended to reduce the health risk associated with emissions of toxic air contaminants from existing sources by specifying limits for maximum individual cancer risk (MICR), cancer burden, and noncancer acute and chronic hazard index (HI).

This RRP contains the required plan elements to satisfy the requirements of SCAQMD’s AB2588 Program, as described herein.

2.1 Applicable Requirements
SCAQMD’s AB2588 Program implements AB 2588 for facilities within its jurisdiction, which requires health risk assessment, public notification and risk reduction measures for facilities which exceed applicable risk levels.

SCAQMD’s AB2588 Program Annual Report identifies public notification and action risk levels for carcinogenic impacts, as well as noncancer acute and chronic hazard impacts. SCAQMD’s AB2588 Program Annual Report specifies the following key requirements:
► Public Notification Threshold – SCAQMD requires public notification to affected populations which equal or exceed the following health risk levels: MICR ≥ 10 in 1 million, HIC > 1.0, or HIA > 1.0. ► Risk Reduction Audit and Plan Threshold – SCAQMD requires an RRP for facilities that exceed the following health risk levels: MICR ≥ 10 in 1 million, HIC > 1.0, or HIA > 1.0.

2.2 Background
On June 9, 2022, SCAQMD required an HRA following reprioritization of CalPortland’s Redding Facility as a “High Level” facility based on reported emissions from calendar year 2020. Following review from OEHHA on June 2, 2025, SCAQMD approved the Facility’s 2020 HRA on September 11, 2025. As part of this approval, SCAQMD mandated that CalPortland conduct an airborne toxic risk reduction audit and develop a plan to implement airborne toxic risk reduction measures to reduce emissions from the Facility to a level below significant risk level (i.e., cancer risk less than 10.0, chronic hazard index less than 1.0, acute hazard index less than 1.0) in accordance with the CHSC Section 4391. Following OEHHA’s approval, CalPortland submitted minor updates to the 2020 HRA in April 2026. These updates were inconsequential to the SCAQMD mandates.

Therefore, CalPortland is submitting this RRP to meet State and SCAQMD requirements, as well as reduce Facility health risk levels.

2.3 Risk Reduction Plan Elements
SCAQMD does not have posted guidelines or district rules governing the preparation of an RRP. As such, CalPortland has based this RRP on CARB’s General Guidance for Preparing Risk Reduction Plans.3 Per this guidance document, the RRP must contain minimum plan elements. Table 2-1 describes the required plan elements and the associated location of this information in this RRP. 3 Ibid., footnote 1.
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Table 2-1. RRP Plan Elements
Item RRP Plan Element Report Location
1 The name and address of the facility. Required Facility identification can be found in Section 3.1 of this RRP.
2 The SIC code for the facility. Required Facility identification can be found in Section 3.1 of this RRP.
3 A source characterization including:
a. summary data from the applicable district-approved
air toxic emission inventory,
b. summary data from the related health risk
assessment, and
c. identification of the processes/emission points
contributing to risks over the significant risk level(s).

Section 1.2 and Table 1-1 show the
summary data from the district
approved air toxic emission
inventory. Table 1-1 shows the
summary from the related health risk
assessment, and Section 3.3 of this
RRP contains the emission points
contributing to risks.
4 An evaluation of the risk reduction measures to be
implemented including:
a. identification of risk reduction measure(s),
b. emission reduction potential, and
c. risk reduction potential.

Section 3.4 and Table 1-4 include
the required details on the risk
reduction measures.
5 A schedule for implementing the risk reduction measures as quickly as feasible, including:
a. dates for filing applications for permits to construct, b. dates equipment will be installed (if applicable),
c. dates process changes will be completed (if
applicable), and
d. dates for demonstrating the effectiveness of risk
reduction measures.

Section 3.5 includes the required
details on the risk reduction
measures.
6 An estimate of residual risk following implementation of the risk reduction measure(s) specified in the plan. If the significant risk level cannot be reached within the time period allowed by the district, the plan must also include the following:
a. a request to the district for an extension of time to comply,
b. an evaluation of all risk reduction measures available, c. a demonstration of technical infeasibility or
unreasonable economic burden for risk reduction
options that will not be implemented, and
d. identification of activities to identify or develop
additional risk reduction measures to enable the
operator to comply by the specified date.

Table 1-3 shows the summary from
the related health risk assessment.
7 A certification that the risk reduction plan meets all requirements. The person who makes this certification must be one of the following:
a. an engineer who is registered as a professional
engineer pursuant to Section 6762 of the Business
and Professions Code,
b. an individual who is responsible for the operations of the source,
c. an environmental assessor registered pursuant to
Section 25570.3 of the Health and Safety Code.

Section 7 includes the required
certification.
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2.4 Report Format
The report format for this RRP HRA is consistent with CARB requirements and based on guidance by the OEHHA.
► Section 1.0: Executive Summary – This section summarizes Facility information, emission sources, modeling parameters, and key findings of this HRA.
► Section 2.0: Introduction – This section discusses applicable regulatory requirements, project background, and report format.
► Section 3.0: Risk Reduction Measures – This section identifies the source(s) of risk from the Facility and potential risk reduction measure(s) evaluated to reduce risk. ► Section 4.0: Hazard Identification – This section identifies the reported substances emitted from the Facility. The substances evaluated for cancer and noncancer endpoints are identified for Appendix A-I substances.
► Section 5.0: Exposure Assessment – This section describes the estimated emissions for the chemicals of interest, the air dispersion modeling for determining airborne concentrations, the exposure pathways evaluated, and off-site receptors evaluated.
► Section 6.0: Risk Characterization – This section presents the results of the risk assessment for the exposure scenarios evaluated. An evaluation of the zone of impact (ZOI), sensitive receptors, and population health risks are presented where appropriate. ► Section 7.0: Certification – This section includes the proof of certification for this RRP. ► Section 8.0: References – This section identifies the various publications, sources, and other references used to prepare this RRP and the RRP HRA.
► Appendix A: Figures – This appendix includes the figures associated with the RRP HRA. ► Appendix B: Tables – This appendix includes supplementary tables of modeling input and output results for the RRP HRA.
► Appendix C: Emissions Calculations – This appendix includes the updated toxic emissions calculations from calendar year 2020 used for the RRP HRA.

In addition to this RRP, the required and supplemental electronic files associated with the RRP HRA, including modeling input and output files, have been submitted to SCAQMD via email. 164
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3. RISK REDUCTION MEASURES
This section identifies the minimum plan elements, including a discussion of the baseline health risk impacts from which risk reduction can be measured.

3.1 Facility Identification
Company Name CalPortland Company
Facility Name CalPortland Redding Cement Plant
Facility Address 15390 Wonderland Blvd
Redding, California 96003
Facility SIC 3241

3.2 Baseline Health Risks
For purposes of this RRP, the 2020 HRA will serve as initial baseline to evaluate the extent of health risk reductions required to meet the RRP thresholds. The submitted and approved 2020 HRA indicated the cancer MEIR was 24.35, the acute noncancer risk MEIR was 1.88, and the acute noncancer risk MEIW was 1.13.

3.3 Source Identification
The RRP must identify each emission source that requires risk reduction to bring the risk below the significant thresholds. As part of this RRP, it was identified that the largest contributors to the cancer health risk were from various baghouse emissions and road dust emissions. Similarly, it was identified that the largest contributors to the acute health risk were from gasoline tanks. Therefore, the primary emission sources subject to this RRP are identified in Table 3-1 below.

Table 3-1. RRP Emission Sources
Emission
Source
Category
Emission
Source
Identification
Facility
Department/
Process
RRP Action
Baghouse
EA-87 Finish Grinding Remove from service
EA-92/93 Finish Grinding Remove from service
EB-142 Finish Grinding Remove from service
E-30 Finish Grinding Remove from service
E-34/35 Finish Grinding Remove from service
E-12 Finish Grinding Remove from service
E-230 Finish Grinding Remove from service
E-231 Finish Grinding Remove from service
J-162 Storage and Shipping Increase Control Efficiency (lower grain loading) J-168 Storage and Shipping Increase Control Efficiency (lower grain loading) J-174 Storage and Shipping Increase Control Efficiency (lower grain loading) J-321 Storage and Shipping Increase Control Efficiency (lower grain loading) J-345 Storage and Shipping Increase Control Efficiency (lower grain loading) G-206 Raw Milling and Kiln Increase Control Efficiency (lower grain loading) G-418 Raw Milling and Kiln Increase Control Efficiency (lower grain loading) G-451 Raw Milling and Kiln Increase Control Efficiency (lower grain loading) 165
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Emission
Source
Category
Emission
Source
Identification
Facility
Department/
Process
RRP Action
G-465 Raw Milling and Kiln Increase Control Efficiency (lower grain loading) S-210 Raw Milling and Kiln Increase Control Efficiency (lower grain loading) S-253 Raw Milling and Kiln Increase Control Efficiency (lower grain loading) Storage
Tank
K-42 Facility-Wide Increase Control Efficiency (install vapor recovery system)
K-44 Facility-Wide Remove from service
Road Dust
Paved External
Plant Roads Facility-Wide Increase Control Efficiency (water flushing and sweeping) Paved Internal
Plant Roads Vehicle Travel Increase Control Efficiency (water flushing) Unpaved
Limestone Quarry
Roads
Vehicle Travel Increase Control Efficiency (additional watering and speed limitations)
Unpaved Shale
Quarry Roads Vehicle Travel Increase Control Efficiency (additional watering and speed limitations)

3.4 Risk Reduction Evaluation
The RRP must include an evaluation of the risk reduction measures available for applicable sources identified in Section 3.3, including identification of risk reduction measure(s), emission reduction potential, and risk reduction potential.

3.4.1 Baghouses

3.4.1.1 Risk Reduction Measure 1: Finish Mill Replacement CalPortland currently operates three finish mills under the Finish Grinding Department, finish mills A, B, and C. The finish mills are used to blend clinker, the intermediary product from the kiln, with other additives such as limestone, gypsum, supplementary cementitious materials, etc., to form cement.

Finish mill baghouses EA-92/93, E-30, and E-34/35 were the second, third, and fourth highest contributors to cancer risk, respectively. CalPortland proposes replacing the three existing finish mills with a singular finish mill in order to reduce particulate matter emissions and increase process efficiency. As a result, several baghouses in the Finish Grinding Department identified in Table 3-1 will be decommissioned and replaced with baghouses associated with the new finish mill. Table 3-2 below lists the flow rate and grain loading of the proposed baghouses for the new finish mill. Grain loading is the outlet concentration of the exhaust stream (i.e., a lower grain loading denotes less particulate matter emissions).

Table 3-2. Proposed New Finish Mill Baghouses
Baghouse ID Flowrate
(dscfm)
Proposed Grain Loading
(gr/dscf)
BF-046 4,296 0.005
BF-05 4,296 0.005
BF-042 4,296 0.005
BF-101 11,456 0.002
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Baghouse ID Flowrate
(dscfm)
Proposed Grain Loading
(gr/dscf)
BF-102 4,009 0.005
BF-103 4,009 0.005
BF-104 4,009 0.005
BF-105 4,296 0.005
BF-106 5,250 0.005
BF-107 3,341 0.005
BF-108 6,205 0.005
BF-200 167,060 0.002
BF-300 47,732 0.002
The new finish mill system is expected to reduce particulate emissions by 3.39 lb/hr or 37% when compared to finish mills A, B, and C. Section 4.2 includes additional details on the emission calculations. The cancer health risk from the 2020 HRA was largely driven by the finish mill baghouses, which mainly consisted of hexavalent chromium and other heavy metals (arsenic, cobalt, nickel, cadmium) that are particulate toxic air contaminants. Since the new finish mill baghouses will result in a reduction of particulate matter (PM) emissions, they will also reduce the amount of toxic air contaminants emitted and lower the Facility’s risk.

3.4.1.2 Risk Reduction Measure 2: Baghouse Upgrades
CalPortland proposes to reduce the maximum outlet loading of selected baghouses through either replacement or bag material upgrades. Table 3-3 below lists the flow rate, current grain loading, and proposed grain loading of targeted baghouses.

Table 3-3. Proposed Baghouse Upgrades
Baghouse ID Flowrate
(dscfm)
Current Grain Loading
(gr/dscf)
Proposed Grain
Loading
(gr/dscf)
J-162 16,070 0.015 0.002
J-174 5,580 0.015 0.005
J-168 7,230 0.015 0.005
J-345 4,930 0.015 0.005
J-321 4,930 0.015 0.005
G-418 9,000 0.015 0.005
S-210 6,000 0.015 0.005
G-465 23,500 0.0094 0.005
G-206 6,000 0.015 0.005
G-451 1,800 0.100 0.005
S-253 12,000 0.015 0.005
The baghouse upgrades result in an 8.9 lb/hr or 70% reduction when compared to baseline. Section 4.2 includes additional details on the emission calculations The cancer health risk from the 2020 HRA were largely driven by the storage and shipping department and raw milling and kiln department baghouses, which mainly consisted of hexavalent chromium and other heavy metals (arsenic, cobalt, nickel, cadmium) that are particulate toxic air contaminants. Since the baghouse upgrades will result in a reduction of PM emissions, they will also reduce the amount of toxic air contaminants emitted and lower the Facility’s risk. 167
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3.4.2 Gasoline Storage Tanks

3.4.2.1 Risk Reduction Measure 3: Removal from Service
CalPortland proposes to remove gasoline storage tank K-44 from service, meaning no fuel will be stored in the storage tank. The noncancer acute health risk from the 2020 HRA was primarily driven by benzene emissions from gasoline storage tanks, which is a volatile organic compound (VOC) toxic air contaminant.

Removing the K-44 from service will completely eliminate toxic air emissions from this source. Removal of K44 from service will result in a reduction of VOC emissions of up to 4.49 lb/hr and 100% reduction compared to the baseline.

3.4.2.2 Risk Reduction Measure 4: Phase I Vapor Recovery Unit CalPortland proposes to install a vapor recovery unit system on gasoline storage tank K-42. As stated above, the noncancer acute health risk from the 2020 HRA was primarily driven by benzene emissions from gasoline storage tanks. Vapor recovery is a proven technology to reduce approximately 95% of emissions from volatile organics such as benzene and is widely used to reduce VOC emissions from fixed roof storage tanks. Addition of a vapor recovery system on K-42 will result in a reduction of VOC emissions of up to 8.5 lb/hr and 95% reduction compared to the baseline.

3.4.3 Road Dust

3.4.3.1 Risk Reduction Measure 5: Increased Watering and Speed Limits on Unpaved Roads
CalPortland will increase the control efficiency on the unpaved roadways at the Facility, specifically the limestone quarry and shale quarry roads. Particulate matter emissions are generated by vehicles driving over unpaved roads which disturbs dust on the road surface.

CalPortland proposes to increase the watering on the unpaved roads and to add a vehicle speed limit of 25 miles per hour on the roads leading to the limestone and shale quarries. Watering increases the moisture content of the dust on the road surface, making the dust less likely to leave the road surface. Adding a speed limit further reduces the chance of dust being entrained by the wind.

The unpaved roads were a smaller contributor to the cancer health risk from the 2020 HRA, of which contributions were mostly hexavalent chromium and other heavy metals (cobalt, arsenic, nickel, cadmium) that are particulate toxic air contaminants. The increase in control strategies presents a reduction in PM emissions of up to 62.6 lb/hr and a 63% decrease in particulate matter emissions from the unpaved roads.

3.4.3.2 Risk Reduction Measure 6: Water Flushing Followed By Sweeping on Paved Plant External Roadways
CalPortland proposes a control efficiency of 83% on the paved plant external roadways, which are the roads servicing delivery and customer trucks. The control efficiency of 83% will be achieved through water flushing four times a day followed by sweeping after each water flushing event.

The plant external roadways were a significant contributor to the cancer risk from the 2020 HRA, which was mainly driven by emissions from hexavalent chromium and other heavy metals (cobalt, arsenic, nickel, cadmium) that are particulate toxic air contaminants. Since the proposed control measures will result in a reduction of PM emissions, they will also reduce the amount of toxic air contaminants emitted and lower the 168
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Facility’s risk. The increase in control strategies presents a reduction in PM emissions of up to 7.0 lb/hr and a 83% decrease in particulate matter emissions from the unpaved roads.

3.4.3.3 Risk Reduction Measure 7: Water Flushing on Paved Plant Internal Roadways CalPortland proposes a control efficiency of 63% on the paved plant internal roadways, which are the roads for CalPortland employees traveling within the plant. The control efficiency of 63% will be achieved through water flushing three times a day.

The plant internal roadways were a smaller contributor to the cancer risk from the 2020 HRA, of which contributions were mainly from hexavalent chromium and other heavy metals (cobalt, arsenic, nickel, cadmium) that are particulate toxic air contaminants. The increase in control strategy presents a reduction in PM emissions of 0.4 lb/hr and a 62% decrease in particulate matter emissions from the unpaved roads.

3.5 Schedule
The RRP must specify a schedule for implementing the specified risk reduction measures as quickly as feasible.

The schedule shall include the submittal of all necessary applications for permits to construct or modify within, dates equipment will be installed, dates process changes will be completed, and specify dates for demonstrating the effectiveness of risk reduction measures. At the time of this RRP submittal, Table 3-4 below shows the anticipated schedule for the permit applications and implementation schedule of the risk reduction measures.

Table 3-4. RRP Implementation Schedule
Risk
Reduction
Measure
Description Permit Application
Date Implementation Date
1 Replace Finish Mills A, B, and C with a
new finish mill 3/1/2029 1/1/2031
2 Reduce maximum outlet grain loading
on baghouses 3/1/2029 1/1/2031
3 Remove gasoline storage tank K-44
from service N/A 6/1/2026
4 Add vapor recovery system to gasoline
storage tank K-42 3/1/2029 1/1/2031
5 Increase control efficiency on unpaved
roads through additional watering and
adding vehicle speed limitations on
quarry access roads
N/A 6/1/2026
6 Increase control efficiency on paved
external plant roads through water
flushing four times a day, followed by
sweeping
N/A 6/1/2026
7 Increase control efficiency paved
internal plant roads through water
flushing three times a day
N/A 6/1/2026
CalPortland will implement the proposed risk reduction measures as quickly as economically and technically feasible. Several of the risk reduction measures (i.e., 1, 2, and 4) proposed by the Facility require large capital 169
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expenditures, significant planning, and lead time, and are proposed to be implemented by March 1, 2031.

Other risk reduction measures such as removing gasoline storage tank K-44 from service and increasing the control efficiency on paved and unpaved roads will be implemented by June 1, 2026, to allow time for employee training and coordination.

The residential cancer and acute health risk impacts are expected to be reduced to below SCAQMD’s significant risk levels upon completion of all seven risk reduction measures, as demonstrated by the updated HRA provided in this RRP. The worker cancer and chronic health risk will remain below the SCAQMD’s significant risk levels, consistent with the 2020 HRA.

3.6 Time Extension
If the significant risk level cannot be reached within the time period allowed by SCAQMD, the RRP must also include the following: a request to the district for an extension of time to comply, an evaluation of all risk reduction measures available, a demonstration of technical infeasibility or unreasonable economic burden for risk reduction options that will not be implemented, and identification of activities to identify or develop additional risk reduction measures to enable the operator to comply by the specified date. At the time of the RRP submittal, CalPortland is not requesting a time extension.

3.7 Residual Risk Estimate
The RRP must provide an estimation of the residual health risk after implementation of the specified risk reduction measures. Table 1-3 identifies the post-implementation health risks for the Facility based on the emission inventory from calendar year 2020, which indicates residual risks will decrease to well below SCAQMD’s significant risk levels. Additionally, Table 1-4 compares the estimated health risk from the proposed risk reduction measures relative to the 2020 HRA, which was used as the baseline for this RRP. CalPortland will significantly lower the Facility’s cancer, chronic, and acute health risk with implementation of the risk reduction measures in this RRP.
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4. HAZARD IDENTIFICATION
Hazard identification determines whether a hazard exists, and, if so, identifies the pollutant(s) of concern and evaluates whether a pollutant has potential to cause cancer and/or other adverse health effects. In general, OEHHA guidelines require HRAs for chemicals identified as Appendix A-I Substances per AB 2588 regulations.

This section provides information on the emissions estimates for those emissions sources impacted by this RRP and identifies the pollutants of concern. This section references several documents that informed the calculation methods and assumptions used in this RRP. Refer to Section 8 of this report for applicable reference citations.

4.1 Updated Emissions Inventory
For purposes of this RRP HRA, Trinity utilized the SCAQMD approved calendar year 2020 toxics emission inventory, updated the emissions for the sources identified in Section 3.3, and added the sources associated with the new finish mill (Risk Reduction Measure 1). All other emission sources were unchanged and are included in this RRP per the approved 2020 HRA. Trinity used the hours of operation, material throughputs, and toxic speciation profiles from the SCAQMD approved calendar year 2020 toxics emissions inventory for the emission calculations of the RRP selected sources. Please refer to Appendix C for the updated toxic emissions inventory included with this RRP.

4.1.1 Baghouses
CalPortland implements baghouses throughout the manufacturing process to collect material fines for reintroduction into the production stream, minimization of particulate emissions, and/or employee safety.

Baghouse emissions are calculated using the baghouse flowrate and grain loading according to the equations below.

𝐻𝐻𝐻𝐻𝐻𝐻𝐻𝐻𝐻𝐻𝐻𝐻 𝐸𝐸𝐸𝐸𝐸𝐸𝐸𝐸𝐸𝐸𝐸𝐸 𝐸𝐸𝐸𝐸 � 𝑙𝑙
ℎ � = 𝐵𝐵𝐵𝐵𝐵𝐵ℎ 𝑜𝑜 𝐹𝐹 𝐹𝐹 𝑅𝑅 𝑅𝑅 (𝑑𝑑 𝑑𝑑𝑑𝑑 ) × 60 � ℎ � × 𝑀𝑀 𝑀𝑀 𝑂𝑂 𝐺𝐺 𝐿𝐿 � 𝑑𝑑 𝑑𝑑𝑑𝑑 � × 1 7,000 � 𝑙𝑙 �
𝐴𝐴 𝐸𝐸𝐸𝐸𝐸𝐸𝐸𝐸𝐸𝐸𝐸𝐸 𝐸𝐸𝐸𝐸 ( 𝑡𝑡 ) = 𝐻𝐻𝐻𝐻𝐻𝐻𝐻𝐻𝐻𝐻𝐻𝐻 𝐸𝐸𝐸𝐸𝐸𝐸𝐸𝐸𝐸𝐸𝐸𝐸 𝐸𝐸𝐸𝐸 � 𝑙𝑙 ℎ � × 𝐻𝐻𝐻𝐻𝐻𝐻𝐻𝐻 𝑂𝑂 �
ℎ � ×1
2,000 � 𝑙𝑙 �
For Risk Reduction Measure 1, the new finish mill baghouse hourly emissions were calculated using the proposed flow rates and grain loadings provided by CalPortland. For annual emissions, the hours of operation were set equal to the maximum hours of operation during calendar year 2020 from finish mills A, B, and C.

For Risk Reduction Measure 2, the hourly emissions of the selected baghouses were calculated using the permitted flow rates and proposed grain loadings. Annual emissions were calculated using the annual hours of operation from the approved 2020 toxic emissions inventory.

4.1.2 Gasoline Storage Tanks
CalPortland uses gasoline storage tanks as a source of fuel for the various vehicles used onsite. Both gasoline storage tanks, K-44 and K-42, are fixed roof tanks.

Emissions from the gasoline storage tanks were determined using Trinity’s Tank Calculation Tool which utilizes the methods and equations from AP-42, Chapter 7.1, Organic Liquid Storage Tanks. 171
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For Risk Reduction Measure 3, gasoline storage tank K-44 emissions were set equal to zero as K-44 will be removed from service as part of this RRP.

For Risk Reduction Measure 4, a control efficiency of 95% was applied to the VOC emissions from gasoline storage tank K-42 for the use of a Phase I vapor recovery system. This control efficiency is based on guidance from the California Air Pollution Control Officers Association Gasoline Service Station Industrywide Risk Assessment Guidelines (November 1997).

4.1.3 Facility Roadways
PM emissions from fugitive dust entrainment are generated from vehicles traveling over paved and unpaved roadways. Emissions from the paved roadways were calculated using AP-42 Chapter 13.2.1, Paved Roads, and emissions from the unpaved roadways were calculated using AP-42 Chapter 13.2.2, Unpaved Roads.

For Risk Reduction Measure 5, a control efficiency of 89% was applied to specified unpaved roadways to reflect additional watering and vehicle speed reductions. The control efficiency used for the RRP HRA was calculated using the below equation.

𝑇𝑇 𝐶𝐶 (%) = 1 − [ (100 − 𝐶𝐶 (%))/100 ] ∗ [ (100 − 𝐶𝐶 (%))/100) ] A control efficiency of 80% for watering is based on the San Diego Air Pollution Control District Haul Road Emissions (2025), Table 3 - Default Values - Unpaved Haul Roads. The amount of water required to achieve the control efficiency was calculated using Mojave Desert Air Quality Management District’s Emissions Inventory Guidance, Mineral Handling and Processing Industries, and is included as part of the updated emissions calculations. A control efficiency of 44% was applied for reducing vehicle speed on unpaved roads to 25 mph based on the WRAP Fugitive Dust Handbook.

For Risk Reduction Measure 6, a control efficiency of 83% was applied to the plant external paved roadways to reflect water flushing four times a day, followed by sweeping. The control efficiency of 83% is based on Mojave Desert Air Quality Management District’s Emissions Inventory Guidance, Mineral Handling and Processing Industries, Section J. The equation below was used to calculate the control efficiency, where V is the number of vehicles that pass since the last water flush, and was assumed to be 50 vehicles based on calendar year 2020 data.

𝐶𝐶 (%) = 96 − (0.263 ∗ 𝑉𝑉)
For Risk Reduction Measure 6, a control efficiency of 62% was applied to the plant internal paved roadways to reflect water flushing three times a day. The control efficiency of 62% is based on Mojave Desert Air Quality Management District’s Emissions Inventory Guidance, Mineral Handling and Processing Industries, Section J The equation below was used to calculate the control efficiency, where V is the number of vehicles that pass since the last water flush, and was assumed to be 32 vehicles based on calendar year 2020 data.

𝐶𝐶 (%) = 69 − (0.231 ∗ 𝑉𝑉)
These emissions calculation updates are incorporated into the toxic emissions inventory submitted with this RRP. All other emissions sources were unchanged for proper comparison to the baseline and 2020 HRA. 172
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4.2 Pollutants of Interest
Per OEHHA Guidelines, the modeled chemicals in this HRA from the Facility emission sources were identified from AB 2588 Appendix A-I list of substances. The chemicals that were identified from the listed Appendix AI substances are displayed in Appendix B, Tables 3 and 4. Chemical profiles of these air toxics are well established by OEHHA and regulatory authorities, such as physical characteristics, general uses, and toxicity information. As shown by Appendix B, Table 3, of the 64 identified AB 2588 emitted substances, 23 substances have carcinogenic impacts, 27 substances have chronic noncancer hazard impacts, 10 substances have 8- hour chronic non cancer hazard impacts, and 18 substances have acute noncancer hazard impacts. Note that some substances have multiple health impacts. As shown by Appendix B, Table 4, potential target organs for the acute and chronic noncancer health effects are as follows: cardiovascular system (CV), central nervous system (CNS), immune system (IMMUN), kidney (KIDN), alimentary liver system (GILV), reproductive system (REPRO), respiratory system (RESP), skin (SKIN), eye (EYE), endocrine system (ENDO), and hematopoietic system (HEM.).
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5. EXPOSURE ASSESSMENT
Exposure assessment involves estimating the extent of public exposure to each regulated substance for which there exists potential cancer risk and/or noncancer health hazard effects. This involves modeling of environmental transport, evaluation of environmental fate, identification of exposure routes, identification of exposed populations, and estimation of short-term and long-term exposure levels.

This section describes air dispersion modeling and associated parameters used to estimate the potential for human exposure to the emissions regulated under AB2588 this Facility and achieves the following: (1) summarize and describe the source information and emission estimates used in the environmental transport models; (2) describe potentially exposed populations; (3) describe the assumptions used in the air dispersion and assessment of chemical exposure model; and (4) identify primary methodologies for calculating health risk impacts.

5.1 Air Dispersion Modeling
Air dispersion modeling is used to estimate off-site air concentrations of chemicals associated with the Facility’s emissions. For this HRA, Trinity used the most recent version of the American Meteorological Society (AMS)/EPA Regulatory Model (AERMOD) version 24142. Developed to replace the Industrial Source Complex Short-Term Version 3 (ISCST3) model, AERMOD is a steady-state Gaussian plume model that can be used to assess ground level pollutant concentrations from a wide variety of sources (point, line, area or volume) for distances up to approximately 50 km, including urban and rural terrains. AERMOD can calculate ground level concentrations for various averaging periods, such as acute short-term exposures (1-hour averaging), chronic long-term exposures (annual averages) or other required meteorological data periods (i.e., 3-hour, 8-hour, 24-hour). The assumptions used for this model used in the RRP HRA are discussed in more detail below.

5.1.1 Model Options
For this RRP HRA, the following AERMOD model options were used in the modeling analysis:
• Projection: Universal Transverse Mercator (UTM)
• Datum: North American Datum of 1983 (NAD83)
• UTM Zone: 10
• Hemisphere: Northern
• Selection: Hourly and Period
The following default model options were used in accordance with OEHHA guidelines:
• Use regulatory default? Yes
• Urban or Rural? Rural
• Gradual plume rise? Yes
• Stack-tip downwash? Yes
• Buoyancy-induced dispersion? Yes
• Calms processing? No
• Missing data processing? No
• Include building downwash? Yes
• Lowbound option? No
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To determine noncarcinogenic acute health hazards, AERMOD model calculated ground level concentrations for the maximum 1-hour averaging period. To determine noncarcinogenic chronic health hazards and carcinogenic health impacts, AERMOD model calculated ground level concentrations for the annual average period.

5.1.2 Source Parameters
The AERMOD model supports a variety of source types, including point, area, volume, and line. Based on current facility operations and reported emissions, modeling sources were identified for purposes of this HRA.

Modeling sources are generally identified as point, line, volume, or area sources.

All relevant emissions source parameters that were applied for this model are provided in Appendix B, Table 5 which includes source ID, source type, stack height, stack diameter, flow rate, exhaust temperature, and initial dimensions. Maximum 1-hour and annual average emission rates for each source and regulated chemical are provided in Appendix B, Tables 2a and 2b. For input sources, AERMOD calculates ground level concentrations based on defined source-specific parameters, including the emission rate, stack height, stack inside diameter, stack exit velocity, and stack gas temperature.

5.1.3 Receptors
A Cartesian grid representing off-site receptor points around the primary project area was included in the dispersion modeling. The most recent OEHHA guidance was followed which states, “the modeling analysis should contain a network of receptor points with sufficient detail (in number and density) to permit the estimation of the maximum concentrations.” The modeling discrete receptor grid included a fine grid receptor network of 100 meter spacing out to 2.5 kilometers from the Facility center point, and a coarse grid receptor network of 1,000 meter spacing out to 5.5 kilometers from the Facility center point. ► Fence-line – Fence-line receptors were defined at 20-meter spacing along the property boundary. ► Nearby Residences and Workers – The general locations of potential MEIs were determined based on the location of sources and the surrounding land use (Appendix A, Figures 4 through 9). The nearest immediate residential receptor is located East of the Facility boundary. The nearest worker receptor is located South of the Facility boundary. The MEI receptors were conservatively matched to grid receptors closest to residences, workers, and sensitive populations with maximal impacts.

► Sensitive Receptors – In accordance with OEHHA guidance, sensitive receptors must be identified within the ZOI, such as K-12 schools, hospitals, nursing/convalescent homes, daycares and senior centers. For the RRP HRA, three sensitive receptors were identified: Receptor ID 1462, Receptor ID 1463, and Receptor ID 1464. There are no sensitive receptors above the significant risk levels. ► Census Block Receptors – AB2588 also requires an estimate for the number of impacted individuals in residences and off-site workplaces within the ZOI. Census data is used to determine affected populations within geographic areas defined by census tracts. A census tract centroid (geographical center) is identified as a receptor location, which represents exposure to the population within that census tract. For this HRA, affected populations were estimated based on census data obtained from the built-in HARP 2.0 2010 Census Database. Census tract information was obtained directly from HARP 2.0 by inputting the facility center point and requesting receptors out to a distance of 7.0 km. A list of the census block receptors is included in Appendix B, Table 28. All census block receptors with a population of 0 were excluded from the Cancer Burden Analysis.
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5.1.4 Building Downwash
The purpose of this evaluation is to determine if stack discharge might become caught in the turbulent wakes of structures within close proximity. Wind blowing around a building creates zones of turbulence that are greater than if the building was absent. The USEPA-approved Building Profile Input Program PRIME (BPIPPRIME) was used to simulate the building downwash, which is the effect of nearby structures on the flow of the plumes from their respective emission sources. U.S. EPA has promulgated stack height regulations that restrict the use of stack heights in excess of “Good Engineering Practice” (GEP) in air dispersion modeling analyses.4 Under these regulations, that portion of a stack in excess of the GEP height is generally not creditable when modeling to determine source impacts. This essentially prevents the use of excessively tall stacks to reduce the ground-level pollutant concentrations. The stack height not subject to the effects of downwash, called the GEP stack height, is defined by the following formula:

HGEP = H + 1.5L
Where:

HGEP = GEP stack height,
H = structure height, and
L = lesser dimension of the structure (height or projected width) This equation is limited to stacks located within 5L of a structure. Stacks located at a distance greater than 5L are not subject to the wake effects of the structure. If there is more than one stack at a given facility, the above equation must be successively applied to each stack. If more than one structure is involved, the equations must also be successively applied to each structure. To calculate downwash effects, if any, building coordinates and height of nearby structures were inputted into BPIP-PRIME and can be seen on Appendix B, Table 6.

5.1.5 Meteorological and Elevation Data
Five years of pre‐processed meteorological data supplied by CARB from 2017 through 2021, was used for this model.5 The closest meteorological stations were selected for surface and upper air data. Complete data was acquired from the surface station at the Redding Municipal Airport (Station ID 24257; elevation of 151.5 meters); upper air data was acquired from the Rogue Valley International Airport (Station ID 24225). Terrain data was obtained from The National Map Viewer (TNM Viewer) in the form of National Elevation Dataset (NED) files at 1/3 arc second resolution.

5.2 Assessment of Chemical Exposure
For this RRP HRA, SCAQMD requires the use of the Hotspots Analysis and Reporting Program, Version 2 (HARP2). The health risk module of HARP2 incorporates the current OEHHA guidelines, exposure factors, and most recent toxicity values for modeled substances.
4 U.S. Environmental Protection Agency, Good Engineering Practice Stack Height Regulations, October 1988 5 CARB meteorological data is accessible online here: https://ww2.arb.ca.gov/resources/documents/harp-aermodmeteorological-files 176
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5.2.1 HARP2 Analysis
AERMOD estimates off-site ambient air concentrations for each averaging period (i.e., 1-hour, annual average, etc.) based on source parameters and a normalized emission rate (1 gram/sec) from each emission source.

The AERMOD output provides a theoretical concentration based on this normalized emission rate for each chemical at each receptor location from each source. This normalized emission rate for each source was used to generate a file that contained the partial contribution of each source to the total air concentration in units of micrograms per cubic meter (µg/m3) at each receptor. This AERMOD model output file was used as an input file to the HARP2 model, which combined the partial contributions with actual source emission rates to estimate the chemical-specific air concentrations at each receptor location. HARP2 sums up the contribution from each source at a given receptor in order to estimate the total pollutant concentration for each emitted chemical. HARP2 also contains updated toxicity information for listed regulated substances, which are applied to estimate cancer and noncancer health hazard impacts for relevant exposure pathways and applicable target organs.

As required, the HARP2 model input and output files were submitted with this HRA report in electronic format, as listed in Section 2.4.

5.2.2 Exposure Pathways
Exposure pathways are generally classified as primary pathways and secondary pathways. Inhalation is the primary exposure pathway for all modeled sources and substances. For multi-pathway substances, there are non-inhalation exposure pathways that are also evaluated. As applicable, the non-inhalation pathways include dermal exposure, water ingestion, crop ingestion (direct deposition), soil ingestion, ingestion of mother's milk, fish, and dairy products, or other.

HARP 2.0 default values as recommended by OEHHA Hot Spots Guidance (Cal/EPA 2015) for preparing a Tier 1 health risk screening assessment were selected for the risk evaluations for all receptor types. A summary of the receptor model selections for this HRA analysis is shown in Table 5-1 below.

Table 5-1. HARP 2.0 Risk Scenarios Evaluated
Risk
Scenario
Receptor
Type
Exposure
Duration
Intake
Rate
Percentile
Analysis
Types
Pathways
Evaluated Deposition Rate
Residential Individual
Resident 30 OEHHA Derived
Cancer
Chronic
Acute
Inhalation
Soil
Dermal
Mother’s
Milk

0.02 m/s
(controlled sources)

0.05 m/s
(uncontrolled sources)
Worker Worker 25 OEHHA
Derived
Cancer
Chronic
8-hr Chronic
Acute
Inhalation
Soil
Dermal

0.02 m/s
(controlled sources)

0.05 m/s
(uncontrolled sources)
Sensitive Individual
Resident 30 OEHHA Derived
Cancer
Chronic
Acute
Inhalation
Soil
Dermal
Mother’s
Milk

0.02 m/s
(controlled sources)

0.05 m/s
(uncontrolled sources)
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Risk
Scenario
Receptor
Type
Exposure
Duration
Intake
Rate
Percentile
Analysis
Types
Pathways
Evaluated Deposition Rate
Census
Tract
Individual
Resident 70 OEHHA Derived Cancer
Inhalation
Soil
Dermal
Mother’s
Milk

0.02 m/s
(controlled sources)

0.05 m/s
(uncontrolled sources)

5.2.3 Carcinogenic Health Impacts
In accordance with the OEHHA Guidelines, cancer risk estimates are based on the theoretical upper-bound cancer risk were evaluated for the MEIR, MEIW, and Point of Maximum Impact (PMI). The guidelines also require cancer risk to be evaluated for affected sensitive receptors and populations within the Zone of Impact (ZOI).

The HARP2 model computes the total cancer risk from both inhalation and non-inhalation pathways at each receptor location. For example, the inhalation risk for each pollutant at a receptor location is calculated by multiplying the inhalation dosage by its cancer potency factor (example below). The estimated risks for individual substances emitted by the Facility are added to provide the total cancer risk for individual receptor locations. For inhalation exposures, cancer risk must be separately calculated for specified age groups because of age differences in sensitivity to carcinogens and age differences in intake rates. Some substances are subject to deposition onto soil, plants, and water bodies and therefore need to be evaluated by the appropriate non-inhalation pathway. Cancer risk for both inhalation and non-inhalation pathways is calculated using Equation 8.2.4 A and 8.2.5 from the OEHHA Guidelines, generalized in the following equation:

Cancer Riski= Dose × CPF × ASF ×
ED
AT × FAH
Where:

Cancer Riski = Cancer risk for specific exposure pathway i (inhalation/non-inhalation) Dose = Daily Inhalation Dose (mg/kg-day)
CPF = Cancer Potency (or Unit Risk Factor) (mg/kg-day)-1 ASF = Age sensitivity factor for a specified age group (unitless) ED = Exposure duration (in years) for a specified age group AT = Averaging time for lifetime cancer risk (years)
FAH = Fraction of time spent at home (unitless) (residential inhalation pathway only)
Per OEHHA Guidelines, Trinity assumes an exposure duration of 30 years for residential and sensitive receptors. For worker receptors, the exposure duration is reduced to 25 years.

5.2.4 Noncarcinogenic Health Impacts
Potential noncarcinogenic health effects, acute hazard index (HI) and chronic HI, associated with exposure to chemical emissions have been evaluated using the HARP2 model. Acute and chronic health hazards for different substances impact different target human organs (e.g., central nervous system, reproductive system, liver, etc.). For inhalation exposures, the model divides the predicted average air concentrations for each chemical at the receptor locations by the appropriate inhalation Reference Exposure Levels (RELs) provided by OEHHA. These ratios are chemical-specific to the chronic or acute hazard quotients. 178
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Noncarcinogenic health effects were also evaluated in terms of their assumed potential additive effect on target organs or systems. For inhalation exposures, the target organ-specific HI is the sum of the individual hazard quotients for each chemical affecting a specific target organ as defined in Section 8.3.1 of the OEHHA Guidelines, as shown below:

Hazard Index (HI)Organ=� � GLC
RELOrgan�
Chemical
Where:

GLC = ground level concentration (µg/m3), annual average concentration for chronic and 1- hour max concentration for acute
REL = Reference Exposure Level (µg/m3)
In the case of a multi-pathway pollutant (i.e., pollutants with non-inhalation exposures), health risk impacts consider the additional noncancer risks associated with non-inhalation routes of exposure from certain pollutants.
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6. RISK CHARACTERIZATION
This section discusses the results of the modeling, including noncancer health hazards, carcinogenic health hazards, zones of impact, maximum exposures, cancer burden calculations and affected populations. The following summarizes the key modeling parameters and results from this RRP HRA.

6.1 Dose-Response and Dose Estimates
Dose-response assessment describes the quantitative relationship between the amount of exposure to a substance (the dose) and the incidence or occurrence of an adverse health impact (the response). For cancer health risk, CARB’s Scientific Review Panel on Toxic Air Contaminants has approved a list of cancer potency factors developed by OEHHA or USEPA. The potency factors are provided in Appendix A of the OEHHA Guidelines and used in HARP2 ADMRT. The potency factors for the Facility are listed in Appendix B, Table 3.

For noncancer health effects, the dose-response information is used to determine the RELs. The RELs are provided in Appendix B of the OEHHA Guidelines and used in HARP2 ADMRT. The RELs for the Facility are also listed in Appendix B, Table 3.

6.2 Zone of Impact
As required, modeling receptor points were identified to include the property fence line, nearby workers, and local residential neighborhoods. In addition, any sensitive receptors within the ZOI were identified (see Appendix A, Figure 4 for ZOI residential cancer risk). The ZOI is commonly defined as the area surrounding the Facility where receptors have a potential cancer risk equal or greater than 1 in 1 million, acute hazards equal or greater than 0.5, or chronic hazards equal or greater than 0.5. The ZOI is defined once the air dispersion modeling process has determined the pollutant concentrations at each designated off-site receptor and a risk analysis has been performed. The results from the HARP2 model provide the information necessary to identify the ZOI by generating the associated risk isopleths (i.e., a geographical presentation of areas of equal risk). Maps depicting the ZOIs for this HRA are provided in Appendix A, Figures 4 through 9.

6.3 Carcinogenic Health Effects

6.3.1 Point of Maximum Impact (PMI)
Results for the PMI by each pollutant and by each source are presented in Appendix B, Tables 8 and 9, respectively. The receptor ID, UTM coordinates, cancer risk, driving compound, driving emission source, and driving pathway for the PMI are listed below.
► Receptor ID – #530
► UTM Coordinates – 557254.9 E, 4509428.3 N
► Cancer Risk – 2.35 x 10-05
► Driving Compound – Hexavalent Chromium
► Driving Emission Source – Baghouse J-174, Truck Silos Dust Collector ► Driving Pathway – Inhalation
The PMI is located along south side of the Facility boundary, along Wonderland Blvd, shown on Appendix A, Figure 4.
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6.3.2 Maximum Exposed Individual Resident (MEIR)
Results for the MEIR by each pollutant and by each source are presented in Appendix B, Tables 10 and 11, respectively. The receptor ID, UTM coordinates, cancer risk, driving compound, driving emission source, and driving pathway for the MEIR are listed below.
► Receptor ID – #26
► UTM Coordinates – 557214.4 E, 4509122.3 N
► Cancer Risk – 9.92 x 10-06
► Driving Compound – Hexavalent Chromium
► Driving Emission Source – Baghouse J-174, Truck Silos Dust Collector ► Driving Pathway – Inhalation
The MEIR is located to the south of the Facility, near Fawndale Rd, shown on Appendix A, Figure 4. This figure also presents the cancer risk isopleths identifying the ZOI for residential modeling scenarios.

6.3.3 Maximum Exposed Individual Worker (MEIW)
Results for the MEIW by each pollutant and by each source are presented in Appendix B, Tables 12 and 13, respectively. The receptor ID, UTM coordinates, cancer risk, driving compound, driving emission source, and driving pathway for the MEIW are listed below.
► Receptor ID – #26
► UTM Coordinates – 557214.4 E, 4509122.3 N
► Cancer Risk – 8.35 x 10-07
► Driving Compound – Hexavalent Chromium
► Driving Emission Source – J174, Truck Silos Dust Collector ► Driving Pathway – Inhalation
The MEIW is located to the south of the Facility, near Fawndale Rd, shown on Appendix A, Figure 6. This figure also presents the cancer risk isopleths identifying the ZOI for worker modeling scenarios.

6.3.4 Sensitive Receptors
Appendix B, Table 7a identifies the location of the sensitive receptors, which are also shown in Appendix A, Figure 10. The results of the RRP HRA indicate that none of the sensitive receptors modeled exceeded the level requiring public notification or risk reduction.

6.3.5 Population Cancer Burden
AB 2588 requires an estimate of the number of impacted individuals in residences and off-site workplaces within the ZOI. Census data is used to determine affected populations within geographic areas defined by census tracts. A census tract centroid (geographical center) is identified as a receptor location, which represents exposure to the population within that census tract. Census tract information was obtained directly from the HARP2 ADMRT background data for census tracts located with the ZOI.

For the RRP HRA, affected populations were estimated based on census data from Calendar Year 2010, as published by the United States Census Bureau. The census tract receptors were separately inputted into AERMOD and are identified as receptors 1-281. The cancer burden results are presented in Appendix B, Table 28, as follows:
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► Total cancer burden – 0.00566

6.4 Noncancer Chronic Health Effects

6.4.1 Point of Maximum Impact (PMI)
Results for the PMI by each pollutant and by each source are presented in Appendix B, Tables 14 and 15, respectively. The receptor ID, UTM coordinates, chronic hazard, driving compound, driving emission source, and driving target organ for the PMI are listed below.
► Receptor ID – #888
► UTM Coordinates – 558754.9 E, 4510928.3 N
► Chronic Hazard – 0.30
► Driving Compound – Arsenic
► Driving Emission Source – M11, Limestone Loader to Dump Truck ► Driving Target Organ – Central Nervous System
The PMI is located along the northeast of the Facility boundary, west of the quarry operations as shown on Appendix A, Figure 5.

6.4.2 Maximum Exposed Individual Resident (MEIR)
Results for the MEIR by each pollutant and by each source are presented in Appendix B, Tables 16 and 17, respectively. The receptor ID, UTM coordinates, chronic hazard, driving compound, driving emission source, and driving target organ for the MEIR are listed below. ► Receptor ID – #26
► UTM Coordinates – 557214.4 E, 4509122.3 N
► Chronic Hazard – 0.14
► Driving Compound – Arsenic
► Driving Emission Source – G-465, Indirect Coal Firing System Dust Collector ► Driving Target Organ – Respiratory System
The MEIR is located to the south of the Facility, near Fawndale Rd, shown on Appendix A, Figure 6. This figure also presents the chronic hazard isopleths identifying the ZOI for residential modeling scenarios.

6.4.3 Maximum Exposed Individual Worker (MEIW)
Results for the MEIW by each pollutant and by each source are presented in Appendix B, Tables 18 and 19, respectively. The receptor ID, UTM coordinates, chronic hazard, driving compound, driving emission source, and driving target organ for the MEIW are listed below. ► Receptor ID – #26
► UTM Coordinates – 557214.4 E, 4509122.3 N
► Chronic Hazard – 0.11
► Driving Compound – Arsenic
► Driving Emission Source – G-465, Indirect Coal Firing System Dust Collector ► Driving Target Organ – Respiratory System
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The MEIW is located to the south of the Facility, near Fawndale Rd, shown on Appendix A, Figure 7. This figure also presents the chronic hazard isopleths identifying the ZOI for worker modeling scenarios.

6.4.4 Sensitive Receptors
Appendix B, Table 7a identifies the location of the sensitive receptors, which are also shown in Appendix A, Figure 10. The results of the RRP HRA indicate that none of the sensitive receptors modeled exceeded the level requiring public notification or risk reduction.

6.5 Noncancer Chronic 8-Hour Health Effects

6.5.1 Maximum Exposed Individual Worker (MEIW)
Results for the MEIW by each pollutant and by each source are presented in Appendix B, Tables 26 and 27, respectively. The receptor ID, UTM coordinates, chronic 8-hour hazard, driving compound, driving emission source, and driving target organ for the MEIW are listed below. ► Receptor ID – #26
► UTM Coordinates – 557214.4 E, 4509122.3 N
► Chronic Hazard – 0.02
► Driving Compound – Manganese
► Driving Emission Source – G-418, Clinker Handling Dust Collector ► Driving Target Organ – Central Nervous System
The MEIW is located to the south of the Facility, near Fawndale Rd, shown on Appendix A, Figure 8. This figure also presents the chronic hazard isopleths identifying the ZOI for worker modeling scenarios.

6.6 Noncancer Acute Health Effects

6.6.1 Point of Maximum Impact (PMI)
Results for the PMI by each pollutant and by each source are presented in Appendix B, Tables 20 and 21, respectively. The receptor ID, UTM coordinates, acute hazard, driving compound, driving emission source, and driving target organ for the PMI are listed below.
► Receptor ID – #1054
► UTM Coordinates – 558854.9 E, 4511428.3 N
► Acute Hazard – 0.40
► Driving Compound – Benzene
► Driving Emission Source – B52, Gasoline Tank - 350 gal ► Driving Target Organ – Immune System
The PMI is located north of quarry operations shown on Appendix A, Figure 10.

6.6.2 Maximum Exposed Individual Resident (MEIR)
Results for the MEIR by each pollutant and by each source are presented in Appendix B, Tables 22 and 23, respectively. The receptor ID, UTM coordinates, acute hazard, driving compound, driving emission source, and driving target organ for the MEIR are listed below. 183
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► Receptor ID – #6
► UTM Coordinates – 557504.8 E, 4509852.0 N
► Acute Hazard – 0.29
► Driving Compound – Nickel
► Driving Emission Source – G-465, Indirect Coal Firing System Dust Collector ► Driving Target Organ – Immune System
The MEIR is located to the east of the Facility boundary, along Wonderland Blvd, shown on Appendix A, Figure

9. This figure also presents the acute hazard isopleths identifying the ZOI for residential modeling scenarios.

6.6.3 Maximum Exposed Individual Worker (MEIW)
Results for the MEIW by each pollutant and by each source are presented in Appendix B, Tables 24 and 25, respectively. The receptor ID, UTM coordinates, acute hazard, driving compound, driving emission source, and driving target organ for the MEIW are listed below. ► Receptor ID – #4
► UTM Coordinates – 557591.4 E, 4509817.8 N
► Acute Hazard – 0.25
► Driving Compound – Nickel
► Driving Emission Source – G-465, Indirect Coal Firing System Dust Collector ► Driving Target Organ – Immune System
The MEIW is located to the east of the Facility boundary, along Wonderland Blvd, shown on Appendix A, Figure 9. This figure also presents the acute hazard isopleths identifying the ZOI for worker modeling scenarios.

6.6.4 Sensitive Receptors
Appendix B, Table 7a identifies the location of the sensitive receptors, which are also shown in Appendix A, Figure 10. The results of the RRP HRA indicate that none of the sensitive receptors modeled exceeded the level requiring public notification or risk reduction.
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8. REFERENCES
BREEZE AERMOD, 3D Analyst, Downwash Analyst, https://www.breeze-software.com/ California Air Pollution Control Officers Association (CAPCOA). 1997. Gasoline Service Station Industrywide Risk Assessment Guidelines.

Guidance Document: 1998-02-27 CAPCOA "Hot Spots" Gasoline Service Station Industrywide Risk Assessment Guidelines
California Air Resources Board (CARB). 2015. AB 2588 District Prioritization Scores and Risk Threshold Levels. https://ww2.arb.ca.gov/ab-2588-district-prioritization-scores-and-risk-threshold-levels-0 CARB. 2015. User Manual for The Hotspots Analysis and Reporting Program Air Dispersion Modeling and Risk Assessment Tool Version 2.
https://ww3.arb.ca.gov/toxics/harp/docs2/harp2rastuserguide.pdf CARB. 1977. Senate Bill (SB) 1731 Risk Reduction Audits and Plans General Guidance for Preparing Risk Reduction Plans.
https://ww2.arb.ca.gov/sites/default/files/2021-11/genguidl.pdf Google Earth, http://www.earth.google.com
Mojave Desert Air Quality Management District. 2013. Emissions Inventory Guidance, Mineral Handling and Processing Industries.
https://www.mdaqmd.ca.gov/home/showpublisheddocument/768/636305689272570000 Office of Environmental Health Hazard Assessment. 2015. The Air Toxics Hot Spots Program Guidance Manual for Preparation of Health Risk Assessments.
https://oehha.ca.gov/media/downloads/crnr/2015guidancemanual.pdf San Diego Air Pollution Control District. 2025. Haul Road Emissions. https://www.sdapcd.org/content/dam/sdapcd/documents/permits/emissions-calculation/haul-roademissions/APCD-Haul-Road-Emissions.pdf Shasta County Air Quality Management District. 2025. Approval of Health Risk Assessment, Facility ID 2.

United States Environmental Protection Agency (US EPA). 2025. AP-42, Fifth Edition, Volume I, Chapter 7, Section 1: Organic Liquid Storage Tanks.
https://www.epa.gov/system/files/documents/2025-09/c7s1_2025.pdf US EPA. 2011. AP-42, Fifth Edition, Volume I, Chapter 13, Section 2, Subsection 1: Paved Roads. https://www.epa.gov/sites/default/files/2020-10/documents/13.2.1_paved_roads.pdf US EPA. 2006. AP-42, Fifth Edition, Volume I, Chapter 13, Section 2, Subsection 2: Unpaved Roads. https://www.epa.gov/sites/default/files/2020-10/documents/13.2.2_unpaved_roads.pdf US EPA. 1985. Guideline for Determination of Good Engineering Practice Stack Height (Technical Support Document for the Stack Height Regulations).
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https://www3.epa.gov/ttn/scram/guidance/guide/gep.pdf
US EPA. 2019. User’s Guide for the AMS/EPA Regulatory Model (AERMOD). EPA-454/B-19-027, April 2019. https://www3.epa.gov/ttn/scram/models/aermod/aermod_userguide.pdf Western Regional Air Partnership (WRAP). 2006. Fugitive Dust Handbook. https://www.env.nm.gov/wp-content/uploads/sites/2/2017/02/WRAP_FDHandbook_Rev_06.pdf 187
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APPENDIX A. FIGURES
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Figure A-1. Location Map
Figure A-2. Vicinity Map
Figure A-3. Building Downwash
Figure A-4. Cancer Risk Isopleths – Residential
Figure A-5. Chronic Hazard Isopleths- Residential
Figure A-6. Cancer Risk Isopleths – Worker
Figure A-7. Chronic Hazard Isopleths – Worker
Figure A-8. 8-HR Chronic Hazard Isopleths – Worker
Figure A-9. Acute Hazard Isopleths – Residential and Worker Figure A-10. Sensitive Receptors
189
Location Map
Project
Prepared By: Prepared For: Description
Date Figure
250501.0198 1
CalPortland Company
15390 Wonderland Blvd.

Redding, CA 96003 April 2026
CalPortland
Company
190
Vicinity Map
Project
Prepared By: Prepared For: Description
Date
2 Figure
250501.0198
CalPortland Company
15390 Wonderland Blvd.

Redding, CA 96003 April 2026
CalPortland
Company
191
BREEZE Downwash Analyst
Building Downwash
Project
Prepared By: Prepared For
: Description
Date
3 Figure
250501.0198
CalPortland Company
15390 Wonderland Blvd.

Redding, CA 96003 March 2026
192
Key
1 in a million
10 in a million
Facility Boundary
PMI = 23.35 in a million
MEIR = 9.92 in a million
Cancer Risk Isopleths - Residential
Project
Prepared By: Prepared For: Description
Date
4 Figure
250501.0198
CalPortland Company
15390 Wonderland Blvd
Redding, CA 96003 April 2026
193
Key

0.5 Facility Boundary
PMI = 0.30
MEIR = 0.14

1.0 Chronic Hazard Isopleths - Residential
Project
Prepared By: Prepared For: Description
Date
250501.0198 5
CalPortland Company
15390 Wonderland Blvd
Redding, CA 96003 April 2026
Figure
Chronic health risk contours are not presented as the estimated risk at all the modeled receptors is below 0.5 chance. 194
Key
1 in a million
10 in a million
Facility Boundary
MEIW = 0.84 in a million
Cancer Risk Isopleths - Worker
Project
Prepared By: Prepared For: Description
Date
6 Figure
250501.0198
CalPortland Company
15390 Wonderland Blvd
Redding, CA 96003 April 2026
Cancer risk contours are not presented as the estimated risk at all the modeled receptors is below 1 in a million chance. 195
Chronic Hazard Isopleths - Worker
Project
Prepared By: Prepared For: Description
Date
7 Figure
Key

0.5 Facility Boundary
MEIW = 0.11

1.0 250501.0198
CalPortland Company
15390 Wonderland Blvd
Redding, CA 96003 April 2026
Chronic health risk contours are not presented as the estimated risk at all the modeled receptors is below 0.5 chance. 196
8-HR Chronic Hazard Isopleths - Worker
Project
Prepared By: Prepared For: Description
Date
8 Figure
Key

0.5 Facility Boundary
MEIW = 0.02

1.0 250501.0198
CalPortland Company
15390 Wonderland Blvd
Redding, CA 96003 April 2026
Chronic health risk contours are not presented as the estimated risk at all the modeled receptors is below 0.5 chance. 197
Acute Hazard Isopleths
Project
Prepared By: Prepared For: Description
Date Figure
Key

0.5 Facility Boundary
PMI = 0.40
MEIR = 0.29

1.0 MEIW = 0.25
250501.0198
CalPortland Company
15390 Wonderland Blvd
Redding, CA 96003 April 2026 9
Acute health risk contours are not presented as the estimated risk at all the modeled receptors is below 0.5 chance. 198
Receptor ID
1462
Key
Facility Boundary
Sensitive
Receptors
Sensitive Receptors
Project
Prepared By: Prepared For: Description
Date
10 Figure
250501.0198
CalPortland Company
15390 Wonderland Blvd.

Redding, CA 96003 April 2026
Receptor ID
1463
Receptor ID
1464
199
CalPortland Company / Risk Reduction Audit and Plan
Trinity Consultants B-1
APPENDIX B. TABLES
200
Table ES-1. Comparison to 2020 HRA
CalPortland Company
Permit Number: 02‐VP‐07b
Risk Receptor X Y Risk Receptor X Y
PMI 59.67 530 557255 4509428 23.353 530 557255 4509428
MEIR 24.35 26 557214 4509122 9.917 26 557214 4509122
MEIW 2.07 26 557214 4509122 0.835 26 557214 4509122
PMI 0.74 530 557255 4509428 0.301 888 558755 4510928
MEIR 0.32 26 557214 4509122 0.136 26 557214 4509122
MEIW 0.26 26 557214 4509122 0.107 26 557214 4509122
8-Hour Chronic MEIW 0.04 26 557214 4509122 0.019 26 557214 4509122 PMI 2.32 602 557455 4509728 0.396 1054 558855 4511428
MEIR 1.88 6 557505 4509852 0.294 6 557505 4509852
MEIW 1.13 4 557591 4509818 0.248 4 557591 4509818

1. The cancer risk values are represented as the probability in a million.

Acute
Risk Category 2020 HRA Risk Reduction Plan HRA
Cancer
Chronic
201
Table 1. Summary of Health Risk Results
CalPortland Company
Permit Number: 02‐VP‐07b
Receptor Description Cancer Risk
in a Million
Cancer
Receptor ID
Chronic1
Hazard Index
Chronic
Receptor ID
Chronic 8-hr2
Hazard Index
Chronic 8hr
Receptor ID
Acute3
Hazard Index
Acute
Receptor ID
PMI (Point of Maximum Impact) 23.35 530 0.30 888 - - 0.40 1054 MEIR (Residence) 9.92 26 0.14 26 - - 0.29 6
MEIW (Worker) 0.83 26 0.11 26 0.02 26 0.25 4

1. Chronic hazard index for the PMI is presented for the central nervous system, because the central nervous system had the maximum chronic hazard index for the PMI.

Chronic hazard index for the MEIR and MEIW is presented for the respiratory system, because the respiratory system had the maximum chronic hazard index for the MEIR and MEIW.

2. Chronic 8-hr hazard index is presented for the central nervous system, because the central nervous system had the maximum chronic 8-hr hazard index.

3. Acute hazard index is presented for the immune system, because the immune system had the maximum acute hazard index. 202
Table 2a. Emission Rate by Substance and Source
CalPortland Company
Permit Number: 02‐VP‐07b
Stack ID Source ID Source Name Plant Area Substance Name CAS No. 1-hour Maximum (lb/hr)
1-Hour Maximum
(g/s)
Annual Average
(lb/yr)
Annual Average
(g/s)
r115 R-115 R-115 Drill Dust Collector (Insignificant) Quarries and Crushing Department Antimony 7440360 1.70E-07 2.14E-08 7.09E-05 1.02E-09 r115 R-115 R-115 Drill Dust Collector (Insignificant) Quarries and Crushing Department Arsenic 7440382 1.85E-06 2.33E-07 7.74E-04 1.11E-08 r115 R-115 R-115 Drill Dust Collector (Insignificant) Quarries and Crushing Department Barium 7440393 2.20E-05 2.77E-06 9.19E-03 1.32E-07 r115 R-115 R-115 Drill Dust Collector (Insignificant) Quarries and Crushing Department Beryllium 7440417 3.12E-08 3.94E-09 1.31E-05 1.88E-10 r115 R-115 R-115 Drill Dust Collector (Insignificant) Quarries and Crushing Department Cadmium 7440439 2.70E-07 3.40E-08 1.13E-04 1.62E-09 r115 R-115 R-115 Drill Dust Collector (Insignificant) Quarries and Crushing Department Chromium 7440473 2.51E-06 3.16E-07 1.05E-03 1.51E-08 r115 R-115 R-115 Drill Dust Collector (Insignificant) Quarries and Crushing Department Cobalt 7440484 1.23E-06 1.56E-07 5.16E-04 7.42E-09 r115 R-115 R-115 Drill Dust Collector (Insignificant) Quarries and Crushing Department Copper 7440508 9.26E-06 1.17E-06 3.87E-03 5.57E-08 r115 R-115 R-115 Drill Dust Collector (Insignificant) Quarries and Crushing Department Crystalline Silica 1175 3.86E-05 4.86E-06 1.61E-02 2.32E-07 r115 R-115 R-115 Drill Dust Collector (Insignificant) Quarries and Crushing Department Hexavalent Chromium 18540299 3.59E-07 4.52E-08 1.50E-04 2.16E-09 r115 R-115 R-115 Drill Dust Collector (Insignificant) Quarries and Crushing Department Lead 7439921 1.43E-06 1.80E-07 5.97E-04 8.58E-09 r115 R-115 R-115 Drill Dust Collector (Insignificant) Quarries and Crushing Department Manganese 7439965 2.31E-04 2.92E-05 9.67E-02 1.39E-06 r115 R-115 R-115 Drill Dust Collector (Insignificant) Quarries and Crushing Department Mercury 7439976 1.16E-08 1.46E-09 4.84E-06 6.96E-11 r115 R-115 R-115 Drill Dust Collector (Insignificant) Quarries and Crushing Department Nickel 7440020 3.39E-06 4.28E-07 1.42E-03 2.04E-08 r115 R-115 R-115 Drill Dust Collector (Insignificant) Quarries and Crushing Department Selenium 7782492 3.86E-07 4.86E-08 1.61E-04 2.32E-09 r115 R-115 R-115 Drill Dust Collector (Insignificant) Quarries and Crushing Department Silver 7440224 9.84E-09 1.24E-09 4.11E-06 5.91E-11 r115 R-115 R-115 Drill Dust Collector (Insignificant) Quarries and Crushing Department Thallium 7440280 2.85E-08 3.60E-09 1.19E-05 1.72E-10 r115 R-115 R-115 Drill Dust Collector (Insignificant) Quarries and Crushing Department Vanadium 7440622 1.08E-05 1.36E-06 4.51E-03 6.49E-08 r115 R-115 R-115 Drill Dust Collector (Insignificant) Quarries and Crushing Department Zinc 7440666 1.31E-05 1.65E-06 5.48E-03 7.88E-08 r115 R-115 R-115 Drill Dust Collector (Insignificant) Quarries and Crushing Department Acenaphthene 83329 1.45E-06 1.82E-07 6.04E-04 8.69E-09 r115 R-115 R-115 Drill Dust Collector (Insignificant) Quarries and Crushing Department Acenaphthylene 208968 5.15E-06 6.49E-07 2.15E-03 3.10E-08 r115 R-115 R-115 Drill Dust Collector (Insignificant) Quarries and Crushing Department Acetaldehyde 75070 7.81E-04 9.84E-05 3.26E-01 4.69E-06 r115 R-115 R-115 Drill Dust Collector (Insignificant) Quarries and Crushing Department Acrolein 107028 9.41E-05 1.19E-05 3.94E-02 5.66E-07 r115 R-115 R-115 Drill Dust Collector (Insignificant) Quarries and Crushing Department Anthracene 120127 1.90E-06 2.40E-07 7.96E-04 1.14E-08 r115 R-115 R-115 Drill Dust Collector (Insignificant) Quarries and Crushing Department Benzene 71432 9.50E-04 1.20E-04 3.97E-01 5.71E-06 r115 R-115 R-115 Drill Dust Collector (Insignificant) Quarries and Crushing Department Benzo(a)anthracene 56553 1.71E-06 2.15E-07 7.15E-04 1.03E-08 r115 R-115 R-115 Drill Dust Collector (Insignificant) Quarries and Crushing Department Benzo(a)pyrene 50328 1.91E-07 2.41E-08 8.00E-05 1.15E-09 r115 R-115 R-115 Drill Dust Collector (Insignificant) Quarries and Crushing Department Benzo(b)fluoranthene 205992 1.01E-07 1.27E-08 4.22E-05 6.06E-10 r115 R-115 R-115 Drill Dust Collector (Insignificant) Quarries and Crushing Department Benzo(g,h,i)perylene 191242 4.98E-07 6.27E-08 2.08E-04 2.99E-09 r115 R-115 R-115 Drill Dust Collector (Insignificant) Quarries and Crushing Department Benzo(k)fluoranthene 207089 1.58E-07 1.99E-08 6.59E-05 9.48E-10 r115 R-115 R-115 Drill Dust Collector (Insignificant) Quarries and Crushing Department 1,3-Butadiene 106990 3.98E-05 5.01E-06 1.66E-02 2.39E-07 r115 R-115 R-115 Drill Dust Collector (Insignificant) Quarries and Crushing Department Chrysene 218019 3.59E-07 4.53E-08 1.50E-04 2.16E-09 r115 R-115 R-115 Drill Dust Collector (Insignificant) Quarries and Crushing Department Dibenzo(a,h)anthracene 53703 5.93E-07 7.48E-08 2.48E-04 3.57E-09 r115 R-115 R-115 Drill Dust Collector (Insignificant) Quarries and Crushing Department Fluoranthene 206440 7.75E-06 9.76E-07 3.24E-03 4.66E-08 r115 R-115 R-115 Drill Dust Collector (Insignificant) Quarries and Crushing Department Fluorene 86737 2.97E-05 3.74E-06 1.24E-02 1.79E-07 r115 R-115 R-115 Drill Dust Collector (Insignificant) Quarries and Crushing Department Formaldehyde 50000 1.20E-03 1.51E-04 5.02E-01 7.22E-06 r115 R-115 R-115 Drill Dust Collector (Insignificant) Quarries and Crushing Department Indeno(1,2,3-cd)pyrene 193395 3.82E-07 4.81E-08 1.60E-04 2.29E-09 r115 R-115 R-115 Drill Dust Collector (Insignificant) Quarries and Crushing Department Naphthalene 91203 8.63E-05 1.09E-05 3.61E-02 5.19E-07 r115 R-115 R-115 Drill Dust Collector (Insignificant) Quarries and Crushing Department Phenanthrene 85018 2.99E-05 3.77E-06 1.25E-02 1.80E-07 r115 R-115 R-115 Drill Dust Collector (Insignificant) Quarries and Crushing Department Pyrene 129000 4.86E-06 6.13E-07 2.03E-03 2.92E-08 r115 R-115 R-115 Drill Dust Collector (Insignificant) Quarries and Crushing Department Toluene 108883 4.16E-04 5.24E-05 1.74E-01 2.50E-06 r115 R-115 R-115 Drill Dust Collector (Insignificant) Quarries and Crushing Department Xylenes 1330207 2.90E-04 3.65E-05 1.21E-01 1.74E-06 b13 B-13 Raise Shaft Sly Dust Collector Quarries and Crushing Department Antimony 7440360 2.26E-07 2.85E-08 2.97E-04 4.27E-09 b13 B-13 Raise Shaft Sly Dust Collector Quarries and Crushing Department Arsenic 7440382 2.47E-06 3.11E-07 3.24E-03 4.65E-08 b13 B-13 Raise Shaft Sly Dust Collector Quarries and Crushing Department Barium 7440393 2.93E-05 3.69E-06 3.84E-02 5.53E-07 b13 B-13 Raise Shaft Sly Dust Collector Quarries and Crushing Department Beryllium 7440417 4.17E-08 5.25E-09 5.46E-05 7.86E-10 b13 B-13 Raise Shaft Sly Dust Collector Quarries and Crushing Department Cadmium 7440439 3.60E-07 4.54E-08 4.72E-04 6.79E-09 b13 B-13 Raise Shaft Sly Dust Collector Quarries and Crushing Department Chromium 7440473 3.34E-06 4.21E-07 4.38E-03 6.30E-08 b13 B-13 Raise Shaft Sly Dust Collector Quarries and Crushing Department Cobalt 7440484 1.65E-06 2.07E-07 2.16E-03 3.10E-08 b13 B-13 Raise Shaft Sly Dust Collector Quarries and Crushing Department Copper 7440508 1.23E-05 1.56E-06 1.62E-02 2.33E-07 b13 B-13 Raise Shaft Sly Dust Collector Quarries and Crushing Department Crystalline Silica 1175 5.14E-05 6.48E-06 6.74E-02 9.70E-07 b13 B-13 Raise Shaft Sly Dust Collector Quarries and Crushing Department Hexavalent Chromium 18540299 4.78E-07 6.03E-08 6.27E-04 9.02E-09 b13 B-13 Raise Shaft Sly Dust Collector Quarries and Crushing Department Lead 7439921 1.90E-06 2.40E-07 2.49E-03 3.59E-08 b13 B-13 Raise Shaft Sly Dust Collector Quarries and Crushing Department Manganese 7439965 3.09E-04 3.89E-05 4.05E-01 5.82E-06 b13 B-13 Raise Shaft Sly Dust Collector Quarries and Crushing Department Mercury 7439976 1.54E-08 1.94E-09 2.02E-05 2.91E-10 b13 B-13 Raise Shaft Sly Dust Collector Quarries and Crushing Department Nickel 7440020 4.53E-06 5.70E-07 5.93E-03 8.53E-08 b13 B-13 Raise Shaft Sly Dust Collector Quarries and Crushing Department Selenium 7782492 5.14E-07 6.48E-08 6.74E-04 9.70E-09 b13 B-13 Raise Shaft Sly Dust Collector Quarries and Crushing Department Silver 7440224 1.31E-08 1.65E-09 1.72E-05 2.47E-10 b13 B-13 Raise Shaft Sly Dust Collector Quarries and Crushing Department Thallium 7440280 3.81E-08 4.80E-09 4.99E-05 7.18E-10 b13 B-13 Raise Shaft Sly Dust Collector Quarries and Crushing Department Vanadium 7440622 1.44E-05 1.81E-06 1.89E-02 2.72E-07 b13 B-13 Raise Shaft Sly Dust Collector Quarries and Crushing Department Zinc 7440666 1.75E-05 2.20E-06 2.29E-02 3.30E-07 b25 B-25 Limestone Belt Transfer Sly Dust Collector Quarries and Crushing Department Antimony 7440360 2.05E-07 2.58E-08 2.68E-04 3.86E-09 b25 B-25 Limestone Belt Transfer Sly Dust Collector Quarries and Crushing Department Arsenic 7440382 2.23E-06 2.81E-07 2.93E-03 4.21E-08 b25 B-25 Limestone Belt Transfer Sly Dust Collector Quarries and Crushing Department Barium 7440393 2.65E-05 3.34E-06 3.48E-02 5.00E-07 b25 B-25 Limestone Belt Transfer Sly Dust Collector Quarries and Crushing Department Beryllium 7440417 3.77E-08 4.75E-09 4.94E-05 7.11E-10 b25 B-25 Limestone Belt Transfer Sly Dust Collector Quarries and Crushing Department Cadmium 7440439 3.26E-07 4.11E-08 4.27E-04 6.14E-09 b25 B-25 Limestone Belt Transfer Sly Dust Collector Quarries and Crushing Department Chromium 7440473 3.03E-06 3.81E-07 3.97E-03 5.70E-08 b25 B-25 Limestone Belt Transfer Sly Dust Collector Quarries and Crushing Department Cobalt 7440484 1.49E-06 1.88E-07 1.95E-03 2.81E-08 b25 B-25 Limestone Belt Transfer Sly Dust Collector Quarries and Crushing Department Copper 7440508 1.12E-05 1.41E-06 1.46E-02 2.11E-07 b25 B-25 Limestone Belt Transfer Sly Dust Collector Quarries and Crushing Department Crystalline Silica 1175 4.65E-05 5.86E-06 6.10E-02 8.78E-07 b25 B-25 Limestone Belt Transfer Sly Dust Collector Quarries and Crushing Department Hexavalent Chromium 18540299 4.33E-07 5.45E-08 5.67E-04 8.16E-09 b25 B-25 Limestone Belt Transfer Sly Dust Collector Quarries and Crushing Department Lead 7439921 1.72E-06 2.17E-07 2.26E-03 3.25E-08 b25 B-25 Limestone Belt Transfer Sly Dust Collector Quarries and Crushing Department Manganese 7439965 2.79E-04 3.52E-05 3.66E-01 5.27E-06 b25 B-25 Limestone Belt Transfer Sly Dust Collector Quarries and Crushing Department Mercury 7439976 1.40E-08 1.76E-09 1.83E-05 2.63E-10 b25 B-25 Quarries and Crushing Department Nickel 7440020 4.10E-06 5.16E-07 5.37E-03 7.72E-08 b25 B-25 Quarries and Crushing Department Selenium 7782492 4.65E-07 5.86E-08 6.10E-04 8.78E-09 b25 B-25 Limestone Belt Transfer Sly Dust Collector Quarries and Crushing Department Silver 7440224 1.19E-08 1.50E-09 1.56E-05 2.24E-10 b25 B-25 Limestone Belt Transfer Sly Dust Collector Quarries and Crushing Department Thallium 7440280 3.44E-08 4.34E-09 4.52E-05 6.49E-10 b25 B-25 Limestone Belt Transfer Sly Dust Collector Quarries and Crushing Department Vanadium 7440622 1.30E-05 1.64E-06 1.71E-02 2.46E-07 b25 B-25 Limestone Belt Transfer Sly Dust Collector Quarries and Crushing Department Zinc 7440666 1.58E-05 1.99E-06 2.07E-02 2.98E-07 c34 C-34 Secondary Crusher BHA Model 505-4220 Dust Collector Quarries and Crushing Department Antimony 7440360 1.23E-06 1.55E-07 3.83E-03 5.51E-08 c34 C-34 Secondary Crusher BHA Model 505-4220 Dust Collector Quarries and Crushing Department Arsenic 7440382 1.34E-05 1.69E-06 4.18E-026.01E-07 c34 C-34 Secondary Crusher BHA Model 505-4220 Dust Collector Quarries and Crushing Department Barium 7440393 1.59E-04 2.00E-05 4.97E-01 7.14E-06 c34 C-34 Secondary Crusher BHA Model 505-4220 Dust Collector Quarries and Crushing Department Beryllium 7440417 2.26E-07 2.85E-08 7.06E-04 1.01E-08 c34 C-34 Secondary Crusher BHA Model 505-4220 Dust Collector Quarries and Crushing Department Cadmium 7440439 1.95E-06 2.46E-07 6.10E-038.77E-08 c34 C-34 Secondary Crusher BHA Model 505-4220 Dust Collector Quarries and Crushing Department Chromium 7440473 1.81E-05 2.28E-06 5.66E-02 8.14E-07 c34 C-34 Secondary Crusher BHA Model 505-4220 Dust Collector Quarries and Crushing Department Cobalt 7440484 8.93E-06 1.12E-06 2.79E-02 4.01E-07 c34 C-34 Secondary Crusher BHA Model 505-4220 Dust Collector Quarries and Crushing Department Copper 7440508 6.69E-05 8.43E-06 2.09E-01 3.01E-06 c34 C-34 Secondary Crusher BHA Model 505-4220 Dust Collector Quarries and Crushing Department Crystalline Silica 1175 2.79E-04 3.51E-05 8.71E-01 1.25E-05 c34 C-34 Secondary Crusher BHA Model 505-4220 Dust Collector Quarries and Crushing Department Hexavalent Chromium 18540299 2.59E-06 3.27E-07 8.10E-03 1.17E-07 c34 C-34 Secondary Crusher BHA Model 505-4220 Dust Collector Quarries and Crushing Department Lead 7439921 1.03E-05 1.30E-06 3.22E-02 4.64E-07 c34 C-34 Secondary Crusher BHA Model 505-4220 Dust Collector Quarries and Crushing Department Manganese 7439965 1.67E-03 2.11E-04 5.23E+00 7.52E-05 c34 C-34 Secondary Crusher BHA Model 505-4220 Dust Collector Quarries and Crushing Department Mercury 7439976 8.37E-08 1.05E-08 2.61E-043.76E-09 c34 C-34 Secondary Crusher BHA Model 505-4220 Dust Collector Quarries and Crushing Department Nickel 7440020 2.45E-05 3.09E-06 7.67E-02 1.10E-06 c34 C-34 Secondary Crusher BHA Model 505-4220 Dust Collector Quarries and Crushing Department Selenium 7782492 2.79E-06 3.51E-07 8.71E-03 1.25E-07 c34 C-34 Secondary Crusher BHA Model 505-4220 Dust Collector Quarries and Crushing Department Silver 7440224 7.11E-08 8.96E-09 2.22E-04 3.20E-09 c34 C-34 Secondary Crusher BHA Model 505-4220 Dust Collector Quarries and Crushing Department Thallium 7440280 2.06E-07 2.60E-08 6.45E-04 9.27E-09 c34 C-34 Secondary Crusher BHA Model 505-4220 Dust Collector Quarries and Crushing Department Vanadium 7440622 7.81E-05 9.84E-06 2.44E-01 3.51E-06 c34 C-34 Secondary Crusher BHA Model 505-4220 Dust Collector Quarries and Crushing Department Zinc 7440666 9.48E-05 1.19E-05 2.96E-01 4.26E-06 c36 C-36 Shale Crusher Sly Dust Collector Quarries and Crushing Department Antimony 7440360 5.08E-07 6.40E-08 2.49E-04 3.58E-09 Limestone Belt Transfer Sly Dust Collector
203
Table 2a. Emission Rate by Substance and Source
CalPortland Company
Permit Number: 02‐VP‐07b
Stack ID Source ID Source Name Plant Area Substance Name CAS No. 1-hour Maximum (lb/hr)
1-Hour Maximum
(g/s)
Annual Average
(lb/yr)
Annual Average
(g/s)
c36 C-36 Shale Crusher Sly Dust Collector Quarries and Crushing Department Arsenic 7440382 6.46E-06 8.15E-07 3.17E-03 4.55E-08 c36 C-36 Shale Crusher Sly Dust Collector Quarries and Crushing Department Barium 7440393 1.17E-04 1.47E-05 5.72E-02 8.22E-07 c36 C-36 Shale Crusher Sly Dust Collector Quarries and Crushing Department Beryllium 7440417 2.20E-07 2.77E-08 1.08E-04 1.55E-09 c36 C-36 Shale Crusher Sly Dust Collector Quarries and Crushing Department Cadmium 7440439 3.36E-07 4.23E-08 1.64E-04 2.36E-09 c36 C-36 Shale Crusher Sly Dust Collector Quarries and Crushing Department Chromium 7440473 2.93E-06 3.69E-07 1.43E-03 2.06E-08 c36 C-36 Shale Crusher Sly Dust Collector Quarries and Crushing Department Cobalt 7440484 1.84E-05 2.32E-06 9.02E-03 1.30E-07 c36 C-36 Shale Crusher Sly Dust Collector Quarries and Crushing Department Copper 7440508 2.59E-05 3.27E-06 1.27E-02 1.83E-07 c36 C-36 Shale Crusher Sly Dust Collector Quarries and Crushing Department Crystalline Silica 1175 1.27E-04 1.59E-05 6.20E-02 8.91E-07 c36 C-36 Shale Crusher Sly Dust Collector Quarries and Crushing Department Hexavalent Chromium 18540299 5.29E-07 6.66E-08 2.59E-04 3.72E-09 c36 C-36 Shale Crusher Sly Dust Collector Quarries and Crushing Department Lead 7439921 4.47E-06 5.63E-07 2.19E-03 3.15E-08 c36 C-36 Shale Crusher Sly Dust Collector Quarries and Crushing Department Manganese 7439965 7.00E-04 8.82E-05 3.43E-01 4.93E-06 c36 C-36 Shale Crusher Sly Dust Collector Quarries and Crushing Department Mercury 7439976 8.37E-08 1.06E-08 4.10E-05 5.90E-10 c36 C-36 Shale Crusher Sly Dust Collector Quarries and Crushing Department Nickel 7440020 3.92E-06 4.94E-07 1.92E-03 2.76E-08 c36 C-36 Shale Crusher Sly Dust Collector Quarries and Crushing Department Selenium 7782492 1.02E-06 1.29E-07 5.01E-04 7.20E-09 c36 C-36 Shale Crusher Sly Dust Collector Quarries and Crushing Department Silver 7440224 7.61E-07 9.59E-08 3.73E-04 5.36E-09 c36 C-36 Shale Crusher Sly Dust Collector Quarries and Crushing Department Thallium 7440280 1.92E-07 2.42E-08 9.41E-05 1.35E-09 c36 C-36 Shale Crusher Sly Dust Collector Quarries and Crushing Department Vanadium 7440622 8.92E-05 1.12E-05 4.37E-02 6.29E-07 c36 C-36 Shale Crusher Sly Dust Collector Quarries and Crushing Department Zinc 7440666 5.65E-05 7.12E-06 2.77E-02 3.98E-07 c38 C-38 Transfer Building Sly Dust Collector Quarries and Crushing Department Antimony 7440360 9.83E-08 1.24E-08 3.55E-04 5.11E-09 c38 C-38 Transfer Building Sly Dust Collector Quarries and Crushing Department Arsenic 7440382 2.53E-06 3.18E-07 9.13E-03 1.31E-07 c38 C-38 Transfer Building Sly Dust Collector Quarries and Crushing Department Barium 7440393 4.45E-05 5.60E-06 1.61E-01 2.31E-06 c38 C-38 Transfer Building Sly Dust Collector Quarries and Crushing Department Beryllium 7440417 4.68E-08 5.90E-09 1.69E-04 2.43E-09 c38 C-38 Transfer Building Sly Dust Collector Quarries and Crushing Department Cadmium 7440439 5.62E-07 7.08E-08 2.03E-03 2.92E-08 c38 C-38 Transfer Building Sly Dust Collector Quarries and Crushing Department Chromium 7440473 4.54E-06 5.72E-07 1.64E-02 2.36E-07 c38 C-38 Transfer Building Sly Dust Collector Quarries and Crushing Department Cobalt 7440484 2.15E-06 2.71E-07 7.78E-03 1.12E-07 c38 C-38 Transfer Building Sly Dust Collector Quarries and Crushing Department Copper 7440508 1.17E-05 1.47E-06 4.23E-02 6.08E-07 c38 C-38 Transfer Building Sly Dust Collector Quarries and Crushing Department Crystalline Silica 1175 6.13E-03 7.72E-04 2.21E+01 3.19E-04 c38 C-38 Transfer Building Sly Dust Collector Quarries and Crushing Department Hexavalent Chromium 18540299 4.02E-07 5.07E-08 1.45E-03 2.09E-08 c38 C-38 Transfer Building Sly Dust Collector Quarries and Crushing Department Lead 7439921 1.22E-06 1.53E-07 4.40E-03 6.32E-08 c38 C-38 Transfer Building Sly Dust Collector Quarries and Crushing Department Manganese 7439965 3.32E-04 4.19E-05 1.20E+00 1.73E-05 c38 C-38 Transfer Building Sly Dust Collector Quarries and Crushing Department Mercury 7439976 2.95E-07 3.71E-08 1.07E-03 1.53E-08 c38 C-38 Transfer Building Sly Dust Collector Quarries and Crushing Department Nickel 7440020 6.55E-06 8.26E-07 2.37E-02 3.40E-07 c38 C-38 Transfer Building Sly Dust Collector Quarries and Crushing Department Selenium 7782492 3.56E-07 4.48E-08 1.29E-03 1.85E-08 c38 C-38 Transfer Building Sly Dust Collector Quarries and Crushing Department Silver 7440224 5.15E-08 6.49E-09 1.86E-04 2.68E-09 204
Table 2a. Emission Rate by Substance and Source
CalPortland Company
Permit Number: 02‐VP‐07b
Stack ID Source ID Source Name Plant Area Substance Name CAS No. 1-hour Maximum (lb/hr)
1-Hour Maximum
(g/s)
Annual Average
(lb/yr)
Annual Average
(g/s)
c38 C-38 Transfer Building Sly Dust Collector Quarries and Crushing Department Thallium 7440280 8.89E-07 1.12E-07 3.21E-03 4.62E-08 c38 C-38 Transfer Building Sly Dust Collector Quarries and Crushing Department Vanadium 7440622 1.31E-05 1.65E-06 4.73E-02 6.81E-07 c38 C-38 Transfer Building Sly Dust Collector Quarries and Crushing Department Zinc 7440666 4.21E-05 5.31E-06 1.52E-01 2.19E-06 c160 C-160 C-164 Belt Dust Collector (Insignificant) Quarries and Crushing Department Antimony 7440360 2.52E-07 3.18E-08 7.87E-04 1.13E-08 c160 C-160 C-164 Belt Dust Collector (Insignificant) Quarries and Crushing Department Arsenic 7440382 6.48E-06 8.16E-07 2.02E-02 2.91E-07 c160 C-160 C-164 Belt Dust Collector (Insignificant) Quarries and Crushing Department Barium 7440393 1.14E-04 1.44E-05 3.56E-01 5.12E-06 c160 C-160 C-164 Belt Dust Collector (Insignificant) Quarries and Crushing Department Beryllium 7440417 1.20E-07 1.51E-08 3.75E-04 5.39E-09 c160 C-160 C-164 Belt Dust Collector (Insignificant) Quarries and Crushing Department Cadmium 7440439 1.44E-06 1.81E-07 4.50E-03 6.47E-08 c160 C-160 C-164 Belt Dust Collector (Insignificant) Quarries and Crushing Department Chromium 7440473 1.16E-05 1.47E-06 3.64E-02 5.23E-07 c160 C-160 C-164 Belt Dust Collector (Insignificant) Quarries and Crushing Department Cobalt 7440484 5.52E-06 6.96E-07 1.72E-02 2.48E-07 c160 C-160 C-164 Belt Dust Collector (Insignificant) Quarries and Crushing Department Copper 7440508 3.00E-05 3.78E-06 9.37E-02 1.35E-06 c160 C-160 C-164 Belt Dust Collector (Insignificant) Quarries and Crushing Department Crystalline Silica 1175 1.57E-02 1.98E-03 4.91E+01 7.06E-04 c160 C-160 C-164 Belt Dust Collector (Insignificant) Quarries and Crushing Department Hexavalent Chromium 18540299 1.03E-06 1.30E-07 3.22E-03 4.64E-08 c160 C-160 C-164 Belt Dust Collector (Insignificant) Quarries and Crushing Department Lead 7439921 3.12E-06 3.93E-07 9.74E-03 1.40E-07 c160 C-160 C-164 Belt Dust Collector (Insignificant) Quarries and Crushing Department Manganese 7439965 8.52E-04 1.07E-04 2.66E+00 3.83E-05 c160 C-160 C-164 Belt Dust Collector (Insignificant) Quarries and Crushing Department Mercury 7439976 7.56E-07 9.53E-08 2.36E-03 3.40E-08 c160 C-160 C-164 Belt Dust Collector (Insignificant) Quarries and Crushing Department Nickel 7440020 1.68E-05 2.12E-06 5.25E-02 7.55E-07 c160 C-160 C-164 Belt Dust Collector (Insignificant) Quarries and Crushing Department Selenium 7782492 9.12E-07 1.15E-07 2.85E-03 4.10E-08 c160 C-160 C-164 Belt Dust Collector (Insignificant) Quarries and Crushing Department Silver 7440224 1.32E-07 1.66E-08 4.12E-04 5.93E-09 c160 C-160 C-164 Belt Dust Collector (Insignificant) Quarries and Crushing Department Thallium 7440280 2.28E-06 2.87E-07 7.12E-03 1.02E-07 c160 C-160 C-164 Belt Dust Collector (Insignificant) Quarries and Crushing Department Vanadium 7440622 3.36E-05 4.23E-06 1.05E-01 1.51E-06 c160 C-160 C-164 Belt Dust Collector (Insignificant) Quarries and Crushing Department Zinc 7440666 1.08E-04 1.36E-05 3.37E-01 4.85E-06 c172 C-1721 Raw Mix Tanks Dust Collector Raw Milling and Kiln Department Antimony 7440360 9.45E-08 1.19E-08 5.08E-04 7.31E-09 c172 C-1721 Raw Mix Tanks Dust Collector Raw Milling and Kiln Department Arsenic 7440382 2.43E-06 3.06E-07 1.31E-02 1.88E-07 c172 C-1721 Raw Mix Tanks Dust Collector Raw Milling and Kiln Department Barium 7440393 4.28E-05 5.39E-06 2.30E-01 3.31E-06 c172 C-1721 Raw Mix Tanks Dust Collector Raw Milling and Kiln Department Beryllium 7440417 4.50E-08 5.67E-09 2.42E-04 3.48E-09 c172 C-1721 Raw Mix Tanks Dust Collector Raw Milling and Kiln Department Cadmium 7440439 5.40E-07 6.80E-08 2.90E-03 4.18E-08 c172 C-1721 Raw Mix Tanks Dust Collector Raw Milling and Kiln Department Chromium 7440473 4.37E-06 5.50E-07 2.35E-02 3.38E-07 c172 C-1721 Raw Mix Tanks Dust Collector Raw Milling and Kiln Department Cobalt 7440484 2.07E-06 2.61E-07 1.11E-02 1.60E-07 c172 C-1721 Raw Mix Tanks Dust Collector Raw Milling and Kiln Department Copper 7440508 1.13E-05 1.42E-06 6.05E-02 8.70E-07 c172 C-1721 Raw Mix Tanks Dust Collector Raw Milling and Kiln Department Crystalline Silica 1175 5.90E-03 7.43E-04 3.17E+01 4.56E-04 c172 C-1721 Raw Mix Tanks Dust Collector Raw Milling and Kiln Department Hexavalent Chromium 18540299 3.87E-07 4.88E-08 2.08E-03 2.99E-08 c172 C-1721 Raw Mix Tanks Dust Collector Raw Milling and Kiln Department Lead 7439921 1.17E-06 1.47E-07 6.29E-03 9.05E-08 c172 C-1721 Raw Mix Tanks Dust Collector Raw Milling and Kiln Department Manganese 7439965 3.20E-04 4.03E-05 1.72E+00 2.47E-05 c172 C-1721 Raw Mix Tanks Dust Collector Raw Milling and Kiln Department Mercury 7439976 2.84E-07 3.57E-08 1.52E-03 2.19E-08 c172 C-1721 Raw Mix Tanks Dust Collector Raw Milling and Kiln Department Nickel 7440020 6.30E-06 7.94E-07 3.39E-02 4.87E-07 c172 C-1721 Raw Mix Tanks Dust Collector Raw Milling and Kiln Department Selenium 7782492 3.42E-07 4.31E-08 1.84E-03 2.64E-08 c172 C-1721 Raw Mix Tanks Dust Collector Raw Milling and Kiln Department Silver 7440224 4.95E-08 6.24E-09 2.66E-04 3.83E-09 c172 C-1721 Raw Mix Tanks Dust Collector Raw Milling and Kiln Department Thallium 7440280 8.55E-07 1.08E-07 4.60E-03 6.61E-08 c172 C-1721 Raw Mix Tanks Dust Collector Raw Milling and Kiln Department Vanadium 7440622 1.26E-05 1.59E-06 6.77E-02 9.74E-07 c172 C-1721 Raw Mix Tanks Dust Collector Raw Milling and Kiln Department Zinc 7440666 4.05E-05 5.10E-06 2.18E-01 3.13E-06 f173 F-1731 Blending Silos Dust Collector Raw Milling and Kiln Department Antimony 7440360 2.66E-07 3.35E-08 1.63E-03 2.34E-08 f173 F-1731 Blending Silos Dust Collector Raw Milling and Kiln Department Arsenic 7440382 6.84E-06 8.62E-07 4.19E-02 6.02E-07 f173 F-1731 Blending Silos Dust Collector Raw Milling and Kiln Department Barium 7440393 1.20E-04 1.52E-05 7.37E-01 1.06E-05 f173 F-1731 Blending Silos Dust Collector Raw Milling and Kiln Department Beryllium 7440417 1.27E-07 1.60E-08 7.75E-04 1.12E-08 f173 F-1731 Blending Silos Dust Collector Raw Milling and Kiln Department Cadmium 7440439 1.52E-06 1.91E-07 9.30E-03 1.34E-07 f173 F-1731 Blending Silos Dust Collector Raw Milling and Kiln Department Chromium 7440473 1.23E-05 1.55E-06 7.52E-02 1.08E-06 f173 F-1731 Blending Silos Dust Collector Raw Milling and Kiln Department Cobalt 7440484 5.83E-06 7.34E-07 3.57E-02 5.13E-07 f173 F-1731 Blending Silos Dust Collector Raw Milling and Kiln Department Copper 7440508 3.17E-05 3.99E-06 1.94E-01 2.79E-06 f173 F-1731 Blending Silos Dust Collector Raw Milling and Kiln Department Crystalline Silica 1175 1.66E-02 2.09E-03 1.02E+02 1.46E-03 f173 F-1731 Blending Silos Dust Collector Raw Milling and Kiln Department Hexavalent Chromium 18540299 1.09E-06 1.37E-07 6.67E-03 9.59E-08 f173 F-1731 Blending Silos Dust Collector Raw Milling and Kiln Department Lead 7439921 3.29E-06 4.15E-07 2.02E-02 2.90E-07 f173 F-1731 Blending Silos Dust Collector Raw Milling and Kiln Department Manganese 7439965 8.99E-04 1.13E-04 5.50E+00 7.92E-05 f173 F-1731 Blending Silos Dust Collector Raw Milling and Kiln Department Mercury 7439976 7.98E-07 1.01E-07 4.88E-03 7.03E-08 f173 F-1731 Blending Silos Dust Collector Raw Milling and Kiln Department Nickel 7440020 1.77E-05 2.23E-06 1.09E-01 1.56E-06 f173 F-1731 Blending Silos Dust Collector Raw Milling and Kiln Department Selenium 7782492 9.62E-07 1.21E-07 5.89E-03 8.48E-08 f173 F-1731 Blending Silos Dust Collector Raw Milling and Kiln Department Silver 7440224 1.39E-07 1.76E-08 8.53E-04 1.23E-08 f173 F-1731 Blending Silos Dust Collector Raw Milling and Kiln Department Thallium 7440280 2.41E-06 3.03E-07 1.47E-02 2.12E-07 f173 F-1731 Blending Silos Dust Collector Raw Milling and Kiln Department Vanadium 7440622 3.55E-05 4.47E-06 2.17E-01 3.12E-06 f173 F-1731 Blending Silos Dust Collector Raw Milling and Kiln Department Zinc 7440666 1.14E-04 1.44E-05 6.98E-01 1.00E-05 f184 F-1841 Raw Storage Silo Dust Collector Raw Milling and Kiln Department Antimony 7440360 1.81E-07 2.28E-08 1.11E-03 1.59E-08 f184 F-1841 Raw Storage Silo Dust Collector Raw Milling and Kiln Department Arsenic 7440382 4.65E-06 5.86E-07 2.85E-02 4.10E-07 f184 F-1841 Raw Storage Silo Dust Collector Raw Milling and Kiln Department Barium 7440393 8.18E-05 1.03E-05 5.01E-01 7.21E-06 f184 F-1841 Raw Storage Silo Dust Collector Raw Milling and Kiln Department Beryllium 7440417 8.61E-08 1.09E-08 5.27E-04 7.59E-09 f184 F-1841 Raw Storage Silo Dust Collector Raw Milling and Kiln Department Cadmium 7440439 1.03E-06 1.30E-07 6.33E-03 9.10E-08 f184 F-1841 Raw Storage Silo Dust Collector Raw Milling and Kiln Department Chromium 7440473 8.36E-06 1.05E-06 5.12E-02 7.36E-07 f184 F-1841 Raw Storage Silo Dust Collector Raw Milling and Kiln Department Cobalt 7440484 3.96E-06 4.99E-07 2.43E-02 3.49E-07 f184 F-1841 Raw Storage Silo Dust Collector Raw Milling and Kiln Department Copper 7440508 2.15E-05 2.71E-06 1.32E-01 1.90E-06 f184 F-1841 Raw Storage Silo Dust Collector Raw Milling and Kiln Department Crystalline Silica 1175 1.13E-02 1.42E-03 6.91E+01 9.94E-04 f184 F-1841 Raw Storage Silo Dust Collector Raw Milling and Kiln Department Hexavalent Chromium 18540299 7.41E-07 9.33E-08 4.54E-03 6.52E-08 f184 F-1841 Raw Storage Silo Dust Collector Raw Milling and Kiln Department Lead 7439921 2.24E-06 2.82E-07 1.37E-02 1.97E-07 f184 F-1841 Raw Storage Silo Dust Collector Raw Milling and Kiln Department Manganese 7439965 6.12E-04 7.71E-05 3.74E+00 5.39E-05 f184 F-1841 Raw Storage Silo Dust Collector Raw Milling and Kiln Department Mercury 7439976 5.43E-07 6.84E-08 3.32E-03 4.78E-08 f184 F-1841 Raw Storage Silo Dust Collector Raw Milling and Kiln Department Nickel 7440020 1.21E-05 1.52E-06 7.38E-02 1.06E-06 f184 F-1841 Raw Storage Silo Dust Collector Raw Milling and Kiln Department Selenium 7782492 6.55E-07 8.25E-08 4.01E-03 5.76E-08 f184 F-1841 Raw Storage Silo Dust Collector Raw Milling and Kiln Department Silver 7440224 9.48E-08 1.19E-08 5.80E-04 8.34E-09 f184 F-1841 Raw Storage Silo Dust Collector Raw Milling and Kiln Department Thallium 7440280 1.64E-06 2.06E-07 1.00E-02 1.44E-07 f184 F-1841 Raw Storage Silo Dust Collector Raw Milling and Kiln Department Vanadium 7440622 2.41E-05 3.04E-06 1.48E-01 2.12E-06 f184 F-1841 Raw Storage Silo Dust Collector Raw Milling and Kiln Department Zinc 7440666 7.75E-05 9.77E-06 4.75E-01 6.83E-06 f350 F-3501 Pre-Heater Kiln Feed Bin Dust Collector Raw Milling and Kiln Department Antimony 7440360 3.51E-07 4.42E-08 2.32E-03 3.34E-08 f350 F-3501 Pre-Heater Kiln Feed Bin Dust Collector Raw Milling and Kiln Department Arsenic 7440382 9.03E-06 1.14E-06 5.97E-02 8.58E-07 f350 F-3501 Pre-Heater Kiln Feed Bin Dust Collector Raw Milling and Kiln Department Barium 7440393 1.59E-04 2.00E-05 1.05E+00 1.51E-05 f350 F-3501 Pre-Heater Kiln Feed Bin Dust Collector Raw Milling and Kiln Department Beryllium 7440417 1.67E-07 2.11E-08 1.10E-03 1.59E-08 f350 F-3501 Pre-Heater Kiln Feed Bin Dust Collector Raw Milling and Kiln Department Cadmium 7440439 2.01E-06 2.53E-07 1.33E-02 1.91E-07 f350 F-3501 Pre-Heater Kiln Feed Bin Dust Collector Raw Milling and Kiln Department Chromium 7440473 1.62E-05 2.04E-06 1.07E-01 1.54E-06 f350 F-3501 Pre-Heater Kiln Feed Bin Dust Collector Raw Milling and Kiln Department Cobalt 7440484 7.69E-06 9.69E-07 5.08E-02 7.31E-07 f350 F-3501 Pre-Heater Kiln Feed Bin Dust Collector Raw Milling and Kiln Department Copper 7440508 4.18E-05 5.26E-06 2.76E-01 3.97E-06 f350 F-3501 Pre-Heater Kiln Feed Bin Dust Collector Raw Milling and Kiln Department Crystalline Silica 1175 2.19E-02 2.76E-03 1.45E+02 2.08E-03 f350 F-3501 Pre-Heater Kiln Feed Bin Dust Collector Raw Milling and Kiln Department Hexavalent Chromium 18540299 1.44E-06 1.81E-07 9.50E-03 1.37E-07 f350 F-3501 Pre-Heater Kiln Feed Bin Dust Collector Raw Milling and Kiln Department Lead 7439921 4.35E-06 5.48E-07 2.87E-02 4.13E-07 f350 F-3501 Pre-Heater Kiln Feed Bin Dust Collector Raw Milling and Kiln Department Manganese 7439965 1.19E-03 1.50E-04 7.84E+00 1.13E-04 f350 F-3501 Pre-Heater Kiln Feed Bin Dust Collector Raw Milling and Kiln Department Mercury 7439976 1.05E-06 1.33E-07 6.96E-03 1.00E-07 f350 F-3501 Pre-Heater Kiln Feed Bin Dust Collector Raw Milling and Kiln Department Nickel 7440020 2.34E-05 2.95E-06 1.55E-01 2.22E-06 f350 F-3501 Pre-Heater Kiln Feed Bin Dust Collector Raw Milling and Kiln Department Selenium 7782492 1.27E-06 1.60E-07 8.40E-03 1.21E-07 f350 F-3501 Pre-Heater Kiln Feed Bin Dust Collector Raw Milling and Kiln Department Silver 7440224 1.84E-07 2.32E-08 1.22E-03 1.75E-08 f350 F-3501 Pre-Heater Kiln Feed Bin Dust Collector Raw Milling and Kiln Department Thallium 7440280 3.18E-06 4.00E-07 2.10E-02 3.02E-07 f350 F-3501 Pre-Heater Kiln Feed Bin Dust Collector Raw Milling and Kiln Department Vanadium 7440622 4.68E-05 5.90E-06 3.09E-01 4.45E-06 f350 F-3501 Pre-Heater Kiln Feed Bin Dust Collector Raw Milling and Kiln Department Zinc 7440666 1.50E-04 1.90E-05 9.94E-01 1.43E-05 g206 G-2061 Coal Silo Dust Collector Raw Milling and Kiln Department Antimony 7440360 3.86E-08 4.86E-09 2.35E-04 3.37E-09 g206 G-2061 Coal Silo Dust Collector Raw Milling and Kiln Department Arsenic 7440382 4.63E-07 5.83E-08 2.82E-03 4.05E-08 g206 G-2061 Coal Silo Dust Collector Raw Milling and Kiln Department Barium 7440393 2.42E-05 3.05E-06 1.47E-01 2.11E-06 g206 G-2061 Coal Silo Dust Collector Raw Milling and Kiln Department Beryllium 7440417 4.11E-08 5.18E-09 2.50E-04 3.60E-09 g206 G-2061 Coal Silo Dust Collector Raw Milling and Kiln Department Cadmium 7440439 6.17E-09 7.78E-10 3.75E-05 5.40E-10 g206 G-2061 Coal Silo Dust Collector Raw Milling and Kiln Department Chromium 7440473 2.01E-06 2.53E-07 1.22E-02 1.75E-07 g206 G-2061 Coal Silo Dust Collector Raw Milling and Kiln Department Cobalt 7440484 6.43E-06 8.10E-07 3.91E-02 5.62E-07 g206 G-2061 Coal Silo Dust Collector Raw Milling and Kiln Department Copper 7440508 1.11E-06 1.39E-07 6.73E-03 9.67E-08 g206 G-2061 Coal Silo Dust Collector Raw Milling and Kiln Department Crystalline Silica 1175 2.31E-04 2.92E-05 1.41E+00 2.02E-05 g206 G-2061 Coal Silo Dust Collector Raw Milling and Kiln Department Hexavalent Chromium 18540299 2.29E-07 2.88E-08 1.39E-03 2.00E-08 g206 G-2061 Coal Silo Dust Collector Raw Milling and Kiln Department Lead 7439921 3.09E-07 3.89E-08 1.88E-03 2.70E-08 g206 G-2061 Coal Silo Dust Collector Raw Milling and Kiln Department Manganese 7439965 2.83E-05 3.56E-06 1.72E-01 2.47E-06 g206 G-2061 Coal Silo Dust Collector Raw Milling and Kiln Department Mercury 7439976 1.90E-08 2.40E-09 1.16E-04 1.66E-09 g206 G-2061 Coal Silo Dust Collector Raw Milling and Kiln Department Nickel 7440020 4.89E-04 6.16E-05 2.97E+00 4.27E-05 g206 G-2061 Coal Silo Dust Collector Raw Milling and Kiln Department Selenium 7782492 3.34E-07 4.21E-08 2.03E-03 2.92E-08 g206 G-2061 Coal Silo Dust Collector Raw Milling and Kiln Department Silver 7440224 6.56E-09 8.26E-10 3.99E-05 5.74E-10 g206 G-2061 Coal Silo Dust Collector Raw Milling and Kiln Department Thallium 7440280 1.98E-08 2.49E-09 1.20E-04 1.73E-09 g206 G-2061 Coal Silo Dust Collector Raw Milling and Kiln Department Vanadium 7440622 1.05E-03 1.33E-04 6.41E+00 9.22E-05 g206 G-2061 Coal Silo Dust Collector Raw Milling and Kiln Department Zinc 7440666 7.46E-06 9.40E-07 4.54E-02 6.52E-07 g4181 G-418-11 Clinker Handling Dust Collector Raw Milling and Kiln Department Antimony 7440360 8.87E-08 1.12E-08 5.23E-04 7.53E-09 205
Table 2a. Emission Rate by Substance and Source
CalPortland Company
Permit Number: 02‐VP‐07b
Stack ID Source ID Source Name Plant Area Substance Name CAS No. 1-hour Maximum (lb/hr)
1-Hour Maximum
(g/s)
Annual Average
(lb/yr)
Annual Average
(g/s)
g4181 G-418-11 Clinker Handling Dust Collector Raw Milling and Kiln Department Arsenic 7440382 2.82E-06 3.55E-07 1.66E-02 2.39E-07 g4181 G-418-11 Clinker Handling Dust Collector Raw Milling and Kiln Department Barium 7440393 1.00E-04 1.26E-05 5.92E-01 8.51E-06 g4181 G-418-11 Clinker Handling Dust Collector Raw Milling and Kiln Department Beryllium 7440417 8.49E-08 1.07E-08 5.01E-04 7.20E-09 g4181 G-418-11 Clinker Handling Dust Collector Raw Milling and Kiln Department Cadmium 7440439 6.17E-07 7.78E-08 3.64E-03 5.24E-08 g4181 G-418-11 Clinker Handling Dust Collector Raw Milling and Kiln Department Chromium 7440473 1.23E-05 1.56E-06 7.28E-02 1.05E-06 g4181 G-418-11 Clinker Handling Dust Collector Raw Milling and Kiln Department Cobalt 7440484 3.82E-06 4.81E-07 2.25E-02 3.24E-07 g4181 G-418-11 Clinker Handling Dust Collector Raw Milling and Kiln Department Copper 7440508 2.01E-05 2.53E-06 1.18E-01 1.70E-06 g4181 G-418-11 Clinker Handling Dust Collector Raw Milling and Kiln Department Crystalline Silica 1175 3.86E-05 4.86E-06 2.28E-01 3.27E-06 g4181 G-418-11 Clinker Handling Dust Collector Raw Milling and Kiln Department Hexavalent Chromium 18540299 2.85E-06 3.60E-07 1.68E-02 2.42E-07 g4181 G-418-11 Clinker Handling Dust Collector Raw Milling and Kiln Department Lead 7439921 2.51E-06 3.16E-07 1.48E-02 2.13E-07 g4181 G-418-11 Clinker Handling Dust Collector Raw Milling and Kiln Department Manganese 7439965 5.40E-04 6.80E-05 3.19E+00 4.58E-05 g4181 G-418-11 Clinker Handling Dust Collector Raw Milling and Kiln Department Mercury 7439976 4.05E-09 5.10E-10 2.39E-05 3.44E-10 g4181 G-418-11 Clinker Handling Dust Collector Raw Milling and Kiln Department Nickel 7440020 1.70E-05 2.14E-06 1.00E-01 1.44E-06 g4181 G-418-11 Clinker Handling Dust Collector Raw Milling and Kiln Department Selenium 7782492 6.17E-07 7.78E-08 3.64E-03 5.24E-08 g4181 G-418-11 Clinker Handling Dust Collector Raw Milling and Kiln Department Silver 7440224 8.49E-08 1.07E-08 5.01E-04 7.20E-09 g4181 G-418-11 Clinker Handling Dust Collector Raw Milling and Kiln Department Thallium 7440280 9.45E-09 1.19E-09 5.57E-05 8.02E-10 g4181 G-418-11 Clinker Handling Dust Collector Raw Milling and Kiln Department Vanadium 7440622 4.63E-05 5.83E-06 2.73E-01 3.93E-06 g4181 G-418-11 Clinker Handling Dust Collector Raw Milling and Kiln Department Zinc 7440666 1.27E-04 1.60E-05 7.51E-01 1.08E-05 g425 G-4251 Deep Bucket Conveyor Dust Collector Raw Milling and Kiln Department Antimony 7440360 8.87E-08 1.12E-08 1.62E-04 2.33E-09 g425 G-4251 Deep Bucket Conveyor Dust Collector Raw Milling and Kiln Department Arsenic 7440382 2.82E-06 3.55E-07 5.15E-03 7.40E-08 g425 G-4251 Deep Bucket Conveyor Dust Collector Raw Milling and Kiln Department Barium 7440393 1.00E-04 1.26E-05 1.83E-01 2.64E-06 g425 G-4251 Deep Bucket Conveyor Dust Collector Raw Milling and Kiln Department Beryllium 7440417 8.49E-08 1.07E-08 1.55E-04 2.23E-09 g425 G-4251 Deep Bucket Conveyor Dust Collector Raw Milling and Kiln Department Cadmium 7440439 6.17E-07 7.78E-08 1.13E-03 1.62E-08 g425 G-4251 Deep Bucket Conveyor Dust Collector Raw Milling and Kiln Department Chromium 7440473 1.23E-05 1.56E-06 2.26E-02 3.25E-07 g425 G-4251 Deep Bucket Conveyor Dust Collector Raw Milling and Kiln Department Cobalt 7440484 3.82E-06 4.81E-07 6.98E-03 1.00E-07 g425 G-4251 Deep Bucket Conveyor Dust Collector Raw Milling and Kiln Department Copper 7440508 2.01E-05 2.53E-06 3.67E-02 5.27E-07 g425 G-4251 Deep Bucket Conveyor Dust Collector Raw Milling and Kiln Department Crystalline Silica 1175 3.86E-05 4.86E-06 7.05E-02 1.01E-06 g425 G-4251 Deep Bucket Conveyor Dust Collector Raw Milling and Kiln Department Hexavalent Chromium 18540299 2.85E-06 3.60E-07 5.22E-03 7.50E-08 g425 G-4251 Deep Bucket Conveyor Dust Collector Raw Milling and Kiln Department Lead 7439921 2.51E-06 3.16E-07 4.58E-03 6.59E-08 g425 G-4251 Deep Bucket Conveyor Dust Collector Raw Milling and Kiln Department Manganese 7439965 5.40E-04 6.80E-05 9.87E-01 1.42E-05 g425 G-4251 Deep Bucket Conveyor Dust Collector Raw Milling and Kiln Department Mercury 7439976 4.05E-09 5.10E-10 7.40E-06 1.06E-10 g425 G-4251 Deep Bucket Conveyor Dust Collector Raw Milling and Kiln Department Nickel 7440020 1.70E-05 2.14E-06 3.10E-02 4.46E-07 g425 G-4251 Deep Bucket Conveyor Dust Collector Raw Milling and Kiln Department Selenium 7782492 6.17E-07 7.78E-08 1.13E-03 1.62E-08 g425 G-4251 Deep Bucket Conveyor Dust Collector Raw Milling and Kiln Department Silver 7440224 8.49E-08 1.07E-08 1.55E-04 2.23E-09 g425 G-4251 Deep Bucket Conveyor Dust Collector Raw Milling and Kiln Department Thallium 7440280 9.45E-09 1.19E-09 1.73E-05 2.48E-10 g425 G-4251 Deep Bucket Conveyor Dust Collector Raw Milling and Kiln Department Vanadium 7440622 4.63E-05 5.83E-06 8.46E-02 1.22E-06 g425 G-4251 Deep Bucket Conveyor Dust Collector Raw Milling and Kiln Department Zinc 7440666 1.27E-04 1.60E-05 2.33E-01 3.35E-06 g465 G-4651 Indirect Coal Firing System Dust Collector Raw Milling and Kiln Department Antimony 7440360 1.51E-07 1.90E-08 1.02E-03 1.47E-08 g465 G-4651 Indirect Coal Firing System Dust Collector Raw Milling and Kiln Department Arsenic 7440382 1.81E-06 2.28E-07 1.22E-02 1.76E-07 g465 G-4651 Indirect Coal Firing System Dust Collector Raw Milling and Kiln Department Barium 7440393 9.47E-05 1.19E-05 6.39E-01 9.20E-06 g465 G-4651 Indirect Coal Firing System Dust Collector Raw Milling and Kiln Department Beryllium 7440417 1.61E-07 2.03E-08 1.09E-03 1.57E-08 g465 G-4651 Indirect Coal Firing System Dust Collector Raw Milling and Kiln Department Cadmium 7440439 2.42E-08 3.05E-09 1.63E-04 2.35E-09 g465 G-4651 Indirect Coal Firing System Dust Collector Raw Milling and Kiln Department Chromium 7440473 7.86E-06 9.90E-07 5.30E-02 7.63E-07 g465 G-4651 Indirect Coal Firing System Dust Collector Raw Milling and Kiln Department Cobalt 7440484 2.52E-05 3.17E-06 1.70E-01 2.45E-06 g465 G-4651 Indirect Coal Firing System Dust Collector Raw Milling and Kiln Department Copper 7440508 4.33E-06 5.46E-07 2.92E-02 4.21E-07 g465 G-4651 Indirect Coal Firing System Dust Collector Raw Milling and Kiln Department Crystalline Silica 1175 9.06E-04 1.14E-04 6.12E+00 8.80E-05 g465 G-4651 Indirect Coal Firing System Dust Collector Raw Milling and Kiln Department Hexavalent Chromium 18540299 8.96E-07 1.13E-07 6.05E-03 8.71E-08 g465 G-4651 Indirect Coal Firing System Dust Collector Raw Milling and Kiln Department Lead 7439921 1.21E-06 1.52E-07 8.16E-03 1.17E-07 g465 G-4651 Indirect Coal Firing System Dust Collector Raw Milling and Kiln Department Manganese 7439965 1.11E-04 1.40E-05 7.48E-01 1.08E-05 g465 G-4651 Indirect Coal Firing System Dust Collector Raw Milling and Kiln Department Mercury 7439976 7.45E-08 9.39E-09 5.03E-04 7.24E-09 g465 G-4651 Indirect Coal Firing System Dust Collector Raw Milling and Kiln Department Nickel 7440020 1.91E-03 2.41E-04 1.29E+01 1.86E-04 g465 G-4651 Indirect Coal Firing System Dust Collector Raw Milling and Kiln Department Selenium 7782492 1.31E-06 1.65E-07 8.84E-03 1.27E-07 g465 G-4651 Indirect Coal Firing System Dust Collector Raw Milling and Kiln Department Silver 7440224 2.57E-08 3.24E-09 1.73E-04 2.49E-09 g465 G-4651 Indirect Coal Firing System Dust Collector Raw Milling and Kiln Department Thallium 7440280 7.76E-08 9.77E-09 5.24E-04 7.53E-09 g465 G-4651 Indirect Coal Firing System Dust Collector Raw Milling and Kiln Department Vanadium 7440622 4.13E-03 5.20E-04 2.79E+01 4.01E-04 g465 G-4651 Indirect Coal Firing System Dust Collector Raw Milling and Kiln Department Zinc 7440666 2.92E-05 3.68E-06 1.97E-01 2.84E-06 s210 S-2101 Roller Mill Rock Feeders Dust Collector Raw Milling and Kiln Department Antimony 7440360 5.14E-08 6.48E-09 2.76E-04 3.98E-09 s210 S-2101 Roller Mill Rock Feeders Dust Collector Raw Milling and Kiln Department Arsenic 7440382 2.83E-06 3.56E-07 1.52E-02 2.19E-07 s210 S-2101 Roller Mill Rock Feeders Dust Collector Raw Milling and Kiln Department Barium 7440393 5.66E-05 7.13E-06 3.04E-01 4.37E-06 s210 S-2101 Roller Mill Rock Feeders Dust Collector Raw Milling and Kiln Department Beryllium 7440417 5.66E-08 7.13E-09 3.04E-04 4.37E-09 s210 S-2101 Roller Mill Rock Feeders Dust Collector Raw Milling and Kiln Department Cadmium 7440439 3.34E-07 4.21E-08 1.80E-03 2.58E-08 s210 S-2101 Roller Mill Rock Feeders Dust Collector Raw Milling and Kiln Department Chromium 7440473 1.08E-05 1.36E-06 5.81E-02 8.35E-07 s210 S-2101 Roller Mill Rock Feeders Dust Collector Raw Milling and Kiln Department Cobalt 7440484 2.49E-06 3.14E-07 1.34E-02 1.93E-07 s210 S-2101 Roller Mill Rock Feeders Dust Collector Raw Milling and Kiln Department Copper 7440508 1.39E-05 1.75E-06 7.46E-02 1.07E-06 s210 S-2101 Roller Mill Rock Feeders Dust Collector Raw Milling and Kiln Department Crystalline Silica 1175 2.57E-05 3.24E-06 1.38E-01 1.99E-06 s210 S-2101 Roller Mill Rock Feeders Dust Collector Raw Milling and Kiln Department Hexavalent Chromium 18540299 4.11E-06 5.18E-07 2.21E-02 3.18E-07 s210 S-2101 Roller Mill Rock Feeders Dust Collector Raw Milling and Kiln Department Lead 7439921 1.34E-06 1.68E-07 7.19E-03 1.03E-07 s210 S-2101 Roller Mill Rock Feeders Dust Collector Raw Milling and Kiln Department Manganese 7439965 3.34E-04 4.21E-05 1.80E+00 2.58E-05 s210 S-2101 Roller Mill Rock Feeders Dust Collector Raw Milling and Kiln Department Mercury 7439976 1.29E-08 1.62E-09 6.91E-05 9.94E-10 s210 S-2101 Roller Mill Rock Feeders Dust Collector Raw Milling and Kiln Department Nickel 7440020 1.00E-05 1.26E-06 5.39E-02 7.75E-07 s210 S-2101 Roller Mill Rock Feeders Dust Collector Raw Milling and Kiln Department Selenium 7782492 3.34E-07 4.21E-08 1.80E-03 2.58E-08 s210 S-2101 Roller Mill Rock Feeders Dust Collector Raw Milling and Kiln Department Silver 7440224 3.34E-08 4.21E-09 1.80E-04 2.58E-09 s210 S-2101 Roller Mill Rock Feeders Dust Collector Raw Milling and Kiln Department Thallium 7440280 3.09E-08 3.89E-09 1.66E-04 2.39E-09 s210 S-2101 Roller Mill Rock Feeders Dust Collector Raw Milling and Kiln Department Vanadium 7440622 2.57E-05 3.24E-06 1.38E-01 1.99E-06 s210 S-2101 Roller Mill Rock Feeders Dust Collector Raw Milling and Kiln Department Zinc 7440666 1.00E-04 1.26E-05 5.39E-01 7.75E-06 s253 S-2531 Bucket (meal) Elevator Dust Collector Raw Milling and Kiln Department Antimony 7440360 1.08E-07 1.36E-08 6.31E-04 9.07E-09 s253 S-2531 Bucket (meal) Elevator Dust Collector Raw Milling and Kiln Department Arsenic 7440382 2.78E-06 3.50E-07 1.62E-02 2.33E-07 s253 S-2531 Bucket (meal) Elevator Dust Collector Raw Milling and Kiln Department Barium 7440393 4.89E-05 6.16E-06 2.85E-01 4.10E-06 s253 S-2531 Bucket (meal) Elevator Dust Collector Raw Milling and Kiln Department Beryllium 7440417 5.14E-08 6.48E-09 3.00E-04 4.32E-09 s253 S-2531 Bucket (meal) Elevator Dust Collector Raw Milling and Kiln Department Cadmium 7440439 6.17E-07 7.78E-08 3.60E-03 5.18E-08 s253 S-2531 Bucket (meal) Elevator Dust Collector Raw Milling and Kiln Department Chromium 7440473 4.99E-06 6.29E-07 2.91E-02 4.19E-07 s253 S-2531 Bucket (meal) Elevator Dust Collector Raw Milling and Kiln Department Cobalt 7440484 2.37E-06 2.98E-07 1.38E-02 1.99E-07 s253 S-2531 Bucket (meal) Elevator Dust Collector Raw Milling and Kiln Department Copper 7440508 1.29E-05 1.62E-06 7.51E-02 1.08E-06 s253 S-2531 Bucket (meal) Elevator Dust Collector Raw Milling and Kiln Department Crystalline Silica 1175 6.74E-03 8.49E-04 3.93E+01 5.66E-04 s253 S-2531 Bucket (meal) Elevator Dust Collector Raw Milling and Kiln Department Hexavalent Chromium 18540299 4.42E-07 5.57E-08 2.58E-03 3.72E-08 s253 S-2531 Bucket (meal) Elevator Dust Collector Raw Milling and Kiln Department Lead 7439921 1.34E-06 1.68E-07 7.81E-03 1.12E-07 s253 S-2531 Bucket (meal) Elevator Dust Collector Raw Milling and Kiln Department Manganese 7439965 3.65E-04 4.60E-05 2.13E+00 3.07E-05 s253 S-2531 Bucket (meal) Elevator Dust Collector Raw Milling and Kiln Department Mercury 7439976 3.24E-07 4.08E-08 1.89E-03 2.72E-08 s253 S-2531 Bucket (meal) Elevator Dust Collector Raw Milling and Kiln Department Nickel 7440020 7.20E-06 9.07E-07 4.21E-02 6.05E-07 s253 S-2531 Bucket (meal) Elevator Dust Collector Raw Milling and Kiln Department Selenium 7782492 3.91E-07 4.92E-08 2.28E-03 3.28E-08 s253 S-2531 Bucket (meal) Elevator Dust Collector Raw Milling and Kiln Department Silver 7440224 5.66E-08 7.13E-09 3.30E-04 4.75E-09 s253 S-2531 Bucket (meal) Elevator Dust Collector Raw Milling and Kiln Department Thallium 7440280 9.77E-07 1.23E-07 5.71E-03 8.21E-08 s253 S-2531 Bucket (meal) Elevator Dust Collector Raw Milling and Kiln Department Vanadium 7440622 1.44E-05 1.81E-06 8.41E-02 1.21E-06 s253 S-2531 Bucket (meal) Elevator Dust Collector Raw Milling and Kiln Department Zinc 7440666 4.63E-05 5.83E-06 2.70E-01 3.89E-06 g451 G-4511 Portable Silo 250 WAM Dust Collector Raw Milling and Kiln Department Antimony 7440360 1.16E-08 1.46E-09 5.36E-05 7.71E-10 g451 G-4511 Portable Silo 250 WAM Dust Collector Raw Milling and Kiln Department Arsenic 7440382 1.39E-07 1.75E-08 6.44E-04 9.26E-09 g451 G-4511 Portable Silo 250 WAM Dust Collector Raw Milling and Kiln Department Barium 7440393 9.26E-07 1.17E-07 4.29E-03 6.17E-08 g451 G-4511 Portable Silo 250 WAM Dust Collector Raw Milling and Kiln Department Beryllium 7440417 7.71E-09 9.72E-10 3.58E-05 5.14E-10 g451 G-4511 Portable Silo 250 WAM Dust Collector Raw Milling and Kiln Department Cadmium 7440439 1.85E-09 2.33E-10 8.58E-06 1.23E-10 g451 G-4511 Portable Silo 250 WAM Dust Collector Raw Milling and Kiln Department Chromium 7440473 2.24E-07 2.82E-08 1.04E-03 1.49E-08 g451 G-4511 Portable Silo 250 WAM Dust Collector Raw Milling and Kiln Department Cobalt 7440484 1.93E-06 2.43E-07 8.94E-03 1.29E-07 g451 G-4511 Portable Silo 250 WAM Dust Collector Raw Milling and Kiln Department Copper 7440508 2.08E-07 2.62E-08 9.65E-04 1.39E-08 g451 G-4511 Portable Silo 250 WAM Dust Collector Raw Milling and Kiln Department Crystalline Silica 1175 1.54E-05 1.94E-06 7.15E-02 1.03E-06 g451 G-4511 Portable Silo 250 WAM Dust Collector Raw Milling and Kiln Department Hexavalent Chromium 18540299 5.79E-08 7.29E-09 2.68E-043.86E-09 g451 G-4511 Portable Silo 250 WAM Dust Collector Raw Milling and Kiln Department Lead 7439921 3.09E-08 3.89E-09 1.43E-04 2.06E-09 g451 G-4511 Portable Silo 250 WAM Dust Collector Raw Milling and Kiln Department Manganese 7439965 3.86E-07 4.86E-08 1.79E-03 2.57E-08 g451 G-4511 Portable Silo 250 WAM Dust Collector Raw Milling and Kiln Department Mercury 7439976 8.10E-10 1.02E-10 3.75E-06 5.40E-11 g451 G-4511 Portable Silo 250 WAM Dust Collector Raw Milling and Kiln Department Nickel 7440020 1.47E-04 1.85E-05 6.79E-01 9.77E-06 g451 G-4511 Portable Silo 250 WAM Dust Collector Raw Milling and Kiln Department Selenium 7782492 1.00E-07 1.26E-08 4.65E-04 6.69E-09 g451 G-4511 Portable Silo 250 WAM Dust Collector Raw Milling and Kiln Department Silver 7440224 1.97E-09 2.48E-10 9.12E-06 1.31E-10 g451 G-4511 Portable Silo 250 WAM Dust Collector Raw Milling and Kiln Department Thallium 7440280 1.89E-09 2.38E-10 8.76E-06 1.26E-10 g451 G-4511 Portable Silo 250 WAM Dust Collector Raw Milling and Kiln Department Vanadium 7440622 3.16E-04 3.99E-05 1.47E+00 2.11E-05 g451 G-4511 Portable Silo 250 WAM Dust Collector Raw Milling and Kiln Department Zinc 7440666 6.94E-07 8.75E-08 3.22E-03 4.63E-08 d341 D-341 Gypsum Elevator Dust Collector Finish Grinding Department Antimony 7440360 7.71E-09 9.72E-10 4.41E-05 6.34E-10 d341 D-341 Gypsum Elevator Dust Collector Finish Grinding Department Arsenic 7440382 2.12E-07 2.67E-08 1.21E-03 1.74E-08 d341 D-341 Gypsum Elevator Dust Collector Finish Grinding Department Barium 7440393 1.87E-06 2.36E-07 1.07E-02 1.54E-07 d341 D-341 Gypsum Elevator Dust Collector Finish Grinding Department Beryllium 7440417 1.93E-08 2.43E-09 1.10E-04 1.59E-09 d341 D-341 Gypsum Elevator Dust Collector Finish Grinding Department Cadmium 7440439 4.63E-09 5.83E-10 2.65E-05 3.81E-10 d341 D-341 Gypsum Elevator Dust Collector Finish Grinding Department Chromium 7440473 1.16E-07 1.46E-08 6.62E-04 9.52E-09 206
Table 2a. Emission Rate by Substance and Source
CalPortland Company
Permit Number: 02‐VP‐07b
Stack ID Source ID Source Name Plant Area Substance Name CAS No. 1-hour Maximum (lb/hr)
1-Hour Maximum
(g/s)
Annual Average
(lb/yr)
Annual Average
(g/s)
d341 D-341 Gypsum Elevator Dust Collector Finish Grinding Department Cobalt 7440484 1.45E-07 1.82E-08 8.27E-04 1.19E-08 d341 D-341 Gypsum Elevator Dust Collector Finish Grinding Department Copper 7440508 7.71E-07 9.72E-08 4.41E-03 6.34E-08 d341 D-341 Gypsum Elevator Dust Collector Finish Grinding Department Crystalline Silica 1175 1.93E-05 2.43E-06 1.10E-01 1.59E-06 d341 D-341 Gypsum Elevator Dust Collector Finish Grinding Department Hexavalent Chromium 18540299 1.31E-07 1.65E-08 7.50E-04 1.08E-08 d341 D-341 Gypsum Elevator Dust Collector Finish Grinding Department Lead 7439921 7.33E-08 9.23E-09 4.19E-04 6.03E-09 d341 D-341 Gypsum Elevator Dust Collector Finish Grinding Department Manganese 7439965 6.75E-06 8.50E-07 3.86E-02 5.55E-07 d341 D-341 Gypsum Elevator Dust Collector Finish Grinding Department Mercury 7439976 2.03E-09 2.55E-10 1.16E-05 1.67E-10 d341 D-341 Gypsum Elevator Dust Collector Finish Grinding Department Nickel 7440020 1.72E-06 2.16E-07 9.81E-03 1.41E-07 d341 D-341 Gypsum Elevator Dust Collector Finish Grinding Department Selenium 7782492 9.64E-08 1.21E-08 5.51E-04 7.93E-09 d341 D-341 Gypsum Elevator Dust Collector Finish Grinding Department Silver 7440224 4.92E-09 6.20E-10 2.81E-05 4.04E-10 d341 D-341 Gypsum Elevator Dust Collector Finish Grinding Department Thallium 7440280 4.73E-09 5.95E-10 2.70E-05 3.89E-10 d341 D-341 Gypsum Elevator Dust Collector Finish Grinding Department Vanadium 7440622 9.26E-07 1.17E-07 5.29E-03 7.61E-08 d341 D-341 Gypsum Elevator Dust Collector Finish Grinding Department Zinc 7440666 1.64E-06 2.07E-07 9.37E-03 1.35E-07 d1222 D-1222 Synthetic Gypsum Loading Dust Collector #1 Finish Grinding Department Antimony 7440360 7.20E-09 9.07E-10 3.30E-05 4.75E-10 d1222 D-1222 Synthetic Gypsum Loading Dust Collector #1 Finish Grinding Department Arsenic 7440382 1.98E-07 2.49E-08 9.09E-04 1.31E-08 d1222 D-1222 Synthetic Gypsum Loading Dust Collector #1 Finish Grinding Department Barium 7440393 1.75E-06 2.20E-07 8.01E-03 1.15E-07 d1222 D-1222 Synthetic Gypsum Loading Dust Collector #1 Finish Grinding Department Beryllium 7440417 1.80E-08 2.27E-09 8.26E-05 1.19E-09 d1222 D-1222 Synthetic Gypsum Loading Dust Collector #1 Finish Grinding Department Cadmium 7440439 4.32E-09 5.44E-10 1.98E-05 2.85E-10 d1222 D-1222 Synthetic Gypsum Loading Dust Collector #1 Finish Grinding Department Chromium 7440473 1.08E-07 1.36E-08 4.96E-04 7.13E-09 d1222 D-1222 Synthetic Gypsum Loading Dust Collector #1 Finish Grinding Department Cobalt 7440484 1.35E-07 1.70E-08 6.20E-04 8.91E-09 d1222 D-1222 Synthetic Gypsum Loading Dust Collector #1 Finish Grinding Department Copper 7440508 7.20E-09 9.07E-10 3.30E-05 4.75E-10 d1222 D-1222 Synthetic Gypsum Loading Dust Collector #1 Finish Grinding Department Crystalline Silica 1175 1.98E-07 2.49E-08 9.09E-04 1.31E-08 d1222 D-1222 Synthetic Gypsum Loading Dust Collector #1 Finish Grinding Department Hexavalent Chromium 18540299 1.22E-07 1.54E-08 5.62E-04 8.08E-09 d1222 D-1222 Synthetic Gypsum Loading Dust Collector #1 Finish Grinding Department Lead 7439921 6.84E-08 8.62E-09 3.14E-04 4.51E-09 d1222 D-1222 Synthetic Gypsum Loading Dust Collector #1 Finish Grinding Department Manganese 7439965 6.30E-06 7.94E-07 2.89E-02 4.16E-07 d1222 D-1222 Synthetic Gypsum Loading Dust Collector #1 Finish Grinding Department Mercury 7439976 1.89E-09 2.38E-10 8.67E-06 1.25E-10 d1222 D-1222 Synthetic Gypsum Loading Dust Collector #1 Finish Grinding Department Nickel 7440020 1.60E-06 2.02E-07 7.35E-03 1.06E-07 d1222 D-1222 Synthetic Gypsum Loading Dust Collector #1 Finish Grinding Department Selenium 7782492 9.00E-08 1.13E-08 4.13E-04 5.94E-09 d1222 D-1222 Synthetic Gypsum Loading Dust Collector #1 Finish Grinding Department Silver 7440224 4.59E-09 5.78E-10 2.11E-05 3.03E-10 d1222 D-1222 Synthetic Gypsum Loading Dust Collector #1 Finish Grinding Department Thallium 7440280 4.41E-09 5.56E-10 2.02E-05 2.91E-10 d1222 D-1222 Synthetic Gypsum Loading Dust Collector #1 Finish Grinding Department Vanadium 7440622 8.64E-07 1.09E-07 3.97E-03 5.70E-08 d1222 D-1222 Synthetic Gypsum Loading Dust Collector #1 Finish Grinding Department Zinc 7440666 1.53E-06 1.93E-07 7.02E-03 1.01E-07 d1241 D-1241 Synthetic Gypsum Loading Dust Collector #2 Finish Grinding Department Antimony 7440360 7.20E-09 9.07E-10 4.12E-05 5.92E-10 d1241 D-1241 Synthetic Gypsum Loading Dust Collector #2 Finish Grinding Department Arsenic 7440382 1.98E-07 2.49E-08 1.13E-03 1.63E-08 d1241 D-1241 Synthetic Gypsum Loading Dust Collector #2 Finish Grinding Department Barium 7440393 1.75E-06 2.20E-07 9.98E-03 1.44E-07 d1241 D-1241 Synthetic Gypsum Loading Dust Collector #2 Finish Grinding Department Beryllium 7440417 1.80E-08 2.27E-09 1.03E-04 1.48E-09 d1241 D-1241 Synthetic Gypsum Loading Dust Collector #2 Finish Grinding Department Cadmium 7440439 4.32E-09 5.44E-10 2.47E-05 3.55E-10 d1241 D-1241 Synthetic Gypsum Loading Dust Collector #2 Finish Grinding Department Chromium 7440473 1.08E-07 1.36E-08 6.18E-04 8.88E-09 d1241 D-1241 Synthetic Gypsum Loading Dust Collector #2 Finish Grinding Department Cobalt 7440484 1.35E-07 1.70E-08 7.72E-04 1.11E-08 d1241 D-1241 Synthetic Gypsum Loading Dust Collector #2 Finish Grinding Department Copper 7440508 7.20E-09 9.07E-10 4.12E-05 5.92E-10 d1241 D-1241 Synthetic Gypsum Loading Dust Collector #2 Finish Grinding Department Crystalline Silica 1175 1.98E-07 2.49E-08 1.13E-03 1.63E-08 d1241 D-1241 Synthetic Gypsum Loading Dust Collector #2 Finish Grinding Department Hexavalent Chromium 18540299 1.22E-07 1.54E-08 7.00E-04 1.01E-08 d1241 D-1241 Synthetic Gypsum Loading Dust Collector #2 Finish Grinding Department Lead 7439921 6.84E-08 8.62E-09 3.91E-04 5.63E-09 d1241 D-1241 Synthetic Gypsum Loading Dust Collector #2 Finish Grinding Department Manganese 7439965 6.30E-06 7.94E-07 3.60E-02 5.18E-07 d1241 D-1241 Synthetic Gypsum Loading Dust Collector #2 Finish Grinding Department Mercury 7439976 1.89E-09 2.38E-10 1.08E-05 1.55E-10 d1241 D-1241 Synthetic Gypsum Loading Dust Collector #2 Finish Grinding Department Nickel 7440020 1.60E-06 2.02E-07 9.16E-03 1.32E-07 d1241 D-1241 Synthetic Gypsum Loading Dust Collector #2 Finish Grinding Department Selenium 7782492 9.00E-08 1.13E-08 5.15E-04 7.40E-09 d1241 D-1241 Synthetic Gypsum Loading Dust Collector #2 Finish Grinding Department Silver 7440224 4.59E-09 5.78E-10 2.62E-05 3.77E-10 d1241 D-1241 Synthetic Gypsum Loading Dust Collector #2 Finish Grinding Department Thallium 7440280 4.41E-09 5.56E-10 2.52E-05 3.63E-10 d1241 D-1241 Synthetic Gypsum Loading Dust Collector #2 Finish Grinding Department Vanadium 7440622 8.64E-07 1.09E-07 4.94E-03 7.11E-08 d1241 D-1241 Synthetic Gypsum Loading Dust Collector #2 Finish Grinding Department Zinc 7440666 1.53E-06 1.93E-07 8.75E-03 1.26E-07 bf046 BF046 D-46 Clinker Bin Discharge Dust Collector Finish Grinding Department Antimony 7440360 3.68E-08 4.64E-09 2.11E-04 3.03E-09 bf046 BF046 D-46 Clinker Bin Discharge Dust Collector Finish Grinding Department Arsenic 7440382 2.03E-06 2.55E-07 1.16E-02 1.67E-07 bf046 BF046 D-46 Clinker Bin Discharge Dust Collector Finish Grinding Department Barium 7440393 4.05E-05 5.10E-06 2.32E-01 3.33E-06 bf046 BF046 D-46 Clinker Bin Discharge Dust Collector Finish Grinding Department Beryllium 7440417 4.05E-08 5.10E-09 2.32E-04 3.33E-09 bf046 BF046 D-46 Clinker Bin Discharge Dust Collector Finish Grinding Department Cadmium 7440439 2.39E-07 3.02E-08 1.37E-03 1.97E-08 bf046 BF046 D-46 Clinker Bin Discharge Dust Collector Finish Grinding Department Chromium 7440473 7.73E-06 9.74E-07 4.42E-02 6.36E-07 bf046 BF046 D-46 Clinker Bin Discharge Dust Collector Finish Grinding Department Cobalt 7440484 1.79E-06 2.25E-07 1.02E-02 1.47E-07 bf046 BF046 D-46 Clinker Bin Discharge Dust Collector Finish Grinding Department Copper 7440508 3.68E-08 4.64E-09 2.11E-04 3.03E-09 bf046 BF046 D-46 Clinker Bin Discharge Dust Collector Finish Grinding Department Crystalline Silica 1175 2.03E-06 2.55E-07 1.16E-02 1.67E-07 bf046 BF046 D-46 Clinker Bin Discharge Dust Collector Finish Grinding Department Hexavalent Chromium 18540299 2.95E-06 3.71E-07 1.68E-022.42E-07 bf046 BF046 D-46 Clinker Bin Discharge Dust Collector Finish Grinding Department Lead 7439921 9.57E-07 1.21E-07 5.47E-03 7.87E-08 bf046 BF046 D-46 Clinker Bin Discharge Dust Collector Finish Grinding Department Manganese 7439965 2.39E-04 3.02E-05 1.37E+00 1.97E-05 bf046 BF046 D-46 Clinker Bin Discharge Dust Collector Finish Grinding Department Mercury 7439976 9.21E-09 1.16E-09 5.26E-05 7.57E-10 bf046 BF046 D-46 Clinker Bin Discharge Dust Collector Finish Grinding Department Nickel 7440020 7.18E-06 9.05E-07 4.11E-02 5.90E-07 bf046 BF046 D-46 Clinker Bin Discharge Dust Collector Finish Grinding Department Selenium 7782492 2.39E-07 3.02E-08 1.37E-03 1.97E-08 bf046 BF046 D-46 Clinker Bin Discharge Dust Collector Finish Grinding Department Silver 7440224 2.39E-08 3.02E-09 1.37E-04 1.97E-09 bf046 BF046 D-46 Clinker Bin Discharge Dust Collector Finish Grinding Department Thallium 7440280 2.21E-08 2.78E-09 1.26E-04 1.82E-09 bf046 BF046 D-46 Clinker Bin Discharge Dust Collector Finish Grinding Department Vanadium 7440622 1.84E-05 2.32E-06 1.05E-01 1.51E-06 bf046 BF046 D-46 Clinker Bin Discharge Dust Collector Finish Grinding Department Zinc 7440666 7.18E-05 9.05E-06 4.11E-01 5.90E-06 bf05 BF05 D-5 Clinker Bin Discharge Dust Collector Finish Grinding Department Antimony 7440360 3.68E-08 4.64E-09 2.11E-04 3.03E-09 bf05 BF05 D-5 Clinker Bin Discharge Dust Collector Finish Grinding Department Arsenic 7440382 2.03E-06 2.55E-07 1.16E-02 1.67E-07 bf05 BF05 D-5 Clinker Bin Discharge Dust Collector Finish Grinding Department Barium 7440393 4.05E-05 5.10E-06 2.32E-01 3.33E-06 bf05 BF05 D-5 Clinker Bin Discharge Dust Collector Finish Grinding Department Beryllium 7440417 4.05E-08 5.10E-09 2.32E-04 3.33E-09 bf05 BF05 D-5 Clinker Bin Discharge Dust Collector Finish Grinding Department Cadmium 7440439 2.39E-07 3.02E-08 1.37E-03 1.97E-08 bf05 BF05 D-5 Clinker Bin Discharge Dust Collector Finish Grinding Department Chromium 7440473 7.73E-06 9.74E-07 4.42E-02 6.36E-07 bf05 BF05 D-5 Clinker Bin Discharge Dust Collector Finish Grinding Department Cobalt 7440484 1.79E-06 2.25E-07 1.02E-02 1.47E-07 bf05 BF05 D-5 Clinker Bin Discharge Dust Collector Finish Grinding Department Copper 7440508 3.68E-08 4.64E-09 2.11E-04 3.03E-09 bf05 BF05 D-5 Clinker Bin Discharge Dust Collector Finish Grinding Department Crystalline Silica 1175 2.03E-06 2.55E-07 1.16E-02 1.67E-07 bf05 BF05 D-5 Clinker Bin Discharge Dust Collector Finish Grinding Department Hexavalent Chromium 18540299 2.95E-06 3.71E-07 1.68E-02 2.42E-07 bf05 BF05 D-5 Clinker Bin Discharge Dust Collector Finish Grinding Department Lead 7439921 9.57E-07 1.21E-07 5.47E-03 7.87E-08 bf05 BF05 D-5 Clinker Bin Discharge Dust Collector Finish Grinding Department Manganese 7439965 2.39E-04 3.02E-05 1.37E+00 1.97E-05 bf05 BF05 D-5 Clinker Bin Discharge Dust Collector Finish Grinding Department Mercury 7439976 9.21E-09 1.16E-09 5.26E-05 7.57E-10 bf05 BF05 D-5 Clinker Bin Discharge Dust Collector Finish Grinding Department Nickel 7440020 7.18E-06 9.05E-07 4.11E-02 5.90E-07 bf05 BF05 D-5 Clinker Bin Discharge Dust Collector Finish Grinding Department Selenium 7782492 2.39E-07 3.02E-08 1.37E-03 1.97E-08 bf05 BF05 D-5 Clinker Bin Discharge Dust Collector Finish Grinding Department Silver 7440224 2.39E-08 3.02E-09 1.37E-04 1.97E-09 bf05 BF05 D-5 Clinker Bin Discharge Dust Collector Finish Grinding Department Thallium 7440280 2.21E-08 2.78E-09 1.26E-04 1.82E-09 bf05 BF05 D-5 Clinker Bin Discharge Dust Collector Finish Grinding Department Vanadium 7440622 1.84E-05 2.32E-06 1.05E-01 1.51E-06 bf05 BF05 D-5 Clinker Bin Discharge Dust Collector Finish Grinding Department Zinc 7440666 7.18E-05 9.05E-06 4.11E-01 5.90E-06 bf042 BF042 D-42 Limestone Bin Discharge Dust Collector Finish Grinding Department Antimony 7440360 3.68E-08 4.64E-09 2.11E-04 3.03E-09 bf042 BF042 D-42 Limestone Bin Discharge Dust Collector Finish Grinding Department Arsenic 7440382 2.03E-06 2.55E-07 1.16E-02 1.67E-07 bf042 BF042 D-42 Limestone Bin Discharge Dust Collector Finish Grinding Department Barium 7440393 4.05E-05 5.10E-06 2.32E-01 3.33E-06 bf042 BF042 D-42 Limestone Bin Discharge Dust Collector Finish Grinding Department Beryllium 7440417 4.05E-08 5.10E-09 2.32E-04 3.33E-09 bf042 BF042 D-42 Limestone Bin Discharge Dust Collector Finish Grinding Department Cadmium 7440439 2.39E-07 3.02E-08 1.37E-03 1.97E-08 bf042 BF042 D-42 Limestone Bin Discharge Dust Collector Finish Grinding Department Chromium 7440473 7.73E-06 9.74E-07 4.42E-02 6.36E-07 bf042 BF042 D-42 Limestone Bin Discharge Dust Collector Finish Grinding Department Cobalt 7440484 1.79E-06 2.25E-07 1.02E-02 1.47E-07 bf042 BF042 D-42 Limestone Bin Discharge Dust Collector Finish Grinding Department Copper 7440508 3.68E-08 4.64E-09 2.11E-04 3.03E-09 bf042 BF042 D-42 Limestone Bin Discharge Dust Collector Finish Grinding Department Crystalline Silica 1175 2.03E-06 2.55E-07 1.16E-02 1.67E-07 bf042 BF042 D-42 Limestone Bin Discharge Dust Collector Finish Grinding Department Hexavalent Chromium 18540299 2.95E-06 3.71E-07 1.68E-02 2.42E-07 bf042 BF042 D-42 Limestone Bin Discharge Dust Collector Finish Grinding Department Lead 7439921 9.57E-07 1.21E-07 5.47E-03 7.87E-08 bf042 BF042 D-42 Limestone Bin Discharge Dust Collector Finish Grinding Department Manganese 7439965 2.39E-04 3.02E-05 1.37E+00 1.97E-05 bf042 BF042 D-42 Limestone Bin Discharge Dust Collector Finish Grinding Department Mercury 7439976 9.21E-09 1.16E-09 5.26E-05 7.57E-10 bf042 BF042 D-42 Limestone Bin Discharge Dust Collector Finish Grinding Department Nickel 7440020 7.18E-06 9.05E-07 4.11E-02 5.90E-07 bf042 BF042 D-42 Limestone Bin Discharge Dust Collector Finish Grinding Department Selenium 7782492 2.39E-07 3.02E-08 1.37E-03 1.97E-08 bf042 BF042 D-42 Limestone Bin Discharge Dust Collector Finish Grinding Department Silver 7440224 2.39E-08 3.02E-09 1.37E-04 1.97E-09 bf042 BF042 D-42 Limestone Bin Discharge Dust Collector Finish Grinding Department Thallium 7440280 2.21E-08 2.78E-09 1.26E-04 1.82E-09 bf042 BF042 D-42 Limestone Bin Discharge Dust Collector Finish Grinding Department Vanadium 7440622 1.84E-05 2.32E-06 1.05E-01 1.51E-06 bf042 BF042 D-42 Limestone Bin Discharge Dust Collector Finish Grinding Department Zinc 7440666 7.18E-05 9.05E-06 4.11E-01 5.90E-06 bf101 BF101 FM Tower #1 Dust Collector Finish Grinding Department Antimony 7440360 3.93E-08 4.95E-09 2.25E-04 3.23E-09 bf101 BF101 FM Tower #1 Dust Collector Finish Grinding Department Arsenic 7440382 2.16E-06 2.72E-07 1.24E-02 1.78E-07 bf101 BF101 FM Tower #1 Dust Collector Finish Grinding Department Barium 7440393 4.32E-05 5.44E-06 2.47E-01 3.55E-06 bf101 BF101 FM Tower #1 Dust Collector Finish Grinding Department Beryllium 7440417 4.32E-08 5.44E-09 2.47E-04 3.55E-09 bf101 BF101 FM Tower #1 Dust Collector Finish Grinding Department Cadmium 7440439 2.55E-07 3.22E-08 1.46E-03 2.10E-08 bf101 BF101 FM Tower #1 Dust Collector Finish Grinding Department Chromium 7440473 8.25E-06 1.04E-06 4.72E-02 6.78E-07 bf101 BF101 FM Tower #1 Dust Collector Finish Grinding Department Cobalt 7440484 1.90E-06 2.40E-07 1.09E-02 1.57E-07 bf101 BF101 FM Tower #1 Dust Collector Finish Grinding Department Copper 7440508 3.93E-08 4.95E-09 2.25E-04 3.23E-09 bf101 BF101 FM Tower #1 Dust Collector Finish Grinding Department Crystalline Silica 1175 2.16E-06 2.72E-07 1.24E-02 1.78E-07 bf101 BF101 FM Tower #1 Dust Collector Finish Grinding Department Hexavalent Chromium 18540299 3.14E-06 3.96E-07 1.80E-02 2.58E-07 bf101 BF101 FM Tower #1 Dust Collector Finish Grinding Department Lead 7439921 1.02E-06 1.29E-07 5.84E-03 8.40E-08 207
Table 2a. Emission Rate by Substance and Source
CalPortland Company
Permit Number: 02‐VP‐07b
Stack ID Source ID Source Name Plant Area Substance Name CAS No. 1-hour Maximum (lb/hr)
1-Hour Maximum
(g/s)
Annual Average
(lb/yr)
Annual Average
(g/s)
bf101 BF101 FM Tower #1 Dust Collector Finish Grinding Department Manganese 7439965 2.55E-04 3.22E-05 1.46E+00 2.10E-05 bf101 BF101 FM Tower #1 Dust Collector Finish Grinding Department Mercury 7439976 9.82E-09 1.24E-09 5.61E-05 8.08E-10 bf101 BF101 FM Tower #1 Dust Collector Finish Grinding Department Nickel 7440020 7.66E-06 9.65E-07 4.38E-02 6.30E-07 bf101 BF101 FM Tower #1 Dust Collector Finish Grinding Department Selenium 7782492 2.55E-07 3.22E-08 1.46E-03 2.10E-08 bf101 BF101 FM Tower #1 Dust Collector Finish Grinding Department Silver 7440224 2.55E-08 3.22E-09 1.46E-04 2.10E-09 bf101 BF101 FM Tower #1 Dust Collector Finish Grinding Department Thallium 7440280 2.36E-08 2.97E-09 1.35E-04 1.94E-09 bf101 BF101 FM Tower #1 Dust Collector Finish Grinding Department Vanadium 7440622 1.96E-05 2.47E-06 1.12E-01 1.62E-06 bf101 BF101 FM Tower #1 Dust Collector Finish Grinding Department Zinc 7440666 7.66E-05 9.65E-06 4.38E-01 6.30E-06 bf102 BF102 FM Tower #2 Dust Collector Finish Grinding Department Antimony 7440360 3.44E-08 4.33E-09 1.96E-04 2.83E-09 bf102 BF102 FM Tower #2 Dust Collector Finish Grinding Department Arsenic 7440382 1.89E-06 2.38E-07 1.08E-02 1.55E-07 bf102 BF102 FM Tower #2 Dust Collector Finish Grinding Department Barium 7440393 3.78E-05 4.76E-06 2.16E-01 3.11E-06 bf102 BF102 FM Tower #2 Dust Collector Finish Grinding Department Beryllium 7440417 3.78E-08 4.76E-09 2.16E-04 3.11E-09 bf102 BF102 FM Tower #2 Dust Collector Finish Grinding Department Cadmium 7440439 2.23E-07 2.81E-08 1.28E-03 1.84E-08 bf102 BF102 FM Tower #2 Dust Collector Finish Grinding Department Chromium 7440473 7.22E-06 9.09E-07 4.13E-02 5.94E-07 bf102 BF102 FM Tower #2 Dust Collector Finish Grinding Department Cobalt 7440484 1.67E-06 2.10E-07 9.53E-03 1.37E-07 bf102 BF102 FM Tower #2 Dust Collector Finish Grinding Department Copper 7440508 3.44E-08 4.33E-09 1.96E-04 2.83E-09 bf102 BF102 FM Tower #2 Dust Collector Finish Grinding Department Crystalline Silica 1175 1.89E-06 2.38E-07 1.08E-02 1.55E-07 bf102 BF102 FM Tower #2 Dust Collector Finish Grinding Department Hexavalent Chromium 18540299 2.75E-06 3.46E-07 1.57E-02 2.26E-07 bf102 BF102 FM Tower #2 Dust Collector Finish Grinding Department Lead 7439921 8.94E-07 1.13E-07 5.11E-03 7.35E-08 bf102 BF102 FM Tower #2 Dust Collector Finish Grinding Department Manganese 7439965 2.23E-04 2.81E-05 1.28E+00 1.84E-05 bf102 BF102 FM Tower #2 Dust Collector Finish Grinding Department Mercury 7439976 8.59E-09 1.08E-09 4.91E-05 7.07E-10 bf102 BF102 FM Tower #2 Dust Collector Finish Grinding Department Nickel 7440020 6.70E-06 8.44E-07 3.83E-02 5.51E-07 bf102 BF102 FM Tower #2 Dust Collector Finish Grinding Department Selenium 7782492 2.23E-07 2.81E-08 1.28E-03 1.84E-08 bf102 BF102 FM Tower #2 Dust Collector Finish Grinding Department Silver 7440224 2.23E-08 2.81E-09 1.28E-04 1.84E-09 bf102 BF102 FM Tower #2 Dust Collector Finish Grinding Department Thallium 7440280 2.06E-08 2.60E-09 1.18E-04 1.70E-09 bf102 BF102 FM Tower #2 Dust Collector Finish Grinding Department Vanadium 7440622 1.72E-05 2.17E-06 9.82E-02 1.41E-06 bf102 BF102 FM Tower #2 Dust Collector Finish Grinding Department Zinc 7440666 6.70E-05 8.44E-06 3.83E-01 5.51E-06 bf103 BF103 FM Tower #3 Dust Collector Finish Grinding Department Antimony 7440360 3.44E-08 4.33E-09 1.96E-04 2.83E-09 bf103 BF103 FM Tower #3 Dust Collector Finish Grinding Department Arsenic 7440382 1.89E-06 2.38E-07 1.08E-02 1.55E-07 bf103 BF103 FM Tower #3 Dust Collector Finish Grinding Department Barium 7440393 3.78E-05 4.76E-06 2.16E-01 3.11E-06 bf103 BF103 FM Tower #3 Dust Collector Finish Grinding Department Beryllium 7440417 3.78E-08 4.76E-09 2.16E-04 3.11E-09 bf103 BF103 FM Tower #3 Dust Collector Finish Grinding Department Cadmium 7440439 2.23E-07 2.81E-08 1.28E-03 1.84E-08 bf103 BF103 FM Tower #3 Dust Collector Finish Grinding Department Chromium 7440473 7.22E-06 9.09E-07 4.13E-02 5.94E-07 bf103 BF103 FM Tower #3 Dust Collector Finish Grinding Department Cobalt 7440484 1.67E-06 2.10E-07 9.53E-03 1.37E-07 bf103 BF103 FM Tower #3 Dust Collector Finish Grinding Department Copper 7440508 3.44E-08 4.33E-09 1.96E-04 2.83E-09 bf103 BF103 FM Tower #3 Dust Collector Finish Grinding Department Crystalline Silica 1175 1.89E-06 2.38E-07 1.08E-02 1.55E-07 bf103 BF103 FM Tower #3 Dust Collector Finish Grinding Department Hexavalent Chromium 18540299 2.75E-06 3.46E-07 1.57E-02 2.26E-07 bf103 BF103 FM Tower #3 Dust Collector Finish Grinding Department Lead 7439921 8.94E-07 1.13E-07 5.11E-03 7.35E-08 bf103 BF103 FM Tower #3 Dust Collector Finish Grinding Department Manganese 7439965 2.23E-04 2.81E-05 1.28E+00 1.84E-05 bf103 BF103 FM Tower #3 Dust Collector Finish Grinding Department Mercury 7439976 8.59E-09 1.08E-09 4.91E-05 7.07E-10 bf103 BF103 FM Tower #3 Dust Collector Finish Grinding Department Nickel 7440020 6.70E-06 8.44E-07 3.83E-02 5.51E-07 bf103 BF103 FM Tower #3 Dust Collector Finish Grinding Department Selenium 7782492 2.23E-07 2.81E-08 1.28E-03 1.84E-08 bf103 BF103 FM Tower #3 Dust Collector Finish Grinding Department Silver 7440224 2.23E-08 2.81E-09 1.28E-04 1.84E-09 bf103 BF103 FM Tower #3 Dust Collector Finish Grinding Department Thallium 7440280 2.06E-08 2.60E-09 1.18E-04 1.70E-09 bf103 BF103 FM Tower #3 Dust Collector Finish Grinding Department Vanadium 7440622 1.72E-05 2.17E-06 9.82E-02 1.41E-06 bf103 BF103 FM Tower #3 Dust Collector Finish Grinding Department Zinc 7440666 6.70E-05 8.44E-06 3.83E-01 5.51E-06 bf104 BF104 FM-BC-104 Transfer Dust Collector Finish Grinding Department Antimony 7440360 3.44E-08 4.33E-09 1.96E-04 2.83E-09 bf104 BF104 FM-BC-104 Transfer Dust Collector Finish Grinding Department Arsenic 7440382 1.89E-06 2.38E-07 1.08E-02 1.55E-07 bf104 BF104 FM-BC-104 Transfer Dust Collector Finish Grinding Department Barium 7440393 3.78E-05 4.76E-06 2.16E-01 3.11E-06 bf104 BF104 FM-BC-104 Transfer Dust Collector Finish Grinding Department Beryllium 7440417 3.78E-08 4.76E-09 2.16E-04 3.11E-09 bf104 BF104 FM-BC-104 Transfer Dust Collector Finish Grinding Department Cadmium 7440439 2.23E-07 2.81E-08 1.28E-03 1.84E-08 bf104 BF104 FM-BC-104 Transfer Dust Collector Finish Grinding Department Chromium 7440473 7.22E-06 9.09E-07 4.13E-02 5.94E-07 bf104 BF104 FM-BC-104 Transfer Dust Collector Finish Grinding Department Cobalt 7440484 1.67E-06 2.10E-07 9.53E-03 1.37E-07 bf104 BF104 FM-BC-104 Transfer Dust Collector Finish Grinding Department Copper 7440508 3.44E-08 4.33E-09 1.96E-04 2.83E-09 bf104 BF104 FM-BC-104 Transfer Dust Collector Finish Grinding Department Crystalline Silica 1175 1.89E-06 2.38E-07 1.08E-02 1.55E-07 bf104 BF104 FM-BC-104 Transfer Dust Collector Finish Grinding Department Hexavalent Chromium 18540299 2.75E-06 3.46E-07 1.57E-02 2.26E-07 bf104 BF104 FM-BC-104 Transfer Dust Collector Finish Grinding Department Lead 7439921 8.94E-07 1.13E-07 5.11E-03 7.35E-08 bf104 BF104 FM-BC-104 Transfer Dust Collector Finish Grinding Department Manganese 7439965 2.23E-04 2.81E-05 1.28E+00 1.84E-05 bf104 BF104 FM-BC-104 Transfer Dust Collector Finish Grinding Department Mercury 7439976 8.59E-09 1.08E-09 4.91E-05 7.07E-10 bf104 BF104 FM-BC-104 Transfer Dust Collector Finish Grinding Department Nickel 7440020 6.70E-06 8.44E-07 3.83E-02 5.51E-07 bf104 BF104 FM-BC-104 Transfer Dust Collector Finish Grinding Department Selenium 7782492 2.23E-07 2.81E-08 1.28E-03 1.84E-08 bf104 BF104 FM-BC-104 Transfer Dust Collector Finish Grinding Department Silver 7440224 2.23E-08 2.81E-09 1.28E-04 1.84E-09 bf104 BF104 FM-BC-104 Transfer Dust Collector Finish Grinding Department Thallium 7440280 2.06E-08 2.60E-09 1.18E-04 1.70E-09 bf104 BF104 FM-BC-104 Transfer Dust Collector Finish Grinding Department Vanadium 7440622 1.72E-05 2.17E-06 9.82E-02 1.41E-06 bf104 BF104 FM-BC-104 Transfer Dust Collector Finish Grinding Department Zinc 7440666 6.70E-05 8.44E-06 3.83E-01 5.51E-06 bf105 BF105 FM-BM-101 Mill Inlet Dust Collector Finish Grinding Department Antimony 7440360 3.68E-08 4.64E-09 2.11E-04 3.03E-09 bf105 BF105 FM-BM-101 Mill Inlet Dust Collector Finish Grinding Department Arsenic 7440382 2.03E-06 2.55E-07 1.16E-02 1.67E-07 bf105 BF105 FM-BM-101 Mill Inlet Dust Collector Finish Grinding Department Barium 7440393 4.05E-05 5.10E-06 2.32E-01 3.33E-06 bf105 BF105 FM-BM-101 Mill Inlet Dust Collector Finish Grinding Department Beryllium 7440417 4.05E-08 5.10E-09 2.32E-04 3.33E-09 bf105 BF105 FM-BM-101 Mill Inlet Dust Collector Finish Grinding Department Cadmium 7440439 2.39E-07 3.02E-08 1.37E-03 1.97E-08 bf105 BF105 FM-BM-101 Mill Inlet Dust Collector Finish Grinding Department Chromium 7440473 7.73E-06 9.74E-07 4.42E-02 6.36E-07 bf105 BF105 FM-BM-101 Mill Inlet Dust Collector Finish Grinding Department Cobalt 7440484 1.79E-06 2.25E-07 1.02E-02 1.47E-07 bf105 BF105 FM-BM-101 Mill Inlet Dust Collector Finish Grinding Department Copper 7440508 3.68E-08 4.64E-09 2.11E-04 3.03E-09 bf105 BF105 FM-BM-101 Mill Inlet Dust Collector Finish Grinding Department Crystalline Silica 1175 2.03E-06 2.55E-07 1.16E-02 1.67E-07 bf105 BF105 FM-BM-101 Mill Inlet Dust Collector Finish Grinding Department Hexavalent Chromium 18540299 2.95E-06 3.71E-07 1.68E-02 2.42E-07 bf105 BF105 FM-BM-101 Mill Inlet Dust Collector Finish Grinding Department Lead 7439921 9.57E-07 1.21E-07 5.47E-03 7.87E-08 bf105 BF105 FM-BM-101 Mill Inlet Dust Collector Finish Grinding Department Manganese 7439965 2.39E-04 3.02E-05 1.37E+00 1.97E-05 bf105 BF105 FM-BM-101 Mill Inlet Dust Collector Finish Grinding Department Mercury 7439976 9.21E-09 1.16E-09 5.26E-05 7.57E-10 bf105 BF105 FM-BM-101 Mill Inlet Dust Collector Finish Grinding Department Nickel 7440020 7.18E-06 9.05E-07 4.11E-02 5.90E-07 bf105 BF105 FM-BM-101 Mill Inlet Dust Collector Finish Grinding Department Selenium 7782492 2.39E-07 3.02E-08 1.37E-03 1.97E-08 bf105 BF105 FM-BM-101 Mill Inlet Dust Collector Finish Grinding Department Silver 7440224 2.39E-08 3.02E-09 1.37E-04 1.97E-09 bf105 BF105 FM-BM-101 Mill Inlet Dust Collector Finish Grinding Department Thallium 7440280 2.21E-08 2.78E-09 1.26E-04 1.82E-09 bf105 BF105 FM-BM-101 Mill Inlet Dust Collector Finish Grinding Department Vanadium 7440622 1.84E-05 2.32E-06 1.05E-01 1.51E-06 bf105 BF105 FM-BM-101 Mill Inlet Dust Collector Finish Grinding Department Zinc 7440666 7.18E-05 9.05E-06 4.11E-01 5.90E-06 bf106 BF106 FM-BM-101 Mill Discharge Dust Collector Finish Grinding Department Antimony 7440360 4.50E-08 5.67E-09 2.57E-04 3.70E-09 bf106 BF106 FM-BM-101 Mill Discharge Dust Collector Finish Grinding Department Arsenic 7440382 2.48E-06 3.12E-07 1.42E-02 2.04E-07 bf106 BF106 FM-BM-101 Mill Discharge Dust Collector Finish Grinding Department Barium 7440393 4.95E-05 6.24E-06 2.83E-01 4.07E-06 bf106 BF106 FM-BM-101 Mill Discharge Dust Collector Finish Grinding Department Beryllium 7440417 4.95E-08 6.24E-09 2.83E-04 4.07E-09 bf106 BF106 FM-BM-101 Mill Discharge Dust Collector Finish Grinding Department Cadmium 7440439 2.93E-07 3.69E-08 1.67E-03 2.41E-08 bf106 BF106 FM-BM-101 Mill Discharge Dust Collector Finish Grinding Department Chromium 7440473 9.45E-06 1.19E-06 5.40E-02 7.77E-07 bf106 BF106 FM-BM-101 Mill Discharge Dust Collector Finish Grinding Department Cobalt 7440484 2.18E-06 2.75E-07 1.25E-02 1.80E-07 bf106 BF106 FM-BM-101 Mill Discharge Dust Collector Finish Grinding Department Copper 7440508 4.50E-08 5.67E-09 2.57E-04 3.70E-09 bf106 BF106 FM-BM-101 Mill Discharge Dust Collector Finish Grinding Department Crystalline Silica 1175 2.48E-06 3.12E-07 1.42E-02 2.04E-07 bf106 BF106 FM-BM-101 Mill Discharge Dust Collector Finish Grinding Department Hexavalent Chromium 18540299 3.60E-06 4.54E-07 2.06E-02 2.96E-07 bf106 BF106 FM-BM-101 Mill Discharge Dust Collector Finish Grinding Department Lead 7439921 1.17E-06 1.47E-07 6.69E-03 9.62E-08 bf106 BF106 FM-BM-101 Mill Discharge Dust Collector Finish Grinding Department Manganese 7439965 2.93E-04 3.69E-05 1.67E+00 2.41E-05 bf106 BF106 FM-BM-101 Mill Discharge Dust Collector Finish Grinding Department Mercury 7439976 1.13E-08 1.42E-09 6.43E-05 9.25E-10 bf106 BF106 FM-BM-101 Mill Discharge Dust Collector Finish Grinding Department Nickel 7440020 8.78E-06 1.11E-06 5.02E-02 7.22E-07 bf106 BF106 FM-BM-101 Mill Discharge Dust Collector Finish Grinding Department Selenium 7782492 2.93E-07 3.69E-08 1.67E-03 2.41E-08 bf106 BF106 FM-BM-101 Mill Discharge Dust Collector Finish Grinding Department Silver 7440224 2.93E-08 3.69E-09 1.67E-04 2.41E-09 bf106 BF106 FM-BM-101 Mill Discharge Dust Collector Finish Grinding Department Thallium 7440280 2.70E-08 3.40E-09 1.54E-04 2.22E-09 bf106 BF106 FM-BM-101 Mill Discharge Dust Collector Finish Grinding Department Vanadium 7440622 2.25E-05 2.84E-06 1.29E-01 1.85E-06 bf106 BF106 FM-BM-101 Mill Discharge Dust Collector Finish Grinding Department Zinc 7440666 8.78E-05 1.11E-05 5.02E-01 7.22E-06 bf107 BF107 FM-CQ-101 Cement Cooler Transport Dust Collector Finish Grinding Department Antimony 7440360 2.86E-08 3.61E-09 1.64E-04 2.36E-09 bf107 BF107 FM-CQ-101 Cement Cooler Transport Dust Collector Finish Grinding Department Arsenic 7440382 1.58E-06 1.98E-07 9.01E-03 1.30E-07 bf107 BF107 FM-CQ-101 Cement Cooler Transport Dust Collector Finish Grinding Department Barium 7440393 3.15E-05 3.97E-06 1.80E-01 2.59E-06 bf107 BF107 FM-CQ-101 Cement Cooler Transport Dust Collector Finish Grinding Department Beryllium 7440417 3.15E-08 3.97E-09 1.80E-04 2.59E-09 bf107 BF107 FM-CQ-101 Cement Cooler Transport Dust Collector Finish Grinding Department Cadmium 7440439 1.86E-07 2.35E-08 1.06E-03 1.53E-08 bf107 BF107 FM-CQ-101 Cement Cooler Transport Dust Collector Finish Grinding Department Chromium 7440473 6.01E-06 7.58E-07 3.44E-02 4.95E-07 bf107 BF107 FM-CQ-101 Cement Cooler Transport Dust Collector Finish Grinding Department Cobalt 7440484 1.39E-06 1.75E-07 7.94E-03 1.14E-07 bf107 BF107 FM-CQ-101 Cement Cooler Transport Dust Collector Finish Grinding Department Copper 7440508 2.86E-08 3.61E-09 1.64E-04 2.36E-09 bf107 BF107 FM-CQ-101 Cement Cooler Transport Dust Collector Finish Grinding Department Crystalline Silica 1175 1.58E-06 1.98E-07 9.01E-03 1.30E-07 bf107 BF107 FM-CQ-101 Cement Cooler Transport Dust Collector Finish Grinding Department Hexavalent Chromium 18540299 2.29E-06 2.89E-07 1.31E-02 1.88E-07 bf107 BF107 FM-CQ-101 Cement Cooler Transport Dust Collector Finish Grinding Department Lead 7439921 7.45E-07 9.38E-08 4.26E-03 6.12E-08 bf107 BF107 FM-CQ-101 Cement Cooler Transport Dust Collector Finish Grinding Department Manganese 7439965 1.86E-04 2.35E-05 1.06E+00 1.53E-05 bf107 BF107 FM-CQ-101 Cement Cooler Transport Dust Collector Finish Grinding Department Mercury 7439976 7.16E-09 9.02E-10 4.09E-05 5.89E-10 bf107 BF107 FM-CQ-101 Cement Cooler Transport Dust Collector Finish Grinding Department Nickel 7440020 5.58E-06 7.04E-07 3.19E-02 4.59E-07 bf107 BF107 FM-CQ-101 Cement Cooler Transport Dust Collector Finish Grinding Department Selenium 7782492 1.86E-07 2.35E-08 1.06E-03 1.53E-08 bf107 BF107 FM-CQ-101 Cement Cooler Transport Dust Collector Finish Grinding Department Silver 7440224 1.86E-08 2.35E-09 1.06E-04 1.53E-09 208
Table 2a. Emission Rate by Substance and Source
CalPortland Company
Permit Number: 02‐VP‐07b
Stack ID Source ID Source Name Plant Area Substance Name CAS No. 1-hour Maximum (lb/hr)
1-Hour Maximum
(g/s)
Annual Average
(lb/yr)
Annual Average
(g/s)
bf107 BF107 FM-CQ-101 Cement Cooler Transport Dust Collector Finish Grinding Department Thallium 7440280 1.72E-08 2.17E-09 9.82E-05 1.41E-09 bf107 BF107 FM-CQ-101 Cement Cooler Transport Dust Collector Finish Grinding Department Vanadium 7440622 1.43E-05 1.80E-06 8.19E-02 1.18E-06 bf107 BF107 FM-CQ-101 Cement Cooler Transport Dust Collector Finish Grinding Department Zinc 7440666 5.58E-05 7.04E-06 3.19E-01 4.59E-06 bf108 BF108 FM-BE-103 Cement Storage Distribution Dust Collector Finish Grinding Department Antimony 7440360 5.32E-08 6.70E-09 3.04E-04 4.37E-09 bf108 BF108 FM-BE-103 Cement Storage Distribution Dust Collector Finish Grinding Department Arsenic 7440382 2.93E-06 3.69E-07 1.67E-02 2.41E-07 bf108 BF108 FM-BE-103 Cement Storage Distribution Dust Collector Finish Grinding Department Barium 7440393 5.85E-05 7.37E-06 3.35E-01 4.81E-06 bf108 BF108 FM-BE-103 Cement Storage Distribution Dust Collector Finish Grinding Department Beryllium 7440417 5.85E-08 7.37E-09 3.35E-044.81E-09 bf108 BF108 FM-BE-103 Cement Storage Distribution Dust Collector Finish Grinding Department Cadmium 7440439 3.46E-07 4.36E-08 1.98E-03 2.84E-08 bf108 BF108 FM-BE-103 Cement Storage Distribution Dust Collector Finish Grinding Department Chromium 7440473 1.12E-05 1.41E-06 6.39E-02 9.19E-07 bf108 BF108 FM-BE-103 Cement Storage Distribution Dust Collector Finish Grinding Department Cobalt 7440484 2.58E-06 3.25E-07 1.47E-02 2.12E-07 bf108 BF108 FM-BE-103 Cement Storage Distribution Dust Collector Finish Grinding Department Copper 7440508 5.32E-08 6.70E-09 3.04E-04 4.37E-09 bf108 BF108 FM-BE-103 Cement Storage Distribution Dust Collector Finish Grinding Department Crystalline Silica 1175 2.93E-06 3.69E-07 1.67E-02 2.41E-07 bf108 BF108 FM-BE-103 Cement Storage Distribution Dust Collector Finish Grinding Department Hexavalent Chromium 18540299 4.25E-06 5.36E-07 2.43E-02 3.50E-07 bf108 BF108 FM-BE-103 Cement Storage Distribution Dust Collector Finish Grinding Department Lead 7439921 1.38E-06 1.74E-07 7.91E-03 1.14E-07 bf108 BF108 FM-BE-103 Cement Storage Distribution Dust Collector Finish Grinding Department Manganese 7439965 3.46E-04 4.36E-05 1.98E+00 2.84E-05 bf108 BF108 FM-BE-103 Cement Storage Distribution Dust Collector Finish Grinding Department Mercury 7439976 1.33E-08 1.68E-09 7.60E-05 1.09E-09 bf108 BF108 FM-BE-103 Cement Storage Distribution Dust Collector Finish Grinding Department Nickel 7440020 1.04E-05 1.31E-06 5.93E-02 8.53E-07 bf108 BF108 FM-BE-103 Cement Storage Distribution Dust Collector Finish Grinding Department Selenium 7782492 3.46E-07 4.36E-08 1.98E-03 2.84E-08 bf108 BF108 FM-BE-103 Cement Storage Distribution Dust Collector Finish Grinding Department Silver 7440224 3.46E-08 4.36E-09 1.98E-04 2.84E-09 bf108 BF108 FM-BE-103 Cement Storage Distribution Dust Collector Finish Grinding Department Thallium 7440280 3.19E-08 4.02E-09 1.82E-04 2.62E-09 bf108 BF108 FM-BE-103 Cement Storage Distribution Dust Collector Finish Grinding Department Vanadium 7440622 2.66E-05 3.35E-06 1.52E-01 2.19E-06 bf108 BF108 FM-BE-103 Cement Storage Distribution Dust Collector Finish Grinding Department Zinc 7440666 1.04E-04 1.31E-05 5.93E-01 8.53E-06 bf200 BF200 Mill separator dust collector Finish Grinding Department Antimony 7440360 5.73E-07 7.22E-08 3.27E-03 4.71E-08 bf200 BF200 Mill separator dust collector Finish Grinding Department Arsenic 7440382 3.15E-05 3.97E-06 1.80E-01 2.59E-06 bf200 BF200 Mill separator dust collector Finish Grinding Department Barium 7440393 6.30E-04 7.94E-05 3.60E+00 5.18E-05 bf200 BF200 Mill separator dust collector Finish Grinding Department Beryllium 7440417 6.30E-07 7.94E-08 3.60E-03 5.18E-08 bf200 BF200 Mill separator dust collector Finish Grinding Department Cadmium 7440439 3.72E-06 4.69E-07 2.13E-02 3.06E-07 bf200 BF200 Mill separator dust collector Finish Grinding Department Chromium 7440473 1.20E-04 1.52E-05 6.88E-01 9.89E-06 bf200 BF200 Mill separator dust collector Finish Grinding Department Cobalt 7440484 2.78E-05 3.50E-06 1.59E-01 2.28E-06 bf200 BF200 Mill separator dust collector Finish Grinding Department Copper 7440508 5.73E-07 7.22E-08 3.27E-03 4.71E-08 bf200 BF200 Mill separator dust collector Finish Grinding Department Crystalline Silica 1175 3.15E-05 3.97E-06 1.80E-01 2.59E-06 bf200 BF200 Mill separator dust collector Finish Grinding Department Hexavalent Chromium 18540299 4.58E-05 5.77E-06 2.62E-01 3.77E-06 bf200 BF200 Mill separator dust collector Finish Grinding Department Lead 7439921 1.49E-05 1.88E-06 8.51E-02 1.22E-06 bf200 BF200 Mill separator dust collector Finish Grinding Department Manganese 7439965 3.72E-03 4.69E-04 2.13E+01 3.06E-04 bf200 BF200 Mill separator dust collector Finish Grinding Department Mercury 7439976 1.43E-07 1.80E-08 8.19E-04 1.18E-08 bf200 BF200 Mill separator dust collector Finish Grinding Department Nickel 7440020 1.12E-04 1.41E-05 6.39E-01 9.19E-06 bf200 BF200 Mill separator dust collector Finish Grinding Department Selenium 7782492 3.72E-06 4.69E-07 2.13E-02 3.06E-07 bf200 BF200 Mill separator dust collector Finish Grinding Department Silver 7440224 3.72E-07 4.69E-08 2.13E-03 3.06E-08 bf200 BF200 Mill separator dust collector Finish Grinding Department Thallium 7440280 3.44E-07 4.33E-08 1.96E-03 2.83E-08 bf200 BF200 Mill separator dust collector Finish Grinding Department Vanadium 7440622 2.86E-04 3.61E-05 1.64E+00 2.36E-05 bf200 BF200 Mill separator dust collector Finish Grinding Department Zinc 7440666 1.12E-03 1.41E-04 6.39E+00 9.19E-05 bf300 BF300 Mill sweep dust collector Finish Grinding Department Antimony 7440360 1.64E-07 2.06E-08 9.36E-04 1.35E-08 bf300 BF300 Mill sweep dust collector Finish Grinding Department Arsenic 7440382 9.00E-06 1.13E-06 5.15E-02 7.40E-07 bf300 BF300 Mill sweep dust collector Finish Grinding Department Barium 7440393 1.80E-04 2.27E-05 1.03E+00 1.48E-05 bf300 BF300 Mill sweep dust collector Finish Grinding Department Beryllium 7440417 1.80E-07 2.27E-08 1.03E-03 1.48E-08 bf300 BF300 Mill sweep dust collector Finish Grinding Department Cadmium 7440439 1.06E-06 1.34E-07 6.08E-03 8.75E-08 bf300 BF300 Mill sweep dust collector Finish Grinding Department Chromium 7440473 3.44E-05 4.33E-06 1.96E-01 2.83E-06 bf300 BF300 Mill sweep dust collector Finish Grinding Department Cobalt 7440484 7.94E-06 1.00E-06 4.54E-02 6.53E-07 bf300 BF300 Mill sweep dust collector Finish Grinding Department Copper 7440508 1.64E-07 2.06E-08 9.36E-04 1.35E-08 bf300 BF300 Mill sweep dust collector Finish Grinding Department Crystalline Silica 1175 9.00E-06 1.13E-06 5.15E-02 7.40E-07 bf300 BF300 Mill sweep dust collector Finish Grinding Department Hexavalent Chromium 18540299 1.31E-05 1.65E-06 7.49E-02 1.08E-06 bf300 BF300 Mill sweep dust collector Finish Grinding Department Lead 7439921 4.25E-06 5.36E-07 2.43E-02 3.50E-07 bf300 BF300 Mill sweep dust collector Finish Grinding Department Manganese 7439965 1.06E-03 1.34E-04 6.08E+00 8.75E-05 bf300 BF300 Mill sweep dust collector Finish Grinding Department Mercury 7439976 4.09E-08 5.15E-09 2.34E-04 3.36E-09 bf300 BF300 Mill sweep dust collector Finish Grinding Department Nickel 7440020 3.19E-05 4.02E-06 1.82E-01 2.62E-06 bf300 BF300 Mill sweep dust collector Finish Grinding Department Selenium 7782492 1.06E-06 1.34E-07 6.08E-03 8.75E-08 bf300 BF300 Mill sweep dust collector Finish Grinding Department Silver 7440224 1.06E-07 1.34E-08 6.08E-04 8.75E-09 bf300 BF300 Mill sweep dust collector Finish Grinding Department Thallium 7440280 9.82E-08 1.24E-08 5.61E-04 8.08E-09 bf300 BF300 Mill sweep dust collector Finish Grinding Department Vanadium 7440622 8.18E-05 1.03E-05 4.68E-01 6.73E-06 bf300 BF300 Mill sweep dust collector Finish Grinding Department Zinc 7440666 3.19E-04 4.02E-05 1.82E+00 2.62E-05 j162 J-162 General Dust Collector Storage and Shipping Department Antimony 7440360 5.51E-08 6.94E-09 4.80E-04 6.91E-09 j162 J-162 General Dust Collector Storage and Shipping Department Arsenic 7440382 3.03E-06 3.82E-07 2.64E-02 3.80E-07 j162 J-162 General Dust Collector Storage and Shipping Department Barium 7440393 6.06E-05 7.64E-06 5.28E-01 7.60E-06 j162 J-162 General Dust Collector Storage and Shipping Department Beryllium 7440417 6.06E-08 7.64E-09 5.28E-04 7.60E-09 j162 J-162 General Dust Collector Storage and Shipping Department Cadmium 7440439 3.58E-07 4.51E-08 3.12E-03 4.49E-08 j162 J-162 General Dust Collector Storage and Shipping Department Chromium 7440473 1.16E-05 1.46E-06 1.01E-01 1.45E-06 j162 J-162 General Dust Collector Storage and Shipping Department Cobalt 7440484 2.67E-06 3.37E-07 2.33E-02 3.35E-07 j162 J-162 General Dust Collector Storage and Shipping Department Copper 7440508 1.49E-05 1.87E-06 1.30E-01 1.87E-06 j162 J-162 General Dust Collector Storage and Shipping Department Crystalline Silica 1175 2.75E-05 3.47E-06 2.40E-01 3.45E-06 j162 J-162 General Dust Collector Storage and Shipping Department Hexavalent Chromium 18540299 4.41E-06 5.55E-07 3.84E-02 5.53E-07 j162 J-162 General Dust Collector Storage and Shipping Department Lead 7439921 1.43E-06 1.80E-07 1.25E-02 1.80E-07 j162 J-162 General Dust Collector Storage and Shipping Department Manganese 7439965 3.58E-04 4.51E-05 3.12E+00 4.49E-05 j162 J-162 General Dust Collector Storage and Shipping Department Mercury 7439976 1.38E-08 1.74E-09 1.20E-04 1.73E-09 j162 J-162 General Dust Collector Storage and Shipping Department Nickel 7440020 1.07E-05 1.35E-06 9.37E-02 1.35E-06 j162 J-162 General Dust Collector Storage and Shipping Department Selenium 7782492 3.58E-07 4.51E-08 3.12E-03 4.49E-08 j162 J-162 General Dust Collector Storage and Shipping Department Silver 7440224 3.58E-08 4.51E-09 3.12E-04 4.49E-09 j162 J-162 General Dust Collector Storage and Shipping Department Thallium 7440280 3.31E-08 4.17E-09 2.88E-04 4.15E-09 j162 J-162 General Dust Collector Storage and Shipping Department Vanadium 7440622 2.75E-05 3.47E-06 2.40E-01 3.45E-06 j162 J-162 General Dust Collector Storage and Shipping Department Zinc 7440666 1.07E-04 1.35E-05 9.37E-01 1.35E-05 j165 J-165 East Packer Dust Collector Storage and Shipping Department Antimony 7440360 1.86E-07 2.34E-08 9.11E-06 1.31E-10 j165 J-165 East Packer Dust Collector Storage and Shipping Department Arsenic 7440382 1.02E-05 1.29E-06 5.01E-04 7.21E-09 j165 J-165 East Packer Dust Collector Storage and Shipping Department Barium 7440393 2.05E-04 2.58E-05 1.00E-02 1.44E-07 j165 J-165 East Packer Dust Collector Storage and Shipping Department Beryllium 7440417 2.05E-07 2.58E-08 1.00E-05 1.44E-10 j165 J-165 East Packer Dust Collector Storage and Shipping Department Cadmium 7440439 1.21E-06 1.52E-07 5.92E-05 8.52E-10 j165 J-165 East Packer Dust Collector Storage and Shipping Department Chromium 7440473 3.90E-05 4.92E-06 1.91E-03 2.75E-08 j165 J-165 East Packer Dust Collector Storage and Shipping Department Cobalt 7440484 9.02E-06 1.14E-06 4.42E-04 6.35E-09 j165 J-165 East Packer Dust Collector Storage and Shipping Department Copper 7440508 5.02E-05 6.32E-06 2.46E-03 3.54E-08 j165 J-165 East Packer Dust Collector Storage and Shipping Department Crystalline Silica 1175 9.30E-05 1.17E-05 4.55E-03 6.55E-08 j165 J-165 East Packer Dust Collector Storage and Shipping Department Hexavalent Chromium 18540299 1.49E-05 1.87E-06 7.29E-04 1.05E-08 j165 J-165 East Packer Dust Collector Storage and Shipping Department Lead 7439921 4.83E-06 6.09E-07 2.37E-04 3.41E-09 j165 J-165 East Packer Dust Collector Storage and Shipping Department Manganese 7439965 1.21E-03 1.52E-04 5.92E-02 8.52E-07 j165 J-165 East Packer Dust Collector Storage and Shipping Department Mercury 7439976 4.65E-08 5.86E-09 2.28E-06 3.28E-11 j165 J-165 East Packer Dust Collector Storage and Shipping Department Nickel 7440020 3.63E-05 4.57E-06 1.78E-03 2.56E-08 j165 J-165 East Packer Dust Collector Storage and Shipping Department Selenium 7782492 1.21E-06 1.52E-07 5.92E-05 8.52E-10 j165 J-165 East Packer Dust Collector Storage and Shipping Department Silver 7440224 1.21E-07 1.52E-08 5.92E-06 8.52E-11 j165 J-165 East Packer Dust Collector Storage and Shipping Department Thallium 7440280 1.12E-07 1.41E-08 5.47E-06 7.86E-11 j165 J-165 East Packer Dust Collector Storage and Shipping Department Vanadium 7440622 9.30E-05 1.17E-05 4.55E-03 6.55E-08 j165 J-165 East Packer Dust Collector Storage and Shipping Department Zinc 7440666 3.63E-04 4.57E-05 1.78E-02 2.56E-07 j168 J-168 West Packer Dust Collector Storage and Shipping Department Antimony 7440360 6.20E-08 7.81E-09 8.40E-05 1.21E-09 j168 J-168 West Packer Dust Collector Storage and Shipping Department Arsenic 7440382 3.41E-06 4.29E-07 4.62E-03 6.64E-08 j168 J-168 West Packer Dust Collector Storage and Shipping Department Barium 7440393 6.82E-05 8.59E-06 9.24E-02 1.33E-06 j168 J-168 West Packer Dust Collector Storage and Shipping Department Beryllium 7440417 6.82E-08 8.59E-09 9.24E-05 1.33E-09 j168 J-168 West Packer Dust Collector Storage and Shipping Department Cadmium 7440439 4.03E-07 5.08E-08 5.46E-04 7.85E-09 j168 J-168 West Packer Dust Collector Storage and Shipping Department Chromium 7440473 1.30E-05 1.64E-06 1.76E-02 2.54E-07 j168 J-168 West Packer Dust Collector Storage and Shipping Department Cobalt 7440484 3.01E-06 3.79E-07 4.07E-03 5.86E-08 j168 J-168 West Packer Dust Collector Storage and Shipping Department Copper 7440508 1.67E-05 2.11E-06 2.27E-02 3.26E-07 j168 J-168 West Packer Dust Collector Storage and Shipping Department Crystalline Silica 1175 3.10E-05 3.90E-06 4.20E-02 6.04E-07 j168 J-168 West Packer Dust Collector Storage and Shipping Department Hexavalent Chromium 18540299 4.96E-06 6.25E-07 6.72E-03 9.66E-08 j168 J-168 West Packer Dust Collector Storage and Shipping Department Lead 7439921 1.61E-06 2.03E-07 2.18E-03 3.14E-08 j168 J-168 West Packer Dust Collector Storage and Shipping Department Manganese 7439965 4.03E-04 5.08E-05 5.46E-01 7.85E-06 j168 J-168 West Packer Dust Collector Storage and Shipping Department Mercury 7439976 1.55E-08 1.95E-09 2.10E-05 3.02E-10 j168 J-168 West Packer Dust Collector Storage and Shipping Department Nickel 7440020 1.21E-05 1.52E-06 1.64E-02 2.36E-07 j168 J-168 West Packer Dust Collector Storage and Shipping Department Selenium 7782492 4.03E-07 5.08E-08 5.46E-04 7.85E-09 j168 J-168 West Packer Dust Collector Storage and Shipping Department Silver 7440224 4.03E-08 5.08E-09 5.46E-05 7.85E-10 j168 J-168 West Packer Dust Collector Storage and Shipping Department Thallium 7440280 3.72E-08 4.68E-09 5.04E-05 7.25E-10 j168 J-168 West Packer Dust Collector Storage and Shipping Department Vanadium 7440622 3.10E-05 3.90E-06 4.20E-02 6.04E-07 j168 J-168 West Packer Dust Collector Storage and Shipping Department Zinc 7440666 1.21E-04 1.52E-05 1.64E-01 2.36E-06 j174 J-174 Truck Silos Dust Collector Storage and Shipping Department Antimony 7440360 4.78E-08 6.03E-09 4.04E-04 5.80E-09 j174 J-174 Truck Silos Dust Collector Storage and Shipping Department Arsenic 7440382 2.63E-06 3.31E-07 2.22E-02 3.19E-07 209
Table 2a. Emission Rate by Substance and Source
CalPortland Company
Permit Number: 02‐VP‐07b
Stack ID Source ID Source Name Plant Area Substance Name CAS No. 1-hour Maximum (lb/hr)
1-Hour Maximum
(g/s)
Annual Average
(lb/yr)
Annual Average
(g/s)
j174 J-174 Truck Silos Dust Collector Storage and Shipping Department Barium 7440393 5.26E-05 6.63E-06 4.44E-01 6.38E-06 j174 J-174 Truck Silos Dust Collector Storage and Shipping Department Beryllium 7440417 5.26E-08 6.63E-09 4.44E-04 6.38E-09 j174 J-174 Truck Silos Dust Collector Storage and Shipping Department Cadmium 7440439 3.11E-07 3.92E-08 2.62E-03 3.77E-08 j174 J-174 Truck Silos Dust Collector Storage and Shipping Department Chromium 7440473 1.00E-05 1.27E-06 8.47E-02 1.22E-06 j174 J-174 Truck Silos Dust Collector Storage and Shipping Department Cobalt 7440484 2.32E-06 2.92E-07 1.96E-02 2.81E-07 j174 J-174 Truck Silos Dust Collector Storage and Shipping Department Copper 7440508 1.29E-05 1.63E-06 1.09E-01 1.57E-06 j174 J-174 Truck Silos Dust Collector Storage and Shipping Department Crystalline Silica 1175 2.39E-05 3.01E-06 2.02E-01 2.90E-06 j174 J-174 Truck Silos Dust Collector Storage and Shipping Department Hexavalent Chromium 18540299 3.83E-06 4.82E-07 3.23E-02 4.64E-07 j174 J-174 Truck Silos Dust Collector Storage and Shipping Department Lead 7439921 1.24E-06 1.57E-07 1.05E-02 1.51E-07 j174 J-174 Truck Silos Dust Collector Storage and Shipping Department Manganese 7439965 3.11E-04 3.92E-05 2.62E+00 3.77E-05 j174 J-174 Truck Silos Dust Collector Storage and Shipping Department Mercury 7439976 1.20E-08 1.51E-09 1.01E-04 1.45E-09 j174 J-174 Truck Silos Dust Collector Storage and Shipping Department Nickel 7440020 9.33E-06 1.18E-06 7.87E-02 1.13E-06 j174 J-174 Truck Silos Dust Collector Storage and Shipping Department Selenium 7782492 3.11E-07 3.92E-08 2.62E-03 3.77E-08 j174 J-174 Truck Silos Dust Collector Storage and Shipping Department Silver 7440224 3.11E-08 3.92E-09 2.62E-04 3.77E-09 j174 J-174 Truck Silos Dust Collector Storage and Shipping Department Thallium 7440280 2.87E-08 3.62E-09 2.42E-04 3.48E-09 j174 J-174 Truck Silos Dust Collector Storage and Shipping Department Vanadium 7440622 2.39E-05 3.01E-06 2.02E-01 2.90E-06 j174 J-174 Truck Silos Dust Collector Storage and Shipping Department Zinc 7440666 9.33E-05 1.18E-05 7.87E-01 1.13E-05 j257 J-257 Truck Special Load Spout Storage and Shipping Department Antimony 7440360 6.43E-08 8.10E-09 9.09E-05 1.31E-09 j257 J-257 Truck Special Load Spout Storage and Shipping Department Arsenic 7440382 3.54E-06 4.45E-07 5.00E-03 7.19E-08 j257 J-257 Truck Special Load Spout Storage and Shipping Department Barium 7440393 7.07E-05 8.91E-06 1.00E-01 1.44E-06 j257 J-257 Truck Special Load Spout Storage and Shipping Department Beryllium 7440417 7.07E-08 8.91E-09 1.00E-04 1.44E-09 j257 J-257 Truck Special Load Spout Storage and Shipping Department Cadmium 7440439 4.18E-07 5.26E-08 5.91E-04 8.50E-09 j257 J-257 Truck Special Load Spout Storage and Shipping Department Chromium 7440473 1.35E-05 1.70E-06 1.91E-02 2.75E-07 j257 J-257 Truck Special Load Spout Storage and Shipping Department Cobalt 7440484 3.12E-06 3.93E-07 4.41E-03 6.34E-08 j257 J-257 Truck Special Load Spout Storage and Shipping Department Copper 7440508 1.74E-05 2.19E-06 2.45E-02 3.53E-07 j257 J-257 Truck Special Load Spout Storage and Shipping Department Crystalline Silica 1175 3.21E-05 4.05E-06 4.54E-02 6.54E-07 j257 J-257 Truck Special Load Spout Storage and Shipping Department Hexavalent Chromium 18540299 5.14E-06 6.48E-07 7.27E-03 1.05E-07 j257 J-257 Truck Special Load Spout Storage and Shipping Department Lead 7439921 1.67E-06 2.11E-07 2.36E-03 3.40E-08 j257 J-257 Truck Special Load Spout Storage and Shipping Department Manganese 7439965 4.18E-04 5.26E-05 5.91E-01 8.50E-06 j257 J-257 Truck Special Load Spout Storage and Shipping Department Mercury 7439976 1.61E-08 2.02E-09 2.27E-05 3.27E-10 j257 J-257 Truck Special Load Spout Storage and Shipping Department Nickel 7440020 1.25E-05 1.58E-06 1.77E-02 2.55E-07 j257 J-257 Truck Special Load Spout Storage and Shipping Department Selenium 7782492 4.18E-07 5.26E-08 5.91E-04 8.50E-09 j257 J-257 Truck Special Load Spout Storage and Shipping Department Silver 7440224 4.18E-08 5.26E-09 5.91E-05 8.50E-10 j257 J-257 Truck Special Load Spout Storage and Shipping Department Thallium 7440280 3.86E-08 4.86E-09 5.45E-05 7.84E-10 j257 J-257 Truck Special Load Spout Storage and Shipping Department Vanadium 7440622 3.21E-05 4.05E-06 4.54E-02 6.54E-07 j257 J-257 Truck Special Load Spout Storage and Shipping Department Zinc 7440666 1.25E-04 1.58E-05 1.77E-01 2.55E-06 j321 J-321 West Rail Silo Dust Collector Storage and Shipping Department Antimony 7440360 4.23E-08 5.32E-09 8.28E-05 1.19E-09 j321 J-321 West Rail Silo Dust Collector Storage and Shipping Department Arsenic 7440382 2.32E-06 2.93E-07 4.55E-03 6.55E-08 j321 J-321 West Rail Silo Dust Collector Storage and Shipping Department Barium 7440393 4.65E-05 5.86E-06 9.11E-02 1.31E-06 j321 J-321 West Rail Silo Dust Collector Storage and Shipping Department Beryllium 7440417 4.65E-08 5.86E-09 9.11E-05 1.31E-09 j321 J-321 West Rail Silo Dust Collector Storage and Shipping Department Cadmium 7440439 2.75E-07 3.46E-08 5.38E-04 7.74E-09 j321 J-321 West Rail Silo Dust Collector Storage and Shipping Department Chromium 7440473 8.87E-06 1.12E-06 1.74E-02 2.50E-07 j321 J-321 West Rail Silo Dust Collector Storage and Shipping Department Cobalt 7440484 2.05E-06 2.58E-07 4.02E-03 5.78E-08 j321 J-321 West Rail Silo Dust Collector Storage and Shipping Department Copper 7440508 1.14E-05 1.44E-06 2.24E-02 3.22E-07 j321 J-321 West Rail Silo Dust Collector Storage and Shipping Department Crystalline Silica 1175 2.11E-05 2.66E-06 4.14E-02 5.95E-07 j321 J-321 West Rail Silo Dust Collector Storage and Shipping Department Hexavalent Chromium 18540299 3.38E-06 4.26E-07 6.62E-03 9.53E-08 j321 J-321 West Rail Silo Dust Collector Storage and Shipping Department Lead 7439921 1.10E-06 1.38E-07 2.15E-03 3.10E-08 j321 J-321 West Rail Silo Dust Collector Storage and Shipping Department Manganese 7439965 2.75E-04 3.46E-05 5.38E-01 7.74E-06 j321 J-321 West Rail Silo Dust Collector Storage and Shipping Department Mercury 7439976 1.06E-08 1.33E-09 2.07E-05 2.98E-10 j321 J-321 West Rail Silo Dust Collector Storage and Shipping Department Nickel 7440020 8.24E-06 1.04E-06 1.61E-02 2.32E-07 j321 J-321 West Rail Silo Dust Collector Storage and Shipping Department Selenium 7782492 2.75E-07 3.46E-08 5.38E-04 7.74E-09 j321 J-321 West Rail Silo Dust Collector Storage and Shipping Department Silver 7440224 2.75E-08 3.46E-09 5.38E-05 7.74E-10 j321 J-321 West Rail Silo Dust Collector Storage and Shipping Department Thallium 7440280 2.54E-08 3.19E-09 4.97E-05 7.15E-10 j321 J-321 West Rail Silo Dust Collector Storage and Shipping Department Vanadium 7440622 2.11E-05 2.66E-06 4.14E-02 5.95E-07 j321 J-321 West Rail Silo Dust Collector Storage and Shipping Department Zinc 7440666 8.24E-05 1.04E-05 1.61E-01 2.32E-06 j345 J-345 East Rail Silo Dust Collector Storage and Shipping Department Antimony 7440360 4.23E-08 5.32E-09 8.40E-05 1.21E-09 j345 J-345 East Rail Silo Dust Collector Storage and Shipping Department Arsenic 7440382 2.32E-06 2.93E-07 4.62E-03 6.65E-08 j345 J-345 East Rail Silo Dust Collector Storage and Shipping Department Barium 7440393 4.65E-05 5.86E-06 9.24E-02 1.33E-06 j345 J-345 East Rail Silo Dust Collector Storage and Shipping Department Beryllium 7440417 4.65E-08 5.86E-09 9.24E-05 1.33E-09 j345 J-345 East Rail Silo Dust Collector Storage and Shipping Department Cadmium 7440439 2.75E-07 3.46E-08 5.46E-04 7.86E-09 j345 J-345 East Rail Silo Dust Collector Storage and Shipping Department Chromium 7440473 8.87E-06 1.12E-06 1.76E-02 2.54E-07 j345 J-345 East Rail Silo Dust Collector Storage and Shipping Department Cobalt 7440484 2.05E-06 2.58E-07 4.07E-03 5.86E-08 j345 J-345 East Rail Silo Dust Collector Storage and Shipping Department Copper 7440508 1.14E-05 1.44E-06 2.27E-02 3.26E-07 j345 J-345 East Rail Silo Dust Collector Storage and Shipping Department Crystalline Silica 1175 2.11E-05 2.66E-06 4.20E-02 6.04E-07 j345 J-345 East Rail Silo Dust Collector Storage and Shipping Department Hexavalent Chromium 18540299 3.38E-06 4.26E-07 6.72E-03 9.67E-08 j345 J-345 East Rail Silo Dust Collector Storage and Shipping Department Lead 7439921 1.10E-06 1.38E-07 2.18E-03 3.14E-08 j345 J-345 East Rail Silo Dust Collector Storage and Shipping Department Manganese 7439965 2.75E-04 3.46E-05 5.46E-01 7.86E-06 j345 J-345 East Rail Silo Dust Collector Storage and Shipping Department Mercury 7439976 1.06E-08 1.33E-09 2.10E-05 3.02E-10 j345 J-345 East Rail Silo Dust Collector Storage and Shipping Department Nickel 7440020 8.24E-06 1.04E-06 1.64E-02 2.36E-07 j345 J-345 East Rail Silo Dust Collector Storage and Shipping Department Selenium 7782492 2.75E-07 3.46E-08 5.46E-04 7.86E-09 j345 J-345 East Rail Silo Dust Collector Storage and Shipping Department Silver 7440224 2.75E-08 3.46E-09 5.46E-05 7.86E-10 j345 J-345 East Rail Silo Dust Collector Storage and Shipping Department Thallium 7440280 2.54E-08 3.19E-09 5.04E-05 7.25E-10 j345 J-345 East Rail Silo Dust Collector Storage and Shipping Department Vanadium 7440622 2.11E-05 2.66E-06 4.20E-02 6.04E-07 j345 J-345 East Rail Silo Dust Collector Storage and Shipping Department Zinc 7440666 8.24E-05 1.04E-05 1.64E-01 2.36E-06 j350 J-350 Rail Silos Dust Collector Storage and Shipping Department Antimony 7440360 6.02E-08 7.58E-09 1.51E-04 2.17E-09 j350 J-350 Rail Silos Dust Collector Storage and Shipping Department Arsenic 7440382 3.31E-06 4.17E-07 8.29E-03 1.19E-07 j350 J-350 Rail Silos Dust Collector Storage and Shipping Department Barium 7440393 6.62E-05 8.34E-06 1.66E-01 2.39E-06 j350 J-350 Rail Silos Dust Collector Storage and Shipping Department Beryllium 7440417 6.62E-08 8.34E-09 1.66E-04 2.39E-09 j350 J-350 Rail Silos Dust Collector Storage and Shipping Department Cadmium 7440439 3.91E-07 4.93E-08 9.80E-04 1.41E-08 j350 J-350 Rail Silos Dust Collector Storage and Shipping Department Chromium 7440473 1.26E-05 1.59E-06 3.17E-02 4.55E-07 j350 J-350 Rail Silos Dust Collector Storage and Shipping Department Cobalt 7440484 2.92E-06 3.68E-07 7.31E-03 1.05E-07 j350 J-350 Rail Silos Dust Collector Storage and Shipping Department Copper 7440508 1.62E-05 2.05E-06 4.07E-02 5.86E-07 j350 J-350 Rail Silos Dust Collector Storage and Shipping Department Crystalline Silica 1175 3.01E-05 3.79E-06 7.54E-02 1.08E-06 j350 J-350 Rail Silos Dust Collector Storage and Shipping Department Hexavalent Chromium 18540299 4.81E-06 6.07E-07 1.21E-02 1.74E-07 j350 J-350 Rail Silos Dust Collector Storage and Shipping Department Lead 7439921 1.56E-06 1.97E-07 3.92E-03 5.64E-08 j350 J-350 Rail Silos Dust Collector Storage and Shipping Department Manganese 7439965 3.91E-04 4.93E-05 9.80E-01 1.41E-05 j350 J-350 Rail Silos Dust Collector Storage and Shipping Department Mercury 7439976 1.50E-08 1.90E-09 3.77E-05 5.42E-10 j350 J-350 Rail Silos Dust Collector Storage and Shipping Department Nickel 7440020 1.17E-05 1.48E-06 2.94E-02 4.23E-07 j350 J-350 Rail Silos Dust Collector Storage and Shipping Department Selenium 7782492 3.91E-07 4.93E-08 9.80E-04 1.41E-08 j350 J-350 Rail Silos Dust Collector Storage and Shipping Department Silver 7440224 3.91E-08 4.93E-09 9.80E-05 1.41E-09 j350 J-350 Rail Silos Dust Collector Storage and Shipping Department Thallium 7440280 3.61E-08 4.55E-09 9.05E-05 1.30E-09 j350 J-350 Rail Silos Dust Collector Storage and Shipping Department Vanadium 7440622 3.01E-05 3.79E-06 7.54E-02 1.08E-06 j350 J-350 Rail Silos Dust Collector Storage and Shipping Department Zinc 7440666 1.17E-04 1.48E-05 2.94E-01 4.23E-06 j387 J-387 Truck Silo #4 Dust Collector Storage and Shipping Department Antimony 7440360 8.49E-08 1.07E-08 7.31E-06 1.05E-10 j387 J-387 Truck Silo #4 Dust Collector Storage and Shipping Department Arsenic 7440382 4.67E-06 5.88E-07 4.02E-04 5.78E-09 j387 J-387 Truck Silo #4 Dust Collector Storage and Shipping Department Barium 7440393 9.33E-05 1.18E-05 8.04E-03 1.16E-07 j387 J-387 Truck Silo #4 Dust Collector Storage and Shipping Department Beryllium 7440417 9.33E-08 1.18E-08 8.04E-06 1.16E-10 j387 J-387 Truck Silo #4 Dust Collector Storage and Shipping Department Cadmium 7440439 5.52E-07 6.95E-08 4.75E-05 6.83E-10 j387 J-387 Truck Silo #4 Dust Collector Storage and Shipping Department Chromium 7440473 1.78E-05 2.25E-06 1.53E-03 2.21E-08 j387 J-387 Truck Silo #4 Dust Collector Storage and Shipping Department Cobalt 7440484 4.12E-06 5.19E-07 3.54E-04 5.10E-09 j387 J-387 Truck Silo #4 Dust Collector Storage and Shipping Department Copper 7440508 2.29E-05 2.89E-06 1.97E-03 2.84E-08 j387 J-387 Truck Silo #4 Dust Collector Storage and Shipping Department Crystalline Silica 1175 4.24E-05 5.35E-06 3.65E-03 5.25E-08 j387 J-387 Truck Silo #4 Dust Collector Storage and Shipping Department Hexavalent Chromium 18540299 6.79E-06 8.55E-07 5.85E-04 8.41E-09 j387 J-387 Truck Silo #4 Dust Collector Storage and Shipping Department Lead 7439921 2.21E-06 2.78E-07 1.90E-04 2.73E-09 j387 J-387 Truck Silo #4 Dust Collector Storage and Shipping Department Manganese 7439965 5.52E-04 6.95E-05 4.75E-02 6.83E-07 j387 J-387 Truck Silo #4 Dust Collector Storage and Shipping Department Mercury 7439976 2.12E-08 2.67E-09 1.83E-06 2.63E-11 j387 J-387 Truck Silo #4 Dust Collector Storage and Shipping Department Nickel 7440020 1.65E-05 2.08E-06 1.42E-03 2.05E-08 j387 J-387 Truck Silo #4 Dust Collector Storage and Shipping Department Selenium 7782492 5.52E-07 6.95E-08 4.75E-05 6.83E-10 j387 J-387 Truck Silo #4 Dust Collector Storage and Shipping Department Silver 7440224 5.52E-08 6.95E-09 4.75E-06 6.83E-11 j387 J-387 Truck Silo #4 Dust Collector Storage and Shipping Department Thallium 7440280 5.09E-08 6.42E-09 4.38E-06 6.31E-11 j387 J-387 Truck Silo #4 Dust Collector Storage and Shipping Department Vanadium 7440622 4.24E-05 5.35E-06 3.65E-03 5.25E-08 j387 J-387 Truck Silo #4 Dust Collector Storage and Shipping Department Zinc 7440666 1.65E-04 2.08E-05 1.42E-02 2.05E-07 j390 J-390 Truck Vacuum Dust Collector Storage and Shipping Department Antimony 7440360 3.88E-08 4.89E-09 7.27E-05 1.05E-09 j390 J-390 Truck Vacuum Dust Collector Storage and Shipping Department Arsenic 7440382 2.14E-06 2.69E-07 4.00E-03 5.75E-08 j390 J-390 Truck Vacuum Dust Collector Storage and Shipping Department Barium 7440393 4.27E-05 5.38E-06 8.00E-02 1.15E-06 j390 J-390 Truck Vacuum Dust Collector Storage and Shipping Department Beryllium 7440417 4.27E-08 5.38E-09 8.00E-05 1.15E-09 j390 J-390 Truck Vacuum Dust Collector Storage and Shipping Department Cadmium 7440439 2.52E-07 3.18E-08 4.73E-04 6.80E-09 j390 J-390 Truck Vacuum Dust Collector Storage and Shipping Department Chromium 7440473 8.15E-06 1.03E-06 1.53E-02 2.20E-07 j390 J-390 Truck Vacuum Dust Collector Storage and Shipping Department Cobalt 7440484 1.88E-06 2.37E-07 3.53E-03 5.07E-08 210
Table 2a. Emission Rate by Substance and Source
CalPortland Company
Permit Number: 02‐VP‐07b
Stack ID Source ID Source Name Plant Area Substance Name CAS No. 1-hour Maximum (lb/hr)
1-Hour Maximum
(g/s)
Annual Average
(lb/yr)
Annual Average
(g/s)
j390 J-390 Truck Vacuum Dust Collector Storage and Shipping Department Copper 7440508 1.05E-05 1.32E-06 1.96E-02 2.82E-07 j390 J-390 Truck Vacuum Dust Collector Storage and Shipping Department Crystalline Silica 1175 1.94E-05 2.45E-06 3.63E-02 5.23E-07 j390 J-390 Truck Vacuum Dust Collector Storage and Shipping Department Hexavalent Chromium 18540299 3.11E-06 3.91E-07 5.82E-03 8.36E-08 j390 J-390 Truck Vacuum Dust Collector Storage and Shipping Department Lead 7439921 1.01E-06 1.27E-07 1.89E-03 2.72E-08 j390 J-390 Truck Vacuum Dust Collector Storage and Shipping Department Manganese 7439965 2.52E-04 3.18E-05 4.73E-01 6.80E-06 j390 J-390 Truck Vacuum Dust Collector Storage and Shipping Department Mercury 7439976 9.71E-09 1.22E-09 1.82E-05 2.61E-10 j390 J-390 Truck Vacuum Dust Collector Storage and Shipping Department Nickel 7440020 7.57E-06 9.54E-07 1.42E-02 2.04E-07 j390 J-390 Truck Vacuum Dust Collector Storage and Shipping Department Selenium 7782492 2.52E-07 3.18E-08 4.73E-04 6.80E-09 j390 J-390 Truck Vacuum Dust Collector Storage and Shipping Department Silver 7440224 2.52E-08 3.18E-09 4.73E-05 6.80E-10 j390 J-390 Truck Vacuum Dust Collector Storage and Shipping Department Thallium 7440280 2.33E-08 2.94E-09 4.36E-05 6.27E-10 j390 J-390 Truck Vacuum Dust Collector Storage and Shipping Department Vanadium 7440622 1.94E-05 2.45E-06 3.63E-02 5.23E-07 j390 J-390 Truck Vacuum Dust Collector Storage and Shipping Department Zinc 7440666 7.57E-05 9.54E-06 1.42E-01 2.04E-06 s260 S-260 Kiln/Raw Mill Raw Milling and Kiln Department Aluminum 7429905 5.34E-02 6.73E-03 2.83E+02 4.07E-03 s260 S-260 Kiln/Raw Mill Raw Milling and Kiln Department Antimony 7440360 2.42E-04 3.05E-05 1.19E+00 1.72E-05 s260 S-260 Kiln/Raw Mill Raw Milling and Kiln Department Arsenic 7440382 2.63E-05 3.32E-06 1.35E-01 1.94E-06 s260 S-260 Kiln/Raw Mill Raw Milling and Kiln Department Barium 7440393 6.60E-04 8.32E-05 3.46E+00 4.97E-05 s260 S-260 Kiln/Raw Mill Raw Milling and Kiln Department Beryllium 7440417 8.52E-06 1.07E-06 4.27E-02 6.14E-07 s260 S-260 Kiln/Raw Mill Raw Milling and Kiln Department Cadmium 7440439 1.29E-05 1.62E-06 6.62E-02 9.52E-07 s260 S-260 Kiln/Raw Mill Raw Milling and Kiln Department Chromium 7440473 1.87E-04 2.35E-05 9.80E-01 1.41E-05 s260 S-260 Kiln/Raw Mill Raw Milling and Kiln Department Cobalt 7440484 2.89E-05 3.64E-06 1.49E-01 2.15E-06 s260 S-260 Kiln/Raw Mill Raw Milling and Kiln Department Copper 7440508 1.59E-05 2.01E-06 4.00E-02 5.75E-07 s260 S-260 Kiln/Raw Mill Raw Milling and Kiln Department Lead 7439921 9.17E-05 1.16E-05 4.17E-01 6.00E-06 s260 S-260 Kiln/Raw Mill Raw Milling and Kiln Department Manganese 7439965 2.08E-03 2.62E-04 1.10E+01 1.58E-04 s260 S-260 Kiln/Raw Mill Raw Milling and Kiln Department Nickel 7440020 8.29E-05 1.04E-05 3.99E-01 5.74E-06 s260 S-260 Kiln/Raw Mill Raw Milling and Kiln Department Phosphorus 7723140 4.92E-03 6.20E-04 2.61E+01 3.76E-04 s260 S-260 Kiln/Raw Mill Raw Milling and Kiln Department Selenium 7782492 3.74E-05 4.72E-06 2.02E-01 2.90E-06 s260 S-260 Kiln/Raw Mill Raw Milling and Kiln Department Silver 7440224 5.48E-06 6.90E-07 2.85E-02 4.09E-07 s260 S-260 Kiln/Raw Mill Raw Milling and Kiln Department Thallium 7440280 7.93E-05 1.00E-05 2.04E-01 2.94E-06 s260 S-260 Kiln/Raw Mill Raw Milling and Kiln Department Vanadium 7440622 1.56E-04 1.96E-05 8.31E-01 1.19E-05 s260 S-260 Kiln/Raw Mill Raw Milling and Kiln Department Zinc 7440666 9.64E-04 1.21E-04 5.06E+00 7.27E-05 s260 S-260 Kiln/Raw Mill Raw Milling and Kiln Department Hexavalent Chromium 18540299 4.70E-05 5.92E-06 2.44E-01 3.52E-06 s260 S-260 Kiln/Raw Mill Raw Milling and Kiln Department Benzene 71432 4.94E-02 6.23E-03 2.66E+02 3.83E-03 s260 S-260 Kiln/Raw Mill Raw Milling and Kiln Department Ammonia 7664417 2.40E+00 3.02E-01 2.22E+03 3.19E-02 s260 S-260 Kiln/Raw Mill Raw Milling and Kiln Department Formaldehyde 50000 2.35E-01 2.96E-02 5.97E+02 8.58E-03 s260 S-260 Kiln/Raw Mill Raw Milling and Kiln Department Naphthalene 91203 3.96E-04 4.98E-05 4.78E-01 6.87E-06 s260 S-260 Kiln/Raw Mill Raw Milling and Kiln Department 2-methylnaphthalene 91576 6.80E-06 8.56E-07 2.69E-02 3.87E-07 s260 S-260 Kiln/Raw Mill Raw Milling and Kiln Department Acenaphthylene 208968 1.09E-06 1.37E-07 5.86E-03 8.42E-08 s260 S-260 Kiln/Raw Mill Raw Milling and Kiln Department Acenaphthene 83329 1.12E-06 1.42E-07 5.88E-03 8.46E-08 s260 S-260 Kiln/Raw Mill Raw Milling and Kiln Department Fluorene 86737 2.47E-06 3.11E-07 9.07E-03 1.30E-07 s260 S-260 Kiln/Raw Mill Raw Milling and Kiln Department Phenanthrene 85018 1.24E-05 1.56E-06 3.07E-02 4.42E-07 s260 S-260 Kiln/Raw Mill Raw Milling and Kiln Department Anthracene 120127 1.09E-06 1.37E-07 5.86E-03 8.42E-08 s260 S-260 Kiln/Raw Mill Raw Milling and Kiln Department Fluoranthene 206440 1.73E-06 2.18E-07 6.22E-03 8.95E-08 s260 S-260 Kiln/Raw Mill Raw Milling and Kiln Department Pyrene 129000 1.22E-06 1.54E-07 5.93E-03 8.52E-08 s260 S-260 Kiln/Raw Mill Raw Milling and Kiln Department Benzo(a)anthracene 56553 1.09E-06 1.37E-07 5.86E-03 8.42E-08 s260 S-260 Kiln/Raw Mill Raw Milling and Kiln Department Chrysene 218019 1.09E-06 1.37E-07 5.86E-03 8.42E-08 s260 S-260 Kiln/Raw Mill Raw Milling and Kiln Department Benzo(b)fluoranthene 205992 1.09E-06 1.37E-07 5.86E-03 8.42E-08 s260 S-260 Kiln/Raw Mill Raw Milling and Kiln Department Benzo(k)fluoranthene 207089 1.09E-06 1.37E-07 5.86E-03 8.42E-08 s260 S-260 Kiln/Raw Mill Raw Milling and Kiln Department Benzo(e)pyrene 192972 1.09E-06 1.37E-07 5.86E-03 8.42E-08 s260 S-260 Kiln/Raw Mill Raw Milling and Kiln Department Benzo(a)pyrene 50328 1.09E-06 1.37E-07 5.86E-03 8.42E-08 s260 S-260 Kiln/Raw Mill Raw Milling and Kiln Department Perylene 198550 1.09E-06 1.37E-07 5.86E-03 8.42E-08 s260 S-260 Kiln/Raw Mill Raw Milling and Kiln Department Indeno(1,2,3-cd)pyrene 193395 1.09E-06 1.37E-07 5.86E-03 8.42E-08 s260 S-260 Kiln/Raw Mill Raw Milling and Kiln Department Dibenzo(a,h)anthracene 53703 1.09E-06 1.37E-07 5.86E-03 8.42E-08 s260 S-260 Kiln/Raw Mill Raw Milling and Kiln Department Benzo(g,h,i)perylene 191242 1.09E-06 1.37E-07 5.86E-03 8.42E-08 s260 S-260 Kiln/Raw Mill Raw Milling and Kiln Department Mercury 7439976 7.60E-03 9.58E-04 8.64E+00 1.24E-04 s260 S-260 Kiln/Raw Mill Raw Milling and Kiln Department PCDD 1085 5.30E-08 6.68E-09 5.26E-05 7.56E-10 s260 S-260 Kiln/Raw Mill Raw Milling and Kiln Department PCDF 1080 8.50E-08 1.07E-08 5.66E-05 8.14E-10 s260 S-260 Kiln/Raw Mill Raw Milling and Kiln Department Hydrochloric Acid 7647010 4.51E-01 5.68E-02 1.39E+03 1.99E-02 r100a R-100A Detroit Model V-71 489 Brake Horsepower Diesel Engine Internal Combustion Engine Department el engine exhaust, particulate m 9901 1.08E+00 1.36E-01 8.71E-01 1.25E-05 m151 M-151 6-CAT, 2132 Brake Horsepower Diesel Engine with Miratech CombikatInternal Combustion Engines Departmentel engine exhaust, particulate m 9901 2.59E-03 3.26E-04 1.02E-02 1.46E-07 m152 M-152 6-CAT, 2132 Brake Horsepower Diesel Engine with Miratech CombikatInternal Combustion Engines Departmentel engine exhaust, particulate m 9901 2.59E-03 3.26E-04 9.31E-03 1.34E-07 m153 M-153 6-CAT, 2132 Brake Horsepower Diesel Engine with Miratech CombikatInternal Combustion Engines Departmentel engine exhaust, particulate m 9901 2.59E-03 3.26E-04 6.77E-03 9.74E-08 m154 M-154 6-CAT, 2132 Brake Horsepower Diesel Engine with Miratech CombikatInternal Combustion Engines Departmentel engine exhaust, particulate m 9901 2.59E-03 3.26E-04 9.25E-03 1.33E-07 m155 M-155 6-CAT, 2132 Brake Horsepower Diesel Engine with Miratech CombikatInternal Combustion Engines Departmentel engine exhaust, particulate m 9901 2.59E-03 3.26E-04 9.00E-03 1.29E-07 e1 E1 Diesel Engine for Miller Big Blue 500 D Welder N/A el engine exhaust, particulate m 9901 1.08E-01 1.36E-02 2.15E+00 3.09E-05 e2 E2 Deutz Model F3L-912 Diesel Engine for Miller Big Blue 400 D Welder N/A el engine exhaust, particulate m 9901 9.13E-02 1.15E-02 1.83E+00 2.63E-05 e4 E4 Deutz Model F3L-912 Diesel Engine for Miller Big Blue 400 D Welder N/A el engine exhaust, particulate m 9901 9.13E-02 1.15E-02 1.83E+00 2.63E-05 e3 E3 Diesel Engine for Miller Bobcat 250 Welder N/A el engine exhaust, particulate m 9901 4.18E-02 5.27E-03 8.36E-01 1.20E-05 e5 E5 Kubota Model D902-EF01e Diesel Engine for Welder N/A el engine exhaust, particulate m 9901 4.49E-02 5.65E-03 9.87E-01 1.42E-05 e6 E6 del Performer P16 Gasoline Engine for Lincoln Electric Ranger 8 K1418 N/A 1,2,4-Trimethylbenzene 95636 4.37E-04 5.50E-05 8.73E-03 1.26E-07 e6 E6 del Performer P16 Gasoline Engine for Lincoln Electric Ranger 8 K1418 N/A 1,3-Butadiene 106990 2.88E-04 3.62E-05 5.75E-03 8.27E-08 e6 E6 del Performer P16 Gasoline Engine for Lincoln Electric Ranger 8 K1418 N/A Acetaldehyde 75070 2.60E-04 3.27E-05 5.20E-03 7.48E-08 e6 E6 del Performer P16 Gasoline Engine for Lincoln Electric Ranger 8 K1418 N/A Acrolein 107028 6.24E-05 7.86E-06 1.25E-03 1.79E-08 e6 E6 del Performer P16 Gasoline Engine for Lincoln Electric Ranger 8 K1418 N/A Benzene 71432 1.19E-03 1.50E-04 2.38E-02 3.43E-07 e6 E6 del Performer P16 Gasoline Engine for Lincoln Electric Ranger 8 K1418 N/A Chlorine 7782505 1.42E-04 1.80E-05 2.85E-03 4.10E-08 e6 E6 del Performer P16 Gasoline Engine for Lincoln Electric Ranger 8 K1418 N/A Copper 7440508 1.03E-06 1.30E-07 2.07E-05 2.97E-10 e6 E6 del Performer P16 Gasoline Engine for Lincoln Electric Ranger 8 K1418 N/A Ethylbenzene 100414 5.20E-04 6.55E-05 1.04E-02 1.50E-07 e6 E6 del Performer P16 Gasoline Engine for Lincoln Electric Ranger 8 K1418 N/A Formaldehyde 50000 1.08E-03 1.36E-04 2.16E-02 3.11E-07 e6 E6 del Performer P16 Gasoline Engine for Lincoln Electric Ranger 8 K1418 N/A Hexane (-n) 110543 4.54E-04 5.72E-05 9.08E-03 1.31E-07 e6 E6 del Performer P16 Gasoline Engine for Lincoln Electric Ranger 8 K1418 N/A Manganese 7439965 1.03E-06 1.30E-07 2.07E-05 2.97E-10 e6 E6 del Performer P16 Gasoline Engine for Lincoln Electric Ranger 8 K1418 N/A Methanol 67561 2.43E-04 3.06E-05 4.85E-03 6.98E-08 e6 E6 del Performer P16 Gasoline Engine for Lincoln Electric Ranger 8 K1418 N/A Methyl ethyl ketone (MEK) 78933 2.08E-05 2.62E-06 4.16E-04 5.98E-09 e6 E6 del Performer P16 Gasoline Engine for Lincoln Electric Ranger 8 K1418 N/A Methyl tert-butyl ether (MTBE) 1634044 6.44E-04 8.12E-05 1.29E-02 1.85E-07 e6 E6 del Performer P16 Gasoline Engine for Lincoln Electric Ranger 8 K1418 N/A Naphthalene 91203 4.50E-05 5.67E-06 9.01E-04 1.30E-08 e6 E6 del Performer P16 Gasoline Engine for Lincoln Electric Ranger 8 K1418 N/A Nickel 7440020 1.03E-06 1.30E-07 2.07E-05 2.97E-10 e6 E6 del Performer P16 Gasoline Engine for Lincoln Electric Ranger 8 K1418 N/A Styrene 100425 4.50E-05 5.67E-06 9.01E-04 1.30E-08 e6 E6 del Performer P16 Gasoline Engine for Lincoln Electric Ranger 8 K1418 N/A Toluene 108883 2.35E-03 2.96E-04 4.71E-02 6.77E-07 e6 E6 del Performer P16 Gasoline Engine for Lincoln Electric Ranger 8 K1418 N/A Xylenes 1330207 2.08E-03 2.62E-04 4.16E-02 5.98E-07 e7 E7 hler Model CH12.5S for American IMC Compressors 3G3HV Compress N/A 1,2,4-Trimethylbenzene 95636 3.41E-04 4.30E-05 6.82E-03 9.81E-08 e7 E7 hler Model CH12.5S for American IMC Compressors 3G3HV Compress N/A 1,3-Butadiene 106990 2.25E-04 2.83E-05 4.49E-03 6.46E-08 e7 E7 hler Model CH12.5S for American IMC Compressors 3G3HV Compress N/A Acetaldehyde 75070 2.03E-04 2.56E-05 4.06E-03 5.84E-08 e7 E7 hler Model CH12.5S for American IMC Compressors 3G3HV Compress N/A Acrolein 107028 4.87E-05 6.14E-06 9.75E-04 1.40E-08 e7 E7 hler Model CH12.5S for American IMC Compressors 3G3HV Compress N/A Benzene 71432 9.31E-04 1.17E-04 1.86E-02 2.68E-07 e7 E7 hler Model CH12.5S for American IMC Compressors 3G3HV Compress N/A Chlorine 7782505 1.11E-04 1.40E-05 2.23E-03 3.20E-08 e7 E7 hler Model CH12.5S for American IMC Compressors 3G3HV Compress N/A Copper 7440508 8.07E-07 1.02E-07 1.61E-05 2.32E-10 e7 E7 hler Model CH12.5S for American IMC Compressors 3G3HV Compress N/A Ethylbenzene 100414 4.06E-04 5.12E-05 8.12E-03 1.17E-07 e7 E7 hler Model CH12.5S for American IMC Compressors 3G3HV Compress N/A Formaldehyde 50000 8.45E-04 1.06E-04 1.69E-02 2.43E-07 e7 E7 hler Model CH12.5S for American IMC Compressors 3G3HV Compress N/A Hexane (-n) 110543 3.55E-04 4.47E-05 7.09E-03 1.02E-07 e7 E7 hler Model CH12.5S for American IMC Compressors 3G3HV Compress N/A Manganese 7439965 8.07E-07 1.02E-07 1.61E-05 2.32E-10 e7 E7 hler Model CH12.5S for American IMC Compressors 3G3HV Compress N/A Methanol 67561 1.89E-04 2.39E-05 3.79E-03 5.45E-08 e7 E7 hler Model CH12.5S for American IMC Compressors 3G3HV Compress N/A Methyl ethyl ketone (MEK) 78933 1.62E-05 2.05E-06 3.25E-04 4.67E-09 e7 E7 hler Model CH12.5S for American IMC Compressors 3G3HV Compress N/A Methyl tert-butyl ether (MTBE) 1634044 5.03E-04 6.34E-05 1.01E-02 1.45E-07 e7 E7 hler Model CH12.5S for American IMC Compressors 3G3HV Compress N/A Naphthalene 91203 3.52E-05 4.43E-06 7.04E-04 1.01E-08 e7 E7 hler Model CH12.5S for American IMC Compressors 3G3HV Compress N/A Nickel 7440020 8.07E-07 1.02E-07 1.61E-05 2.32E-10 e7 E7 hler Model CH12.5S for American IMC Compressors 3G3HV Compress N/A Styrene 100425 3.52E-05 4.43E-06 7.04E-04 1.01E-08 e7 E7 hler Model CH12.5S for American IMC Compressors 3G3HV Compress N/A Toluene 108883 1.84E-03 2.32E-04 3.68E-02 5.29E-07 e7 E7 hler Model CH12.5S for American IMC Compressors 3G3HV Compress N/A Xylenes 1330207 1.62E-03 2.05E-04 3.25E-02 4.67E-07 e8 E8 Gasoline Engine for Kohler Compressor N/A 1,2,4-Trimethylbenzene 95636 1.36E-03 1.72E-04 2.73E-02 3.92E-07 e8 E8 Gasoline Engine for Kohler Compressor N/A 1,3-Butadiene 106990 8.99E-04 1.13E-04 1.80E-02 2.59E-07 e8 E8 Gasoline Engine for Kohler Compressor N/A Acetaldehyde 75070 8.12E-04 1.02E-04 1.62E-02 2.34E-07 e8 E8 Gasoline Engine for Kohler Compressor N/A Acrolein 107028 1.95E-04 2.46E-05 3.90E-03 5.61E-08 e8 E8 Gasoline Engine for Kohler Compressor N/A Benzene 71432 3.72E-03 4.69E-04 7.45E-02 1.07E-06 e8 E8 Gasoline Engine for Kohler Compressor N/A Chlorine 7782505 4.45E-04 5.61E-05 8.91E-03 1.28E-07 e8 E8 Gasoline Engine for Kohler Compressor N/A Copper 7440508 3.23E-06 4.07E-07 6.46E-05 9.29E-10 e8 E8 Gasoline Engine for Kohler Compressor N/A Ethylbenzene 100414 1.62E-03 2.05E-04 3.25E-02 4.67E-07 e8 E8 Gasoline Engine for Kohler Compressor N/A Formaldehyde 50000 3.38E-03 4.26E-04 6.76E-02 9.72E-07 e8 E8 Gasoline Engine for Kohler Compressor N/A Hexane (-n) 110543 1.42E-03 1.79E-04 2.84E-02 4.08E-07 e8 E8 Gasoline Engine for Kohler Compressor N/A Manganese 7439965 3.23E-06 4.07E-07 6.46E-05 9.29E-10 e8 E8 Gasoline Engine for Kohler Compressor N/A Methanol 67561 7.58E-04 9.55E-05 1.52E-02 2.18E-07 e8 E8 Gasoline Engine for Kohler Compressor N/A Methyl ethyl ketone (MEK) 78933 6.50E-05 8.19E-06 1.30E-03 1.87E-08 211
Table 2a. Emission Rate by Substance and Source
CalPortland Company
Permit Number: 02‐VP‐07b
Stack ID Source ID Source Name Plant Area Substance Name CAS No. 1-hour Maximum (lb/hr)
1-Hour Maximum
(g/s)
Annual Average
(lb/yr)
Annual Average
(g/s)
e8 E8 Gasoline Engine for Kohler Compressor N/A Methyl tert-butyl ether (MTBE) 1634044 2.01E-03 2.54E-04 4.03E-02 5.79E-07 e8 E8 Gasoline Engine for Kohler Compressor N/A Naphthalene 91203 1.41E-04 1.77E-05 2.81E-03 4.05E-08 e8 E8 Gasoline Engine for Kohler Compressor N/A Nickel 7440020 3.23E-06 4.07E-07 6.46E-05 9.29E-10 e8 E8 Gasoline Engine for Kohler Compressor N/A Styrene 100425 1.41E-04 1.77E-05 2.81E-03 4.05E-08 e8 E8 Gasoline Engine for Kohler Compressor N/A Toluene 108883 7.35E-03 9.26E-04 1.47E-01 2.11E-06 e8 E8 Gasoline Engine for Kohler Compressor N/A Xylenes 1330207 6.50E-03 8.19E-04 1.30E-01 1.87E-06 e9 E9 NAPA Air Compressor Facility-Wide Operations 1,2,4-Trimethylbenzene 95636 1.36E-03 1.72E-04 2.73E-02 3.92E-07 e9 E9 NAPA Air Compressor Facility-Wide Operations 1,3-Butadiene 106990 8.99E-04 1.13E-04 1.80E-02 2.59E-07 e9 E9 NAPA Air Compressor Facility-Wide Operations Acetaldehyde 75070 8.12E-04 1.02E-04 1.62E-02 2.34E-07 e9 E9 NAPA Air Compressor Facility-Wide Operations Acrolein 107028 1.95E-04 2.46E-05 3.90E-03 5.61E-08 e9 E9 NAPA Air Compressor Facility-Wide Operations Benzene 71432 3.72E-03 4.69E-04 7.45E-02 1.07E-06 e9 E9 NAPA Air Compressor Facility-Wide Operations Chlorine 7782505 4.45E-04 5.61E-05 8.91E-03 1.28E-07 e9 E9 NAPA Air Compressor Facility-Wide Operations Copper 7440508 3.23E-06 4.07E-07 6.46E-05 9.29E-10 e9 E9 NAPA Air Compressor Facility-Wide Operations Ethylbenzene 100414 1.62E-03 2.05E-04 3.25E-02 4.67E-07 e9 E9 NAPA Air Compressor Facility-Wide Operations Formaldehyde 50000 3.38E-03 4.26E-04 6.76E-02 9.72E-07 e9 E9 NAPA Air Compressor Facility-Wide Operations Hexane (-n) 110543 1.42E-03 1.79E-04 2.84E-02 4.08E-07 e9 E9 NAPA Air Compressor Facility-Wide Operations Manganese 7439965 3.23E-06 4.07E-07 6.46E-05 9.29E-10 e9 E9 NAPA Air Compressor Facility-Wide Operations Methanol 67561 7.58E-04 9.55E-05 1.52E-02 2.18E-07 e9 E9 NAPA Air Compressor Facility-Wide Operations Methyl ethyl ketone (MEK) 78933 6.50E-05 8.19E-06 1.30E-03 1.87E-08 e9 E9 NAPA Air Compressor Facility-Wide Operations Methyl tert-butyl ether (MTBE) 1634044 2.01E-03 2.54E-04 4.03E-02 5.79E-07 e9 E9 NAPA Air Compressor Facility-Wide Operations Naphthalene 91203 1.41E-04 1.77E-05 2.81E-03 4.05E-08 e9 E9 NAPA Air Compressor Facility-Wide Operations Nickel 7440020 3.23E-06 4.07E-07 6.46E-05 9.29E-10 e9 E9 NAPA Air Compressor Facility-Wide Operations Styrene 100425 1.41E-04 1.77E-05 2.81E-03 4.05E-08 e9 E9 NAPA Air Compressor Facility-Wide Operations Toluene 108883 7.35E-03 9.26E-04 1.47E-01 2.11E-06 e9 E9 NAPA Air Compressor Facility-Wide Operations Xylenes 1330207 6.50E-03 8.19E-04 1.30E-01 1.87E-06 limeston LIMESTON Limestone Quarry Roads Quarries and Crushing Department Antimony 7440360 1.33E-06 1.68E-07 2.08E-03 2.99E-08 limeston LIMESTON Limestone Quarry Roads Quarries and Crushing Department Arsenic 7440382 1.08E-05 1.37E-06 1.69E-02 2.43E-07 limeston LIMESTON Limestone Quarry Roads Quarries and Crushing Department Barium 7440393 7.17E-04 9.03E-05 1.12E+00 1.61E-05 limeston LIMESTON Limestone Quarry Roads Quarries and Crushing Department Beryllium 7440417 3.33E-07 4.20E-08 5.20E-04 7.48E-09 limeston LIMESTON Limestone Quarry Roads Quarries and Crushing Department Cadmium 7440439 7.42E-06 9.35E-07 1.16E-02 1.66E-07 limeston LIMESTON Limestone Quarry Roads Quarries and Crushing Department Chromium 7440473 5.50E-05 6.93E-06 8.58E-02 1.23E-06 limeston LIMESTON Limestone Quarry Roads Quarries and Crushing Department Cobalt 7440484 5.50E-05 6.93E-06 8.58E-02 1.23E-06 limeston LIMESTON Limestone Quarry Roads Quarries and Crushing Department Copper 7440508 4.33E-04 5.46E-05 6.76E-01 9.72E-06 limeston LIMESTON Limestone Quarry Roads Quarries and Crushing Department Hexavalent Chromium 18540299 4.17E-07 5.25E-08 6.50E-04 9.35E-09 limeston LIMESTON Limestone Quarry Roads Quarries and Crushing Department Lead 7439921 3.83E-05 4.83E-06 5.98E-02 8.60E-07 limeston LIMESTON Limestone Quarry Roads Quarries and Crushing Department Mercury 7439976 8.33E-08 1.05E-08 1.30E-04 1.87E-09 limeston LIMESTON Limestone Quarry Roads Quarries and Crushing Department Nickel 7440020 2.50E-05 3.15E-06 3.90E-02 5.61E-07 limeston LIMESTON Limestone Quarry Roads Quarries and Crushing Department Selenium 7782492 1.75E-05 2.21E-06 2.73E-02 3.93E-07 limeston LIMESTON Limestone Quarry Roads Quarries and Crushing Department Silver 7440224 5.42E-07 6.83E-08 8.45E-04 1.22E-08 limeston LIMESTON Limestone Quarry Roads Quarries and Crushing Department Thallium 7440280 6.67E-06 8.40E-07 1.04E-02 1.50E-07 limeston LIMESTON Limestone Quarry Roads Quarries and Crushing Department Vanadium 7440622 3.08E-04 3.89E-05 4.81E-01 6.92E-06 limeston LIMESTON Limestone Quarry Roads Quarries and Crushing Department Zinc 7440666 7.67E-04 9.66E-05 1.20E+00 1.72E-05 shalequa SHALEQUA Shale Quarry Roads Quarries and Crushing Department Antimony 7440360 4.29E-07 5.40E-08 6.69E-04 9.62E-09 shalequa SHALEQUA Shale Quarry Roads Quarries and Crushing Department Arsenic 7440382 3.48E-06 4.39E-07 5.44E-03 7.82E-08 shalequa SHALEQUA Shale Quarry Roads Quarries and Crushing Department Barium 7440393 2.30E-04 2.90E-05 3.60E-01 5.17E-06 shalequa SHALEQUA Shale Quarry Roads Quarries and Crushing Department Beryllium 7440417 1.07E-07 1.35E-08 1.67E-04 2.41E-09 shalequa SHALEQUA Shale Quarry Roads Quarries and Crushing Department Cadmium 7440439 2.39E-06 3.01E-07 3.72E-03 5.35E-08 shalequa SHALEQUA Shale Quarry Roads Quarries and Crushing Department Chromium 7440473 1.77E-05 2.23E-06 2.76E-02 3.97E-07 shalequa SHALEQUA Shale Quarry Roads Quarries and Crushing Department Cobalt 7440484 1.77E-05 2.23E-06 2.76E-02 3.97E-07 shalequa SHALEQUA Shale Quarry Roads Quarries and Crushing Department Copper 7440508 1.39E-04 1.76E-05 2.17E-01 3.13E-06 shalequa SHALEQUA Shale Quarry Roads Quarries and Crushing Department Hexavalent Chromium 18540299 1.34E-07 1.69E-08 2.09E-04 3.01E-09 shalequa SHALEQUA Shale Quarry Roads Quarries and Crushing Department Lead 7439921 1.23E-05 1.55E-06 1.92E-02 2.77E-07 shalequa SHALEQUA Shale Quarry Roads Quarries and Crushing Department Mercury 7439976 2.68E-08 3.38E-09 4.18E-05 6.01E-10 shalequa SHALEQUA Shale Quarry Roads Quarries and Crushing Department Nickel 7440020 8.04E-06 1.01E-06 1.25E-02 1.80E-07 shalequa SHALEQUA Shale Quarry Roads Quarries and Crushing Department Selenium 7782492 5.63E-06 7.09E-07 8.78E-03 1.26E-07 shalequa SHALEQUA Shale Quarry Roads Quarries and Crushing Department Silver 7440224 1.74E-07 2.19E-08 2.72E-04 3.91E-09 shalequa SHALEQUA Shale Quarry Roads Quarries and Crushing Department Thallium 7440280 2.14E-06 2.70E-07 3.34E-03 4.81E-08 shalequa SHALEQUA Shale Quarry Roads Quarries and Crushing Department Vanadium 7440622 9.92E-05 1.25E-05 1.55E-01 2.23E-06 shalequa SHALEQUA Shale Quarry Roads Quarries and Crushing Department Zinc 7440666 2.47E-04 3.11E-05 3.85E-01 5.53E-06 internal INTERNAL Plant Roads (Internal) Facility-Wide Operations Antimony 7440360 5.35E-09 6.74E-10 2.34E-05 3.37E-10 internal INTERNAL Plant Roads (Internal) Facility-Wide Operations Arsenic 7440382 9.63E-08 1.21E-08 4.22E-04 6.07E-09 internal INTERNAL Plant Roads (Internal) Facility-Wide Operations Barium 7440393 8.56E-06 1.08E-06 3.75E-02 5.39E-07 internal INTERNAL Plant Roads (Internal) Facility-Wide Operations Beryllium 7440417 1.34E-09 1.69E-10 5.86E-06 8.43E-11 internal INTERNAL Plant Roads (Internal) Facility-Wide Operations Cadmium 7440439 6.42E-08 8.09E-09 2.81E-04 4.04E-09 internal INTERNAL Plant Roads (Internal) Facility-Wide Operations Chromium 7440473 1.55E-06 1.96E-07 6.80E-03 9.77E-08 internal INTERNAL Plant Roads (Internal) Facility-Wide Operations Cobalt 7440484 3.98E-07 5.01E-08 1.74E-03 2.51E-08 internal INTERNAL Plant Roads (Internal) Facility-Wide Operations Copper 7440508 2.03E-06 2.56E-07 8.90E-03 1.28E-07 internal INTERNAL Plant Roads (Internal) Facility-Wide Operations Hexavalent Chromium 18540299 5.89E-08 7.42E-09 2.58E-04 3.71E-09 internal INTERNAL Plant Roads (Internal) Facility-Wide Operations Lead 7439921 3.00E-07 3.78E-08 1.31E-03 1.89E-08 internal INTERNAL Plant Roads (Internal) Facility-Wide Operations Mercury 7439976 6.42E-09 8.09E-10 2.81E-05 4.04E-10 internal INTERNAL Plant Roads (Internal) Facility-Wide Operations Nickel 7440020 1.39E-06 1.75E-07 6.09E-03 8.76E-08 internal INTERNAL Plant Roads (Internal) Facility-Wide Operations Selenium 7782492 2.62E-07 3.30E-08 1.15E-03 1.65E-08 internal INTERNAL Plant Roads (Internal) Facility-Wide Operations Silver 7440224 2.14E-09 2.70E-10 9.37E-06 1.35E-10 internal INTERNAL Plant Roads (Internal) Facility-Wide Operations Thallium 7440280 2.68E-08 3.37E-09 1.17E-04 1.69E-09 internal INTERNAL Plant Roads (Internal) Facility-Wide Operations Vanadium 7440622 4.92E-06 6.20E-07 2.16E-02 3.10E-07 internal INTERNAL Plant Roads (Internal) Facility-Wide Operations Zinc 7440666 1.28E-05 1.62E-06 5.62E-02 8.09E-07 external EXTERNAL Plant Roads (External) Facility-Wide Operations Antimony 7440360 2.91E-08 3.67E-09 6.05E-05 8.70E-10 external EXTERNAL Plant Roads (External) Facility-Wide Operations Arsenic 7440382 5.24E-07 6.60E-08 1.09E-03 1.57E-08 external EXTERNAL Plant Roads (External) Facility-Wide Operations Barium 7440393 4.65E-05 5.86E-06 9.68E-02 1.39E-06 external EXTERNAL Plant Roads (External) Facility-Wide Operations Beryllium 7440417 7.27E-09 9.16E-10 1.51E-05 2.18E-10 external EXTERNAL Plant Roads (External) Facility-Wide Operations Cadmium 7440439 3.49E-07 4.40E-08 7.26E-04 1.04E-08 external EXTERNAL Plant Roads (External) Facility-Wide Operations Chromium 7440473 8.44E-06 1.06E-06 1.75E-02 2.52E-07 external EXTERNAL Plant Roads (External) Facility-Wide Operations Cobalt 7440484 2.18E-06 2.75E-07 4.54E-03 6.53E-08 external EXTERNAL Plant Roads (External) Facility-Wide Operations Copper 7440508 1.11E-05 1.39E-06 2.30E-02 3.31E-07 external EXTERNAL Plant Roads (External) Facility-Wide Operations Hexavalent Chromium 18540299 3.20E-07 4.03E-08 6.66E-04 9.57E-09 external EXTERNAL Plant Roads (External) Facility-Wide Operations Lead 7439921 1.63E-06 2.05E-07 3.39E-03 4.87E-08 external EXTERNAL Plant Roads (External) Facility-Wide Operations Mercury 7439976 3.49E-08 4.40E-09 7.26E-05 1.04E-09 external EXTERNAL Plant Roads (External) Facility-Wide Operations Nickel 7440020 7.56E-06 9.53E-07 1.57E-02 2.26E-07 external EXTERNAL Plant Roads (External) Facility-Wide Operations Selenium 7782492 1.43E-06 1.80E-07 2.96E-03 4.26E-08 external EXTERNAL Plant Roads (External) Facility-Wide Operations Silver 7440224 1.16E-08 1.47E-09 2.42E-05 3.48E-10 external EXTERNAL Plant Roads (External) Facility-Wide Operations Thallium 7440280 1.45E-07 1.83E-08 3.03E-04 4.35E-09 external EXTERNAL Plant Roads (External) Facility-Wide Operations Vanadium 7440622 2.68E-05 3.37E-06 5.57E-02 8.01E-07 external EXTERNAL Plant Roads (External) Facility-Wide Operations Zinc 7440666 6.98E-05 8.80E-06 1.45E-01 2.09E-06 a1 A1 Quarry Limestone Storage Pile Quarries and Crushing Department Barium 7440393 1.00E-02 1.26E-03 1.00E-02 1.44E-07 a1 A1 Quarry Limestone Storage Pile Quarries and Crushing Department Crystalline Silica 1175 1.00E-02 1.26E-03 1.00E-02 1.44E-07 a1 A1 Quarry Limestone Storage Pile Quarries and Crushing Department Manganese 7439965 6.00E-02 7.56E-03 9.00E-02 1.29E-06 a2 A2 Clinker North Storage Pile 1 Raw Milling & Kiln Department Manganese 7439965 1.00E-02 1.26E-03 3.00E-02 4.31E-07 a2 A2 Clinker North Storage Pile 1 Raw Milling & Kiln Department Zinc 7440666 0.00E+00 0.00E+00 1.00E-02 1.44E-07 a3 A3 Clinker Mid Storage Pile Raw Milling & Kiln Department Barium 7440393 0.00E+00 0.00E+00 1.00E-02 1.44E-07 a3 A3 Clinker Mid Storage Pile Raw Milling & Kiln Department Manganese 7439965 2.00E-02 2.52E-03 3.00E-02 4.31E-07 a3 A3 Clinker Mid Storage Pile Raw Milling & Kiln Department Zinc 7440666 0.00E+00 0.00E+00 1.00E-02 1.44E-07 a4 A4 Clinker South Storage Pile 1 Raw Milling & Kiln Department Barium 7440393 0.00E+00 0.00E+00 1.00E-02 1.44E-07 a4 A4 Clinker South Storage Pile 1 Raw Milling & Kiln Department Manganese 7439965 2.00E-02 2.52E-03 3.00E-02 4.31E-07 a4 A4 Clinker South Storage Pile 1 Raw Milling & Kiln Department Zinc 7440666 0.00E+00 0.00E+00 1.00E-02 1.44E-07 a5 A5 Mill reject Storage Pile 1 Raw Milling & Kiln Department Barium 7440393 1.00E-02 1.26E-03 1.00E-02 1.44E-07 a5 A5 Mill reject Storage Pile 1 Raw Milling & Kiln Department Manganese 7439965 3.00E-02 3.78E-03 6.00E-02 8.63E-07 a5 A5 Mill reject Storage Pile 1 Raw Milling & Kiln Department Zinc 7440666 1.00E-02 1.26E-03 1.00E-02 1.44E-07 a8 A8 Coal Storage Pile Raw Milling & Kiln Department Barium 7440393 1.00E-02 1.26E-03 2.00E-02 2.88E-07 a8 A8 Coal Storage Pile Raw Milling & Kiln Department Crystalline Silica 1175 7.00E-02 8.82E-03 1.50E-01 2.16E-06 a9 A9 Coke Storage Pile 1 Raw Milling & Kiln Department Nickel 7440020 0.00E+00 0.00E+00 1.00E-02 1.44E-07 a9 A9 Coke Storage Pile 1 Raw Milling & Kiln Department Vanadium 7440622 1.00E-02 1.26E-03 1.00E-02 1.44E-07 b51 B-51 Dyed Diesel Tank - 4200 gal Facility-Wide Operations Benzene 71432 0.00E+00 0.00E+00 1.00E-02 1.44E-07 b51 B-51 Dyed Diesel Tank - 4200 gal Facility-Wide Operations Ethylbenzene 100414 0.00E+00 0.00E+00 2.00E-02 2.88E-07 b51 B-51 Dyed Diesel Tank - 4200 gal Facility-Wide Operations Toluene 108883 1.00E-02 1.26E-03 1.20E-01 1.73E-06 b51 B-51 Dyed Diesel Tank - 4200 gal Facility-Wide Operations 1,2,4-Trimethylbenzene 95636 1.00E-02 1.26E-03 2.50E-01 3.60E-06 b51 B-51 Dyed Diesel Tank - 4200 gal Facility-Wide Operations Xylenes 1330207 1.00E-02 1.26E-03 3.00E-01 4.31E-06 b52 B-52 Gasoline Tank - 350 gal Facility-Wide Operations Benzene 71432 2.00E-02 2.52E-03 1.90E-01 2.73E-06 b52 B-52 Gasoline Tank - 350 gal Facility-Wide Operations Cumene 98828 0.00E+00 0.00E+00 1.00E-02 1.44E-07 b52 B-52 Gasoline Tank - 350 gal Facility-Wide Operations Cyclohexane 110827 1.00E-02 1.26E-03 6.00E-02 8.63E-07 212
Table 2a. Emission Rate by Substance and Source
CalPortland Company
Permit Number: 02‐VP‐07b
Stack ID Source ID Source Name Plant Area Substance Name CAS No. 1-hour Maximum (lb/hr)
1-Hour Maximum
(g/s)
Annual Average
(lb/yr)
Annual Average
(g/s)
b52 B-52 Gasoline Tank - 350 gal Facility-Wide Operations Ethylbenzene 100414 0.00E+00 0.00E+00 3.00E-02 4.31E-07 b52 B-52 Gasoline Tank - 350 gal Facility-Wide Operations Hexane (-n) 110543 3.00E-02 3.78E-03 3.90E-01 5.61E-06 b52 B-52 Gasoline Tank - 350 gal Facility-Wide Operations 2,2,4TriMePentn 540841 2.00E-02 2.52E-03 2.70E-01 3.88E-06 b52 B-52 Gasoline Tank - 350 gal Facility-Wide Operations Toluene 108883 5.00E-02 6.30E-03 5.00E-01 7.19E-06 b52 B-52 Gasoline Tank - 350 gal Facility-Wide Operations 1,2,4-Trimethylbenzene 95636 0.00E+00 0.00E+00 1.00E-02 1.44E-07 b52 B-52 Gasoline Tank - 350 gal Facility-Wide Operations Xylenes 1330207 1.00E-02 1.26E-03 1.40E-01 2.01E-06 b54 B-54 Motor Oil Tank - 250 gal Facility-Wide Operations Hexane (-n) 110543 6.00E-01 7.56E-02 6.00E-01 8.63E-06 k41 K-41 Clear Diesel Tank - 1,000 gal Facility-Wide Operations Toluene 108883 0.00E+00 0.00E+00 1.00E-02 1.44E-07 k41 K-41 Clear Diesel Tank - 1,000 gal Facility-Wide Operations 1,2,4-Trimethylbenzene 95636 0.00E+00 0.00E+00 1.00E-02 1.44E-07 k41 K-41 Clear Diesel Tank - 1,000 gal Facility-Wide Operations Xylenes 1330207 0.00E+00 0.00E+00 2.00E-02 2.88E-07 k42 K-42 Gasoline Tank - 1,000 gal Facility-Wide Operations Benzene 71432 2.31E-03 2.92E-04 3.84E-02 5.52E-07 k42 K-42 Gasoline Tank - 1,000 gal Facility-Wide Operations Cumene 98828 8.28E-05 1.04E-05 1.14E-03 1.64E-08 k42 K-42 Gasoline Tank - 1,000 gal Facility-Wide Operations Cyclohexane 110827 7.22E-04 9.10E-05 1.21E-02 1.74E-07 k42 K-42 Gasoline Tank - 1,000 gal Facility-Wide Operations Ethylbenzene 100414 4.62E-04 5.82E-05 6.67E-03 9.60E-08 k42 K-42 Gasoline Tank - 1,000 gal Facility-Wide Operations Hexane (-n) 110543 4.59E-03 5.78E-04 7.88E-02 1.13E-06 k42 K-42 Gasoline Tank - 1,000 gal Facility-Wide Operations 2,2,4TriMePentn 540841 3.49E-03 4.39E-04 5.46E-02 7.86E-07 k42 K-42 Gasoline Tank - 1,000 gal Facility-Wide Operations Toluene 108883 6.54E-03 8.24E-04 1.01E-01 1.46E-06 k42 K-42 Gasoline Tank - 1,000 gal Facility-Wide Operations 1,2,4-Trimethylbenzene 95636 1.92E-04 2.42E-05 2.52E-03 3.62E-08 k42 K-42 Gasoline Tank - 1,000 gal Facility-Wide Operations Xylenes 1330207 2.03E-03 2.56E-04 2.92E-02 4.20E-07 k46 K-46 Dyed Diesel Tank - 10,000 gal Facility-Wide Operations Benzene 71432 0.00E+00 0.00E+00 1.00E-02 1.44E-07 k46 K-46 Dyed Diesel Tank - 10,000 gal Facility-Wide Operations Ethylbenzene 100414 0.00E+00 0.00E+00 1.00E-02 1.44E-07 k46 K-46 Dyed Diesel Tank - 10,000 gal Facility-Wide Operations Toluene 108883 1.00E-02 1.26E-03 9.00E-02 1.29E-06 k46 K-46 Dyed Diesel Tank - 10,000 gal Facility-Wide Operations 1,2,4-Trimethylbenzene 95636 3.00E-02 3.78E-03 2.00E-01 2.88E-06 k46 K-46 Dyed Diesel Tank - 10,000 gal Facility-Wide Operations Xylenes 1330207 3.00E-02 3.78E-03 2.50E-01 3.60E-06 m143 M-143 Dyed Diesel Tank - 350 gal Facility-Wide Operations 1,2,4-Trimethylbenzene 95636 0.00E+00 0.00E+00 1.00E-02 1.44E-07 m143 M-143 Dyed Diesel Tank - 350 gal Facility-Wide Operations Xylenes 1330207 0.00E+00 0.00E+00 1.00E-02 1.44E-07 m142 M-142 Dyed Diesel Tank - 10,000 gal Facility-Wide Operations Toluene 108883 0.00E+00 0.00E+00 1.00E-02 1.44E-07 m142 M-142 Dyed Diesel Tank - 10,000 gal Facility-Wide Operations 1,2,4-Trimethylbenzene 95636 0.00E+00 0.00E+00 1.00E-02 1.44E-07 m142 M-142 Dyed Diesel Tank - 10,000 gal Facility-Wide Operations Xylenes 1330207 0.00E+00 0.00E+00 2.00E-02 2.88E-07 r279 R-279 Gasoline Tank - 225 gal Facility-Wide Operations Benzene 71432 1.00E-02 1.26E-03 1.60E-01 2.30E-06 r279 R-279 Gasoline Tank - 225 gal Facility-Wide Operations Cyclohexane 110827 0.00E+00 0.00E+00 5.00E-02 7.19E-07 r279 R-279 Gasoline Tank - 225 gal Facility-Wide Operations Ethylbenzene 100414 0.00E+00 0.00E+00 3.00E-02 4.31E-07 r279 R-279 Gasoline Tank - 225 gal Facility-Wide Operations Hexane (-n) 110543 2.00E-02 2.52E-03 3.30E-01 4.75E-06 r279 R-279 Gasoline Tank - 225 gal Facility-Wide Operations 2,2,4TriMePentn 540841 2.00E-02 2.52E-03 2.30E-01 3.31E-06 r279 R-279 Gasoline Tank - 225 gal Facility-Wide Operations Toluene 108883 3.00E-02 3.78E-03 4.20E-01 6.04E-06 r279 R-279 Gasoline Tank - 225 gal Facility-Wide Operations 1,2,4-Trimethylbenzene 95636 0.00E+00 0.00E+00 1.00E-02 1.44E-07 r279 R-279 Gasoline Tank - 225 gal Facility-Wide Operations Xylenes 1330207 1.00E-02 1.26E-03 1.20E-01 1.73E-06 278dies 278-Diesel-420 Diesel Tank - 420 gal Facility-Wide Operations 1,2,4-Trimethylbenzene 95636 0.00E+00 0.00E+00 1.00E-02 1.44E-07 278dies 278-Diesel-420 Diesel Tank - 420 gal Facility-Wide Operations Xylenes 1330207 0.00E+00 0.00E+00 1.00E-02 1.44E-07 279dies 279-Diesel-420 Diesel Tank - 420 gal Facility-Wide Operations 1,2,4-Trimethylbenzene 95636 0.00E+00 0.00E+00 1.00E-02 1.44E-07 279dies 279-Diesel-420 Diesel Tank - 420 gal Facility-Wide Operations Xylenes 1330207 0.00E+00 0.00E+00 1.00E-02 1.44E-07 fgtank1 FGTank1 Finish Grinding Tank 1 - 16,000 gal Facility-Wide Operations DEGlycol 111466 1.00E-02 1.26E-03 2.00E-02 2.88E-07 tank20 Tank 20 Diesel Tank - 550 gal Facility-Wide Operations 1,2,4-Trimethylbenzene 95636 0.00E+00 0.00E+00 1.00E-02 1.44E-07 tank20 Tank 20 Diesel Tank - 550 gal Facility-Wide Operations Xylenes 1330207 0.00E+00 0.00E+00 1.00E-02 1.44E-07 lsb LSB Limestone Quarry Blasting Quarries and Crushing Department Barium 7440393 0.00E+00 0.00E+00 2.00E-02 2.88E-07 lsb LSB Limestone Quarry Blasting Quarries and Crushing Department Copper 7440508 0.00E+00 0.00E+00 1.00E-02 1.44E-07 lsb LSB Limestone Quarry Blasting Quarries and Crushing Department Crystalline Silica 1175 0.00E+00 0.00E+00 4.00E-02 5.75E-07 lsb LSB Limestone Quarry Blasting Quarries and Crushing Department Manganese 7439965 1.00E-02 1.26E-03 2.20E-01 3.16E-06 lsb LSB Limestone Quarry Blasting Quarries and Crushing Department Vanadium 7440622 0.00E+00 0.00E+00 1.00E-02 1.44E-07 lsb LSB Limestone Quarry Blasting Quarries and Crushing Department Zinc 7440666 0.00E+00 0.00E+00 1.00E-02 1.44E-07 buldoz BULDOZ Shale Quarry Bulldozing Quarries and Crushing Department Arsenic 7440382 0.00E+00 0.00E+00 1.00E-02 1.44E-07 buldoz BULDOZ Shale Quarry Bulldozing Quarries and Crushing Department Barium 7440393 0.00E+00 0.00E+00 1.20E-01 1.73E-06 buldoz BULDOZ Shale Quarry Bulldozing Quarries and Crushing Department Cobalt 7440484 0.00E+00 0.00E+00 2.00E-02 2.88E-07 buldoz BULDOZ Shale Quarry Bulldozing Quarries and Crushing Department Copper 7440508 0.00E+00 0.00E+00 3.00E-02 4.31E-07 buldoz BULDOZ Shale Quarry Bulldozing Quarries and Crushing Department Crystalline Silica 1175 0.00E+00 0.00E+00 1.30E-01 1.87E-06 buldoz BULDOZ Shale Quarry Bulldozing Quarries and Crushing Department Manganese 7439965 0.00E+00 0.00E+00 7.20E-01 1.04E-05 buldoz BULDOZ Shale Quarry Bulldozing Quarries and Crushing Department Vanadium 7440622 0.00E+00 0.00E+00 9.00E-02 1.29E-06 buldoz BULDOZ Shale Quarry Bulldozing Quarries and Crushing Department Zinc 7440666 0.00E+00 0.00E+00 6.00E-02 8.63E-07 scrap SCRAPE Shale Quarry Scraping Quarries and Crushing Department Arsenic 7440382 0.00E+00 0.00E+00 2.00E-02 2.88E-07 scrap SCRAPE Shale Quarry Scraping Quarries and Crushing Department Barium 7440393 0.00E+00 0.00E+00 3.60E-01 5.18E-06 scrap SCRAPE Shale Quarry Scraping Quarries and Crushing Department Chromium 7440473 0.00E+00 0.00E+00 1.00E-02 1.44E-07 scrap SCRAPE Shale Quarry Scraping Quarries and Crushing Department Cobalt 7440484 0.00E+00 0.00E+00 6.00E-02 8.63E-07 scrap SCRAPE Shale Quarry Scraping Quarries and Crushing Department Copper 7440508 0.00E+00 0.00E+00 8.00E-02 1.15E-06 scrap SCRAPE Shale Quarry Scraping Quarries and Crushing Department Crystalline Silica 1175 0.00E+00 0.00E+00 4.00E-01 5.75E-06 scrap SCRAPE Shale Quarry Scraping Quarries and Crushing Department Lead 7439921 0.00E+00 0.00E+00 1.00E-02 1.44E-07 scrap SCRAPE Shale Quarry Scraping Quarries and Crushing Department Manganese 7439965 0.00E+00 0.00E+00 2.20E+00 3.16E-05 scrap SCRAPE Shale Quarry Scraping Quarries and Crushing Department Nickel 7440020 0.00E+00 0.00E+00 1.00E-02 1.44E-07 scrap SCRAPE Shale Quarry Scraping Quarries and Crushing Department Vanadium 7440622 0.00E+00 0.00E+00 2.80E-01 4.03E-06 scrap SCRAPE Shale Quarry Scraping Quarries and Crushing Department Zinc 7440666 0.00E+00 0.00E+00 1.80E-01 2.59E-06 lsd LSD Limestone Quarry Drill Quarries and Crushing Department Arsenic 7440382 0.00E+00 0.00E+00 1.00E-02 1.44E-07 lsd LSD Limestone Quarry Drill Quarries and Crushing Department Barium 7440393 0.00E+00 0.00E+00 1.10E-01 1.58E-06 lsd LSD Limestone Quarry Drill Quarries and Crushing Department Chromium 7440473 0.00E+00 0.00E+00 1.00E-02 1.44E-07 lsd LSD Limestone Quarry Drill Quarries and Crushing Department Cobalt 7440484 0.00E+00 0.00E+00 1.00E-02 1.44E-07 lsd LSD Limestone Quarry Drill Quarries and Crushing Department Copper 7440508 0.00E+00 0.00E+00 5.00E-02 7.19E-07 lsd LSD Limestone Quarry Drill Quarries and Crushing Department Crystalline Silica 1175 0.00E+00 0.00E+00 2.00E-01 2.88E-06 lsd LSD Limestone Quarry Drill Quarries and Crushing Department Lead 7439921 0.00E+00 0.00E+00 1.00E-02 1.44E-07 lsd LSD Limestone Quarry Drill Quarries and Crushing Department Manganese 7439965 0.00E+00 0.00E+00 1.19E+00 1.71E-05 lsd LSD Limestone Quarry Drill Quarries and Crushing Department Nickel 7440020 0.00E+00 0.00E+00 2.00E-02 2.88E-07 lsd LSD Limestone Quarry Drill Quarries and Crushing Department Vanadium 7440622 0.00E+00 0.00E+00 6.00E-02 8.63E-07 lsd LSD Limestone Quarry Drill Quarries and Crushing Department Zinc 7440666 0.00E+00 0.00E+00 7.00E-02 1.01E-06 truckpw TRUCKPW Solvent Parts Washer - 55 gal Facility-Wide Operations Methanol 67561 0.00E+00 0.00E+00 6.63E+00 9.54E-05 truckpw TRUCKPW Solvent Parts Washer - 55 gal Facility-Wide Operations Hydrochloric Acid 7647010 0.00E+00 0.00E+00 1.37E+01 1.97E-04 m11 M1/1 Limestone Loader to Dump Truck Quarries and Crushing Department Antimony 7440360 0.00E+00 0.00E+00 1.00E-02 1.44E-07 m11 M1/1 Limestone Loader to Dump Truck Quarries and Crushing Department Arsenic 7440382 0.00E+00 0.00E+00 8.00E-02 1.15E-06 m11 M1/1 Limestone Loader to Dump Truck Quarries and Crushing Department Barium 7440393 0.00E+00 0.00E+00 9.60E-01 1.38E-05 m11 M1/1 Limestone Loader to Dump Truck Quarries and Crushing Department Cadmium 7440439 0.00E+00 0.00E+00 1.00E-02 1.44E-07 m11 M1/1 Limestone Loader to Dump Truck Quarries and Crushing Department Chromium 7440473 0.00E+00 0.00E+00 1.10E-01 1.58E-06 m11 M1/1 Limestone Loader to Dump Truck Quarries and Crushing Department Cobalt 7440484 0.00E+00 0.00E+00 5.00E-02 7.19E-07 m11 M1/1 Limestone Loader to Dump Truck Quarries and Crushing Department Copper 7440508 0.00E+00 0.00E+00 4.00E-01 5.75E-06 m11 M1/1 Limestone Loader to Dump Truck Quarries and Crushing Department Crystalline Silica 1175 0.00E+00 0.00E+00 1.68E+00 2.42E-05 m11 M1/1 Limestone Loader to Dump Truck Quarries and Crushing Department Hexavalent Chromium 18540299 0.00E+00 0.00E+00 2.00E-02 2.88E-07 m11 M1/1 Limestone Loader to Dump Truck Quarries and Crushing Department Lead 7439921 0.00E+00 0.00E+00 6.00E-02 8.63E-07 m11 M1/1 Limestone Loader to Dump Truck Quarries and Crushing Department Manganese 7439965 1.00E-02 1.26E-03 1.54E+01 2.21E-04 m11 M1/1 Limestone Loader to Dump Truck Quarries and Crushing Department Nickel 7440020 0.00E+00 0.00E+00 1.50E-01 2.16E-06 m11 M1/1 Limestone Loader to Dump Truck Quarries and Crushing Department Selenium 7782492 0.00E+00 0.00E+00 2.00E-02 2.88E-07 m11 M1/1 Limestone Loader to Dump Truck Quarries and Crushing Department Vanadium 7440622 0.00E+00 0.00E+00 4.70E-01 6.76E-06 m11 M1/1 Limestone Loader to Dump Truck Quarries and Crushing Department Zinc 7440666 0.00E+00 0.00E+00 5.70E-01 8.20E-06 m16 M1/6 Portable limestone crusher Quarries and Crushing Department Arsenic 7440382 0.00E+00 0.00E+00 3.00E-02 4.31E-07 m16 M1/6 Portable limestone crusher Quarries and Crushing Department Barium 7440393 0.00E+00 0.00E+00 3.30E-01 4.75E-06 m16 M1/6 Portable limestone crusher Quarries and Crushing Department Chromium 7440473 0.00E+00 0.00E+00 4.00E-02 5.75E-07 m16 M1/6 Portable limestone crusher Quarries and Crushing Department Cobalt 7440484 0.00E+00 0.00E+00 2.00E-02 2.88E-07 m16 M1/6 Portable limestone crusher Quarries and Crushing Department Copper 7440508 0.00E+00 0.00E+00 1.40E-01 2.01E-06 m16 M1/6 Portable limestone crusher Quarries and Crushing Department Crystalline Silica 1175 0.00E+00 0.00E+00 5.80E-01 8.34E-06 m16 M1/6 Portable limestone crusher Quarries and Crushing Department Hexavalent Chromium 18540299 0.00E+00 0.00E+00 1.00E-02 1.44E-07 m16 M1/6 Portable limestone crusher Quarries and Crushing Department Lead 7439921 0.00E+00 0.00E+00 2.00E-02 2.88E-07 m16 M1/6 Portable limestone crusher Quarries and Crushing Department Manganese 7439965 0.00E+00 0.00E+00 5.27E+00 7.58E-05 m16 M1/6 Portable limestone crusher Quarries and Crushing Department Nickel 7440020 0.00E+00 0.00E+00 5.00E-02 7.19E-07 m16 M1/6 Portable limestone crusher Quarries and Crushing Department Selenium 7782492 0.00E+00 0.00E+00 1.00E-02 1.44E-07 m16 M1/6 Portable limestone crusher Quarries and Crushing Department Vanadium 7440622 0.00E+00 0.00E+00 1.60E-01 2.30E-06 m16 M1/6 Portable limestone crusher Quarries and Crushing Department Zinc 7440666 0.00E+00 0.00E+00 2.00E-01 2.88E-06 m17 M1/7 Shale Loader to Shale Dump Truck Quarries and Crushing Department Manganese 7439965 0.00E+00 0.00E+00 3.00E-02 4.31E-07 m18 M1/8 Shale Dump Truck to Shale Barn Quarries and Crushing Department Manganese 7439965 0.00E+00 0.00E+00 3.00E-02 4.31E-07 m19 M1/9 Shale Barn to Hopper Quarries and Crushing Department Manganese 7439965 0.00E+00 0.00E+00 2.00E-02 2.88E-07 m110 M1/10 Hopper to C-3 Apron Feeder Quarries and Crushing Department Manganese 7439965 0.00E+00 0.00E+00 3.00E-02 4.31E-07 m111 M1/11 C-3 Apron Feeder to C-4 Vibrating Grizzly Quarries and Crushing Department Manganese 7439965 0.00E+00 0.00E+00 3.00E-02 4.31E-07 m112 M1/12 C-4 Vibrating Grizzly to C-5 Shale Crusher or Conveyor Quarries and Crushing Department Manganese 7439965 0.00E+00 0.00E+00 3.00E-02 4.31E-07 m21 M2/1 Coal Railcar to Vibrator G-193/194 Raw Milling and Kiln Department Crystalline Silica 1175 0.00E+00 0.00E+00 1.00E-02 1.44E-07 m22 M2/2 Vibrator G-193/194 to Conveyor Belt G-196 Raw Milling and Kiln Department Crystalline Silica 1175 0.00E+00 0.00E+00 1.00E-02 1.44E-07 m23 M2/3 Conveyor Belt G-196 to Bucket Elevator G-198 Raw Milling and Kiln Department Crystalline Silica 1175 0.00E+00 0.00E+00 1.00E-021.44E-07 213
Table 2a. Emission Rate by Substance and Source
CalPortland Company
Permit Number: 02‐VP‐07b
Stack ID Source ID Source Name Plant Area Substance Name CAS No. 1-hour Maximum (lb/hr)
1-Hour Maximum
(g/s)
Annual Average
(lb/yr)
Annual Average
(g/s)
m24 M2/4 Bucket Elevator G-198 to Belt Conveyor G-200 Raw Milling and Kiln Department Crystalline Silica 1175 0.00E+00 0.00E+00 1.00E-021.44E-07 m25 M2/5 Weigh Feeder G-204 to Belt Conveyor G-453 Raw Milling and Kiln Department Crystalline Silica 1175 0.00E+00 0.00E+00 1.00E-02 1.44E-07 m26 M2/6 Belt Conveyor G-453 to Feed Belt G-455 Raw Milling and Kiln Department Crystalline Silica 1175 0.00E+00 0.00E+00 1.00E-02 1.44E-07 m211 M2/11 Emergecy Clinker Discharge to Dustless Chute Raw Milling and Kiln Department Arsenic 7440382 0.00E+00 0.00E+00 1.00E-02 1.44E-07 m211 M2/11 Emergecy Clinker Discharge to Dustless Chute Raw Milling and Kiln Department Barium 7440393 3.39E-05 4.27E-06 1.98E-01 2.85E-06 m211 M2/11 Emergecy Clinker Discharge to Dustless Chute Raw Milling and Kiln Department Beryllium 7440417 3.00E-08 3.78E-09 1.68E-04 2.41E-09 m211 M2/11 Emergecy Clinker Discharge to Dustless Chute Raw Milling and Kiln Department Cadmium 7440439 2.09E-07 2.63E-08 1.22E-03 1.75E-08 m211 M2/11 Emergecy Clinker Discharge to Dustless Chute Raw Milling and Kiln Department Chromium 7440473 4.17E-06 5.25E-07 2.44E-02 3.51E-07 m211 M2/11 Emergecy Clinker Discharge to Dustless Chute Raw Milling and Kiln Department Cobalt 7440484 1.29E-06 1.63E-07 7.54E-03 1.08E-07 m211 M2/11 Emergecy Clinker Discharge to Dustless Chute Raw Milling and Kiln Department Copper 7440508 6.78E-06 8.54E-07 3.96E-02 5.70E-07 m211 M2/11 Emergecy Clinker Discharge to Dustless Chute Raw Milling and Kiln Department Crystalline Silica 1175 1.30E-05 1.64E-06 7.62E-02 1.10E-06 m211 M2/11 Emergecy Clinker Discharge to Dustless Chute Raw Milling and Kiln Department Hexavalent Chromium 18540299 9.65E-07 1.22E-07 5.64E-03 8.11E-08 m211 M2/11 Emergecy Clinker Discharge to Dustless Chute Raw Milling and Kiln Department Lead 7439921 8.48E-07 1.07E-07 4.95E-03 7.12E-08 m211 M2/11 Emergecy Clinker Discharge to Dustless Chute Raw Milling and Kiln Department Manganese 7439965 1.83E-04 2.30E-05 3.65E-01 5.25E-06 m211 M2/11 Emergecy Clinker Discharge to Dustless Chute Raw Milling and Kiln Department Mercury 7439976 1.37E-09 1.73E-10 8.00E-06 1.15E-10 m211 M2/11 Emergecy Clinker Discharge to Dustless Chute Raw Milling and Kiln Department Nickel 7440020 5.74E-06 7.23E-07 3.35E-02 4.82E-07 m211 M2/11 Emergecy Clinker Discharge to Dustless Chute Raw Milling and Kiln Department Selenium 7782492 2.09E-07 2.63E-08 1.22E-03 1.75E-08 m211 M2/11 Emergecy Clinker Discharge to Dustless Chute Raw Milling and Kiln Department Silver 7440224 2.87E-08 3.62E-09 1.68E-04 2.41E-09 m211 M2/11 Emergecy Clinker Discharge to Dustless Chute Raw Milling and Kiln Department Thallium 7440280 3.19E-09 4.02E-10 1.87E-05 2.69E-10 m211 M2/11 Emergecy Clinker Discharge to Dustless Chute Raw Milling and Kiln Department Vanadium 7440622 1.56E-05 1.97E-06 9.14E-02 1.31E-06 m211 M2/11 Emergecy Clinker Discharge to Dustless Chute Raw Milling and Kiln Department Zinc 7440666 4.30E-05 5.42E-06 2.51E-01 3.61E-06 m3 M3 Gypsum Railcar to Drag Chain Conveyor D-31 Raw Milling and Kiln Department Antimony 7440360 1.22E-10 1.54E-11 6.96E-07 1.00E-11 m3 M3 Gypsum Railcar to Drag Chain Conveyor D-31 Raw Milling and Kiln Department Arsenic 7440382 3.35E-09 4.22E-10 1.92E-05 2.76E-10 m3 M3 Gypsum Railcar to Drag Chain Conveyor D-31 Raw Milling and Kiln Department Barium 7440393 2.95E-08 3.72E-09 1.69E-04 2.43E-09 m3 M3 Gypsum Railcar to Drag Chain Conveyor D-31 Raw Milling and Kiln Department Beryllium 7440417 1.22E-10 1.54E-11 1.74E-06 2.50E-11 m3 M3 Gypsum Railcar to Drag Chain Conveyor D-31 Raw Milling and Kiln Department Cadmium 7440439 7.31E-11 9.21E-12 4.18E-07 6.01E-12 m3 M3 Gypsum Railcar to Drag Chain Conveyor D-31 Raw Milling and Kiln Department Chromium 7440473 1.83E-09 2.31E-10 1.04E-05 1.50E-10 m3 M3 Gypsum Railcar to Drag Chain Conveyor D-31 Raw Milling and Kiln Department Cobalt 7440484 2.28E-09 2.87E-10 1.31E-05 1.88E-10 m3 M3 Gypsum Railcar to Drag Chain Conveyor D-31 Raw Milling and Kiln Department Copper 7440508 1.22E-08 1.54E-09 6.96E-05 1.00E-09 m3 M3 Gypsum Railcar to Drag Chain Conveyor D-31 Raw Milling and Kiln Department Crystalline Silica 1175 3.05E-07 3.84E-08 1.74E-03 2.50E-08 m3 M3 Gypsum Railcar to Drag Chain Conveyor D-31 Raw Milling and Kiln Department Hexavalent Chromium 18540299 2.07E-09 2.61E-10 1.18E-051.70E-10 m3 M3 Gypsum Railcar to Drag Chain Conveyor D-31 Raw Milling and Kiln Department Lead 7439921 1.16E-09 1.46E-10 6.62E-06 9.52E-11 m3 M3 Gypsum Railcar to Drag Chain Conveyor D-31 Raw Milling and Kiln Department Manganese 7439965 1.07E-07 1.35E-08 2.13E-04 3.07E-09 m3 M3 Gypsum Railcar to Drag Chain Conveyor D-31 Raw Milling and Kiln Department Mercury 7439976 3.20E-11 4.03E-12 1.83E-07 2.63E-12 m3 M3 Gypsum Railcar to Drag Chain Conveyor D-31 Raw Milling and Kiln Department Nickel 7440020 2.71E-08 3.41E-09 1.55E-04 2.23E-09 m3 M3 Gypsum Railcar to Drag Chain Conveyor D-31 Raw Milling and Kiln Department Selenium 7782492 1.52E-09 1.92E-10 8.71E-06 1.25E-10 m3 M3 Gypsum Railcar to Drag Chain Conveyor D-31 Raw Milling and Kiln Department Silver 7440224 7.77E-11 9.79E-12 4.44E-07 6.39E-12 m3 M3 Gypsum Railcar to Drag Chain Conveyor D-31 Raw Milling and Kiln Department Thallium 7440280 7.46E-11 9.40E-12 4.27E-07 6.14E-12 m3 M3 Gypsum Railcar to Drag Chain Conveyor D-31 Raw Milling and Kiln Department Vanadium 7440622 1.46E-08 1.84E-09 8.36E-05 1.20E-09 m3 M3 Gypsum Railcar to Drag Chain Conveyor D-31 Raw Milling and Kiln Department Zinc 7440666 2.59E-08 3.26E-09 1.48E-04 2.13E-09

1. Emission rates are consistent with the 2020 HRA with the exception of the sources identified in Section 3.3 of this RRP. 214
Table 2b. Total Emission Rate by Substance
CalPortland Company
Permit Number: 02‐VP‐07b
Substance Name CAS No. 1-Hour Maximum
(lb/hr)
1-Hour Maximum
(g/s)
Annual Average
(lb/yr)
Annual Average
(g/s)
Antimony 7440360 2.50E-04 3.15E-05 1.23E+00 1.77E-05
Arsenic 7440382 2.15E-04 2.71E-05 1.06E+00 1.52E-05
Barium 7440393 3.51E-02 4.42E-03 2.19E+01 3.16E-04
Beryllium 7440417 1.27E-05 1.60E-06 5.95E-02 8.55E-07
Cadmium 7440439 4.78E-05 6.02E-06 2.02E-01 2.91E-06
Chromium 7440473 7.97E-04 1.00E-04 3.63E+00 5.22E-05
Cobalt 7440484 3.00E-04 3.78E-05 1.29E+00 1.86E-05
Copper 7440508 1.15E-03 1.45E-04 3.52E+00 5.06E-05
Crystalline Silica 1175 1.66E-01 2.10E-02 4.71E+02 6.78E-03 Hexavalent Chromium 18540299 2.17E-04 2.74E-05 1.02E+00 1.47E-05 Lead 7439921 2.38E-04 2.99E-05 9.84E-01 1.41E-05
Manganese 7439965 1.84E-01 2.31E-02 1.27E+02 1.83E-03
Mercury 7439976 7.60E-03 9.58E-04 8.67E+00 1.25E-04
Nickel 7440020 3.23E-03 4.06E-04 1.97E+01 2.83E-04
Selenium 7782492 8.81E-05 1.11E-05 3.82E-01 5.50E-06
Silver 7440224 9.25E-06 1.17E-06 4.06E-02 5.84E-07
Thallium 7440280 1.02E-04 1.29E-05 2.92E-01 4.20E-06
Vanadium 7440622 1.75E-02 2.21E-03 4.43E+01 6.38E-04
Zinc 7440666 1.69E-02 2.12E-03 2.92E+01 4.21E-04
Acenaphthene 83329 2.57E-06 3.24E-07 6.48E-03 9.32E-08
Acenaphthylene 208968 6.24E-06 7.86E-07 8.01E-03 1.15E-07 Acetaldehyde 75070 2.87E-03 3.61E-04 3.68E-01 5.29E-06
Acrolein 107028 5.95E-04 7.50E-05 4.94E-02 7.10E-07
Anthracene 120127 2.99E-06 3.77E-07 6.65E-03 9.57E-08
Benzene 71432 9.23E-02 1.16E-02 2.67E+02 3.85E-03
Benzo(a)anthracene 56553 2.80E-06 3.52E-07 6.57E-03 9.45E-08 Benzo(a)pyrene 50328 1.28E-06 1.61E-07 5.94E-03 8.54E-08 Benzo(b)fluoranthene 205992 1.19E-06 1.50E-07 5.90E-03 8.48E-08 Benzo(g,h,i)perylene 191242 1.59E-06 2.00E-07 6.06E-03 8.72E-08 Benzo(k)fluoranthene 207089 1.25E-06 1.57E-07 5.92E-03 8.52E-08 1,3-Butadiene 106990 2.35E-03 2.96E-04 6.28E-02 9.04E-07 Chrysene 218019 1.45E-06 1.82E-07 6.01E-03 8.64E-08
Dibenzo(a,h)anthracene 53703 1.68E-06 2.12E-07 6.10E-03 8.78E-08 Fluoranthene 206440 9.48E-06 1.19E-06 9.46E-03 1.36E-07 Fluorene 86737 3.22E-05 4.06E-06 2.15E-02 3.09E-07
Formaldehyde 50000 2.45E-01 3.08E-02 5.97E+02 8.59E-03
Indeno(1,2,3-cd)pyrene 193395 1.47E-06 1.85E-07 6.02E-03 8.65E-08 Naphthalene 91203 8.43E-04 1.06E-04 5.21E-01 7.49E-06
Phenanthrene 85018 4.23E-05 5.33E-06 4.32E-02 6.22E-07
Pyrene 129000 6.09E-06 7.67E-07 7.96E-03 1.14E-07
Toluene 108883 1.26E-01 1.59E-02 1.80E+00 2.59E-05
Xylenes 1330207 7.90E-02 9.96E-03 1.37E+00 1.98E-05
Aluminum 7429905 5.34E-02 6.73E-03 2.83E+02 4.07E-03
Phosphorus 7723140 4.92E-03 6.20E-04 2.61E+01 3.76E-04
Ammonia 7664417 2.40E+00 3.02E-01 2.22E+03 3.19E-02
2-methylnaphthalene 91576 6.80E-06 8.56E-07 2.69E-02 3.87E-07 Benzo(e)pyrene 192972 1.09E-06 1.37E-07 5.86E-03 8.42E-08 Perylene 198550 1.09E-06 1.37E-07 5.86E-03 8.42E-08
PCDD 1085 5.30E-08 6.68E-09 5.26E-05 7.56E-10
PCDF 1080 8.50E-08 1.07E-08 5.66E-05 8.14E-10
Hydrochloric Acid 7647010 4.51E-01 5.68E-02 1.40E+03 2.01E-02 Diesel engine exhaust, particulate matter 9901 1.47E+00 1.85E-01 8.54E+00 1.23E-04 1,2,4-Trimethylbenzene 95636 4.37E-02 5.51E-03 6.03E-01 8.67E-06 Chlorine 7782505 1.14E-03 1.44E-04 2.29E-02 3.29E-07
Ethylbenzene 100414 4.64E-03 5.84E-04 1.80E-01 2.59E-06 Hexane (-n) 110543 6.58E-01 8.29E-02 1.47E+00 2.12E-05
Methanol 67561 1.95E-03 2.45E-04 6.67E+00 9.59E-05
215
Table 2b. Total Emission Rate by Substance
CalPortland Company
Permit Number: 02‐VP‐07b
Methyl ethyl ketone (MEK) 78933 1.67E-04 2.10E-05 3.34E-03 4.80E-08 Methyl tert-butyl ether (MTBE) 1634044 5.18E-03 6.52E-04 1.04E-01 1.49E-06 Styrene 100425 3.62E-04 4.56E-05 7.23E-03 1.04E-07
Cumene 98828 8.28E-05 1.04E-05 1.11E-02 1.60E-07
Cyclohexane 110827 1.07E-02 1.35E-03 1.22E-01 1.76E-06
2,2,4TriMePentn 540841 4.35E-02 5.48E-03 5.55E-01 7.98E-06 DEGlycol 111466 1.00E-02 1.26E-03 2.00E-02 2.88E-07

1. Emission rates are consistent with the 2020 HRA with the exception of the sources identified in Section 3.3 of this RRP. 216
Table 3. Toxicity Data by Substance - Exposure Pathways CalPortland Company
Permit Number: 02‐VP‐07b
Inhalation
(mg/kg-day)-1
Oral
(mg/kg-day)-1
Inhalation
(µg/m3
)
Oral
(mg/kg BW-day) Inhalation Soil Ingestion Dermal Mother's Milk Antimony 7440360 N W,R W,R W,R R
Arsenic 7440382 1.20E+01 1.50E+00 1.50E-02 3.50E-06 1.50E-02 2.00E-01 Y W,R W,R W,R R Barium 7440393 N W,R W,R W,R R
Beryllium 7440417 8.40E+00 7.00E-03 2.00E-03 Y W,R W,R W,R R Cadmium 7440439 1.50E+01 2.00E-02 5.00E-04 Y W,R W,R W,R R Chromium 7440473 N W,R W,R W,R R
Cobalt 7440484 2.70E+01 N W,R W,R W,R R
Copper 7440508 1.00E+02 N W,R W,R W,R R
Crystalline Silica 1175 3.00E+00 N W,R W,R W,R R
Hexavalent Chromium 18540299 5.10E+02 5.00E-01 2.00E-01 2.00E-02 Y W,R W,R W,R R Lead 7439921 4.20E-02 8.50E-03 Y W,R W,R W,R R
Manganese 7439965 9.00E-02 1.70E-01 N W,R W,R W,R R
Mercury 7439976 3.00E-02 1.60E-04 6.00E-02 6.00E-01 Y W,R W,R W,R R Nickel 7440020 9.10E-01 1.40E-02 1.10E-02 6.00E-02 2.00E-01 Y W,R W,R W,R R Selenium 7782492 2.00E+01 5.00E-03 N W,R W,R W,R R
Silver 7440224 N W,R W,R W,R R
Thallium 7440280 N W,R W,R W,R R
Vanadium 7440622 3.00E+01 N W,R W,R W,R R
Zinc 7440666 N W,R W,R W,R R
Acenaphthene 83329 N W,R W,R W,R R
Acenaphthylene 208968 N W,R W,R W,R R
Acetaldehyde 75070 1.00E-02 1.40E+02 3.00E+02 4.70E+02 N W,R W,R W,R R Acrolein 107028 3.50E-01 7.00E-01 2.50E+00 N W,R W,R W,R R Anthracene 120127 N W,R W,R W,R R
Benzene 71432 1.00E-01 3.00E+00 3.00E+00 2.70E+01 N W,R W,R W,R R Benzo(a)anthracene 56553 3.90E-01 1.20E+00 Y W,R W,R W,R R Benzo(a)pyrene 50328 3.90E+00 1.20E+01 Y W,R W,R W,R R
Benzo(b)fluoranthene 205992 3.90E-01 1.20E+00 Y W,R W,R W,R R Benzo(g,h,i)perylene 191242 N W,R W,R W,R R
Benzo(k)fluoranthene 207089 3.90E-01 1.20E+00 Y W,R W,R W,R R 1,3-Butadiene 106990 6.00E-01 2.00E+00 9.00E+00 6.60E+02 N W,R W,R W,R R Chrysene 218019 3.90E-02 1.20E-01 Y W,R W,R W,R R
Dibenzo(a,h)anthracene 53703 4.10E+00 4.10E+00 Y W,R W,R W,R R Fluoranthene 206440 N W,R W,R W,R R
Fluorene 86737 N W,R W,R W,R R
Formaldehyde 50000 2.10E-02 9.00E+00 9.00E+00 5.50E+01 N W,R W,R W,R R Indeno(1,2,3-cd)pyrene 193395 3.90E-01 1.20E+00 Y W,R W,R W,R R Naphthalene 91203 1.20E-01 9.00E+00 N W,R W,R W,R R
Phenanthrene 85018 N W,R W,R W,R R
Pyrene 129000 N W,R W,R W,R R
Toluene 108883 4.20E+02 8.30E+02 5.00E+03 N W,R W,R W,R R Xylenes 1330207 7.00E+02 2.20E+04 N W,R W,R W,R R
Aluminum 7429905 N W,R W,R W,R R
Modeled Exposure Pathways3
Substance Name CAS No.

Multi
Pathway
Substance
Acute2
Inhalation
REL (µg/m3)
Chronic RELs2 Chronic 8-HR2
Inhalation REL
(µg/m3
)
Cancer Potency Values1
217
Table 3. Toxicity Data by Substance - Exposure Pathways CalPortland Company
Permit Number: 02‐VP‐07b
Inhalation
(mg/kg-day)-1
Oral
(mg/kg-day)-1
Inhalation
(µg/m3
)
Oral
(mg/kg BW-day) Inhalation Soil
Ingestion Dermal Mother's Milk
Modeled Exposure Pathways3
Substance Name CAS No.

Multi
Pathway
Substance
Acute2
Inhalation
REL (µg/m3)
Chronic RELs2 Chronic 8-HR2
Inhalation REL
(µg/m3
)
Cancer Potency Values1
Phosphorus 7723140 N W,R W,R W,R R
Ammonia 7664417 2.00E+02 3.20E+03 N W,R W,R W,R R
2-methylnaphthalene 91576 N W,R W,R W,R R
Benzo(e)pyrene 192972 N W,R W,R W,R R
Perylene 198550 N W,R W,R W,R R
PCDD 1085 N W,R W,R W,R R
PCDF 1080 1.30E+05 1.30E+05 4.00E-05 1.00E-08 Y W,R W,R W,R R Hydrochloric Acid 7647010 9.00E+00 2.10E+03 N W,R W,R W,R R Diesel engine exhaust,
particulate matter 9901 1.10E+00 5.00E+00 N W,R W,R W,R R 1,2,4-Trimethylbenzene 95636 N W,R W,R W,R R
Chlorine 7782505 2.00E-01 2.10E+02 N W,R W,R W,R R
Ethylbenzene 100414 8.70E-03 2.00E+03 N W,R W,R W,R R
Hexane (-n) 110543 7.00E+03 N W,R W,R W,R R
Methanol 67561 4.00E+03 2.80E+04 N W,R W,R W,R R
Methyl ethyl ketone (MEK) 78933 1.30E+04 N W,R W,R W,R R Methyl tert-butyl ether
(MTBE) 1634044 1.80E-03 8.00E+03 N W,R W,R W,R R
Styrene 100425 9.00E+02 2.10E+04 N W,R W,R W,R R
Cumene 98828 N W,R W,R W,R R
Cyclohexane 110827 N W,R W,R W,R R
2,2,4TriMePentn 540841 N W,R W,R W,R R
DEGlycol 111466 N W,R W,R W,R R

1. Cancer potency values from OEHHA Appendix A: Hot Spots Unit Risk and Cancer Potency Values, updated January 2025, and CARB HARP2 pollutant database.

2. Noncancer chronic and acute RELs from OEHHA Acute, 8-hour and Chronic Reference Exposure Level (REL) Summary, updated October 2023, and CARB HARP2 pollutant database.

3. W: Modeled for worker receptors, R: Modeled for residential receptors 218
Table 4. Toxicity Data by Substance - Target Organs
CalPortland CompanyPermit Number: 02‐VP‐07b

CV CNS IMMUN KIDN GILV REPRO RESP SKIN EYE BONE ENDO HEM ODOR CV CNS IMMUN KIDN GILV REPRO RESP SKIN EYE BONE ENDO HEM ODOR Antimony 7440360
Arsenic 7440382 X X X X X X X X
Barium 7440393
Beryllium 7440417 XX
Cadmium 7440439 XX
Chromium 7440473
Cobalt 7440484
Copper 7440508 X
Crystalline Silica 1175 X
Hexavalent Chromium 18540299 X
Lead 7439921
Manganese 7439965 X
Mercury 7439976 X X XXX
Nickel 7440020 X XX
Selenium 7782492 XX X
Silver 7440224
Thallium 7440280
Vanadium 7440622 X X
Zinc 7440666
Acenaphthene 83329
Acenaphthylene 208968
Acetaldehyde 75070 X X X
Acrolein 107028 X X X
Anthracene 120127
Benzene 71432 X X X X
Benzo(a)anthracene 56553
Benzo(a)pyrene 50328
Benzo(b)fluoranthene 205992
Benzo(g,h,i)perylene 191242
Benzo(k)fluoranthene 207089
1,3-Butadiene 106990 X X
Chrysene 218019
Dibenzo(a,h)anthracene 53703
Fluoranthene 206440
Fluorene 86737
Formaldehyde 50000 X X
Indeno(1,2,3-cd)pyrene 193395
Naphthalene 91203 X
Phenanthrene 85018
Pyrene 129000
Toluene 108883 X X X X
Xylenes 1330207 X X X X X X
Aluminum 7429905
Phosphorus 7723140
Ammonia 7664417 X X X
2-methylnaphthalene 91576
Benzo(e)pyrene 192972
Perylene 198550
PCDD 1085
PCDF 1080 XXX XX
Hydrochloric Acid 7647010 X X X
Substance Name Acute Target Organs Chronic Target Organs CAS No. 219
Table 4. Toxicity Data by Substance - Target Organs
CalPortland CompanyPermit Number: 02‐VP‐07b
CV CNS IMMUN KIDN GILV REPRO RESP SKIN EYE BONE ENDO HEM ODOR CV CNS IMMUN KIDN GILV REPRO RESP SKIN EYE BONE ENDO HEM ODOR Substance Name Acute Target Organs Chronic Target Organs CAS No.

Diesel engine exhaust,
particulate matter 9901 X
1,2,4-Trimethylbenzene 95636
Chlorine 7782505 X X X
Ethylbenzene 100414 XXX X
Hexane (-n) 110543 X
Methanol 67561 X X
Methyl ethyl ketone (MEK) 78933 X X
Methyl tert-butyl ether
(MTBE) 1634044 XX X
Styrene 100425 X X X X
Cumene 98828
Cyclohexane 110827
2,2,4TriMePentn 540841
DEGlycol 111466
220
Table 5. Emission Source Parameters
CalPortland CompanyPermit Number: 02‐VP‐07b
Stack ID Source ID Source Name Plant Area UTM East (m) UTM North (m) Base Elevation (m) Release Height (ft) Diameter (ft) Temperature (F) Velocity (ft/s) X 1 (m) Y 1 (m) Angle Initial Lateral Dimension (m) Initial Vertical Dimension (m) Emission Rate2 (g/s-m2) r115 R-115 R-115 Drill Dust Collector (Insignificant) Quarries and Crushing Department 559280.7 4510861.9 561.92 10.00 0.30 83 19.40 1 b13 B-13 Raise Shaft Sly Dust Collector Quarries and Crushing Department 558740.3 4511026.3 498.67 8.00 0.51 76 9.28 1b25 B-25 Limestone Belt Transfer Sly Dust Collector Quarries and Crushing Department 558047.1 4509948.4 335.71 15.00 0.30 72 23.41 1 c34 C-34 Secondary Crusher BHA Model 505-4220 Dust Collector Quarries and Crushing Department 557258.8 4509912.3 307.19 62.00 0.91 86 15.74 1 c36 C-36 Shale Crusher Sly Dust Collector Quarries and Crushing Department 557368.9 4509979.8 324.62 20.00 0.51 86 11.62 1c38 C-38 Transfer Building Sly Dust Collector Quarries and Crushing Department 557232.3 4509953.2 311.31 25.00 0.30 86 23.54 1 c160 C-160 C-164 Belt Dust Collector (Insignificant) Quarries and Crushing Department 557209.9 4509895.3 308.88 5.00 0.52 83 3.17 1c172 C-1721 Raw Mix Tanks Dust Collector Raw Milling and Kiln Department 557040.7 4509828.5 309.29 79.00 0.56 80 6.77 1 f173 F-1731 Blending Silos Dust Collector Raw Milling and Kiln Department 557150.2 4509753.8 303.79 86.00 1.03 121 5.56 1 f184 F-1841 Raw Storage Silo Dust Collector Raw Milling and Kiln Department 557135.7 4509772.6 303.76 138.00 0.46 112 19.15 1 f350 F-3501 Pre-Heater Kiln Feed Bin Dust Collector Raw Milling and Kiln Department 557081.7 4509766.6 306.63 223.00 0.67 114 17.61 1 g206 G-2061 Coal Silo Dust Collector Raw Milling and Kiln Department 557140.5 4509700.5 303.21 95.00 0.40 99 22.51 1 g4181 G-418-11 Clinker Handling Dust Collector Raw Milling and Kiln Department 557136.1 4509727.1 302.95 26.00 0.67 111 11.95 1 g425 G-4251 Deep Bucket Conveyor Dust Collector Raw Milling and Kiln Department 557182.8 4509695.3 301.57 41.00 0.40 91 11.25 1g465 G-4651 Indirect Coal Firing System Dust Collector Raw Milling and Kiln Department 557169.8 4509729.6 302.62 96.00 0.43 126 76.40 1 s210 S-2101 Roller Mill Rock Feeders Dust Collector Raw Milling and Kiln Department 557040.8 4509819.6 309.28 66.00 0.48 86 15.40 1s253 S-2531 Bucket (meal) Elevator Dust Collector Raw Milling and Kiln Department 557088.1 4509813.3 306.64 31.00 0.71 93 14.34 1 g451 G-4511 Portable Silo 250 WAM Dust Collector Raw Milling and Kiln Department 557178.1 4509750.7 303.23 47.00 0.20 70 27.18 1d341 D-341 Gypsum Elevator Dust Collector Finish Grinding Department 557266.1 4509724.8 300.58 100.00 0.28 96 11.43 1 d1222 D-1222 Synthetic Gypsum Loading Dust Collector #1 Finish Grinding Department 557222.0 4509756.6 301.46 64.50 0.24 96 14.22 1d1241 D-1241 Synthetic Gypsum Loading Dust Collector #2 Finish Grinding Department 557216.9 4509756.6 301.25 64.50 0.34 96 7.11 1 bf046 BF046 D-46 Clinker Bin Discharge Dust Collector Finish Grinding Department 557227.2 4509745.5 301.77 8.60 0.27 220 35.93 1 bf05 BF05 D-5 Clinker Bin Discharge Dust Collector Finish Grinding Department 557232.5 4509742.4 302.01 10.01 0.27 220 35.93 1 bf042 BF042 D-42 Limestone Bin Discharge Dust Collector Finish Grinding Department 557237.9 4509739.4 301.87 10.99 0.27 220 35.93 1bf101 BF101 FM Tower #1 Dust Collector Finish Grinding Department 557251.6 4509734.3 301.46 41.24 0.31 220 77.62 1bf102 BF102 FM Tower #2 Dust Collector Finish Grinding Department 557277.5 4509714.8 300.45 37.50 0.27 220 33.54 1bf103 BF103 FM Tower #3 Dust Collector Finish Grinding Department 557253.0 4509658.9 300.23 50.00 0.27 220 33.54 1bf104 BF104 FM-BC-104 Transfer Dust Collector Finish Grinding Department 557306.5 4509628.8 299.16 62.50 0.27 220 33.54 1bf105 BF105 FM-BM-101 Mill Inlet Dust Collector Finish Grinding Department 557304.6 4509625.9 299.09 71.49 0.27 220 35.93 1 bf106 BF106 FM-BM-101 Mill Discharge Dust Collector Finish Grinding Department 557285.1 4509611.0 299.32 50.98 0.27 220 43.92 1 bf107 BF107 FM-CQ-101 Cement Cooler Transport Dust Collector Finish Grinding Department 557273.7 4509616.1 300.11 76.51 0.27 220 27.95 1bf108 BF108 FM-BE-103 Cement Storage Distribution Dust Collector Finish Grinding Department 557275.3 4509619.7 300.11 85.01 0.31 220 42.04 1 bf200 BF200 Mill separator dust collector Finish Grinding Department 557278.2 4509613.0 299.83 158.99 2.74 220 13.97 1 bf300 BF300 Mill sweep dust collector Finish Grinding Department 557278.2 4509613.0 299.83 158.99 2.74 220 3.99 1 j162 J-162 General Dust Collector Storage and Shipping Department 557244.9 4509632.5 300.29 108.00 1.03 121 9.07 1 j165 J-165 East Packer Dust Collector Storage and Shipping Department 557251.5 4509654.7 300.29 40.00 0.69 106 9.18 1j168 J-168 West Packer Dust Collector Storage and Shipping Department 557256.6 4509650.3 300.23 40.00 0.69 106 9.18 1j174 J-174 Truck Silos Dust Collector Storage and Shipping Department 557264.3 4509634.8 300.26 40.00 0.18 112 102.05 1j257 J-257 Truck Special Load Spout Storage and Shipping Department 557264.2 4509643.7 300.21 40.00 0.30 98 16.04 1j321 J-321 West Rail Silo Dust Collector Storage and Shipping Department 557225.2 4509661.2 300.29 45.00 0.67 113 6.68 1 j345 J-345 East Rail Silo Dust Collector Storage and Shipping Department 557238.0 4509652.4 300.19 45.00 0.41 110 17.94 1j350 J-350 Rail Silos Dust Collector Storage and Shipping Department 557232.8 4509665.7 300.22 84.00 0.25 127 21.79 1 j387 J-387 Truck Silo #4 Dust Collector Storage and Shipping Department 557276.9 4509637.1 300.13 66.00 0.37 98 14.37 1 j390 J-390 Truck Vacuum Dust Collector Storage and Shipping Department 557258.6 4509604.8 300.03 14.00 0.29 70 10.63 1 s260 S-260 Kiln/Raw Mill Raw Milling and Kiln Department 557093.7 4509784.0 306.49 277.00 2.13 350 30.13 1 r100a R-100A Detroit Model V-71 489 Brake Horsepower Diesel Engine Internal Combustion Engine Department 557161.1 4509748.4 303.62 4.75 0.20 740 59.38 1 m151 M-151
Caterpillar Model ZW3516-CAT, 2132 Brake Horsepower
Diesel Engine with Miratech Combikat Diesel Particulate Filters
Internal Combustion Engines Department 557162.3 4509821.8 303.46 6.92 0.20 941 194.81 1 m152 M-152
Caterpillar Model ZW3516-CAT, 2132 Brake Horsepower
Diesel Engine with Miratech Combikat Diesel Particulate Filters
Internal Combustion Engines Department 557165.2 4509820.9 303.95 6.92 0.20 941 194.81 1 m153 M-153
Caterpillar Model ZW3516-CAT, 2132 Brake Horsepower
Diesel Engine with Miratech Combikat Diesel Particulate Filters
Internal Combustion Engines Department 557168.5 4509819.5 304.29 6.92 0.20 941 194.81 1 m154 M-154
Caterpillar Model ZW3516-CAT, 2132 Brake Horsepower
Diesel Engine with Miratech Combikat Diesel Particulate Filters
Internal Combustion Engines Department 557171.8 4509818.7 304.65 6.92 0.20 941 194.81 1 221
Table 5. Emission Source Parameters
CalPortland CompanyPermit Number: 02‐VP‐07b
Stack ID Source ID Source Name Plant Area UTM East (m) UTM North (m) Base Elevation (m) Release Height (ft) Diameter (ft) Temperature (F) Velocity (ft/s) X 1 (m) Y 1 (m) Angle Initial Lateral Dimension (m) Initial Vertical Dimension (m) Emission Rate2 (g/s-m2) m155 M-155
Caterpillar Model ZW3516-CAT, 2132 Brake Horsepower
Diesel Engine with Miratech Combikat Diesel Particulate Filters
Internal Combustion Engines Department 557174.9 4509817.5 304.76 6.92 0.20 941 194.81 1 e1 E1 Diesel Engine for Miller Big Blue 500 D Welder N/A 558977.8 4511189.5 678.99 6.67 0.15 932 5.46 1 e2 E2 Deutz Model F3L-912 Diesel Engine for Miller Big Blue 400 D Welder N/A 558977.8 4511189.5 678.99 5.00 0.15 932 5.46 1 e4 E4 Deutz Model F3L-912 Diesel Engine for Miller Big Blue 400 D Welder N/A 557054.7 4509837.1 309.07 5.08 0.15 932 5.46 1 e3 E3 Diesel Engine for Miller Bobcat 250 Welder N/A 558975.3 4511188.6 678.59 5.33 0.15 932 5.46 1e5 E5 Kubota Model D902-EF01e Diesel Engine for Welder N/A 557307.5 4509737.0 301.03 2.92 0.15 932 5.46 1e6 E6 Onan Model Performer P16 Gasoline Engine for Lincoln Electric Ranger 8 K1418-1 Welder N/A 558966.1 4511188.3 676.67 5.58 0.20 932 3.07 1 e7 E7 Kohler Model CH12.5S for American IMC Compressors 3G3HV Compressor N/A 558968.1 4511188.0 677.14 7.00 0.20 932 3.07 1 e8 E8 Gasoline Engine for Kohler Compressor N/A 558970.2 4511188.1 677.72 7.00 0.20 932 3.07 1 e9 E9 NAPA Air Compressor Facility-Wide Operations 558966.1 4511188.3 676.67 6.58 0.15 932 5.46 1 limeston LIMESTON Limestone Quarry Roads Quarries and Crushing Department Varies Varies Varies 4.00 12 4 1.72E-02 shalequa SHALEQUA Shale Quarry Roads Quarries and Crushing Department Varies Varies Varies 4.00 8 4 7.09E-03 internal INTERNAL Plant Roads (Internal) Facility-Wide Operations Varies Varies Varies 2.00 14 2 6.76E-02 external EXTERNAL Plant Roads (External) Facility-Wide Operations Varies Varies Varies 4.00 14 4 1.18E-01 a1 A1 Quarry Limestone Storage Pile Quarries and Crushing Department 557387.5 4509889.8 316.51 50.00 50 89 -90 2.25E-04a2 A2 Clinker North Storage Pile 1 Raw Milling & Kiln Department 557170.3 4510092.3 329.48 9.72 50 75 45 2.67E-04 a3 A3 Clinker Mid Storage Pile Raw Milling & Kiln Department 557122.7 4509921.3 313.09 10.71 25 9 -52 4.48E-03 a4 A4 Clinker South Storage Pile 1 Raw Milling & Kiln Department 557246.2 4509725.2 301.34 10.84 50 28 -57 7.09E-04a5 A5 Mill reject Storage Pile 1 Raw Milling & Kiln Department 557026.5 4509794.6 309.40 14.43 25 16 -55 2.47E-03 a8 A8 Coal Storage Pile Raw Milling & Kiln Department 557115.6 4509684.8 306.51 29.09 83.03 20 70 6.07E-04 a9 A9 Coke Storage Pile 1 Raw Milling & Kiln Department 557102.9 4509698.5 306.83 14.18 50 69 -90 2.92E-04 b51 B-51 Dyed Diesel Tank - 4200 gal Facility-Wide Operations 558988.7 4511191.7 679.53 1.68 0.64 0.39 1 b52 B-52 Gasoline Tank - 350 gal Facility-Wide Operations 558991.1 4511191.8 679.43 0.91 0.43 0.21 1 b54 B-54 Motor Oil Tank - 250 gal Facility-Wide Operations 558983.0 4511193.0 680.38 1.52 0.43 0.35 1 k41 K-41 Clear Diesel Tank - 1,000 gal Facility-Wide Operations 557350.0 4509772.0 304.89 1.52 0.64 0.35 1k42 K-42 Gasoline Tank - 1,000 gal Facility-Wide Operations 557348.0 4509768.0 304.79 1.52 0.64 0.35 1k46 K-46 Dyed Diesel Tank - 10,000 gal Facility-Wide Operations 557344.9 4509770.8 304.05 3.20 0.85 0.74 1 m143 M-143 Dyed Diesel Tank - 350 gal Facility-Wide Operations 557168.0 4509814.0 303.26 0.91 0.21 0.21 1m142 M-142 Dyed Diesel Tank - 10,000 gal Facility-Wide Operations 557171.0 4509804.0 302.88 3.20 0.85 0.74 1 r279 R-279 Gasoline Tank - 225 gal Facility-Wide Operations 558952.0 4511212.0 675.22 0.61 0.21 0.14 1 278dies 278-Diesel-420 Diesel Tank - 420 gal Facility-Wide Operations 558934.7 4511208.6 673.44 1.18 0.32 0.27 1 279dies 279-Diesel-420 Diesel Tank - 420 gal Facility-Wide Operations 558937.4 4511209.2 673.97 1.18 0.32 0.27 1 fgtank1 FGTank1 Finish Grinding Tank 1 - 16,000 gal Facility-Wide Operations 557184.7 4509787.8 302.26 5.03 1.98 1.17 1 tank20 Tank 20 Diesel Tank - 550 gal Facility-Wide Operations 557068.0 4509778.0 306.79 0.61 0.32 0.14 1 lsb LSB Limestone Quarry Blasting Quarries and Crushing Department 559125.9 4510837.8 605.71 5.03 15.33 15.35 1 buldoz BULDOZ Shale Quarry Bulldozing Quarries and Crushing Department 555995.8 4508210.0 359.82 0.00 0.57 1.13 1 scrap SCRAPE Shale Quarry Scraping Quarries and Crushing Department 556001.8 4508187.2 357.38 0.00 0.57 1.13 1 lsd LSD Limestone Quarry Drill Quarries and Crushing Department 559280.7 4510861.9 561.92 0.00 0.57 1.13 1 truckpw TRUCKPW Solvent Parts Washer - 55 gal Facility-Wide Operations 557338.0 4509696.0 301.09 0.46 0.21 0.11 1 m11 M1/1 Limestone Loader to Dump Truck Quarries and Crushing Department 558920.6 4511159.1 660.36 6.10 0.57 2.84 1m16 M1/6 Portable limestone crusher Quarries and Crushing Department 558920.6 4511159.1 660.36 2.44 0.57 1.13 1 m17 M1/7 Shale Loader to Shale Dump Truck Quarries and Crushing Department 558920.6 4511159.1 660.36 6.10 0.57 2.84 1m18 M1/8 Shale Dump Truck to Shale Barn Quarries and Crushing Department 557328.4 4510018.8 323.99 7.62 0.57 3.54 1 m19 M1/9 Shale Barn to Hopper Quarries and Crushing Department 557358.0 4509980.4 324.58 0.91 0.43 0.43 1 m110 M1/10 Hopper to C-3 Apron Feeder Quarries and Crushing Department 557357.1 4509974.1 324.59 0.00 0.43 0.85 1m111 M1/11 C-3 Apron Feeder to C-4 Vibrating Grizzly Quarries and Crushing Department 557353.7 4509972.2 324.66 0.00 0.43 0.85 1m112 M1/12 C-4 Vibrating Grizzly to C-5 Shale Crusher or Conveyor Quarries and Crushing Department 557351.6 4509971.8 324.70 0.00 0.43 0.85 1 m21 M2/1 Coal Railcar to Vibrator G-193/194 Raw Milling and Kiln Department 557106.6 4509664.9 303.37 0.00 0.43 0.85 1 m22 M2/2 Vibrator G-193/194 to Conveyor Belt G-196 Raw Milling and Kiln Department 557111.0 4509666.1 303.30 0.00 0.43 0.85 1m23 M2/3 Conveyor Belt G-196 to Bucket Elevator G-198 Raw Milling and Kiln Department 557116.3 4509667.7 303.54 0.00 0.43 0.85 1m24 M2/4 Bucket Elevator G-198 to Belt Conveyor G-200 Raw Milling and Kiln Department 557121.2 4509670.1 303.72 16.76 0.43 7.80 1 m25 M2/5 Weigh Feeder G-204 to Belt Conveyor G-453 Raw Milling and Kiln Department 557142.4 4509699.2 303.04 3.05 0.43 1.42 1m26 M2/6 Belt Conveyor G-453 to Feed Belt G-455 Raw Milling and Kiln Department 557147.7 4509701.4 302.78 2.44 0.43 1.13 1 m211 M2/11 Emergecy Clinker Discharge to Dustless Chute Raw Milling and Kiln Department 557143.6 4509735.4 303.19 2.13 0.57 0.99 1 m3 M3 Gypsum Railcar to Drag Chain Conveyor D-31 Raw Milling and Kiln Department 557266.6 4509726.4 300.60 0.00 0.43 0.85 1

1. Square length or rectangular side. 2. For sources in AERMOD, emissions are 1 g/s. For sources which occupy an area, the 1 g/s is distributed over the area of the source. 222
Table 6. Building Dimensions
CalPortland CompanyPermit Number: 02‐VP‐07b
Building ID Height (m)1 East UTM2 North UTM2
BLD_17 4.4 557080.6 4509897.7
BLD_3C 6.97 557268.2 4509680
BLD_18 4.20 557162.4 4509821.3BLD_22 24.34 557068.7 4509824.9BLD_21 3.96 557150.3 4509741.5BLD_25 13.10 557244.3 4509542BLD_20 8.60 557102.7 4509672.7BLD_12 4.45 557237.6 4509791.3BLD_13 9.50 557288.1 4509700BLD_14 7.19 557334.7 4509718.7 BLD_16A 14.00 557337.5 4509982.8BLD_16B 7.90 557355.5 4509995BLD_19A 13.10 557165.1 4509719.2BLD_19B 13.10 557152.7 4509698.3 BLD_26 6.85 557345.6 4509764.1
BLD_3D 17.54 557279.7 4509638.7
ALTFBG 4.57 557150.6 4509841.7
BLD_5 34.29 557112.2 4509774.5BLD_1 35.40 557205.7 4509893.3BLD_6 34.29 557125.1 4509768.5BLD_7 34.29 557133.2 4509763.6BLD_8 34.29 557129.7 4509777.3BLD_9 34.29 557138.4 4509772 BLD_10B 22.10 557147.5 4509754.3BLD_10A 22.10 557154.2 4509766.3 BLD_4 73.01 557075.6 4509782.3BLD_2 56.88 557254.2 4509798.6 BLD_15 7.19 557370.9 4509668.7BLD_11 31.00 557152.5 4509738.2BLD_24 30.48 557264.6 4509927.5 BLD_14B 5.63 557318.9 4509698.1
BLD_23 20.00 557029 4509833.2
BLD_3A 8.77 557276.8 4509645.8BLD_3B 30.70 557239.6 4509655.6

2. UTM coordinates based on NAD 83.1. Heights for facility buildings based on the 2020 HRA. 223
Table 7a. Sensitive Receptors
CalPortland CompanyPermit Number: 02‐VP‐07b
Receptor Name1 Receptor ID UTM East (m) UTM North (m)
Little Ducklings Home Daycare 1462 555996.94 4507156.93Grand Oaks Elementary School 1463 554795.91 4503961.51Mattice Family Daycare 1464 554129.89 4504099.49

1. Sensitive receptors identified as part of the RRP HRA. 224
Table 7b. Sensitive Receptor Ground Level Concentrations CalPortland Company
Permit Number: 02‐VP‐07b
Annual 8-hour Hourly
Antimony 7440360 5.14E-07 5.14E-07 1.56E-04
Arsenic 7440382 4.84E-06 4.84E-06 1.80E-03
Barium 7440393 1.07E-04 1.07E-04 3.43E-02
Beryllium 7440417 1.40E-07 1.40E-07 6.25E-05
Cadmium 7440439 7.12E-07 7.12E-07 2.37E-04
Chromium 7440473 9.90E-06 9.90E-06 3.12E-03
Cobalt 7440484 1.01E-05 1.01E-05 3.27E-03
Copper 7440508 2.86E-05 2.86E-05 9.72E-03
Crystalline Silica 1175 1.67E-03 1.67E-03 4.33E-01
Hexavalent Chromium 18540299 2.20E-06 2.20E-06 7.08E-04 Lead 7439921 3.95E-06 3.95E-06 1.37E-03
Manganese 7439965 5.59E-04 5.59E-04 2.08E-01
Mercury 7439976 1.70E-06 1.70E-06 1.13E-03
Nickel 7440020 5.49E-05 5.49E-05 8.94E-03
Selenium 7782492 1.29E-06 1.29E-06 4.07E-04
Silver 7440224 3.02E-07 3.02E-07 1.01E-04
Thallium 7440280 5.11E-07 5.11E-07 1.37E-04
Vanadium 7440622 1.54E-04 1.54E-04 3.12E-02
Zinc 7440666 1.05E-04 1.05E-04 3.12E-02
Acenaphthene 83329 2.57E-09 2.57E-09 4.78E-06
Acenaphthylene 208968 6.41E-09 6.41E-09 1.66E-05
Acetaldehyde 75070 9.19E-07 9.19E-07 8.52E-03
Acrolein 107028 1.24E-07 1.24E-07 1.75E-03
Anthracene 120127 3.04E-09 3.04E-09 6.24E-06
Benzene 71432 5.14E-05 5.14E-05 1.63E-01
Benzo(a)anthracene 56553 2.84E-09 2.84E-09 5.62E-06
Benzo(a)pyrene 50328 1.27E-09 1.27E-09 7.68E-07
Benzo(b)fluoranthene 205992 1.17E-09 1.17E-09 4.79E-07
Benzo(g,h,i)perylene 191242 3.62E-09 3.62E-09 1.71E-03
Benzo(k)fluoranthene 207089 1.23E-09 1.23E-09 6.61E-07
1,3-Butadiene 106990 1.63E-07 1.63E-07 6.80E-03
Chrysene 218019 2.18E-08 2.18E-08 1.71E-02
Dibenzo(a,h)anthracene 53703 1.68E-09 1.68E-09 2.05E-06 Fluoranthene 206440 9.16E-09 9.16E-09 2.50E-05
Fluorene 86737 3.25E-08 3.25E-08 9.53E-05
Formaldehyde 50000 1.11E-04 1.11E-04 6.27E-02
Indeno(1,2,3-cd)pyrene 193395 1.47E-09 1.47E-09 1.38E-06 Naphthalene 91203 2.25E-07 2.25E-07 2.58E-02
Phenanthrene 85018 3.66E-08 3.66E-08 9.74E-05
Pyrene 129000 6.12E-09 6.12E-09 1.57E-05
Toluene 108883 5.86E-06 5.86E-06 5.00E-01
Xylenes 1330207 5.61E-06 5.61E-06 4.90E-01
Aluminum 7429905 5.17E-05 5.17E-05 7.67E-03
Phosphorus 7723140 4.77E-06 4.77E-06 7.07E-04
Ammonia 7664417 4.06E-04 4.06E-04 3.45E-01
2-methylnaphthalene 91576 4.91E-09 4.91E-09 9.77E-07
Benzo(e)pyrene 192972 1.07E-09 1.07E-09 1.56E-07
Perylene 198550 1.07E-09 1.07E-09 1.56E-07
PCDD 1085 9.61E-12 9.61E-12 7.62E-09
PCDF 1080 1.03E-11 1.03E-11 1.22E-08
Hydrochloric Acid 7647010 3.82E-04 3.82E-04 1.19E-01
Diesel engine exhaust, particulate matter 9901 5.58E-05 5.58E-05 1.59E+01 1,2,4-Trimethylbenzene 95636 3.22E-06 3.22E-06 3.43E-01 Chlorine 7782505 6.05E-08 6.05E-08 3.31E-03
Ethylbenzene 100414 6.07E-07 6.07E-07 5.40E-02
Hexane (-n) 110543 3.98E-06 3.98E-06 2.04E+00
Methanol 67561 6.25E-05 6.25E-05 3.19E-02
Methyl ethyl ketone (MEK) 78933 8.83E-09 8.83E-09 4.82E-04 Methyl tert-butyl ether (MTBE) 1634044 2.74E-07 2.74E-07 1.50E-02 Styrene 100425 1.91E-08 1.91E-08 1.04E-03
Cumene 98828 3.51E-08 3.51E-08 4.60E-03
Cyclohexane 110827 3.65E-07 3.65E-07 3.61E-02
2,2,4TriMePentn 540841 1.65E-06 1.65E-06 1.73E-01
DEGlycol 111466 2.52E-07 2.52E-07 4.40E-02
Chemical Name CAS Concentration (ug/m3
) Receptor Name Receptor ID
Little Ducklings
Home Daycare 1462
225
Table 7b. Sensitive Receptor Ground Level Concentrations CalPortland Company
Permit Number: 02‐VP‐07b
Annual 8-hour Hourly Chemical Name CAS Concentration (ug/m3 ) Receptor Name Receptor ID
Antimony 7440360 1.79E-07 5.14E-07 #N/A
Arsenic 7440382 1.24E-06 4.84E-06 6.10E-04
Barium 7440393 2.67E-05 1.07E-04 1.14E-02
Beryllium 7440417 3.27E-08 1.40E-07 2.38E-05
Cadmium 7440439 2.09E-07 7.12E-07 9.70E-05
Chromium 7440473 3.49E-06 9.90E-06 1.26E-03
Cobalt 7440484 1.78E-06 1.01E-05 8.53E-04
Copper 7440508 6.34E-06 2.86E-05 3.72E-03
Crystalline Silica 1175 5.68E-04 1.67E-03 1.11E-01
Hexavalent Chromium 18540299 8.97E-07 2.20E-06 2.75E-04 Lead 7439921 9.26E-07 3.95E-06 5.06E-04
Manganese 7439965 1.55E-04 5.59E-04 7.08E-02
Mercury 7439976 8.97E-07 1.70E-06 8.52E-04
Nickel 7440020 1.90E-05 5.49E-05 3.51E-03
Selenium 7782492 3.13E-07 1.29E-06 1.60E-04
Silver 7440224 3.66E-08 3.02E-07 1.93E-05
Thallium 7440280 1.44E-07 5.11E-07 5.04E-05
Vanadium 7440622 4.51E-05 1.54E-04 1.04E-02
Zinc 7440666 3.22E-05 1.05E-04 1.12E-02
Acenaphthene 83329 1.39E-09 2.57E-09 2.14E-06
Acenaphthylene 208968 3.44E-09 6.41E-09 7.29E-06
Acetaldehyde 75070 4.91E-07 9.19E-07 3.89E-03
Acrolein 107028 6.62E-08 1.24E-07 8.05E-04
Anthracene 120127 1.64E-09 3.04E-09 2.77E-06
Benzene 71432 2.80E-05 5.14E-05 9.01E-02
Benzo(a)anthracene 56553 1.53E-09 2.84E-09 2.50E-06
Benzo(a)pyrene 50328 6.92E-10 1.27E-09 3.87E-07
Benzo(b)fluoranthene 205992 6.41E-10 1.17E-09 2.61E-07
Benzo(g,h,i)perylene 191242 1.47E-09 3.62E-09 6.07E-04
Benzo(k)fluoranthene 207089 6.73E-10 1.23E-09 3.40E-07
1,3-Butadiene 106990 8.62E-08 1.63E-07 3.16E-03
Chrysene 218019 6.89E-09 2.18E-08 6.07E-03
Dibenzo(a,h)anthracene 53703 9.15E-10 1.68E-09 9.47E-07 Fluoranthene 206440 4.92E-09 9.16E-09 1.10E-05
Fluorene 86737 1.74E-08 3.25E-08 4.17E-05
Formaldehyde 50000 6.06E-05 1.11E-04 3.94E-02
Indeno(1,2,3-cd)pyrene 193395 7.97E-10 1.47E-09 6.52E-07 Naphthalene 91203 1.14E-07 2.25E-07 9.32E-03
Phenanthrene 85018 1.97E-08 3.66E-08 4.30E-05
Pyrene 129000 3.29E-09 6.12E-09 6.91E-06
Toluene 108883 2.58E-06 5.86E-06 2.59E-01
Xylenes 1330207 2.22E-06 5.61E-06 2.09E-01
Aluminum 7429905 2.83E-05 5.17E-05 5.92E-03
Phosphorus 7723140 2.61E-06 4.77E-06 5.46E-04
Ammonia 7664417 2.22E-04 4.06E-04 2.66E-01
2-methylnaphthalene 91576 2.69E-09 4.91E-09 7.54E-07
Benzo(e)pyrene 192972 5.85E-10 1.07E-09 1.21E-07
Perylene 198550 5.85E-10 1.07E-09 1.21E-07
PCDD 1085 5.26E-12 9.61E-12 5.88E-09
PCDF 1080 5.66E-12 1.03E-11 9.43E-09
Hydrochloric Acid 7647010 1.76E-04 3.82E-04 6.52E-02
Diesel engine exhaust, particulate matter 9901 1.90E-05 5.58E-05 4.14E+00 1,2,4-Trimethylbenzene 95636 1.14E-06 3.22E-06 1.31E-01 Chlorine 7782505 3.18E-08 6.05E-08 1.54E-03
Ethylbenzene 100414 2.68E-07 6.07E-07 2.60E-02
Hexane (-n) 110543 1.87E-06 3.98E-06 1.38E+00
Methanol 67561 1.84E-05 6.25E-05 9.97E-03
Methyl ethyl ketone (MEK) 78933 4.64E-09 8.83E-09 2.25E-04 Methyl tert-butyl ether (MTBE) 1634044 1.44E-07 2.74E-07 6.96E-03 Styrene 100425 1.00E-08 1.91E-08 4.87E-04
Cumene 98828 1.54E-08 3.51E-08 2.56E-03
Cyclohexane 110827 1.61E-07 3.65E-07 2.09E-02
2,2,4TriMePentn 540841 7.29E-07 1.65E-06 1.01E-01
DEGlycol 111466 6.95E-08 2.52E-07 1.39E-02
Grand Oaks
Elementary
School
1463
226
Table 7b. Sensitive Receptor Ground Level Concentrations CalPortland Company
Permit Number: 02‐VP‐07b
Annual 8-hour Hourly Chemical Name CAS Concentration (ug/m3 ) Receptor Name Receptor ID
Antimony 7440360 1.51E-07 5.14E-07 6.96E-05
Arsenic 7440382 9.96E-07 4.84E-06 5.50E-04
Barium 7440393 2.14E-05 1.07E-04 1.02E-02
Beryllium 7440417 2.64E-08 1.40E-07 2.13E-05
Cadmium 7440439 1.69E-07 7.12E-07 8.57E-05
Chromium 7440473 2.77E-06 9.90E-06 1.13E-03
Cobalt 7440484 1.42E-06 1.01E-05 7.70E-04
Copper 7440508 5.16E-06 2.86E-05 3.17E-03
Crystalline Silica 1175 4.62E-04 1.67E-03 1.27E-01
Hexavalent Chromium 18540299 7.05E-07 2.20E-06 2.46E-04 Lead 7439921 7.51E-07 3.95E-06 4.43E-04
Manganese 7439965 1.25E-04 5.59E-04 6.45E-02
Mercury 7439976 7.63E-07 1.70E-06 8.74E-04
Nickel 7440020 1.42E-05 5.49E-05 3.02E-03
Selenium 7782492 2.54E-07 1.29E-06 1.39E-04
Silver 7440224 2.99E-08 3.02E-07 1.84E-05
Thallium 7440280 1.19E-07 5.11E-07 4.74E-05
Vanadium 7440622 3.40E-05 1.54E-04 9.00E-03
Zinc 7440666 2.57E-05 1.05E-04 1.01E-02
Acenaphthene 83329 1.19E-09 2.57E-09 2.45E-06
Acenaphthylene 208968 2.94E-09 6.41E-09 8.39E-06
Acetaldehyde 75070 4.19E-07 9.19E-07 4.04E-03
Acrolein 107028 5.63E-08 1.24E-07 8.19E-04
Anthracene 120127 1.40E-09 3.04E-09 3.18E-06
Benzene 71432 2.38E-05 5.14E-05 7.50E-02
Benzo(a)anthracene 56553 1.31E-09 2.84E-09 2.87E-06
Benzo(a)pyrene 50328 5.89E-10 1.27E-09 4.31E-07
Benzo(b)fluoranthene 205992 5.46E-10 1.17E-09 2.86E-07
Benzo(g,h,i)perylene 191242 1.23E-09 3.62E-09 7.60E-04
Benzo(k)fluoranthene 207089 5.73E-10 1.23E-09 3.77E-07
1,3-Butadiene 106990 7.28E-08 1.63E-07 3.14E-03
Chrysene 218019 5.58E-09 2.18E-08 7.59E-03
Dibenzo(a,h)anthracene 53703 7.80E-10 1.68E-09 1.08E-06 Fluoranthene 206440 4.20E-09 9.16E-09 1.26E-05
Fluorene 86737 1.49E-08 3.25E-08 4.80E-05
Formaldehyde 50000 5.16E-05 1.11E-04 4.02E-02
Indeno(1,2,3-cd)pyrene 193395 6.79E-10 1.47E-09 7.36E-07 Naphthalene 91203 9.70E-08 2.25E-07 1.15E-02
Phenanthrene 85018 1.68E-08 3.66E-08 4.94E-05
Pyrene 129000 2.81E-09 6.12E-09 7.95E-06
Toluene 108883 2.17E-06 5.86E-06 2.22E-01
Xylenes 1330207 1.84E-06 5.61E-06 2.15E-01
Aluminum 7429905 2.41E-05 5.17E-05 6.07E-03
Phosphorus 7723140 2.23E-06 4.77E-06 5.60E-04
Ammonia 7664417 1.89E-04 4.06E-04 2.73E-01
2-methylnaphthalene 91576 2.29E-09 4.91E-09 7.73E-07
Benzo(e)pyrene 192972 4.99E-10 1.07E-09 1.24E-07
Perylene 198550 4.99E-10 1.07E-09 1.24E-07
PCDD 1085 4.48E-12 9.61E-12 6.03E-09
PCDF 1080 4.82E-12 1.03E-11 9.67E-09
Hydrochloric Acid 7647010 1.47E-04 3.82E-04 7.00E-02
Diesel engine exhaust, particulate matter 9901 1.51E-05 5.58E-05 3.12E+00 1,2,4-Trimethylbenzene 95636 9.30E-07 3.22E-06 1.50E-01 Chlorine 7782505 2.67E-08 6.05E-08 1.53E-03
Ethylbenzene 100414 2.24E-07 6.07E-07 2.40E-02
Hexane (-n) 110543 1.59E-06 3.98E-06 9.83E-01
Methanol 67561 1.41E-05 6.25E-05 1.17E-02
Methyl ethyl ketone (MEK) 78933 3.90E-09 8.83E-09 2.23E-04 Methyl tert-butyl ether (MTBE) 1634044 1.21E-07 2.74E-07 6.90E-03 Styrene 100425 8.44E-09 1.91E-08 4.82E-04
Cumene 98828 1.31E-08 3.51E-08 2.04E-03
Cyclohexane 110827 1.37E-07 3.65E-07 1.60E-02
2,2,4TriMePentn 540841 6.19E-07 1.65E-06 7.67E-02
DEGlycol 111466 5.65E-08 2.52E-07 2.11E-02
Mattice Family
Daycare 1464
227
Table 8. PMI Cancer Risk by Substance and Exposure Pathway CalPortland Company
Permit Number: 02‐VP‐07b
Receptor ID: 530
Location: 557254.9 UTM E 4509428.3 UTM N
Chemical Name CAS Concentration
(ug/m3
) Inhalation Soil Dermal Mother's Milk Total Contribution Antimony 7440360 2.16E-06 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00% Arsenic 7440382 5.40E-05 4.02E-07 2.67E-06 1.09E-07 0.00E+00 3.18E-06 13.63% Barium 7440393 1.43E-03 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00% Beryllium 7440417 1.24E-06 6.48E-09 0.00E+00 0.00E+00 0.00E+00 6.48E-09 0.03% Cadmium 7440439 1.02E-05 9.48E-08 0.00E+00 0.00E+00 0.00E+00 9.48E-08 0.41% Chromium 7440473 2.24E-04 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00% Cobalt 7440484 7.83E-05 1.31E-06 0.00E+00 0.00E+00 0.00E+00 1.31E-06 5.61% Copper 7440508 2.59E-04 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00% Silica, Crystln 1175 2.72E-02 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00% Cr(VI) 18540299 5.19E-05 1.64E-05 8.41E-07 1.14E-08 0.00E+00 1.73E-05 73.90% Lead 7439921 4.04E-05 1.05E-09 1.16E-08 2.36E-10 1.39E-10 1.30E-08 0.06% Manganese 7439965 6.04E-03 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00% Mercury 7439976 4.12E-06 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00% Nickel 7440020 1.43E-03 8.09E-07 0.00E+00 0.00E+00 0.00E+00 8.09E-07 3.46% Selenium 7782492 1.88E-05 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00% Silver 7440224 9.28E-07 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00% Thallium 7440280 5.49E-06 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00% Vanadium 7440622 3.23E-03 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00% Zinc 7440666 1.99E-03 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00% Benzene 71432 9.81E-05 6.08E-09 0.00E+00 0.00E+00 0.00E+00 6.08E-09 0.03% B[g,h,i]perylen 191242 8.95E-08 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00% Chrysene 218019 8.70E-07 1.28E-11 3.56E-10 3.14E-11 1.11E-10 5.10E-10 0.00% Cumene 98828 5.35E-07 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00% Cyclohexane 110827 5.44E-06 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00% DEGlycol 111466 1.17E-05 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00% Ethyl Benzene 100414 9.79E-06 5.28E-11 0.00E+00 0.00E+00 0.00E+00 5.28E-11 0.00% Hexane 110543 4.05E-05 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00% 2,2,4TriMePentn 540841 2.45E-05 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00% Naphthalene 91203 1.61E-06 1.20E-10 0.00E+00 0.00E+00 0.00E+00 1.20E-10 0.00% Toluene 108883 9.50E-05 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00% 1,2,4TriMeBenze 95636 1.01E-04 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00% Xylenes 1330207 1.36E-04 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00% Methanol 67561 3.79E-03 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00% HCl 7647010 8.20E-03 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00% Acenaphthene 83329 4.76E-09 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00% Acenaphthylene 208968 1.28E-08 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00% Acetaldehyde 75070 1.99E-06 1.23E-11 0.00E+00 0.00E+00 0.00E+00 1.23E-11 0.00% Acrolein 107028 2.75E-07 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00% Anthracene 120127 5.75E-09 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00% B[a]anthracene 56553 5.33E-09 7.82E-13 8.72E-12 7.70E-13 5.39E-12 1.57E-11 0.00% B[a]P 50328 2.03E-09 2.98E-12 3.33E-11 2.94E-12 2.06E-11 5.98E-11 0.00% B[b]fluoranthen 205992 1.84E-09 2.70E-13 3.01E-12 2.65E-13 1.86E-12 5.40E-12 0.00% B[k]fluoranthen 207089 1.96E-09 2.88E-13 3.21E-12 2.83E-13 1.98E-12 5.76E-12 0.00% 1,3-Butadiene 106990 4.14E-07 1.54E-10 0.00E+00 0.00E+00 0.00E+00 1.54E-10 0.00% D[a,h]anthracen 53703 2.90E-09 4.48E-12 1.63E-11 1.43E-12 1.00E-11 3.22E-11 0.00% Fluoranthene 206440 1.85E-08 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00% Fluorene 86737 6.70E-08 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00% Formaldehyde 50000 1.69E-04 2.20E-09 0.00E+00 0.00E+00 0.00E+00 2.20E-09 0.01% In[1,2,3-cd]pyr 193395 2.45E-09 3.59E-13 4.01E-12 3.53E-13 2.48E-12 7.19E-12 0.00% Phenanthrene 85018 7.34E-08 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00% Pyrene 129000 1.22E-08 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00% Aluminum 7429905 7.83E-05 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00% Phosphorus 7723140 7.22E-06 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00% NH3 7664417 6.14E-04 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00% 2MeNaphthalene 91576 7.43E-09 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00% B[e]pyrene 192972 1.62E-09 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00% Perylene 198550 1.62E-09 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00% Dioxins-w/ 1085 1.45E-11 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00% DiBenFurans(Cl) 1080 1.56E-11 7.66E-10 1.27E-08 6.00E-10 7.33E-09 2.14E-08 0.09% DieselExhPM 9901 9.48E-04 6.46E-07 0.00E+00 0.00E+00 0.00E+00 6.46E-07 2.77% Chlorine 7782505 1.62E-07 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00% MEK 78933 2.37E-08 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00% Me t-ButylEther 1634044 7.33E-07 8.18E-13 0.00E+00 0.00E+00 0.00E+00 8.18E-13 0.00% Styrene 100425 5.13E-08 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00% Total 1.97E-05 3.54E-06 1.21E-07 7.62E-09 2.34E-05 100.00% 228
Table 9. PMI Cancer Risk by Source and Exposure Pathway CalPortland Company
Permit Number: 02‐VP‐07b
Receptor ID: 530
Location: 557254.9 UTM E 4509428.3 UTM N
Source ID Source Name Inhalation Soil Dermal Mother's Milk Total Contribution r115 R-115 Drill Dust Collector (Insignificant) 5.52E-10 2.08E-10 9.21E-12 1.39E-11 7.83E-10 0.00% b13 Raise Shaft Sly Dust Collector 2.20E-09 1.23E-09 4.81E-11 6.05E-14 3.48E-09 0.01% b25 Limestone Belt Transfer Sly Dust Collector 4.19E-09 2.35E-09 9.16E-11 1.15E-13 6.63E-09 0.03% c34 Secondary Crusher BHA Model 505-4220 Dust
Collector 2.19E-07 1.23E-07 4.78E-09 6.01E-12 3.46E-07 1.48% c36 Shale Crusher Sly Dust Collector 2.09E-08 1.14E-08 4.54E-10 5.18E-13 3.27E-08 0.14% c38 Transfer Building Sly Dust Collector 5.80E-08 3.49E-08 1.37E-09 1.08E-12 9.43E-08 0.40% c160 C-164 Belt Dust Collector (Insignificant) 2.26E-07 1.36E-07 5.36E-09 4.22E-12 3.68E-07 1.58% c172 Raw Mix Tanks Dust Collector 3.80E-08 2.29E-08 8.99E-10 7.09E-13 6.17E-08 0.26% f173 Blending Silos Dust Collector 2.23E-07 1.34E-07 5.28E-09 4.17E-12 3.63E-07 1.55% f184 Raw Storage Silo Dust Collector 8.67E-08 5.23E-08 2.05E-09 1.62E-12 1.41E-07 0.60% f350 Pre-Heater Kiln Feed Bin Dust Collector 8.05E-08 4.85E-08 1.91E-09 1.50E-12 1.31E-07 0.56% g206 Coal Silo Dust Collector 2.13E-07 1.09E-08 4.00E-10 4.21E-13 2.25E-07 0.96% g4181 Clinker Handling Dust Collector 4.70E-07 7.66E-08 2.59E-09 3.45E-12 5.50E-07 2.36% g425 Deep Bucket Conveyor Dust Collector 2.18E-07 3.55E-08 1.20E-09 1.60E-12 2.55E-07 1.09% g465 Indirect Coal Firing System Dust Collector 8.31E-07 4.23E-08 1.56E-09 1.64E-12 8.75E-07 3.75% s210 Roller Mill Rock Feeders Dust Collector 2.93E-07 3.88E-08 1.24E-09 8.39E-13 3.33E-07 1.43% s253 Bucket (meal) Elevator Dust Collector 1.06E-07 6.36E-08 2.50E-09 1.97E-12 1.72E-07 0.74% g451 Portable Silo 250 WAM Dust Collector 6.43E-08 3.28E-09 1.22E-10 4.34E-14 6.77E-08 0.29% d341 Gypsum Elevator Dust Collector 2.47E-08 5.88E-09 2.12E-10 1.14E-13 3.08E-08 0.13% d1222 Synthetic Gypsum Loading Dust Collector #1 1.94E-08 4.62E-09 1.66E-10 8.98E-14 2.42E-08 0.10% d1241 Synthetic Gypsum Loading Dust Collector #2 2.43E-08 5.76E-09 2.08E-10 1.12E-13 3.02E-08 0.13% bf046 D-46 Clinker Bin Discharge Dust Collector 8.45E-07 1.12E-07 3.56E-09 2.42E-12 9.61E-07 4.12% bf05 D-5 Clinker Bin Discharge Dust Collector 8.23E-07 1.09E-07 3.47E-09 2.35E-12 9.35E-07 4.01% bf042 D-42 Limestone Bin Discharge Dust Collector 8.10E-07 1.07E-07 3.41E-09 2.32E-12 9.21E-07 3.95% bf101 FM Tower #1 Dust Collector 5.91E-07 7.83E-08 2.49E-09 1.69E-12 6.72E-07 2.88% bf102 FM Tower #2 Dust Collector 6.27E-07 8.30E-08 2.64E-09 1.79E-12 7.13E-07 3.05% bf103 FM Tower #3 Dust Collector 6.34E-07 8.39E-08 2.67E-09 1.81E-12 7.20E-07 3.09% bf104 FM-BC-104 Transfer Dust Collector 4.50E-07 5.96E-08 1.90E-09 1.29E-12 5.12E-07 2.19% bf105 FM-BM-101 Mill Inlet Dust Collector 4.28E-07 5.67E-08 1.81E-09 1.23E-12 4.87E-07 2.09% bf106 FM-BM-101 Mill Discharge Dust Collector 1.14E-06 1.52E-07 4.83E-09 3.27E-12 1.30E-06 5.58% bf107 FM-CQ-101 Cement Cooler Transport Dust
Collector 6.06E-07 8.03E-08 2.56E-09 1.73E-12 6.89E-07 2.95% bf108 FM-BE-103 Cement Storage Distribution Dust
Collector 7.99E-07 1.06E-07 3.37E-09 2.28E-12 9.08E-07 3.89% bf200 Mill separator dust collector 9.58E-08 1.27E-08 4.04E-10 2.74E-13 1.09E-07 0.47% bf300 Mill sweep dust collector 8.33E-08 1.10E-08 3.51E-10 2.38E-13 9.46E-08 0.41% j162 General Dust Collector 1.03E-06 1.37E-07 4.36E-09 2.96E-12 1.17E-06 5.03% j165 East Packer Dust Collector 3.28E-08 4.35E-09 1.38E-10 9.39E-14 3.73E-08 0.16% j168 West Packer Dust Collector 3.17E-07 4.19E-08 1.33E-09 9.06E-13 3.60E-07 1.54% j174 Truck Silos Dust Collector 1.69E-06 2.24E-07 7.14E-09 4.85E-12 1.93E-06 8.25% j257 Truck Special Load Spout 3.72E-07 4.93E-08 1.57E-09 1.07E-12 4.23E-07 1.81% j321 West Rail Silo Dust Collector 2.75E-07 3.64E-08 1.16E-09 7.86E-13 3.12E-07 1.34% j345 East Rail Silo Dust Collector 2.94E-07 3.89E-08 1.24E-09 8.41E-13 3.34E-07 1.43% j350 Rail Silos Dust Collector 4.15E-07 5.50E-08 1.75E-09 1.19E-12 4.72E-07 2.02% j387 Truck Silo #4 Dust Collector 3.42E-08 4.52E-09 1.44E-10 9.77E-14 3.88E-08 0.17% j390 Truck Vacuum Dust Collector 7.20E-07 9.54E-08 3.04E-09 2.06E-12 8.19E-07 3.51% s260 Kiln/Raw Mill 3.01E-08 1.53E-08 6.83E-10 7.36E-09 5.35E-08 0.23% r100a Detroit Model V-71 489 Brake Horsepower Diesel
Engine 1.04E-07 0.00E+00 0.00E+00 0.00E+00 1.04E-07 0.45% m151
Caterpillar Model ZW3516-CAT, 2132 Brake
Horsepower Diesel Engine with Miratech Combikat
Diesel Particulate Filters

8.29E-10 0.00E+00 0.00E+00 0.00E+00 8.29E-10 0.00%
m152
Caterpillar Model ZW3516-CAT, 2132 Brake
Horsepower Diesel Engine with Miratech Combikat
Diesel Particulate Filters

7.60E-10 0.00E+00 0.00E+00 0.00E+00 7.60E-10 0.00%
m153
Caterpillar Model ZW3516-CAT, 2132 Brake
Horsepower Diesel Engine with Miratech Combikat
Diesel Particulate Filters

5.84E-10 0.00E+00 0.00E+00 0.00E+00 5.84E-10 0.00%
m154
Caterpillar Model ZW3516-CAT, 2132 Brake
Horsepower Diesel Engine with Miratech Combikat
Diesel Particulate Filters

8.08E-10 0.00E+00 0.00E+00 0.00E+00 8.08E-10 0.00%
m155
Caterpillar Model ZW3516-CAT, 2132 Brake
Horsepower Diesel Engine with Miratech Combikat
Diesel Particulate Filters

7.93E-10 0.00E+00 0.00E+00 0.00E+00 7.93E-10 0.00%
e1 Diesel Engine for Miller Big Blue 500 D Welder 1.03E-08 0.00E+00 0.00E+00 0.00E+00 1.03E-08 0.04% e2 Deutz Model F3L-912 Diesel Engine for Miller Big
Blue 400 D Welder 8.75E-09 0.00E+00 0.00E+00 0.00E+00 8.75E-09 0.04% 229
Table 9. PMI Cancer Risk by Source and Exposure Pathway CalPortland Company
Permit Number: 02‐VP‐07b
Receptor ID: 530
Location: 557254.9 UTM E 4509428.3 UTM N
Source ID Source Name Inhalation Soil Dermal Mother's Milk Total Contribution e4 Deutz Model F3L-912 Diesel Engine for Miller Big
Blue 400 D Welder 1.38E-07 0.00E+00 0.00E+00 0.00E+00 1.38E-07 0.59% e3 Diesel Engine for Miller Bobcat 250 Welder 4.02E-09 0.00E+00 0.00E+00 0.00E+00 4.02E-09 0.02% e5 Kubota Model D902-EF01e Diesel Engine for
Welder 3.77E-07 0.00E+00 0.00E+00 0.00E+00 3.77E-07 1.62% e6 Onan Model Performer P16 Gasoline Engine for
Lincoln Electric Ranger 8 K1418-1 Welder 2.89E-11 0.00E+00 0.00E+00 0.00E+00 2.89E-11 0.00% e7 Kohler Model CH12.5S for American IMC
Compressors 3G3HV Compressor 2.26E-11 0.00E+00 0.00E+00 0.00E+00 2.26E-11 0.00% e8 Gasoline Engine for Kohler Compressor 9.02E-11 0.00E+00 0.00E+00 0.00E+00 9.02E-11 0.00% e9 NAPA Air Compressor 9.05E-11 0.00E+00 0.00E+00 0.00E+00 9.05E-11 0.00% limeston Limestone Quarry Roads 1.19E-08 4.71E-09 1.88E-10 1.10E-12 1.68E-08 0.07% shalequa Shale Quarry Roads 8.62E-09 3.42E-09 1.37E-10 7.96E-13 1.22E-08 0.05% internal Plant Roads (Internal) 2.42E-07 4.49E-08 1.61E-09 7.78E-12 2.89E-07 1.24% external Plant Roads (External) 8.40E-07 1.56E-07 5.59E-09 2.69E-11 1.00E-06 4.29% a1 Quarry Limestone Storage Pile 9.12E-09 1.28E-08 4.98E-10 6.12E-13 2.24E-08 0.10% a2 Clinker North Storage Pile 1 5.87E-08 2.39E-08 8.08E-10 1.05E-12 8.34E-08 0.36% a3 Clinker Mid Storage Pile 5.72E-09 2.33E-09 7.88E-11 1.03E-13 8.13E-09 0.03% a4 Clinker South Storage Pile 1 7.90E-08 3.21E-08 1.09E-09 1.42E-12 1.12E-07 0.48% a5 Mill reject Storage Pile 1 1.39E-08 5.67E-09 1.92E-10 2.50E-13 1.98E-08 0.08% a8 Coal Storage Pile 4.63E-08 1.73E-08 5.71E-10 1.66E-12 6.42E-08 0.28% a9 Coke Storage Pile 1 4.52E-08 4.81E-09 1.23E-10 7.06E-13 5.01E-08 0.21% b51 Dyed Diesel Tank - 4200 gal 4.62E-12 0.00E+00 0.00E+00 0.00E+00 4.62E-12 0.00% b52 Gasoline Tank - 350 gal 7.80E-11 0.00E+00 0.00E+00 0.00E+00 7.80E-11 0.00% b54 Motor Oil Tank - 250 gal 3.71E-14 1.23E-13 1.09E-14 3.82E-14 2.09E-13 0.00% k41 Clear Diesel Tank - 1,000 gal 1.47E-11 0.00E+00 0.00E+00 0.00E+00 1.47E-11 0.00% k42 Gasoline Tank - 1,000 gal 9.35E-10 0.00E+00 0.00E+00 0.00E+00 9.35E-10 0.00% k46 Dyed Diesel Tank - 10,000 gal 2.18E-10 0.00E+00 0.00E+00 0.00E+00 2.18E-10 0.00% m143 Dyed Diesel Tank - 350 gal 7.91E-12 0.00E+00 0.00E+00 0.00E+00 7.91E-12 0.00% m142 Dyed Diesel Tank - 10,000 gal 1.70E-11 0.00E+00 0.00E+00 0.00E+00 1.70E-11 0.00% r279 Gasoline Tank - 225 gal 6.80E-11 0.00E+00 0.00E+00 0.00E+00 6.80E-11 0.00% 278dies Diesel Tank - 420 gal 1.81E-13 0.00E+00 0.00E+00 0.00E+00 1.81E-13 0.00% 279dies Diesel Tank - 420 gal 1.32E-13 0.00E+00 0.00E+00 0.00E+00 1.32E-13 0.00% fgtank1 Finish Grinding Tank 1 - 16,000 gal 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00% tank20 Diesel Tank - 550 gal 7.92E-12 0.00E+00 0.00E+00 0.00E+00 7.92E-12 0.00% lsb Limestone Quarry Blasting 8.29E-10 1.16E-09 4.53E-11 5.57E-14 2.04E-09 0.01% buldoz Shale Quarry Bulldozing 3.04E-09 4.16E-09 1.66E-10 1.85E-13 7.38E-09 0.03% scrap Shale Quarry Scraping 9.07E-09 1.24E-08 4.96E-10 5.52E-13 2.20E-08 0.09% lsd Limestone Quarry Drill 3.99E-09 5.59E-09 2.18E-10 2.68E-13 9.79E-09 0.04% truckpw Solvent Parts Washer - 55 gal 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00% m11 Limestone Loader to Dump Truck 4.86E-08 6.82E-08 2.66E-09 3.27E-12 1.19E-07 0.51% m16 Portable limestone crusher 1.62E-08 2.27E-08 8.85E-10 1.09E-12 3.98E-08 0.17% m17 Shale Loader to Shale Dump Truck 4.08E-11 5.57E-11 2.23E-12 2.48E-15 9.87E-11 0.00% m18 Shale Dump Truck to Shale Barn 9.26E-10 1.27E-09 5.06E-11 5.64E-14 2.24E-09 0.01% m19 Shale Barn to Hopper 5.25E-10 7.17E-10 2.87E-11 3.20E-14 1.27E-09 0.01% m110 Hopper to C-3 Apron Feeder 1.06E-09 1.45E-09 5.79E-11 6.44E-14 2.56E-09 0.01% m111 C-3 Apron Feeder to C-4 Vibrating Grizzly 1.07E-09 1.47E-09 5.87E-11 6.54E-14 2.60E-09 0.01% m112 C-4 Vibrating Grizzly to C-5 Shale Crusher or
Conveyor 1.08E-09 1.48E-09 5.91E-11 6.59E-14 2.62E-09 0.01% m21 Coal Railcar to Vibrator G-193/194 7.82E-10 2.93E-10 9.66E-12 2.81E-14 1.08E-09 0.00% m22 Vibrator G-193/194 to Conveyor Belt G-196 8.22E-10 3.08E-10 1.02E-11 2.96E-14 1.14E-09 0.00% m23 Conveyor Belt G-196 to Bucket Elevator G-198 8.69E-10 3.26E-10 1.07E-11 3.13E-14 1.21E-09 0.01% m24 Bucket Elevator G-198 to Belt Conveyor G-200 2.09E-10 7.85E-11 2.59E-12 7.53E-15 2.90E-10 0.00% m25 Weigh Feeder G-204 to Belt Conveyor G-453 9.43E-10 3.54E-10 1.16E-11 3.39E-14 1.31E-09 0.01% m26 Belt Conveyor G-453 to Feed Belt G-455 9.85E-10 3.70E-10 1.22E-11 3.55E-14 1.37E-09 0.01% m211 Emergecy Clinker Discharge to Dustless Chute 1.20E-06 4.88E-07 1.65E-08 2.15E-11 1.70E-06 7.30% m3 Gypsum Railcar to Drag Chain Conveyor D-31 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00% Total 1.97E-05 3.53E-06 1.21E-07 7.51E-09 2.33E-05 100.00% 230
Table 10. MEIR Cancer Risk by Substance and Exposure Pathway CalPortland Company
Permit Number: 02‐VP‐07b
Receptor ID: 26
Location: 557214.4 UTM E 4509122.3 UTM N
Chemical Name CAS Concentration
(ug/m3
) Inhalation Soil Dermal Mother's Milk Total Contribution Antimony 7440360 1.49E-06 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00% Arsenic 7440382 2.42E-05 1.80E-07 1.21E-06 4.92E-08 0.00E+00 1.44E-06 14.51% Barium 7440393 5.94E-04 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00% Beryllium 7440417 5.86E-07 3.05E-09 0.00E+00 0.00E+00 0.00E+00 3.05E-09 0.03% Cadmium 7440439 4.34E-06 4.03E-08 0.00E+00 0.00E+00 0.00E+00 4.03E-08 0.41% Chromium 7440473 8.73E-05 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00% Cobalt 7440484 3.39E-05 5.67E-07 0.00E+00 0.00E+00 0.00E+00 5.67E-07 5.72% Copper 7440508 1.10E-04 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00% Silica, Crystln 1175 1.45E-02 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00% Cr(VI) 18540299 2.15E-05 6.79E-06 3.46E-07 4.70E-09 0.00E+00 7.14E-06 72.01% Lead 7439921 1.68E-05 4.38E-10 4.94E-09 1.01E-10 5.89E-11 5.54E-09 0.06% Manganese 7439965 2.90E-03 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00% Mercury 7439976 5.25E-06 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00% Nickel 7440020 6.80E-04 3.83E-07 0.00E+00 0.00E+00 0.00E+00 3.83E-07 3.87% Selenium 7782492 6.63E-06 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00% Silver 7440224 4.54E-07 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00% Thallium 7440280 2.70E-06 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00% Vanadium 7440622 1.51E-03 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00% Zinc 7440666 7.84E-04 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00% Benzene 71432 1.49E-04 9.22E-09 0.00E+00 0.00E+00 0.00E+00 9.22E-09 0.09% B[g,h,i]perylen 191242 3.64E-08 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00% Chrysene 218019 3.27E-07 4.80E-12 1.33E-10 1.17E-11 4.15E-11 1.91E-10 0.00% Cumene 98828 2.37E-07 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00% Cyclohexane 110827 2.43E-06 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00% DEGlycol 111466 4.21E-06 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00% Ethyl Benzene 100414 4.32E-06 2.33E-11 0.00E+00 0.00E+00 0.00E+00 2.33E-11 0.00% Hexane 110543 2.01E-05 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00% 2,2,4TriMePentn 540841 1.09E-05 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00% Naphthalene 91203 9.38E-07 6.98E-11 0.00E+00 0.00E+00 0.00E+00 6.98E-11 0.00% Toluene 108883 4.17E-05 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00% 1,2,4TriMeBenze 95636 4.02E-05 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00% Xylenes 1330207 5.56E-05 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00% Methanol 67561 1.21E-03 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00% HCl 7647010 3.20E-03 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00% Acenaphthene 83329 6.11E-09 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00% Acenaphthylene 208968 1.41E-08 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00% Acetaldehyde 75070 1.95E-06 1.21E-11 0.00E+00 0.00E+00 0.00E+00 1.21E-11 0.00% Acrolein 107028 2.67E-07 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00% Anthracene 120127 7.08E-09 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00% B[a]anthracene 56553 6.67E-09 9.79E-13 1.09E-11 9.63E-13 6.75E-12 1.96E-11 0.00% B[a]P 50328 3.40E-09 5.00E-12 5.58E-11 4.92E-12 3.45E-11 1.00E-10 0.00% B[b]fluoranthen 205992 3.21E-09 4.71E-13 5.26E-12 4.64E-13 3.25E-12 9.44E-12 0.00% B[k]fluoranthen 207089 3.33E-09 4.89E-13 5.46E-12 4.82E-13 3.37E-12 9.80E-12 0.00% 1,3-Butadiene 106990 3.86E-07 1.44E-10 0.00E+00 0.00E+00 0.00E+00 1.44E-10 0.00% D[a,h]anthracen 53703 4.27E-09 6.59E-12 2.39E-11 2.11E-12 1.48E-11 4.73E-11 0.00% Fluoranthene 206440 1.98E-08 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00% Fluorene 86737 6.84E-08 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00% Formaldehyde 50000 3.09E-04 4.02E-09 0.00E+00 0.00E+00 0.00E+00 4.02E-09 0.04% In[1,2,3-cd]pyr 193395 3.81E-09 5.60E-13 6.25E-12 5.51E-13 3.86E-12 1.12E-11 0.00% Phenanthrene 85018 8.00E-08 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00% Pyrene 129000 1.35E-08 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00% Aluminum 7429905 1.45E-04 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00% Phosphorus 7723140 1.34E-05 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00% NH3 7664417 1.14E-03 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00% 2MeNaphthalene 91576 1.38E-08 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00% B[e]pyrene 192972 2.99E-09 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00% Perylene 198550 2.99E-09 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00% Dioxins-w/ 1085 2.69E-11 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00% DiBenFurans(Cl) 1080 2.90E-11 1.42E-09 2.34E-08 1.11E-09 1.36E-08 3.95E-08 0.40% DieselExhPM 9901 4.16E-04 2.84E-07 0.00E+00 0.00E+00 0.00E+00 2.84E-07 2.86% Chlorine 7782505 1.49E-07 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00% MEK 78933 2.18E-08 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00% Me t-ButylEther 1634044 6.74E-07 7.52E-13 0.00E+00 0.00E+00 0.00E+00 7.52E-13 0.00% Styrene 100425 4.71E-08 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00% Total 8.26E-06 1.58E-06 5.52E-08 1.37E-08 9.92E-06 100.00% 231
Table 11. MEIR Cancer Risk by Source and Exposure Pathway CalPortland Company
Permit Number: 02‐VP‐07b
Receptor ID: 26
Location: 557214.4 UTM E 4509122.3 UTM N
Source ID Source Name Inhalation Soil Dermal Mother's Milk Total Contribution r115 R-115 Drill Dust Collector (Insignificant) 5.47E-10 2.06E-10 9.12E-12 1.38E-11 7.75E-10 0.01% b13 Raise Shaft Sly Dust Collector 2.02E-09 1.13E-09 4.42E-11 5.56E-14 3.20E-09 0.03% b25 Limestone Belt Transfer Sly Dust Collector 4.23E-09 2.37E-09 9.24E-11 1.16E-13 6.69E-09 0.07% c34 Secondary Crusher BHA Model 505-4220 Dust
Collector 9.88E-08 5.54E-08 2.16E-09 2.72E-12 1.56E-07 1.58% c36 Shale Crusher Sly Dust Collector 1.38E-08 7.52E-09 3.00E-10 3.43E-13 2.17E-08 0.22% c38 Transfer Building Sly Dust Collector 2.78E-08 1.68E-08 6.60E-10 5.20E-13 4.53E-08 0.46% c160 C-164 Belt Dust Collector (Insignificant) 9.56E-08 5.76E-08 2.26E-09 1.79E-12 1.55E-07 1.57% c172 Raw Mix Tanks Dust Collector 2.93E-08 1.77E-08 6.95E-10 5.48E-13 4.77E-08 0.48% f173 Blending Silos Dust Collector 8.92E-08 5.38E-08 2.11E-09 1.67E-12 1.45E-07 1.47% f184 Raw Storage Silo Dust Collector 4.88E-08 2.94E-08 1.16E-09 9.11E-13 7.93E-08 0.80% f350 Pre-Heater Kiln Feed Bin Dust Collector 7.21E-08 4.35E-08 1.71E-09 1.35E-12 1.17E-07 1.18% g206 Coal Silo Dust Collector 1.62E-07 8.27E-09 3.04E-10 3.21E-13 1.71E-07 1.73% g4181 Clinker Handling Dust Collector 5.39E-07 8.78E-08 2.97E-09 3.96E-12 6.30E-07 6.36% g425 Deep Bucket Conveyor Dust Collector 7.26E-08 1.18E-08 4.00E-10 5.33E-13 8.48E-08 0.86% g465 Indirect Coal Firing System Dust Collector 3.52E-07 1.79E-08 6.59E-10 6.94E-13 3.70E-07 3.74% s210 Roller Mill Rock Feeders Dust Collector 2.33E-07 3.09E-08 9.83E-10 6.67E-13 2.65E-07 2.68% s253 Bucket (meal) Elevator Dust Collector 7.23E-08 4.36E-08 1.71E-09 1.35E-12 1.18E-07 1.19% g451 Portable Silo 250 WAM Dust Collector 2.42E-08 1.23E-09 4.60E-11 1.63E-14 2.55E-08 0.26% d341 Gypsum Elevator Dust Collector 8.03E-09 1.91E-09 6.89E-11 3.71E-14 1.00E-08 0.10% d1222 Synthetic Gypsum Loading Dust Collector #1 6.49E-09 1.54E-09 5.57E-11 3.00E-14 8.09E-09 0.08% d1241 Synthetic Gypsum Loading Dust Collector #2 8.13E-09 1.93E-09 6.97E-11 3.76E-14 1.01E-08 0.10% bf046 D-46 Clinker Bin Discharge Dust Collector 2.96E-07 3.92E-08 1.25E-09 8.48E-13 3.37E-07 3.40% bf05 D-5 Clinker Bin Discharge Dust Collector 2.86E-07 3.79E-08 1.21E-09 8.18E-13 3.25E-07 3.28% bf042 D-42 Limestone Bin Discharge Dust Collector 2.80E-07 3.71E-08 1.18E-09 8.01E-13 3.18E-07 3.21% bf101 FM Tower #1 Dust Collector 2.14E-07 2.83E-08 9.02E-10 6.12E-13 2.43E-07 2.46% bf102 FM Tower #2 Dust Collector 2.15E-07 2.84E-08 9.06E-10 6.15E-13 2.44E-07 2.47% bf103 FM Tower #3 Dust Collector 2.06E-07 2.73E-08 8.68E-10 5.89E-13 2.34E-07 2.36% bf104 FM-BC-104 Transfer Dust Collector 1.16E-07 1.53E-08 4.88E-10 3.31E-13 1.32E-07 1.33% bf105 FM-BM-101 Mill Inlet Dust Collector 1.15E-07 1.53E-08 4.87E-10 3.30E-13 1.31E-07 1.33% bf106 FM-BM-101 Mill Discharge Dust Collector 4.17E-07 5.52E-08 1.76E-09 1.19E-12 4.74E-07 4.79% bf107 FM-CQ-101 Cement Cooler Transport Dust
Collector 2.25E-07 2.98E-08 9.49E-10 6.44E-13 2.56E-07 2.58% bf108 FM-BE-103 Cement Storage Distribution Dust
Collector 3.46E-07 4.58E-08 1.46E-09 9.89E-13 3.93E-07 3.97% bf200 Mill separator dust collector 3.32E-07 4.40E-08 1.40E-09 9.50E-13 3.77E-07 3.81% bf300 Mill sweep dust collector 2.14E-07 2.83E-08 9.01E-10 6.11E-13 2.43E-07 2.45% j162 General Dust Collector 4.69E-07 6.20E-08 1.98E-09 1.34E-12 5.33E-07 5.38% j165 East Packer Dust Collector 1.02E-08 1.35E-09 4.31E-11 2.93E-14 1.16E-08 0.12% j168 West Packer Dust Collector 9.67E-08 1.28E-08 4.08E-10 2.77E-13 1.10E-07 1.11% j174 Truck Silos Dust Collector 5.57E-07 7.38E-08 2.35E-09 1.59E-12 6.33E-07 6.39% j257 Truck Special Load Spout 1.08E-07 1.43E-08 4.56E-10 3.09E-13 1.23E-07 1.24% j321 West Rail Silo Dust Collector 8.86E-08 1.17E-08 3.73E-10 2.53E-13 1.01E-07 1.02% j345 East Rail Silo Dust Collector 9.13E-08 1.21E-08 3.85E-10 2.61E-13 1.04E-07 1.05% j350 Rail Silos Dust Collector 1.37E-07 1.82E-08 5.78E-10 3.92E-13 1.56E-07 1.57% j387 Truck Silo #4 Dust Collector 1.09E-08 1.45E-09 4.61E-11 3.13E-14 1.24E-08 0.13% j390 Truck Vacuum Dust Collector 2.33E-07 3.08E-08 9.81E-10 6.66E-13 2.64E-07 2.67% s260 Kiln/Raw Mill 5.57E-08 2.84E-08 1.26E-09 1.36E-08 9.89E-08 1.00% r100a Detroit Model V-71 489 Brake Horsepower Diesel
Engine 4.61E-08 0.00E+00 0.00E+00 0.00E+00 4.61E-08 0.47% m151
Caterpillar Model ZW3516-CAT, 2132 Brake
Horsepower Diesel Engine with Miratech Combikat
Diesel Particulate Filters

3.66E-10 0.00E+00 0.00E+00 0.00E+00 3.66E-10 0.00%
m152
Caterpillar Model ZW3516-CAT, 2132 Brake
Horsepower Diesel Engine with Miratech Combikat
Diesel Particulate Filters

3.37E-10 0.00E+00 0.00E+00 0.00E+00 3.37E-10 0.00%
m153
Caterpillar Model ZW3516-CAT, 2132 Brake
Horsepower Diesel Engine with Miratech Combikat
Diesel Particulate Filters

2.68E-10 0.00E+00 0.00E+00 0.00E+00 2.68E-10 0.00%
m154
Caterpillar Model ZW3516-CAT, 2132 Brake
Horsepower Diesel Engine with Miratech Combikat
Diesel Particulate Filters

3.67E-10 0.00E+00 0.00E+00 0.00E+00 3.67E-10 0.00%
m155
Caterpillar Model ZW3516-CAT, 2132 Brake
Horsepower Diesel Engine with Miratech Combikat
Diesel Particulate Filters

3.57E-10 0.00E+00 0.00E+00 0.00E+00 3.57E-10 0.00%
e1 Diesel Engine for Miller Big Blue 500 D Welder 9.49E-09 0.00E+00 0.00E+00 0.00E+00 9.49E-09 0.10% e2 Deutz Model F3L-912 Diesel Engine for Miller Big
Blue 400 D Welder 8.05E-09 0.00E+00 0.00E+00 0.00E+00 8.05E-09 0.08% 232
Table 11. MEIR Cancer Risk by Source and Exposure Pathway CalPortland Company
Permit Number: 02‐VP‐07b
Receptor ID: 26
Location: 557214.4 UTM E 4509122.3 UTM N
Source ID Source Name Inhalation Soil Dermal Mother's Milk Total Contribution e4 Deutz Model F3L-912 Diesel Engine for Miller Big
Blue 400 D Welder 8.78E-08 0.00E+00 0.00E+00 0.00E+00 8.78E-08 0.89% e3 Diesel Engine for Miller Bobcat 250 Welder 3.69E-09 0.00E+00 0.00E+00 0.00E+00 3.69E-09 0.04% e5 Kubota Model D902-EF01e Diesel Engine for
Welder 1.27E-07 0.00E+00 0.00E+00 0.00E+00 1.27E-07 1.28% e6 Onan Model Performer P16 Gasoline Engine for
Lincoln Electric Ranger 8 K1418-1 Welder 2.66E-11 0.00E+00 0.00E+00 0.00E+00 2.66E-11 0.00% e7 Kohler Model CH12.5S for American IMC
Compressors 3G3HV Compressor 2.08E-11 0.00E+00 0.00E+00 0.00E+00 2.08E-11 0.00% e8 Gasoline Engine for Kohler Compressor 8.29E-11 0.00E+00 0.00E+00 0.00E+00 8.29E-11 0.00% e9 NAPA Air Compressor 8.31E-11 0.00E+00 0.00E+00 0.00E+00 8.31E-11 0.00% limeston Limestone Quarry Roads 1.13E-08 4.50E-09 1.80E-10 1.05E-12 1.60E-08 0.16% shalequa Shale Quarry Roads 1.19E-08 4.74E-09 1.89E-10 1.10E-12 1.69E-08 0.17% internal Plant Roads (Internal) 8.01E-08 1.49E-08 5.34E-10 2.58E-12 9.56E-08 0.96% external Plant Roads (External) 1.65E-07 3.06E-08 1.10E-09 5.29E-12 1.97E-07 1.99% a1 Quarry Limestone Storage Pile 7.16E-09 1.00E-08 3.91E-10 4.81E-13 1.76E-08 0.18% a2 Clinker North Storage Pile 1 3.06E-08 1.25E-08 4.22E-10 5.49E-13 4.35E-08 0.44% a3 Clinker Mid Storage Pile 2.66E-09 1.08E-09 3.67E-11 4.77E-14 3.78E-09 0.04% a4 Clinker South Storage Pile 1 2.52E-08 1.02E-08 3.46E-10 4.51E-13 3.58E-08 0.36% a5 Mill reject Storage Pile 1 9.12E-09 3.71E-09 1.26E-10 1.64E-13 1.30E-08 0.13% a8 Coal Storage Pile 2.33E-08 8.71E-09 2.87E-10 8.36E-13 3.22E-08 0.33% a9 Coke Storage Pile 1 2.65E-08 2.82E-09 7.22E-11 4.13E-13 2.93E-08 0.30% b51 Dyed Diesel Tank - 4200 gal 4.16E-12 0.00E+00 0.00E+00 0.00E+00 4.16E-12 0.00% b52 Gasoline Tank - 350 gal 7.02E-11 0.00E+00 0.00E+00 0.00E+00 7.02E-11 0.00% b54 Motor Oil Tank - 250 gal 3.34E-14 1.11E-13 9.75E-15 3.43E-14 1.88E-13 0.00% k41 Clear Diesel Tank - 1,000 gal 5.60E-12 0.00E+00 0.00E+00 0.00E+00 5.60E-12 0.00% k42 Gasoline Tank - 1,000 gal 3.53E-10 0.00E+00 0.00E+00 0.00E+00 3.53E-10 0.00% k46 Dyed Diesel Tank - 10,000 gal 8.35E-11 0.00E+00 0.00E+00 0.00E+00 8.35E-11 0.00% m143 Dyed Diesel Tank - 350 gal 2.82E-12 0.00E+00 0.00E+00 0.00E+00 2.82E-12 0.00% m142 Dyed Diesel Tank - 10,000 gal 6.19E-12 0.00E+00 0.00E+00 0.00E+00 6.19E-12 0.00% r279 Gasoline Tank - 225 gal 5.92E-11 0.00E+00 0.00E+00 0.00E+00 5.92E-11 0.00% 278dies Diesel Tank - 420 gal 1.60E-13 0.00E+00 0.00E+00 0.00E+00 1.60E-13 0.00% 279dies Diesel Tank - 420 gal 1.16E-13 0.00E+00 0.00E+00 0.00E+00 1.16E-13 0.00% fgtank1 Finish Grinding Tank 1 - 16,000 gal 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00% tank20 Diesel Tank - 550 gal 4.16E-12 0.00E+00 0.00E+00 0.00E+00 4.16E-12 0.00% lsb Limestone Quarry Blasting 8.04E-10 1.13E-09 4.39E-11 5.40E-14 1.97E-09 0.02% buldoz Shale Quarry Bulldozing 3.62E-09 4.95E-09 1.98E-10 2.21E-13 8.77E-09 0.09% scrap Shale Quarry Scraping 1.11E-08 1.52E-08 6.07E-10 6.76E-13 2.69E-08 0.27% lsd Limestone Quarry Drill 3.94E-09 5.53E-09 2.15E-10 2.65E-13 9.68E-09 0.10% truckpw Solvent Parts Washer - 55 gal 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00% m11 Limestone Loader to Dump Truck 4.41E-08 6.19E-08 2.41E-09 2.96E-12 1.08E-07 1.09% m16 Portable limestone crusher 1.45E-08 2.03E-08 7.92E-10 9.73E-13 3.56E-08 0.36% m17 Shale Loader to Shale Dump Truck 3.70E-11 5.06E-11 2.02E-12 2.25E-15 8.96E-11 0.00% m18 Shale Dump Truck to Shale Barn 4.88E-10 6.67E-10 2.67E-11 2.97E-14 1.18E-09 0.01% m19 Shale Barn to Hopper 2.57E-10 3.51E-10 1.40E-11 1.57E-14 6.22E-10 0.01% m110 Hopper to C-3 Apron Feeder 5.14E-10 7.04E-10 2.81E-11 3.13E-14 1.25E-09 0.01% m111 C-3 Apron Feeder to C-4 Vibrating Grizzly 5.19E-10 7.10E-10 2.84E-11 3.16E-14 1.26E-09 0.01% m112 C-4 Vibrating Grizzly to C-5 Shale Crusher or
Conveyor 5.22E-10 7.13E-10 2.85E-11 3.18E-14 1.26E-09 0.01% m21 Coal Railcar to Vibrator G-193/194 3.75E-10 1.41E-10 4.64E-12 1.35E-14 5.21E-10 0.01% m22 Vibrator G-193/194 to Conveyor Belt G-196 3.74E-10 1.40E-10 4.63E-12 1.35E-14 5.20E-10 0.01% m23 Conveyor Belt G-196 to Bucket Elevator G-198 3.71E-10 1.39E-10 4.59E-12 1.34E-14 5.15E-10 0.01% m24 Bucket Elevator G-198 to Belt Conveyor G-200 1.52E-10 5.70E-11 1.88E-12 5.47E-15 2.11E-10 0.00% m25 Weigh Feeder G-204 to Belt Conveyor G-453 3.26E-10 1.22E-10 4.03E-12 1.18E-14 4.53E-10 0.00% m26 Belt Conveyor G-453 to Feed Belt G-455 3.27E-10 1.23E-10 4.04E-12 1.18E-14 4.53E-10 0.00% m211 Emergecy Clinker Discharge to Dustless Chute 4.18E-07 1.70E-07 5.76E-09 7.50E-12 5.94E-07 6.00% m3 Gypsum Railcar to Drag Chain Conveyor D-31 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00% Total 8.26E-06 1.58E-06 5.49E-08 1.37E-08 9.90E-06 100% 233
Table 12. MEIW Cancer Risk by Substance and Exposure Pathway CalPortland Company
Permit Number: 02‐VP‐07b
Receptor ID: 26
Location: 557214.4 UTM E 4509122.3 UTM N
Chemical Name CAS Concentration
(ug/m3) Inhalation Soil Dermal Total Contribution
Antimony 7440360 1.49E-06 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00% Arsenic 7440382 2.42E-05 1.21E-08 5.10E-08 2.04E-08 8.35E-08 10.01% Barium 7440393 5.94E-04 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00% Beryllium 7440417 5.86E-07 2.77E-10 0.00E+00 0.00E+00 2.77E-10 0.03% Cadmium 7440439 4.34E-06 3.66E-09 0.00E+00 0.00E+00 3.66E-09 0.44% Chromium 7440473 8.73E-05 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00% Cobalt 7440484 3.39E-05 5.15E-08 0.00E+00 0.00E+00 5.15E-08 6.17% Copper 7440508 1.10E-04 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00% Silica, Crystln 1175 1.45E-02 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00% Cr(VI) 18540299 2.15E-05 6.16E-07 1.46E-08 1.01E-09 6.32E-07 75.72% Lead 7439921 1.68E-05 3.83E-11 2.08E-10 2.72E-11 2.74E-10 0.03% Manganese 7439965 2.90E-03 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00% Mercury 7439976 5.25E-06 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00% Nickel 7440020 6.80E-04 3.48E-08 0.00E+00 0.00E+00 3.48E-08 4.17% Selenium 7782492 6.63E-06 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00% Silver 7440224 4.54E-07 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00% Thallium 7440280 2.70E-06 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00% Vanadium 7440622 1.51E-03 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00% Zinc 7440666 7.84E-04 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00% Benzene 71432 1.49E-04 8.37E-10 0.00E+00 0.00E+00 8.37E-10 0.10% B[g,h,i]perylen 191242 3.64E-08 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00% Chrysene 218019 3.27E-07 5.30E-13 5.61E-12 4.86E-12 1.10E-11 0.00% Cumene 98828 2.37E-07 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00% Cyclohexane 110827 2.43E-06 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00% DEGlycol 111466 4.21E-06 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00% Ethyl Benzene 100414 4.32E-06 2.11E-12 0.00E+00 0.00E+00 2.11E-12 0.00% Hexane 110543 2.01E-05 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00% 2,2,4TriMePentn 540841 1.09E-05 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00% Naphthalene 91203 9.38E-07 6.34E-12 0.00E+00 0.00E+00 6.34E-12 0.00% Toluene 108883 4.17E-05 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00% 1,2,4TriMeBenze 95636 4.02E-05 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00% Xylenes 1330207 5.56E-05 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00% Methanol 67561 1.21E-03 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00% HCl 7647010 3.20E-03 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00% Acenaphthene 83329 6.11E-09 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00% Acenaphthylene 208968 1.41E-08 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00% Acetaldehyde 75070 1.95E-06 1.10E-12 0.00E+00 0.00E+00 1.10E-12 0.00% Acrolein 107028 2.67E-07 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00% Anthracene 120127 7.08E-09 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00% B[a]anthracene 56553 6.67E-09 1.08E-13 4.61E-13 3.99E-13 9.68E-13 0.00% B[a]P 50328 3.40E-09 5.52E-13 2.35E-12 2.04E-12 4.95E-12 0.00% B[b]fluoranthen 205992 3.21E-09 5.21E-14 2.22E-13 1.92E-13 4.66E-13 0.00% B[k]fluoranthen 207089 3.33E-09 5.41E-14 2.30E-13 2.00E-13 4.84E-13 0.00% 1,3-Butadiene 106990 3.86E-07 1.30E-11 0.00E+00 0.00E+00 1.30E-11 0.00% D[a,h]anthracen 53703 4.27E-09 9.85E-13 1.01E-12 4.54E-13 2.45E-12 0.00% Fluoranthene 206440 1.98E-08 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00% Fluorene 86737 6.84E-08 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00% Formaldehyde 50000 3.09E-04 3.65E-10 0.00E+00 0.00E+00 3.65E-10 0.04% In[1,2,3-cd]pyr 193395 3.81E-09 6.19E-14 2.64E-13 2.28E-13 5.54E-13 0.00% Phenanthrene 85018 8.00E-08 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00% Pyrene 129000 1.35E-08 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00% Aluminum 7429905 1.45E-04 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00% Phosphorus 7723140 1.34E-05 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00% NH3 7664417 1.14E-03 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00% 2MeNaphthalene 91576 1.38E-08 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00% B[e]pyrene 192972 2.99E-09 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00% Perylene 198550 2.99E-09 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00% Dioxins-w/ 1085 2.69E-11 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00% DiBenFurans(Cl) 1080 2.90E-11 1.57E-10 9.89E-10 4.60E-10 1.61E-09 0.19% DieselExhPM 9901 4.16E-04 2.58E-08 0.00E+00 0.00E+00 2.58E-08 3.09% Chlorine 7782505 1.49E-07 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00% 234
Table 12. MEIW Cancer Risk by Substance and Exposure Pathway CalPortland Company
Permit Number: 02‐VP‐07b
Receptor ID: 26
Location: 557214.4 UTM E 4509122.3 UTM N
Chemical Name CAS Concentration
(ug/m3) Inhalation Soil Dermal Total Contribution
MEK 78933 2.18E-08 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00% Me t-ButylEther 1634044 6.74E-07 6.83E-14 0.00E+00 0.00E+00 6.83E-14 0.00% Styrene 100425 4.71E-08 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00% Total 7.46E-07 6.68E-08 2.19E-08 8.35E-07 100.00%
235
Table 13. MEIW Cancer Risk by Source and Exposure Pathway CalPortland Company
Permit Number: 02‐VP‐07b
Receptor ID: 26
Location: 557214.4 UTM E 4509122.3 UTM N
Source ID Source Name Inhalation Soil Dermal Total Contribution r115 R-115 Drill Dust Collector (Insignificant) 4.91E-11 8.69E-12 3.62E-12 6.14E-11 0.01% b13 Raise Shaft Sly Dust Collector 1.79E-10 4.79E-11 1.81E-11 2.45E-10 0.03% b25 Limestone Belt Transfer Sly Dust Collector 3.75E-10 1.00E-10 3.79E-11 5.13E-10 0.06% c34 Secondary Crusher BHA Model 505-4220 Dust
Collector 8.76E-09 2.34E-09 8.86E-10 1.20E-08 1.44%
c36 Shale Crusher Sly Dust Collector 1.23E-09 3.17E-10 1.24E-10 1.67E-09 0.20% c38 Transfer Building Sly Dust Collector 2.46E-09 7.08E-10 2.71E-10 3.44E-09 0.41% c160 C-164 Belt Dust Collector (Insignificant) 8.45E-09 2.43E-09 9.30E-10 1.18E-08 1.42% c172 Raw Mix Tanks Dust Collector 2.60E-09 7.46E-10 2.86E-10 3.63E-09 0.44% f173 Blending Silos Dust Collector 7.89E-09 2.27E-09 8.68E-10 1.10E-08 1.32% f184 Raw Storage Silo Dust Collector 4.31E-09 1.24E-09 4.75E-10 6.03E-09 0.72% f350 Pre-Heater Kiln Feed Bin Dust Collector 6.38E-09 1.83E-09 7.02E-10 8.92E-09 1.07% g206 Coal Silo Dust Collector 1.47E-08 3.49E-10 1.23E-10 1.52E-08 1.82% g4181 Clinker Handling Dust Collector 4.87E-08 3.70E-09 1.17E-09 5.35E-08 6.42% g425 Deep Bucket Conveyor Dust Collector 6.55E-09 4.99E-10 1.57E-10 7.21E-09 0.86% g465 Indirect Coal Firing System Dust Collector 3.19E-08 7.55E-10 2.66E-10 3.29E-08 3.95% s210 Roller Mill Rock Feeders Dust Collector 2.11E-08 1.30E-09 3.80E-10 2.28E-08 2.73% s253 Bucket (meal) Elevator Dust Collector 6.39E-09 1.84E-09 7.04E-10 8.94E-09 1.07% g451 Portable Silo 250 WAM Dust Collector 2.19E-09 5.19E-11 1.87E-11 2.26E-09 0.27% d341 Gypsum Elevator Dust Collector 7.23E-10 8.06E-11 2.76E-11 8.31E-10 0.10% d1222 Synthetic Gypsum Loading Dust Collector #1 5.84E-10 6.51E-11 2.24E-11 6.72E-10 0.08% d1241 Synthetic Gypsum Loading Dust Collector #2 7.31E-10 8.15E-11 2.80E-11 8.41E-10 0.10% bf046 D-46 Clinker Bin Discharge Dust Collector 2.68E-08 1.66E-09 4.83E-10 2.89E-08 3.47% bf05 D-5 Clinker Bin Discharge Dust Collector 2.58E-08 1.60E-09 4.66E-10 2.79E-08 3.35% bf042 D-42 Limestone Bin Discharge Dust Collector 2.53E-08 1.57E-09 4.57E-10 2.73E-08 3.28% bf101 FM Tower #1 Dust Collector 1.93E-08 1.20E-09 3.49E-10 2.09E-08 2.51% bf102 FM Tower #2 Dust Collector 1.94E-08 1.20E-09 3.50E-10 2.10E-08 2.52% bf103 FM Tower #3 Dust Collector 1.86E-08 1.15E-09 3.36E-10 2.01E-08 2.41% bf104 FM-BC-104 Transfer Dust Collector 1.05E-08 6.47E-10 1.89E-10 1.13E-08 1.36% bf105 FM-BM-101 Mill Inlet Dust Collector 1.04E-08 6.45E-10 1.88E-10 1.13E-08 1.35% bf106 FM-BM-101 Mill Discharge Dust Collector 3.77E-08 2.33E-09 6.80E-10 4.07E-08 4.88% bf107 FM-CQ-101 Cement Cooler Transport Dust Collector 2.04E-08 1.26E-09 3.67E-10 2.20E-08 2.64% bf108 FM-BE-103 Cement Storage Distribution Dust
Collector 3.12E-08 1.93E-09 5.63E-10 3.37E-08 4.05%
bf200 Mill separator dust collector 3.00E-08 1.86E-09 5.41E-10 3.24E-08 3.89% bf300 Mill sweep dust collector 1.93E-08 1.19E-09 3.48E-10 2.09E-08 2.50% j162 General Dust Collector 4.24E-08 2.62E-09 7.64E-10 4.57E-08 5.49% j165 East Packer Dust Collector 9.24E-10 5.71E-11 1.67E-11 9.98E-10 0.12% j168 West Packer Dust Collector 8.75E-09 5.41E-10 1.58E-10 9.44E-09 1.13% j174 Truck Silos Dust Collector 5.04E-08 3.11E-09 9.08E-10 5.44E-08 6.52% j257 Truck Special Load Spout 9.78E-09 6.04E-10 1.76E-10 1.06E-08 1.27% j321 West Rail Silo Dust Collector 8.01E-09 4.95E-10 1.44E-10 8.65E-09 1.04% j345 East Rail Silo Dust Collector 8.25E-09 5.10E-10 1.49E-10 8.91E-09 1.07% j350 Rail Silos Dust Collector 1.24E-08 7.66E-10 2.23E-10 1.34E-08 1.61% j387 Truck Silo #4 Dust Collector 9.89E-10 6.11E-11 1.78E-11 1.07E-09 0.13% j390 Truck Vacuum Dust Collector 2.10E-08 1.30E-09 3.79E-10 2.27E-08 2.72% s260 Kiln/Raw Mill 5.07E-09 1.20E-09 5.19E-10 6.79E-09 0.81% r100a Detroit Model V-71 489 Brake Horsepower Diesel
Engine 4.18E-09 0.00E+00 0.00E+00 4.18E-09 0.50%
m151
Caterpillar Model ZW3516-CAT, 2132 Brake
Horsepower Diesel Engine with Miratech Combikat
Diesel Particulate Filters

Shasta Lake City CouncilJune 16, 2026

Shasta Lake City Council
June 16, 2026