Ukiah City Council
August 3, 2022

City Council
Regular Meeting
AGENDA
(to be held both at the physical and virtual locations below) Civic Center Council Chamber ♦ 300 Seminary Avenue ♦ Ukiah, CA 95482 To participate or view the virtual meeting, go to the following link: https://zoom.us/j/97199426600 Or you can call in using your telephone only:
 Call (toll free) 1-888-788-0099
 Enter the Access Code: 971 9942 6600
 To Raise Hand enter *9
 To Speak after being recognized: enter *6 to unmute yourself Or One tap mobile (for easy connection on smart phones):

US: +16699009128,,97199426600# or +12532158782,,97199426600# Alternatively, you may view the meeting (without participating) by clicking on the name of the meeting at www.cityofukiah.com/meetings.

August 3, 2022 - 6:00 PM

1. ROLL CALL

2. PLEDGE OF ALLEGIANCE

3. PROCLAMATIONS/INTRODUCTIONS/PRESENTATIONS

4. PETITIONS AND COMMUNICATIONS

5. APPROVAL OF MINUTES

5.a. Approval of the Minutes for the July 20, 2022, Regular Meeting.

Recommended Action: Approve the minutes for the July 20, 2022, regular meeting.

Attachments:

1. 2022-07-20 Draft Minutes

6. RIGHT TO APPEAL DECISION
Persons who are dissatisfied with a decision of the City Council may have the right to a review of that decision by a court. The City has adopted Section 1094.6 of the California Code of Civil Procedure, which generally limits to ninety days (90) the time within which the decision of the City Boards and Agencies may be judicially challenged.

7. CONSENT CALENDAR
The following items listed are considered routine and will be enacted by a single motion and roll call vote by the City Council.

Items may be removed from the Consent Calendar upon request of a Councilmember or a citizen in which event the item will be considered at the completion of all other items on the agenda. The motion by the City Council on the Consent Calendar will approve and make findings in accordance with Administrative Staff and/or Planning Commission recommendations.

7.a. Report to Council for Preliminary and Conceptual Trail Planning and Mapping Provided by Rock Solid Trail Contracting in an Amount not to Exceed $15,096.

Recommended Action: Receive notification of contract expenditure with Rock Solid Trail Contracting for trail concept plan and mapping in an amount not to exceed $15,096.

Attachments:

1. RS Proposal

2. Contract

7.b. Award a Contract for Specification #E39169 - Street Striping 2022, to Chrisp Company of Freemont, California, in the Amount of $44,555.96 for Street Striping 2022.

Recommended Action: Award Contract to Chrisp Company in the amount of $44,555.96.

Attachments:

1. RFB - Specification E39169

2. Bid Tab

3. Chrisp Company Bid

7.c. Adoption of Resolution Appointing Kali Gordon to the Design Review Board.

Recommended Action: Adopt resolution appointing Kali Gordon to the ‘Community at Large’ position on the Design Review Board, term ending August 3, 2026.

Attachments:

1. City Code Section 1161

2. Resolution 2021-52

3. Application - Kali Gordon

4. Proposed Resolution

7.d. Report to Council Regarding the 2022 Conflict of Interest Code Biennial Notice, and Direct the City Clerk to Amend the Conflict of Interest Code per Guidelines Provided by the Fair Political Practices Commission (FPPC), Conduct a 45-day Public Notice Period, and If Necessary, Schedule a Public Hearing to Consider Adoption of the Amended Conflict of Interest Code.

Recommended Action: Receive the 2022 Conflict of Interest Code Biennial Notice and direct City Clerk to amend the Conflict of Interest Code per the FPPC guidelines, seek review from the City Attorney, provide a 45-day public comment period for the suggested modifications, and if necessary, schedule a public hearing to consider adoption of the amended Conflict of Interest Code.

Attachments:

1. 2022 Local Agency Biennial Notice

7.e. Approval of Contract with Stone Creek Environmental Consulting in the Amount of $33,000 for Engineering Services Related to the Municipal Separate Storm Sewer Systems Permit Issued by North Coast Regional Water Quality Control Board.

Recommended Action: Award professional services agreement to Stone Creek Environmental Consulting in the amount of $33,000 for Engineering Services related to the City’s Stormwater Permit.

Attachments:

1. 220430 Ukiah Proposal for 2022 2023

7.f. Report of an Agreement with Environmental Services Associates for Further Soil Sampling as Required to Fulfill CEQA Documents for the Riverside Park Regeneration Project.

Recommended Action: Receive a report regarding an agreement with Environmental Services Associates for soil sampling as required to fulfill CEQA documents for the Riverside Park Regeneration Project.

Attachments:

1. Soil Sampling Report

2. Amendment 1 - C#2122-203 - ESA Riverside Park Soil Sampling_ESA signed

3. SoilSamplingReport-BothEventsAsAttachmnet 3

7.g. Adoption of an Ordinance Amending Various Sections of Ukiah City Code to Streamline the Use Permit Application Process and Operational Standards for Cannabis-Related Businesses.

Recommended Action: Adopt the Ordinance of the City Council of the City of Ukiah amending various sections of the Ukiah City Code to streamline the use permit application process and operational standards for cannabis-related businesses.

Attachments:

1. Cannabis Ordinance Amendment Introduced

7.h. Consideration of Award of Bid for the Clara Avenue Reconstruction Project, Specification No. 20-08, and Approval of Corresponding Budget Amendment.

Recommended Action: Award bid for the Clara Avenue Reconstruction Project Specification No. 20-08, and approve corresponding budget amendment.

Attachments:

1. June 29, 2022 Staff Report

2. 7h Addendum to Staff Report

8. AUDIENCE COMMENTS ON NON-AGENDA ITEMS
The City Council welcomes input from the audience. If there is a matter of business on the agenda that you are interested in, you may address the Council when this matter is considered. If you wish to speak on a matter that is not on this agenda, you may do so at this time. In order for everyone to be heard, please limit your comments to three (3) minutes per person and not more than ten (10) minutes per subject. The Brown Act regulations do not allow action to be taken on audience comments in which the subject is not listed on the agenda.

9. COUNCIL REPORTS

10. CITY MANAGER/CITY CLERK REPORTS

11. PUBLIC HEARINGS (6:15 PM)

11.a. Annual Review and Adoption of Resolution Updating the Fee Schedule for Community Services; Including Recreation Programs, Sports Fields, Parks, Municipal Pools, Ukiah Valley Conference Center, and the Grace Hudson Museum.

Recommended Action: Receive the annual review and adopt the resolution updating the fee schedule for Community Services; including recreation programs, sports fields, parks, Municipal Pools, Ukiah Valley Conference Center, and the Grace Hudson Museum.

Attachments:

1. Attachment 1 - 2022-XX Draft Resolution CS Fees

2. Fee Schedule for Facilities, Museum, Programs and Aquatics FY 23

12. UNFINISHED BUSINESS

13. NEW BUSINESS

13.a. Receive Report Regarding the Status of the Great Redwood Trail and the Great Redwood Trail Linear Park and Consideration of Creating an Ad Hoc Committee to Participate in Ongoing Discussions.

Recommended Action: Receive report and select ad hoc committee members.

Attachments:

1. Presentation Slides

13.b. Adoption of Resolution(s) Approving Successor Memoranda of Understanding Between the City of Ukiah and Employee Bargaining Units, and Authorizing the City Manager to Execute.

Recommended Action: Adopt a Resolution(s) approving successor Memoranda of Understanding between the City of Ukiah and employee bargaining units, and authorize the City Manager to execute on behalf of the City.

Attachments: None

13.c. Receive Updates on City Council Committee and Ad Hoc Assignments, and, if Necessary, Consider Modifications to Assignments and/or the Creation/Elimination of Ad Hoc(s).

Recommended Action: Receive report(s). The Council will consider modifications to committee and ad hoc assignments along with the creation/elimination ad hoc(s).

Attachments:

1. 2022 City Council Special Assignments

14. CLOSED SESSION - CLOSED SESSION MAY BE HELD AT ANY TIME DURING THE MEETING

14.a. Conference with Legal Counsel—Anticipated Litigation (Government Code Section 54956.9(d)(2 & 3))
Significant exposure to litigation pursuant to Government Code Section 54956.9(d)(2)(Number of potential cases: 1)
Recommended Action:

Attachments: None

14.b. Conference with Legal Counsel – Existing Litigation (Government Code Section 54956.9(d)(1)
Name of case: Roofing & Solar Construction, Inc. v. City of Ukiah et al., Mendocino County Superior Court Case No. 22CV00048
Recommended Action:

Attachments: None

14.c. Conference with Legal Counsel – Existing Litigation (Government Code Section 54956.9(d)(1))
Name of case: Vichy Springs Resort v. City of Ukiah, Et Al; Case No. SCUK-CVPT-2018-70200 Recommended Action:

Attachments: None

14.d. Conference with Legal Counsel – Existing Litigation (Government Code Section 54956.9(d)(1))
Name of case: Russian River Keepers et al. v. City of Ukiah, Case No. SCUK-CVPT-20-74612 Recommended Action:

Attachments: None

14.e. Conference with Legal Counsel – Existing Litigation (Cal. Gov’t Code Section 54956.9(d)(1))

Name of case: Siderakis v. Ukiah, et al, Mendocino County Superior Court, Case No. 21CV00603
Recommended Action:

Attachments: None

14.f. Conference with Labor Negotiator (54957.6)
Agency Representative: Sage Sangiacomo, City Manager
Employee Organizations: All Bargaining Units
Recommended Action:

Attachments: None

15. ADJOURNMENT
Please be advised that the City needs to be notified 72 hours in advance of a meeting if any specific accommodations or interpreter services are needed in order for you to attend. The City complies with ADA requirements and will attempt to reasonably accommodate individuals with disabilities upon request. Materials related to an item on this Agenda submitted to the City Council after distribution of the agenda packet are available for public inspection at the front counter at the Ukiah Civic Center, 300 Seminary Avenue, Ukiah, CA 95482, during normal business hours, Monday through Friday, 8:00 am to 5:00 pm.

I hereby certify under penalty of perjury under the laws of the State of California that the foregoing agenda was posted on the bulletin board at the main entrance of the City of Ukiah City Hall, located at 300 Seminary Avenue, Ukiah, California, not less than 72 hours prior to the meeting set forth on this agenda.

Kristine Lawler, City Clerk
Dated: 7/29/22

AGENDA ITEM 5a

CITY OF UKIAH

CITY COUNCIL MINUTES
Regular Meeting
Virtual Meeting Link: https://zoom.us/j/97199426600
Ukiah, CA 95482
July 20, 2022
6:00 p.m.

1. ROLL CALL
Ukiah City Council met at a Regular Meeting on July 20, 2022, having been legally noticed on July 15, 2022. The meeting was held virtually at the following link: https://zoom.us/j/97199426600. Mayor Brown called the meeting to order at 6:00 p.m. Roll was taken with the following Councilmembers

Present: Juan V. Orozco, Douglas, F. Crane, Mari Rodin, Josefina Dueňas, and Jim O. Brown. Staff

Present: Sage Sangiacomo, City Manager; David Rapport, City Attorney; and Kristine Lawler, City Clerk.

MAYOR BROWN PRESIDING.

2. PLEDGE OF ALLEGIANCE
The Pledge of Allegiance was led by Councilmember Orozco.

3. PROCLAMATIONS/INTRODUCTIONS/PRESENTATIONS
a. Proclamation: Disability Independence Day in the City of Ukiah.

Presenter: Mayor Brown.

Proclamation was received by Vice Mayor Duenas.

4. PETITIONS AND COMMUNICATIONS

5. APPROVAL OF MINUTES
a. Approval of the Minutes for the June 15, 2022, Regular Meeting. b. Approval of the Minutes for the June 29, 2022, Special Meeting.

Motion/Second: Rodin/Orozco to approve Minutes of June 15, a regular meeting; and June 29, a special meeting, as submitted. Motion carried by the following roll call votes: AYES: Orozco, Rodin, Dueňas, and Brown. NOES: None. ABSENT: None. ABSTAIN: Crane.

6. RIGHT TO APPEAL DECISION
Mayor Brown read the rights to appeal City Council decisions.

7. CONSENT CALENDAR
a. Report of Disbursements for the Month of June 2022 - Finance. b. Authorize City Manager to Negotiate and Execute an Agreement (COU No. 2223-076) with the Fire Safe Council of Mendocino County for Environmental Review Work Towards Fire Prevention and Mitigation Efforts on City-Owned Properties - Administration. c. Adoption of Resolution (2022-45) of the City Council Reconsidering the Circumstances of the State of Emergency and Implementing Teleconferencing Requirements for City Council and Board and Commission Meetings During a Proclaimed State of Emergency Due to the COVID19 Pandemic – City Attorney.

City Council Minutes for July 20, 2022, Continued:

d. Designation of Voting Delegates and Alternates for the League of California Cities Annual Conference – September 7-9, 2022 – City Clerk.
e. Consideration of Adoption of Resolution (2022-46) Approving Records Destruction for the Finance Department – City Clerk.
f. Possible Adoption of an Ordinance of the City Council of the City of Ukiah Repealing Articles 1A and 2 in Division 1, Chapter 4 of the Ukiah City Code to Remove References to Obsolete Boards and Commissions – City Attorney.

ORDINANCE No. 1225
ORDINANCE OF THE CITY COUNCIL OF THE CITY OF UKIAH REPEALING ARTICLES 1A AND 2 IN DIVISION 1, CHAPTER 4 OF THE UKIAH CITY CODE TO REMOVE REFERENCES

TO OBSOLETE BOARDS AND COMMISSIONS
g. Council to Receive and File Adopted 2022-23 Fiscal Year City of Ukiah Budget Document - Finance.
h. Consideration of Approval of Minor Reorganization of Planning Division of Community Development Department – Community Development.
i. Report of the Acquisition of Professional Services Contract (COU No. 2223-077) for the Plans and Specifications Modifications for the Clara Avenue Reconstruction Project with Coastland Engineers Inc. in the amount of $15,420, and Approve Corresponding Budget Amendments – Public Works.
j. Consideration of Award of Bid (COU No. 2223-078) to Granite Construction Company in the Amount of $1,511,529.90 for the State Street and Dora Street Rehabilitation Project, Specification No.21-04, and Approval of Corresponding Budget Amendment – Public Works. k. Report of the Acquisition of Consulting Services (COU No. 2223-079) with GHD Inc. for Flood Mapping Review Support the Amount of $19,272.00 – Public Works. l. Report on Contract (COU No. 1920-003-A2) with CivicPlus for Agenda and Meeting Management Services, and Requesting Authorization to Continue Using Services Until Further Notice – City Clerk.
m. Consideration of Approval of a Budget Amendment in the Amount of $56,000.00 for the Purchase of Personal Protective Equipment (PPE) for the Ukiah Valley Fire Authority (UVFA) - Fire.
n. Award Professional Services Agreement (COU No. 2223-080) to LDA Partners, Inc. in the Amount of $1,218,573 to Prepare the Plans, Specifications, and Estimate for the Corporation Yard Design – Public Works.
o. Report of the Acquisition of Parts and Labor (PO No. 48057) for the repair of 2018 Pierce Fire Engine from Golden State Emergency Vehicle Services Inc. in the Amount of $53,505.32, and Approval of Corresponding Budget Amendment – Public Works.

Motion/Second: Crane/Rodin to approve Consent Calendar Items 7a-7o, as submitted. Motion carried by the following roll call votes: AYES: Orozco, Crane, Rodin, Dueňas, and Brown. NOES:

None. ABSENT: None. ABSTAIN: None.

City Council Minutes for July 20, 2022, Continued:

8. AUDIENCE COMMENTS ON NON-AGENDA ITEMS

No public comment was received.

9. COUNCIL REPORTS
Presenters: Councilmembers Rodin and Orozco, and Mayor Brown.

10. CITY MANAGER/CITY CLERK REPORTS
Presenters:
 Broadband and Dark Fiber Network – Sage Sangiacomo, City Manager.  Orr Street Bridge Projects – Sage Sangiacomo, City Manager.  Election Filing Period – Kristine Lawler, City Clerk.

11. PUBLIC HEARINGS (6:15 PM)
a. Public Hearing and Possible Introduction by Title Only of an Ordinance Amending Various Sections of Ukiah City Code to Streamline the Use Permit Application Process and Operational Standards for Cannabis-Related Businesses.

Presenters: Craig Schlatter, Community Development Director and Darcy Vaughn, Assistant City Attorney.

PUBLIC HEARING OPENED AT 6:27 P.M.

No public comment was received.

PUBLIC HEARING CLOSED AT 6:28 P.M.

Motion/Second: Rodin/Orozco to introduce the Ordinance by title only. Motion carried by the following roll call votes: AYES: Orozco, Crane, Rodin, Dueňas, and Brown. NOES: None. ABSENT:

None. ABSTAIN: None.

City Clerk, Kristine Lawler, read the following title into the record:

ORDINANCE OF THE CITY COUNCIL OF THE CITY OF UKIAH AMENDING VARIOUS SECTIONS

OF THE UKIAH CITY CODE TO AMEND THE USE PERMIT APPLICATION PROCESS AND OPERATIONAL STANDARDS FOR CANNABIS RELATED BUSINESSES.

Motion/Second: Rodin/Orozco to introduce the Ordinance amending various sections of the Ukiah City Code to streamline the use permit application process and operational standards for cannabisrelated businesses. Motion carried by the following roll call votes: AYES: Orozco, Crane, Rodin, Dueňas, and Brown. NOES: None. ABSENT: None. ABSTAIN: None.

12. UNFINISHED BUSINESS
a. Receive Report Regarding the Economic Development and Financing Corporation (EDFC); Consideration of Request for Funding from EDFC; and Authorize the City Manager to Negotiate and Execute Performance Agreement Between the City of Ukiah and EDFC in the amount of $12,455.25 for FY 2022-23.

Presenters: Shannon Riley, Deputy City Manager and Robert Gernet, EDFC Executive Director.

Motion/Second: Rodin/ORozco to receive the report regarding the Economic Development and Financing Corporation (EDFC), and authorize the City Manager to negotiate and execute Performance Agreement (COU No. 2223-081) between the City of Ukiah and EDFC . Motion carried

City Council Minutes for July 20, 2022, Continued:

by the following roll call votes: AYES: Orozco, Crane, Rodin, Dueňas, and Brown. NOES: None.

ABSENT: None. ABSTAIN: None.
b. Approve Contract with HdL Companies for Tax and Fee Administration Services for Transient Occupancy, and Approve Corresponding Budget Amendment.

Presenter: Dan Buffalo, Finance Director.

Motion/Second: Orozco/Rodni to re-authorize the City Manager to execute a three-year contract (COU No. 2223-082) with HdL Companies for audit and financial assistance services of the City's Transient Occupancy Tax (TOT) revenue - including short term rental compliance, and authorize the corresponding budget amendment. Motion carried by the following roll call votes: AYES: Orozco, Crane, Rodin, Dueňas, and Brown. NOES: None. ABSENT: None. ABSTAIN: None.

13. NEW BUSINESS
a. The Ukiah City Council will Receive a Report on Energy Costs and Provide Direction on Scheduling a Public Hearing to Consider Adoption of a Power Cost Surcharge Rider.

Presenter: Cindy Sauers, Electric Utility Director and Boris Prokop, Borismetrics.

Motion by Councilmember Crane and seconded by Councilmember Rodin.

Upon further discussion, it was decided that direction could be given to Staff by way of consensus.

Council Consensus to authorize Staff to proceed with public noticing and scheduling a Public Hearing to consider adoption of a Power Cost Surcharge Rider. b. Consideration of New Ad Hoc Committee to Participate in the Recruitment Process for a New Police Chief.

Presenter: Sage Sangiacomo, City Manager.

Motion/Second: Orozco/Crane to nominate and appoint Mayor Brown and Councilmember Rodin to serve on a Police Chief recruitment ad hoc. Motion carried by the following roll call votes: AYES:

Orozco, Crane, Rodin, Dueňas, and Brown. NOES: None. ABSENT: None. ABSTAIN: None. c. Receive Updates on City Council Committee and Ad Hoc Assignments and, if Necessary, Consider Modifications to Assignments and/or the Creation/Elimination of Ad hoc(s).

Presenter: Mayor Brown and Councilmember Rodin.

Mayor direction for Councilmember Rodin to participate with Staff at the EDFC meetings, and report back to Council on what type of involvement she would like going forward.

THE CITY COUNCIL ADJOURNED TO CLOSED SESSION AT 7:40 P.M.

RECESS: 7:40 – 7:55 P.M.

City Council Minutes for July 20, 2022, Continued:

14. CLOSED SESSION
a. Conference with Legal Counsel—Anticipated Litigation (Government Code Section 54956.9(d)(2 & 3))
Significant exposure to litigation pursuant to Government Code Section 54956.9(d)(2)(Number of potential cases: 1)
b. Conference with Legal Counsel – Existing Litigation
(Government Code Section 54956.9(d)(1)
Name of case: Roofing & Solar Construction, Inc. v. City of Ukiah et al., Mendocino County Superior Court Case No. 22CV00048
e. Conference with Legal Counsel – Existing Litigation
(Cal. Gov’t Code Section 54956.9(d)(1))
Name of case: Siderakis v. Ukiah, et al, Mendocino County Superior Court, Case No. 21CV00603 d. Conference with Legal Counsel – Existing Litigation
(Cal. Gov’t Code Section 54956.9(d)(1))
Name of case: Arturo Flores Valdes et al., (Fed. Dist. Ct., N.D. Cal.) 22-CV-03125 RMI e. Conference with Real Property Negotiators
(Cal. Gov’t Code Section 54956.8)
Property: APN Nos: 157-070-04, 001-040-84, 001-040-82, 001-040-65 Negotiator: Sage Sangiacomo, City Manager;
Negotiating Parties: Dave Hull and Grady Huff
Under Negotiation: Price & Terms of Payment
f. Conference with Labor Negotiator (54957.6)
Agency Representative: Sage Sangiacomo, City Manager
Employee Organizations: All Bargaining Units
g. Public Employee Discipline/Dismissal/Release
No action reported; direction provided to staff.

15. ADJOURNMENT
There being no further business, the meeting adjourned at 9:45 p.m. ________________________________
Kristine Lawler, City Clerk/CMC

Agenda Item No: 7.a.

MEETING DATE/TIME: 8/3/2022
ITEM NO: 2022-1671

AGENDA SUMMARY REPORT
SUBJECT: Report to Council for Preliminary and Conceptual Trail Planning and Mapping Provided by Rock Solid Trail Contracting in an Amount not to Exceed $15,096.

DEPARTMENT: City Manager /
Admin PREPARED BY: Maya Simerson, Project & Grant Administrator PRESENTER: Maya Simerson, Project and Grant Administrator ATTACHMENTS:

1. RS Proposal

2. Contract
Summary: Council will receive notification of the contract expenditure for the services of Rock Solid Trail Contracting for preliminary and conceptual trail planning and mapping for potential public access to Cityowned property.

Background: The City has been actively working towards expanding our trail systems. The recent opening of the new loop of the City View trail was met with an enthusiastic welcome. A long-term vision and goal of the City is to provide the community with a network of trails spanning our western hills from north to south. The first step towards accomplishing new trails is to identify access points and available property and start a phased approach towards total connectivity. This work will help identify the best route(s) for access to Cityowned property and facilities such as water tanks, while avoiding conflicts between these goals, as well as plans of adjacent landowners.

Discussion: Staff reached out to a consulting firm that is renowned for their trail expertise and was provided with the attached proposal. (Attachment 1). After review of the proposal, Staff moved forward with an agreement, provided as Attachment 2. This work is for understanding the feasibility, and a planning study, for possible future actions, none of which have been approved, adopted, or funded. The study will include consideration of environmental factors, but full environmental review would occur prior to the finalization of any plans. Any future actions will be brought forward through the public process.

The scope of work for the contract details that, in coordination with the City of Ukiah, Rock Solid proposes to review the project areas to determine the type and location of facilities that are suitable for, and meet the needs, of the City and community. This may include walk and bike (singletrack) concept zones and a concept plan/alignment for a gateway trail connecting the community with the open space. The analysis would also include identifying key points of interest such as trailheads, access points, parking facilities and hubs.

To properly assess the project area, Rock Solid will travel to the site to meet with key stakeholders, conduct a pedestrian survey to identify control points and collect photo documentation. The findings of this site analysis will be summarized in a report, which will include a picture and brief description of each facility, and recommendations to consider during design and construction.

As mentioned above, this work will help identify the best routes for access to open space and other Ukiah facilities while helping to lay the foundation for city access to new facilities, public access for trails, and avoiding interfering with the plans of adjacent landowners.

The report will include a map depicting the location of trail concept zones and the conceptual layout of the gateway trail. Conceptual walk and bike (single track) trails will be grade-checked using GIS software.

Trails and greenways provide what many people seek — close-to-home recreational areas, community meeting places, historic preservation, educational experiences, natural landscapes and beautification. Both trails and greenways help communities build pride by ensuring that their neighborhoods are good places to live. Trails and greenways help make communities more attractive and friendly places to live.

Please note this is a feasibility and planning study for possible future actions only, none of which have been approved, adopted, or funded. Any future actions resulting from the work product will be followed up with a full public process and environmental review.

Recommended Action: Receive notification of contract expenditure with Rock Solid Trail Contracting for trail concept plan and mapping in an amount not to exceed $15,096.

BUDGET AMENDMENT REQUIRED: No.

CURRENT BUDGET AMOUNT: 20012200.52100: $15,500
PROPOSED BUDGET AMOUNT: N/A
FINANCING SOURCE: N/A
PREVIOUS CONTRACT/PURCHASE ORDER NO.: Contract 2122-239 COORDINATED WITH: Sean White, Director of Water Resources, Neil Davis, Community Services Director, Sage Sangiacomo, City Manager, and Mary Horger, Financial Services Manager

DOOLIN CREEK GATEWAY TRAIL CONCEPT PLAN

AND TRAIL FEASIBILITY STUDY

UKIAH, CALIFORNIA
DESIGN.

CONSTRUCTION.

CONSULTING.

ATTN: SEAN WHITE

CITY OF UKIAH

04.25.2022

PROPOSED SCOPE OF WORK
Rock Solid Trail Contracting, LLC. is pleased to submit this proposal for a gateway trail concept plan and trail feasibility study for the City of Ukiah, California. In coordination with the City of Ukiah, Rock Solid proposes to review the project area to determine the type and location of facilities that are suitable for the project area and meet the needs of the client and community.

This would include singletrack concept zones and a concept plan/alignment for a gateway trail connecting the community with the water tank location. The analysis would also include identifying key points of interest such as trailheads, access points, parking facilities and hubs. To properly assess the project area, Rock Solid will travel to the site to meet with key stakeholders, conduct a pedestrian survey to identify control points and collect photo documentation. The findings of this site analysis will be summarized in a report, which will include a picture and brief description of each facility, and recommendations to consider during design and construction.

The report will include a map depicting the location of trail concept zones and the conceptual layout of the gateway trail. Conceptual single track trails will be grade checked using GIS software.

Scope:
• Two day scouting trip to project area.
• PDF report sumarizing the findings of the feasibilty study, including point of interest matrix and trail matrix • Georeferenced PDF map of proposed trail concept zones, gateway trail alignment, and other points of interest.

SCOPE
COVER: ALL WEATHER CHIP-SEAL RIDING

ON LEOPARDS LOOP, BENTONVILLE AR
THIS PAGE: MAMA BEAR CHIP-SEAL LOOP,

BENTONVILLE AR
jon@rocksolidtrails. 1 Call direct: 651.238.3292

FEASIBILITY STUDY
& CONCEPT PLAN

DOOLIN CREEK TRAILS AND

WATER TANK GATEWAY TRAIL
Total Proposed Planning Budget: ~ $15,096 (including
travel expenses)
Facilities Under Consideration:
• Gateway Trail
• Single Track
• Trailhead
• Gathering Space
Design Timeline: May - October 2022
SCOPE

APPROACH & PLANNING PROCESS
Collect & Assemble Geospatial (GIS) Data
Define Project Vision
Perform Desktop Analysis
• Analyze slopes, soil moisture, soil types, topography, waterways, wetlands, property lines & limits, basic
terrain factors, access, existing trails & roads,
trailheads and parking.
• Plan Scouting Strategy
Site Visit & Ground Scouting
• Hike the property to gather data points of potential
features (rock features, bridges, etc), special
interest areas (overlooks, waterfalls, unique trees
& ecosystems, etc), construction constraints, trail
routing constraints, potential on-site materials,
access points & material staging areas.

Organize & Analyze Site Visit Data
Identify Use Zones
Prepare Feasibility Report & Concept Plan
• Summary outlining the feasibility of trails and
amenities suitable for the project area.

TRAIL CONCEPT
ZONES
WATER
TANK

TRAIL CONCEPT
ZONES

GATEWAY
TRAIL
jon@rocksolidtrails. 2 Call direct: 651.238.3292

BUDGET

DOOLIN CREEK TRAILS & GATEWAY TRAIL
FEASIBILITY STUDY& CONCEPT PLAN D.MI.MEMBA.MuskegonPT

TYPE TOTAL AMT QTY
Travel $2,160 135 $ 16
Project Area Scouting $2,160 135 $ 16
Identify vision for intended experience and scope of facility. Identify budget and zones appropriate for development. Prepare feasibility & concept report summarizing findings to be carried forward to design.
$8,640 $ 135 64
SUB-TOTAL $12,960
Flight - Bentonville to Santa Rosa $750 $750 1
Lodging (x nights) $450 $150 3
Car Rental $280 $70.00 4
Gasoline (gallons) $64 $5.36 12
Per Diem (M&IE) $236 $59 4
Travel Contingency $356 20% 1780
TOTAL (Phase 5) $2,136
TOTAL: VISIONING, FEASIBILITY PLAN, CONCEPT DEVELOPMENT $12,960 TOTAL: TRAVEL EXPENSES $2,136
TOTAL: $15,096

TRAVEL EXPENSES - PLANNING TRIP

TOTAL COST
2022 Doolin Creek Planning Work

VISIONING, FEASIBILITY PLAN, CONCEPT DEVELOPMENT

FINAL DELIVERABLES
• Two day scouting trip to project area.
• PDF report sumarizing the findings of the feasibilty study, including point of interest matrix and trail matrix
• Georeferenced PDF map of proposed trail concept zones, gateway trail alignment, and other points of interest.
jon@rocksolidtrails. 3 Call direct: 651.238.3292

GENERAL CONDITIONS

SITE ACCESS & DEFINITION
Client will obtain all necessary permits, permissions, and site access for Rock Solid to complete the proposed/agreed upon work.

Property boundaries will be clearly identifiable to Rock Solid employees working on site. If property boundaries are disputed or unclear, the client will provide immediate assistance to clarify boundaries via professional survey or other means.

PROJECT SCHEDULING
Proposed start and end dates are subject to change. Rock Solid is not responsible for delays due to uncontrollable circumstances including, but not limited to; natural disasters and extreme weather.

Final approval for work, and/or ‘Notice to Proceed’ needs to be provided to Rock Solid prior to a crew being mobilized to the site.

WARRANTY
Rock Solid provides a 1 year warranty on all trail built. The warranty goes into effect after the trail has been paid for and/or accepted by the client.

FEES & BILLING
This proposal is valid for 30 days after issue. Rock Solid reserves the right to rescind or revise the offer after proposal becomes invalid.

LIABILITY & INSURANCE
Certificates of Insurance will be provided upon request. Any requested changes to coverage may be subject to additional cost.

CONDITIONS
jon@rocksolidtrails. 4 Call direct: 651.238.3292

ROCK SOLID AGREEMENT
By signing this agreement, the client is retaining the services of Rock Solid to complete the scope of this work by October 2022 on a time and materials basis, for an estimated fee of $15,096. Rock Solid will not exceed this cost without permission from Sean White or other designated City of Ukiah employee.

Approved for _______________________________________________________________________________________________ Name & Title _______________________________________________________________________________________________ Signature ____________________________________________________________________ Date _______________________ Approved for Rock Solid
Jon Schubbe, Vice President
Signature ____________________________________________________________________ Date _______________________

AGREEMENT

05.09.2022
jon@rocksolidtrails. 5 Call direct: 651.238.3292

ATTACHMENT 2

Agenda Item No: 7.b.

MEETING DATE/TIME: 8/3/2022
ITEM NO: 2022-1851

AGENDA SUMMARY REPORT
SUBJECT: Award a Contract for Specification #E39169 - Street Striping 2022, to Chrisp Company of Freemont, California, in the Amount of $44,555.96 for Street Striping 2022.

DEPARTMENT: Public Works PREPARED BY: Daniel Flores, Engineer Technician PRESENTER: Tim Eriksen, Public Works Director/City Engineer ATTACHMENTS:

1. RFB - Specification E39169

2. Bid Tab

3. Chrisp Company Bid
Summary: Council will consider awarding a contract to Chrisp Company in the amount of $44,555.96 for Specification #E39169 Street Striping 2022.

Background: Street striping is completed on a regular basis in order to be certain that centerline striping, bicycle lanes, etc. remain visible for those traveling on city streets.

Discussion: In accordance with City Code Section 1522, the City distributed Requests for Bids to Builders Exchanges in addition to all striping contractors on the City's 2022 Qualified Contractors List for the annual street striping contract. The City publicly advertised this project on the City's webpage. (Attachment 1) Bids were opened on July 14, 2022, with (3) bidders responding. A copy of the bid tabulation is provided (Attachment 2) in addition to a copy of Chrisp Company bid (Attachment 3). Chrisp Company had the lowest responsive, responsible bid in the amount of $44,555.96. The City budgeted $50,000 for this project. It is therefore Staff's recommendation to award the contract to Chrisp Company.

Compensation for the performance of the work will be based on unit prices bid for contract item quantities actually installed. Bid totals are based on unit prices bid for contract items at estimated quantities, and therefore, the actual total paid to the contractor may be lower or higher than the bid total indicated. As with construction projects, there may be cost overruns by reason of unforeseen work or because actual quantities installed exceed estimated quantities. Policy Resolution No. 13 authorizes the responsible Department Head, with approval of the City Manager, to issue change orders not to exceed 10 percent of the original contract sum or $5,000, whichever is greater, provided that no change, when added to the original contract sum, exceeds the amount budgeted for the project.

Recommended Action: Award Contract to Chrisp Company in the amount of $44,555.96.

BUDGET AMENDMENT REQUIRED: No
CURRENT BUDGET AMOUNT: 12024200.80230.18251: $50,000.00 PROPOSED BUDGET AMOUNT: N/A
FINANCING SOURCE: N/A
PREVIOUS CONTRACT/PURCHASE ORDER NO.: N/A
COORDINATED WITH: Tim Eriksen, Director of Public Works; Mary Horger, Financial Services Manager

REQUEST FOR BID
City of Ukiah
SPECIFICATION E39169
STREET STRIPING 2022
June 29, 2022
Bid Due Date
1:30 p.m., July 14, 2022

City of Ukiah RFB- E39169 Street Striping 2022
2 I. Introduction
City of Ukiah is seeking bids from qualified Contractorsto provide all necessary materials, equipment and labor to paint traffic stripes. General locations of the work are shown in the Attachment A. A map will be provided to the successful bidder showing exact locations of the work to be done. All work shall be done under the direction of the City of Ukiah Public Works Department.

II. Bid Procedure
PLEASE TAKE NOTICE: This Request for Bid (RFB) is issued as an open market purchase under Section 1522 of the Ukiah City Code. This is not a formal or informal bid under the provisions of state law governing RFB’s for Public Projects. The procedures governing open market purchases are at the discretion of the Purchasing Officer and may vary from bid to bid, depending on the City’s needs. The City Code encourages the Purchasing Officer to use modern communications, including the telephone, e-mail and the internet, to obtain the lowest possible price, consistent with the City’s needs. The Purchasing Officer does use City bidder’s lists when soliciting bids. You may contact the Purchasing Officer if you would like to be placed on the City’s bidder’s list.

III. Contact Person
The City has designated Mary Horger, Financial Services Manager, as the contact person for questions related to the work requested. Questions are to be submitted in writing, and can be done so by email at [email protected].

IV. Examination of the Site
The Contractor should familiarize himself with the local conditions of the project sites, and shall be responsible for having acquired full knowledge of the job and all problems affecting it. Failure to do so will in no way relieve him/her of the responsibility for performing any of the work or operations required as part of this contract.

V. Bid Submittal Instructions
Bids can be submitted in hardcopy or by email. Bids are due on or before 1:30 p.m., July 14, 2022 to:

City of Ukiah Purchasing Department
Attn: Mary Horger
411 West Clay Street
Phone: (707) 463-6233
Email: [email protected]
It will be the sole responsibility of the bidders to have their bids delivered to the City before the closing hour and date. Late bids will not be considered and will be returned unopened to the sender. The City will not be responsible for any cost incurred by the Contractor in preparation of their bid response.

VI. Scope of Work
All of the work to be performed is within the City of Ukiah and consists of painted traffic stripes.

General locations of the work are shown in Attachment A. A map will be provided to the successful bidder showing the exact locations of the work to be done. All work will be done under the direction of the City of Ukiah Public Works Department. Work on streets may be painted during night time hours upon approval of the Director of Public Works/City Engineer.

City of Ukiah RFB- E39169 Street Striping 2022
3 1) Control of Alignment and Layout
All work necessary to establish satisfactory alignment for stripes shall be performed by the contractor with any device or method that will not damage the pavement nor conflict with other traffic control devices.
2) Tolerances and Appearance
This section shall conform to Section 84-1.03, CALTRANS - Standard Specifications, May, 2006. 3) Protection from Damage
The Contractor shall take special care to protect existing reflective pavement markers and shall, at his expense, replace all coated markers.

Newly placed traffic stripes shall be protected from damage by traffic or other causes until the paint is thoroughly dry. Contractor, at his expense, shall promptly remove any paint applied, spilled, or tracked outside of specified locations to be striped.
4) Painted Traffic Stripes - Description
This work shall consist of painting traffic stripes including applying glass beads. 5) Materials
Paint shall be either waterborne traffic line paint conforming to State Specification No. PTWB-01 dated February 2006 or solvent-borne, acetone-based/VOC compliant traffic line paint conforming to State Specification No. PT-150VOC(A) dated February 2006.

Glass beads shall conform to State Specification No. 8010-004 dated March 2010.

Copies of California State Specifications for traffic paint and glass beads may be obtained from the Caltrans Chemical Testing Branch, 5900 Folsom Blvd, Sacramento, California, 95819, at (916) 227-7289 or from the following website: http://www.dot.ca.gov/hq/esc/ttsb/chemical/specifications.htm 6) Mixing
Mechanical mixers shall be used to mix paint. Prior to application, the paint shall be mixed a sufficient length of time to thoroughly mix the pigment and vehicle together, and shall be kept thoroughly agitated during its application.
7) Application Equipment
Mechanical means shall be used to paint traffic stripes and to apply the glass beads for traffic stripes.

All equipment used in the application of traffic stripes shall produce stripes of uniform quality that conform to the specified requirements.

The striping machine shall be capable of accurately superimposing succeeding coats of traffic paint upon the first coat and upon existing stripes at a speed of at least 5 miles per hour.

The striping machine shall consist of a rubber-tired vehicle that is maneuverable to the extent that straight

City of Ukiah RFB- E39169 Street Striping 2022
4 lines can be followed and normal curves can be made in true arcs. It shall be capable of applying traffic paints and glass beads at the rates specified. The striping machine shall be equipped with the following:
a) A pointer or sighting device, not less than 5 feet long and extending from the front of the machine. b) A pointer or sighting device, extending from the side of the machine to gauge the distance from the centerline, for painting shoulder stripes.
c) A positive-acting cutoff device to prevent depositing paint in gaps of broken stripes. d) Shields or an adjustable air curtain for line control. e) Pressure regulators and gauges (if pneumatically operated) that are in full view of the operator. f) A paint strainer in the paint supply line.
g) A paint storage tank with a mechanical agitator that operates continuously during painting operations. h) A glass bead dispenser located behind the paint applicator nozzle and that is controlled simultaneously with the paint applicator nozzle; and
i) Calibrated rods for measuring the volume of paint and glass beads in the paint and in the glass bead tanks.

All spray equipment shall be of a proper type and of adequate capacity for the work. Air-atomized spray equipment shall be equipped with oil and water extractors and pressure regulators and they shall have adequate air volume and compressor recovery capacity. Spray gun tip needle assemblies and orifices shall be of the proper sizes.
8) Street Striping Application
Prior to application of striping, the City will provide street sweeping. The Contractor shall be responsible for removal of any leaves or litter appearing in the striping area after the streets are swept.

Contractor shall protect against paint splattering onto parked cars particularly at locations of the four-inch white bicycle lane striping. If deemed necessary, Contractor shall post notices, indicating the date and times that street parking will be prohibited, a minimum of 72 hours in advance of striping on streets with bicycle lanes. These notices shall be placed in obvious locations and be spaced no further than 250 feet apart along the length of the street and on each side of the affected street. The Contractor shall also give notice to the Engineer a minimum of 72 hours in advance of working at the site so that the City can give written notice to adjacent property owners.

Traffic Stripes shall be applied only on dry surfaces and only during periods of favorable weather.

Painting shall not be performed when the atmospheric temperature is below 40º F when using solvent borne paint or below 50ºF when using water borne paint; when freshly painted surfaces may become damaged by rain, fog, or condensation; nor when it can be anticipated that the atmospheric temperature will drop below the above 40º F or 50º F during the drying period On existing surfacing, traffic stripes shall be applied in one coat.

Each coat of paint for any traffic stripe, including glass beads where required, shall be applied in one pass of the striping machine, regardless of the number, widths, and patterns of the individual stripes involved.

Paint to be applied in one coat, shall be applied at an approximate rate of one gallon per 107 square feet.

City of Ukiah RFB- E39169 Street Striping 2022
5 Glass beads shall be uniformly incorporated in all coats of paint concurrently with the application of the paint. Beads shall be embedded in the coat of traffic paint being applied, to a depth of ½ their diameters.

Glass beads shall be applied at an approximate rate of five (5) pounds per gallon of paint.

VII. Measurement and Payment
Painting traffic stripes will be measured by the linear foot, along the line of the traffic stripes, without deductions for gaps in broken traffic stripes. A double traffic stripe consisting of two 4-inch wide yellow stripes, separated by a 3-inch black stripe, will be measured as one traffic stripe.

The contract price paid per linear foot for painted traffic stripes shall include full compensation for furnishing all labor, materials, tools, equipment and incidentals, posting notices on streets with bicycle lanes, and for doing all the work involved in painting traffic stripes.

VIII. Terms
The City asksthat vendors specify their desired payment preferences in their bid response. The actual payment terms of the contract will be open for negotiation during the contract phase. If no special payments are requested prior to issuing the work, the City will assume net 30 terms.

The City reserves the right to award to the lowest, responsible bidder. The City also reserves the right to waive any irregularities and technicalities and request rebids should it be deemed in its best interests to do so. The price, terms, delivery point, and delivery date may individually or collectively be the basis of the awarding of the bid. In addition, the City reserves the right to make the selection of specific parts of a bid, or multiple proposals that will best meet the needs of the City as defined in this RFB. In addition, the City reserves the right to reject any or all bids. The awarded contractor will enter a “Short Form Construction Contract”, Attachment B.

IX. Addenda
If it becomes necessary to revise any part of this Request for Bid (RFB) after it has been issued, the City will issue an addendum to the RFB containing the revision. All addenda will be posted on the City’s website at www.cityofukiah.com/purchasing with the rest of the RFB documents. Anyone who intends to submit a bid in response to the RFB must check the website frequently for any posted addenda. Anyone submitting a bid will be deemed to have seen and agreed to be bound by the posted addenda.

X. Work Scheduling
No work shall be done between the hours of 6 p.m. and 7 a.m., nor on Saturdays, Sundays or legal
holidays except such work as is necessary for the proper care and protection of work already performed, or
except in cases of absolute necessity and in any case only with the permission of the Engineer.

It is understood, however, that night work may be established as a regular procedure by the Contractor
if he or she first obtains the written permission of the Engineer and that such permission may be revoked at any

City of Ukiah RFB- E39169 Street Striping 2022
6 time by the Engineer if the Contractor fails to maintain at night adequate force and equipment for reasonable
prosecution and to justify inspection of the work.

XI. Bidder Qualifications
The City will satisfy itself that the potential contractors are reputable firms with a proven track record and a proven product. Contractors are asked to provide the information requested under Work Performance History Capability. References are to be those who you have performed similar scope of work as asked for in this RFB. References are to include the contact name and phone number. A minimum of three references are requested.

XII. Insurance Requirements
Bidder’s attention is directed to the insurance requirements – see Attachment C. Contractors shall furnish to the City, upon award of contract, certificates of insurance covering full liability under Worker’s Compensation laws of the State of California, Comprehensive General Liability and Business Auto Insurance with policy limits of not less than $1,000,000 naming the City as an additional insured party.

It is highly recommended that contractors confer with their respective insurance carriers or brokers to determine in advance of bid submission the availability of insurance certificates and endorsements as prescribed and provided herein. If an apparent awarded contractor fails to comply with the insurance requirements, that contractor may be disqualified from award of the contract. If you have questions regarding the City’s requirements, please contact the City’s Risk Manager at 707-463-6287.

XIII. License and Additional Requirements
1) Compliance with Laws and Regulations: All materials, parts and equipment furnished pursuant to these specifications shall be in compliance with the laws and regulations of the State of California and OSHA.

The contractor shall, if requested by the City, supply certification and evidence of such compliance. 2) Payment Bond: As per California Civil Code Section 9550, a direct contractor that is awarded a public works contract involving an expenditure in excess of twenty-five thousand dollars ($25,000) shall, before commencement of work, give a payment (material and labor) bond to and approved by the officer or public entity by whom the contract was awarded. Please refer to Attachment D for a copy of the sample forms.
3) Legal Requirements and Permits: The contractor agrees to fully comply with all local, City, State and Federal laws, regulations and ordinances governing performance of contractual services required, and it will be the responsibility of the contractor to obtain any and all necessary licenses, permits or clearances, including the actual cost of licenses.
4) License Requirements: Bidder/Contractor must possess a current State of California contractor’s license and a City of Ukiah business license. (For information business license, please contact Liz Frausto, City of Ukiah Finance Department at 707-463-6215.) a) The Contractor shall possess a valid State of California Class A or Class C-32 (Parking and Highway Improvement) license. Bidder shall provide proof of possession of the proper licenses and certificates of registration necessary to perform the work. Employees actually performing the tasks shall provide proof of proper certificates of registration for same.
b) The bidder shall keep in force a City of Ukiah business license for the extent of the project. c) Where subcontractors/jobbers are used, bidder shall provide the City with proof of proper licenses, certificates and proof of insurance for work performed. 5) Notice to Bidders – Contractor Registration and Prevailing Wages –No contractor or subcontractor may be listed on a bid proposal for a public works project unless registered with the Department of Industrial Relations pursuant to Labor Code section 1725.5 [with limited exceptions

City of Ukiah RFB- E39169 Street Striping 2022
7 from this requirement for bid purposes only under Labor Code section 1771.1(a)]. No contractor or subcontractor may be awarded a contract for public work on a public works project unless registered with the Department of Industrial Relations pursuant to Labor Code section 1725.5. The prime contractor shall be responsible for posting job site notices as prescribed by regulation. This project is subject to compliance monitoring and enforcement by the Department of Industrial Relations.

Public Works Small Project Exemption: Small project exemption means that contractors who work exclusively on small projects are not required to register as public works contractors or file electronic certified payroll reports for those projects. However, prevailing wages must still be paid on projects with small project exemption. Contractors are still required to maintain certified payroll records on a continuous basis, and provide those records to the Labor Commissioner’s Office upon request. Small project exemption is applied based on the amount of the entire project, not a contractors subcontracted amount of the project. Small project exemption applies for all public works projects that do not exceed: $25,000 for new construction, alteration, installation, demolition or repair; and $15,000 for maintenance.

Each laborer or mechanic of Contractor or any subcontractor engaged in work on the project under this contract shall be paid, pursuant to provisions of Section 1770, including amendments thereof, of the Labor Code of the State of California, the Director of the Department of Industrial Relations, State of California, has ascertained the general prevailing rate of wages for straight time, overtime Saturdays, Sundays and Holidays including employer payment for health and welfare, vacation, pension and similar purposes, copies of the General Prevailing Wage Determination (applicable to the work), for the locality in which the work is to be done can be reviewed at Website: www.dir.ca.gov/dlsr/pwd/northern.html .

The Labor Commissioner through the Division of Labor Standards Enforcement (DLSE) may at any time require contractor and subcontractors to furnish electronic certified payroll records directly to DLSE. For projects that do not meet the “Public Works Small Project Exemption”, contractors and subcontractors must furnish electronic certified payroll records directly to the DLSE.

City of Ukiah RFB- E39169 Street Striping 2022
8 INDEMNIFY AND HOLD HARMLESS AGREEMENT
Contractor agrees to accept all responsibility for loss or damage to any person or entity, and to defend, indemnity, hold harmless and release the City, its officers, agents and employees, from and against any and all actions, claims, damages, disabilities, or costs of litigation that may be asserted by any person or entity, arising out of or in connection with the negligent or willful misconduct in the performance by contractor hereunder, whether or not there is concurrent, passive or active negligence on the part of the City, but excluding liability due to the sole active negligence or willful misconduct of the City. This indemnification obligation is not limited in any way by any limitation on the amount or type of damages or compensation payable to or for Contractor or its agents under Workmen's Compensation acts, disability benefits acts or other employee's benefits acts.

Contractor shall be liable to the City for any loss or damage to City property arising from or in connection with Contractor performance hereunder. The undersigned acknowledges that this document, together with the resulting purchase order issued by the City, the executed Short Form Construction Contract, the insurance requirements for contractors, and the Contractor Statement Regarding insurance coverage comprise a written agreement between the Contractor and the City binding on both parties.

The undersigned declares they are familiar with the items specified and have carefully read the RFB specification/requirements, checked all of the figures stated on the specifications and accepts full responsibility for any error or omission in the preparation of this bid.

This bid is submitted by, (check one)
____ Individual Owner ____ Partnership ____ Corporation _____ Other Legal Name of Bidder ___________________________________________________________ Address of Bidder ______________________________________________________________ Tax ID# ______________________________________________________________________ Phone Number______________________________ Fax Number ________________________ California State Contractor’s License #: Expiration Date:

DIR Public Works Contractor Registration #:

By: ______________________________________________ Date _____________________ Signature
Print or Type Name: ____________________________________________________________ Title

City of Ukiah RFB- E39169 Street Striping 2022
9 WORK PERFORMANCE DATA
HISTORY AND CAPABILITY: Provide the name, locations and a narrative statement on the work performed.

WORK PERFORMED

1. COMPANY NAME: ______________________________________

CONTACT:____________________________________________ _______________________________________

ADDRESS:____________________________________________ _______________________________________

PHONE________________________________________________ ________________________________________

2. COMPANY NAME: ______________________________________ _______________________________________

CONTACT_____________________________________________ _______________________________________

ADDRESS_____________________________________________ _______________________________________

PHONE:________________________________________________ _______________________________________

3. COMPANY NAME: _____________________________________ _______________________________________

CONTACT:____________________________________________ _______________________________________

ADDRESS____________________________________________ _______________________________________

PHONE:______________________________________________ _______________________________________

4. COMPANY NAME: ____________________________________ _______________________________________ CONTACT:___________________________________________ _______________________________________

ADDRESS:___________________________________________ _______________________________________

PHONE:_____________________________________________ _______________________________________

5. COMPANY NAME: ____________________________________ _______________________________________ CONTACT:___________________________________________ _______________________________________

ADDRESS:___________________________________________ _______________________________________

PHONE:_____________________________________________ _______________________________________

City of Ukiah RFB- E39169 Street Striping 2022
10 SUBCONTRACTORS: The bidder must submit a list of subcontractors whom he proposes to employ on the work with proper firm name and business address of each.
1)Subcontractor’s Name Work to be performed
_____________________________________________________ _________________________________________________ _____________________________________________________ _________________________________________________ Address
_________________________________________________
City/State/Zip
____________________________________________________
Phone Number Fax Number
____________________________________________________ __________________________________________________ California State Contractor License # DIR Public Works Contractor Registration # 2)Subcontractor’s Name Work to be performed
___________________________________________________ _____________________________________________ ___________________________________________________ _____________________________________________ Address
_____________________________________________
City/State/Zip
__________________________________________________ ____________________________________________ Phone Number Fax Number
____________________________________________________ __________________________________________________ California State Contractor License # DIR Public Works Contractor Registration # 3)Subcontractor’s Name Work to be performed
__________________________________________________ _____________________________________________ ___________________________________________________ _____________________________________________ Address
__________________________________________________ _____________________________________________ City/State/Zip
___________________________________________________ _____________________________________________ Phone Number Fax Number
____________________________________________________ __________________________________________________ California State Contractor License # DIR Public Works Contractor Registration #

City of Ukiah RFB- E39169 Street Striping 2022
11 BIDDER/CONTRACTOR STATEMENT

REGARDING INSURANCE COVERAGE
(Submit with Bid)
PROPOSER/CONTRACTOR HEREBY CERTIFIES that he/she has reviewed and understands the insurance coverage requirements specified in the Request for Bid for:

E39169 Street Striping 2022
Should we/I be awarded the contract, we/I certify that we/I can meet the specified requirements for insurance, including insurance coverage of the subcontractors, and agree to name the City of Ukiah as Additional Insured for the work specified. And we/I will comply with the provisions of Section 3700 of the Labor Code, which require every employer to be insured against liability for worker’s compensation or to undertake self-insurance in accordance with the provisions of that code, before commencing the performance of the work specified.

Please Print (Person, Firm, or Corporation)

Signature of Authorized Representative

Please Print (Name & Title of Authorized Representative)

Date Phone Number

Item # Item Description Quantity Unit of Measure Unit Price Item Total Unit Price Item Total it Price Item Total 1 BROKEN 4" PAINTED TRAFFIC STRIPE ‐ WHITE 5283 LF $0.12 $633.96 $0.18 $950.94 $0.22 $1,162.262 BROKEN 4" PAINTED TRAFFIC STRIPE ‐ YELLOW 63554 LF $0.12 $7,626.48 $0.18 $11,439.72 $0.22 $13,981.88 3 SOLID 4" PAINTED TRAFFIC STRIPE ‐ WHITE 11520 LF $0.20 $2,304.00 $0.22 $2,534.40 $0.48 $5,529.604 SOLID 4" PAINTED TRAFFIC STRIPE ‐ YELLOW 11717 LF $0.20 $2,343.40 $0.22 $2,577.74 $0.48 $5,624.165 SOLID 8" PAINTED TRAFFIC STRIPE ‐ WHITE 3620 LF $0.50 $1,810.00 $0.80 $2,896.00 $0.78 $2,823.606 DOUBLE PAINTED TRAFFIC STRIPE ‐ YELLOW 23962 LF $0.50 $11,981.00 $0.35 $8,386.70 $0.95 $22,763.907

TWO WAY LEFT TURN PAINTED TRAFFIC
STRIPE ‐ YELLOW 3491 LF $0.75 $2,618.25 $0.35 $1,221.85 $1.80 $6,283.80 8 BIKE LANE 4" PAINTED TRAFFIC STRIPE ‐ WHITE 23460 LF $0.20 $4,692.00 $0.25 $5,865.00 $0.48 $11,260.80 9 BIKE LANE 6" PAINTED TRAFFIC
STRIPE ‐ WHITE 37381 LF $0.27 $10,092.87 $0.27 $10,092.87 $0.58 $21,680.98 10 NO PASSING 4" PAINTED TRAFFIC STRIPE ‐ YELLOW 454 LF $1.00 $454.00 $0.50 $227.00 $0.70 $317.80 Total $44,555.96 $46,192.22 $91,428.78
Listed Subs None None NoneBase Bid
1805 E Beamer Street PO Box 1721 3489 Luyung DrWoodland, CA 95776 Lodi, CA 95241 Rancho Cordova, CA Street Striping 2022
City of UkiahBid Opening:2022‐07‐14 Chrisp Company Traffic Limited Central Striping

Agenda Item No: 7.c.

MEETING DATE/TIME: 8/3/2022
ITEM NO: 2022-1860

AGENDA SUMMARY REPORT
SUBJECT: Adoption of Resolution Appointing Kali Gordon to the Design Review Board.

DEPARTMENT: City Clerk PREPARED BY: Kristine Lawler, City Clerk PRESENTER: Kristine Lawler, City Clerk
ATTACHMENTS:

1. City Code Section 1161

2. Resolution 2021-52

3. Application - Kali Gordon

4. Proposed Resolution
Summary: The City Council will consider adopting a resolution appointing Kali Gordon to the Design Review Board.

Background: The Design Review Board reviews proposed site development permit applications, planned development applications, and precise development plans. They work with Staff and the applicants to ensure design consistency with the Ukiah General Plan, Zoning Code, and Design Review Guidelines. They make recommendations concerning architecture, site design layout, landscaping, parking, signage, exterior lighting, and other aspects of urban design to City Staff, Zoning Administrator, Planning Commission, and City Council as appropriate.

Pursuant to City Code Section 1161(Attachment 1) and Resolution 2021-52 (Attachment 2), members of the Design Review Board are appointed by a majority of the City Council, to serve at the will of the Council for up to a term of four years. There is one vacancy on the Design Review Board, which has been noticed since July 2, 2021, online, in the glass case in front of Civic Hall, in the Public View Binder, and at the County Library.

Discussion: The City Clerk’s office has received an application from Kali Gordon (Attachment 3), who meets the required qualifications, with no other applications having been received. Staff’s recommendation, which is supported by the Community Development department, is to adopt the resolution (Attachment 4) appointing Kali Gordon to the Design Review Board, with a term ending August 3, 2026. If Council feels a discussion is warranted per Resolution 2021-52, this item may be pulled from the Consent Calendar.

Recommended Action: Adopt resolution appointing Kali Gordon to the ‘Community at Large’ position on the Design Review Board, term ending August 3, 2026.

BUDGET AMENDMENT REQUIRED: N/A
CURRENT BUDGET AMOUNT: N/A
PROPOSED BUDGET AMOUNT: N/A
FINANCING SOURCE: N/A
PREVIOUS CONTRACT/PURCHASE ORDER NO.: N/A
COORDINATED WITH: N/A

ATTACHMENT 1

RESOLUTION NO. 2021-52

RESOLUTION OF THE CITY COUNCIL OF THE CITY OF UKIAH ESTABLISHING A POLICY FOR

THE IN-MEETING PROCESS FOR NOMINATING AND APPOINTING NEW MEMBERS (WHEN MORE

THAN ONE CANDIDATE) TO THE CITY COUNCIL ( FOR MID-TERM VACANCIES THAT COUNCIL OPTS TO APPOINT), PLANNING COMMISSION, AND DESIGN REVIEW BOARD.

WHEREAS, the City Council and Staff have determined that it would be helpful to have written clarification for the in-meeting process of nominating and appointing new members (when more than one candidate) to the City Council ( for mid-term vacancies that Council opts to appoint), Planning Commission, and Design Review Board.

NOW, THEREFORE BE IT RESOLVED that the Council of the City of Ukiah adopts the following method for the in-meeting process of nominating and appointing new members (when more than one candidate) to the City Council ( for mid-term vacancies that Council opts to appoint), Planning Commission, and Design Review Board:

Applicant Statements:

1. Each applicant will fill out an application/ questionnaire that will be published with the agenda, and which the councilmembers can review ahead of the meeting.

2. At the meeting, the candidates will give a three-minute statement of why they want to serve in the position.

3. Council can ask questions for specific candidates.

4. Public comment followed by additional Council questions if any.

Discussion:

5. Councilmembers will discuss the pros, cons, and preferences of the various candidates (nominations are not accepted).

Ranking:

6. Councilmembers will fill out a ranking form (Exhibit A to the Resolution – Attachment 1). The forms will be submitted to the clerk, and a short recess will be held while the clerk calculates the results using the Ranking Form Calculator Sheet (Exhibit B to the Resolution - Attachment 1 – provides details of how the ranking is calculated). Following the recess, the clerk will present the results of the ranking forms. If there is a tie resulting in three or more candidates with top ranks*, the process will be repeated with the top-ranking candidates until there are only two top-ranking candidates.

The lowest score equals the top rank.

7. With the top two candidates, a final run-off vote will be completed with a blind vote using ballots that will be distributed and returned to the Clerk, where each Councilmember may vote for one candidate. The Clerk will tabulate and announce the results. The successful candidate is the one receiving the most votes.

If there is more than one seat being filled, then the process starts over from Step #6, with the remaining candidates.

ATTACHMENT 2

Appointment:

8. Once a successful candidate (or candidates, if there is more than one) has been selected, the Mayor may call for a motion, second, and roll call vote to adopt the resolution making the appointment(s).

If there is only one candidate, then a simple discussion and adoption of a resolution is all that would be necessary to make the appointment.

PASSED, ADOPTED and APPROVED this 20th day of October, 2021 by the following vote on roll call vote:

AYES:

NOES:

ABSTAIN:

ABSENT:

Juan V. Orozco, Mayor
ATTEST:

Kristine Lawler, City Clerk
Councilmembers Duenas, Brown, and Mayor Orozco
None
None
Councilmembers Crane and Rodin

RANKING FORM
Councilmember Name:

Candidate #1
Candidate #2
Candidate #3
Candidate #4
Candidate #5
Candidate #6
Candidate #7
Candidate #8
Candidate #9
Candidate #10
Exhibit A

ATTACHMENT 3

RESOLUTION NO. 2022-
RESOLUTION OF THE CITY COUNCIL OF THE CITY OF UKIAH APPOINTING Kali Gordon TO

THE DESIGN REVIEW BOARD
WHEREAS, pursuant to City Code Section 1161(Attachment 1) and Resolution 2021-52 (Attachment 2), members of the Design Review Board are appointed by a majority of the City Council, to serve at the will of the Council for up to a term of four years; and WHEREAS, there is one vacancy on the Design Review Board, which has been noticed since July 2, 2021, online, in the glass case in front of Civic Hall, in the Public View Binder, and at the County Library; and
WHEREAS, the City Clerk’s office has received an application from Kali Gordon who meets the required qualifications, with no other applications having been received.

NOW, THEREFORE, BE IT RESOLVED, that the Ukiah City Council does hereby appoint the following persons and terms:

BOARD/

COMMISSION

NAME POSITION TERM ENDING
Design Review Board Kali Gordon Community at Large 8/3/2026 PASSED AND ADOPTED this 3rd day of August, 2022, by the following roll call vote:

AYES:

NOES:

ABSTAIN:

ABSENT:
_______________________________
Jim O. Brown, Mayor
ATTEST:
__________________________________
Kristine Lawler, City Clerk
ATTACHMENT 4

Agenda Item No: 7.d.

MEETING DATE/TIME: 8/3/2022
ITEM NO: 2022-1868

AGENDA SUMMARY REPORT
SUBJECT: Report to Council Regarding the 2022 Conflict of Interest Code Biennial Notice, and Direct the City Clerk to Amend the Conflict of Interest Code per Guidelines Provided by the Fair Political Practices Commission (FPPC), Conduct a 45-day Public Notice Period, and If Necessary, Schedule a Public Hearing to Consider Adoption of the Amended Conflict of Interest Code.

DEPARTMENT: City Clerk PREPARED BY: Kristine Lawler, City Clerk PRESENTER: Kristine Lawler, City Clerk
ATTACHMENTS:

1. 2022 Local Agency Biennial Notice
Summary: The City Council will receive the 2022 Conflict of Interest Code Biennial Notice, as directed by the Fair Political Practices Commission (FPPC), and consider directing the City Clerk to amend the Conflict of Interest Code per the FPPC guidelines, seek review from the City Attorney, open a 45-day public comment period, and if necessary, schedule a public hearing for consideration of adopting the amended Conflict of Interest Code.

Background: The Political Reform Act requires every local government agency to review its Conflict of Interest Code biennially. A Conflict of Interest Code tells public officials, governmental employees, and consultants what financial interests they must disclose on their Statement of Economic Interests (a.k.a. Form 700).

Discussion: The FPPC has prepared a 2022 Local Agency Biennial Notice form (Attachment 1) for local agencies to complete and submit to the code reviewing body, which in this case is the Ukiah City Council, by October 3, 2022.

Staff has determined that the following substantial amendments are necessary:
- Add new positions
- Revise/update the titles of existing positions
- Delete titles of positions that have been abolished and/or positions that no longer make or participate in making governmental decisions
The FPPC has provided guidelines to help determine what positions and interests are required on the Conflict of Interest Code, and which are not necessary. The City Clerk will work with Human Resources and use these guidelines to modify the existing list, then – per FPPC guidelines – provide a 45-day public comment period for the suggested amendments, and if requested by an employee or public member, schedule a public hearing and/or bring the amended Conflict of Interest Code to the Council for adoption.

The recommended action for this agenda item is to receive the 2022 Conflict of Interest Code Biennial Notice and direct City Clerk to:
- Amend the Conflict of Interest Code per the FPPC guidelines; - Seek review from the City Attorney
- Provide a 45-day public comment period for the suggested changes

- If requested, schedule a public hearing and/or bring the amended Conflict of Interest Code to the Council for adoption
Recommended Action: Receive the 2022 Conflict of Interest Code Biennial Notice and direct City Clerk to amend the Conflict of Interest Code per the FPPC guidelines, seek review from the City Attorney, provide a 45-day public comment period for the suggested modifications, and if necessary, schedule a public hearing to consider adoption of the amended Conflict of Interest Code.

BUDGET AMENDMENT REQUIRED: N/A
CURRENT BUDGET AMOUNT: N/A
PROPOSED BUDGET AMOUNT: N/A
FINANCING SOURCE: N/A
PREVIOUS CONTRACT/PURCHASE ORDER NO.: N/A
COORDINATED WITH: N/A

www.fppc.ca.gov
FPPC Advice: [email protected] (866.275.3772)

2022 Local Agency Biennial Notice
Name of Agency:

Mailing Address:

Contact Person: Phone No.

Email: Alternate Email:

Accurate disclosure is essential to monitor whether officials have conflicts of interest and to help ensure public trust in government. The biennial review examines current programs to ensure that the agency’s code includes disclosure by those agency officials who make or participate in making governmental decisions.

This agency has reviewed its conflict of interest code and has determined that (check one BOX):
 An amendment is required. The following amendments are necessary:
(Check all that apply.)
 Include new positions
 Revise disclosure categories
 Revise the titles of existing positions
 Delete titles of positions that have been abolished and/or positions that no longer make or participate in making governmental decisions
 Other (describe)
 The code is currently under review by the code reviewing body.  No amendment is required. (If your code is over five years old, amendments may be necessary.)
Verification (to be completed if no amendment is required) This agency’s code accurately designates all positions that make or participate in the making of governmental decisions. The disclosure assigned to those positions accurately requires that all investments, business positions, interests in real property, and sources of income that may foreseeably be affected materially by the decisions made by those holding designated positions are reported. The code includes all other provisions required by Government Code Section 87302.
__________________________________________ _________________________ Signature of Chief Executive Officer Date
All agencies must complete and return this notice regardless of how recently your code was approved or amended. Please return this notice no later than October 3, 2022, or by the date specified by your agency, if earlier, to:
(PLACE RETURN ADDRESS OF CODE REVIEWING BODY HERE)
PLEASE DO NOT RETURN THIS FORM TO THE FPPC.

City of Ukiah
300 Seminary Avenue, Ukiah, CA 95482
Kristine Lawler 707-463-6217
[email protected] [email protected]
✔
■
■
■
ATTACHMENT 1

Agenda Item No: 7.e.

MEETING DATE/TIME: 8/3/2022
ITEM NO: 2022-1869

AGENDA SUMMARY REPORT
SUBJECT: Approval of Contract with Stone Creek Environmental Consulting in the Amount of $33,000 for Engineering Services Related to the Municipal Separate Storm Sewer Systems Permit Issued by North Coast Regional Water Quality Control Board.

DEPARTMENT: Public Works PREPARED BY: Seth Strader, Administrative Analyst PRESENTER: Tim Eriksen, Director of Public Works
ATTACHMENTS:

1. 220430 Ukiah Proposal for 2022 2023
Summary: The City Council will consider awarding a professional services agreement to Stone Creek Environmental Consulting in the amount of $33,000 for engineering services related to the Municipal Separate Storm Sewer Systems Permit.

Background: Discharges of storm water and non-storm water from a Municipal Separate Storm Sewer System (MS4), particularly in an urbanized area, have a high potential to convey pollutants to receiving waters. The higher percentage of impervious area in an urbanized area correlates to a greater pollutant loading, resulting in turbid water discharges, nutrient enrichment, bacterial contamination, and toxic compounds. Pollutants of concern in these discharges in the Russian River Watershed include: heavy metals, indicator bacteria, nutrients, pesticides, petroleum hydrocarbons and trash.

Discussion: The City is designated as a Phase 1 Co-Permittee with other agencies regulated by the North Coast Regional Water Quality Control Board (Board). These agencies operate under a MS4 issued by the Board which requires specific monitoring and reporting tasks as well as the development of special studies in order to maintain permit compliance.

This permit has a five-year term in which these requirements must be met and submitted to the Board. The main requirements are as follows:

1. Critical Source Program

2. Development of Facility Prevention Plan

3. Municipal Staff Training

4. Development of a Sediment Reduction Plan

5. Annual Reporting Requirements to the Board.

In order to maintain compliance with the permit, Staff requested a proposal (Attachment 1) from Stone Creek Environmental Consulting for engineering and consulting services related to maintaining compliance with the permit. Stone Creek specializes in director regulatory compliance and training for multiple agencies in the North Coast and has experience in permitting requirements as a former member of the board. Stone Creek assisted in permitting during for the last two years and Staff is satisfied with their performance.

Recommended Action: Award professional services agreement to Stone Creek Environmental Consulting in the amount of $33,000 for Engineering Services related to the City’s Stormwater Permit.

BUDGET AMENDMENT REQUIRED: NO

CURRENT BUDGET AMOUNT: 10024224.52100: $38,000
PROPOSED BUDGET AMOUNT: 10024224.52100: $33,000
FINANCING SOURCE: N/A
PREVIOUS CONTRACT/PURCHASE ORDER NO.: 2122-078
COORDINATED WITH: Tim Eriksen, Director of Public Works and Andrew Stricklin, Associate Engineer

Stone Creek Environmental Consulting
416 Aviation Blvd, Suite H
Santa Rosa, CA 95403
[email protected]
707-318-9415
1 www.consultingstonecreek.com
April 30, 2022
Mr. Tim Eriksen
City of Ukiah
300 Seminary Avenue
Ukiah, CA 95482
Subject: Proposal for Storm Water Support Services, 2022/2023 Fiscal Year Dear Mr. Eriksen:

Stone Creek Environmental Consulting (Stone Creek) is pleased to present this proposal and fee estimate to provide stormwater support services to the City of Ukiah (City). Colleen Hunt, owner, is a Certified Professional in Municipal Stormwater Management and brings direct regulatory compliance experience with municipal stormwater permit requirements. She has worked directly with dozens of municipal stormwater Permittees during her time with the Regional Water Board and for the past four years as a consultant. Colleen has been providing stormwater assistance to the City since 2020.

The City is subject to requirements of the Regional Water Board’s Waste Discharge Requirements Order No. R1-2015-0030, National Pollutant Discharge Elimination System (NPDES) Permit No. CA0025054 for Discharges from the Municipal Separate Storm Sewer System (MS4) (Permit). The Permit became effective January 6, 2016 and expired on January 5, 2021. The Permit is administratively extended until the Regional Water Board renews the Permit. Until a new Permit is adopted, the City must continue implementing the requirements of the expired Permit.

Tasks in this proposal include assisting the City with the ongoing requirements of the expired Permit and program management elements as outlined here:
 Sediment Reduction Plan Implementation
 Inspections
 Inter Department Coordination
 Municipal Staff Training
 Annual Reporting
 Program Management
ATTACHMENT 1

Stone Creek Environmental Consulting
416 Aviation Blvd, Suite H
Santa Rosa, CA 95403
[email protected]
707-318-9415
2 www.consultingstonecreek.com
Scope of Work
Task 1. Sediment Reduction Plan Implementation
Section I of the Permit requires the City to develop and implement a Sediment Reduction Plan to assess effectiveness of Best Management Practices (BMPs) used to control sediment in stormwater runoff. The City developed a workplan for this requirement that was approved by the Regional Water Board. The workplan divided the scope of work into four phases:
 Phase I Source Investigation Research
 Phase II Sediment Source Field Investigation
 Phase III Sediment Source BMP Plan
 Phase IV Progress Reporting
The City has completed Phases I and II and is in the process of implementing Phase III. The City will also have to submit a progress report with the 2021/2022 Annual Report (Phase IV). This task is to assist the City with the continued implementation of Phase III and drafting the progress report.

Requirements for Phase III includes implementing BMPs identified in Phase II to control significant sediment sources and studying the effectiveness of both new and existing BMPs.

Tasks identified in the Phase III workplan for the 2022/2023 fiscal year include drafting a workplan to complete outfall inspections and assessments to better understand the implications of sediment from aging infrastructure. The workplan will be developed to define the scope of work, inspection methodology and assessment criteria. Stone Creek will provide a draft workplan within 90 days of the executed contract. The final workplan will need to be submitted to the Regional Water Board for review and approval.

This task will also include conducting the ongoing effectiveness assessment of BMPs used to control the discharge of sediment in stormwater runoff. This effort will continue using the 2NFORM platform to track effectiveness by calculating the water quality benefit associated with sediment load reduction. As part of this task, Stone Creek will populate the platform with new BMPs and manage the platform. This includes entering BMPs used to control sediment discharges into the platform, maintaining information, and running load reduction calculations for reporting purposes. Utilizing the data generated in the platform, Stone Creek will also develop the effectiveness assessment report for the sediment reduction plan due to the Regional Water Board by October 15, 2023.

The fee estimate includes the annual user fee to use the platform for one year. Based on our experience, this methodology is the most cost-effective approach, even with the need to pay a user fee. The user fee includes the ability to incorporate other program areas into the platform, including tracking Low Impact Development (LID) inspections, storm drain maintenance needs, construction site inspections, industrial and commercial inspections and trash plan management.

Stone Creek Environmental Consulting
416 Aviation Blvd, Suite H
Santa Rosa, CA 95403
[email protected]
707-318-9415
3 www.consultingstonecreek.com
Task 1 Deliverables: Effectiveness Assessment Report. Load reduction report for the 2022/2023 Annual Report.

Task 2. Inspections
The City of Ukiah is required to conduct several stormwater inspections throughout the year including:
 Active construction sites monthly between September and April  Low Impact Development installation inspections
 Low Impact Development maintenance inspections once every two years  Industrial and Commercial critical source facility inspections twice a permit term.

This task is reserved for assisting the City with conducting inspections as needed. As directed by the City, Stone Creek will conduct the requested inspection, keep a digital inspection record, convey deficiencies to responsible parties, coordinate enforcement actions with City staff, and conduct follow up inspections as warranted. This task assumes up to 80 hours during the fiscal year for assistance with inspections.

Task 2. Deliverable: Inspection Reports

Stone Creek Environmental Consulting
416 Aviation Blvd, Suite H
Santa Rosa, CA 95403
[email protected]
707-318-9415
4 www.consultingstonecreek.com
Task 3. Inter Department Coordination
Permit Section C.2.d. requires the City to inspect all restaurants, automotive service facilities, auto dismantlers, retail gasoline service stations, and nurseries and landscape material retailers, identified in the Permit as critical source facilities. Inspections are required twice during the fiveyear term of the Permit. However, the Permit allows the City to leverage inspection efforts of other agencies as to not duplicate similar efforts, as long as other agencies’ inspections include a stormwater component. Table 1 indicates the agencies that have responsibilities to inspect critical source facilities within the City:

Table 1. Critical Source Facilities Inspection
Facility Type Responsible Agency
Restaurants County of Mendocino Public Health Department Automotive Service Facilities County of Mendocino Environmental Health (CUPA)
Retail Gasoline Service Stations County of Mendocino Environmental Health (CUPA)
Auto Dismantlers County of Mendocino Environmental Health (CUPA)
Nurseries and Landscape Material
Retailers
None
Additionally, the Permit requires general coordination with all departments with responsibilities for conducting stormwater inspections, including annual meetings. Under this task, Stone Creek will assist the City with coordinating with applicable departments, set up an annual meeting, and confirm the inspection requirements for critical sources has been met.

Task 4. Municipal Staff Training
Section G.12. of the Permit requires the City to annually train staff whose interactions, jobs, and activities may affect stormwater quality. We will provide training on stormwater topics selected by the City. This may include illicit discharge, non-stormwater discharges, municipal activities BMP requirements, and/or integrated pest management. Training will be provided as a prerecorded video or in person as conditions allow.

Task 4. Deliverable: Stormwater training, including preparation of a PowerPoint presentation, training materials, and training documentation records.

Stone Creek Environmental Consulting
416 Aviation Blvd, Suite H
Santa Rosa, CA 95403
[email protected]
707-318-9415
5 www.consultingstonecreek.com
Task 5. Annual Report
The Annual Report for the 2021/2022 reporting period is due October 15, 2022. At the beginning of the new Permit term, the Regional Water Board developed an annual report template for Permittee use. The template provides a streamlined method for annual reporting. We will assist the City with populating the template and gathering information needed for reporting. The City will need to complete sections of the report with data that is not readily available to us to adequately complete the report. The City will be responsible for submitting the final report to the Regional Water Board.

Task 5. Deliverable: Draft Annual Report
Task 6. Program Management
This task will include general project management tasks needed to manage the contract properly and effectively. Tasks will include a project schedule, managing budget, monthly invoicing, and routine communications with the City, including in-person meetings to report progress and discuss key recommendations and decisions.

Task 6. Deliverable: Invoices
Fee Estimate and Level of Effort
The Scope of Work will be conducted as described above for an estimated not-to-exceed budget of $33,000. The estimated fee and associated level of effort are summarized below.

Task Level of Effort,
hours
Estimated Fee, $
Task 1. Sediment Reduction Plan 25 9,750
Task 2. Inspections 80 14,800
Task 3. Inter Department Coordination 10 1,850
Task 4. Municipal Staff Training 12 2,200
Task 5. Annual Report 12 2,200
Task 6. Project Management 12 2,200
Total 151 33,000

Stone Creek Environmental Consulting
416 Aviation Blvd, Suite H
Santa Rosa, CA 95403
[email protected]
707-318-9415
6 www.consultingstonecreek.com
Billing rates for the estimate are provided below. Rates will be valid for the duration of the contract:

Technical Professional Services I $165 per hour
Technical Professional Services II $185 per hour
GIS/Mapping $175 per hour
Intern Assistance $85 per hour
Administrative Assistance/Travel $75 per hour
Quality Assurance Review $205 per hour
Direct Costs Cost + 10%
Mileage Standard Federal Rate
Any services not included in this Scope of Work will be performed only after receiving written authorization and a corresponding budget augmentation from the City. I am looking forward to working with you on this important work. Please feel free to contact me at 707-318-9415 or [email protected] if you have any questions or would like to discuss this proposal further.

Sincerely,
Colleen Hunt, CPMSM #343
Professional Consultant

Agenda Item No: 7.f.

MEETING DATE/TIME: 8/3/2022
ITEM NO: 2022-1870

AGENDA SUMMARY REPORT
SUBJECT: Report of an Agreement with Environmental Services Associates for Further Soil Sampling as Required to Fulfill CEQA Documents for the Riverside Park Regeneration Project.

DEPARTMENT: Community Services PREPARED BY: Neil Davis, Community Services Director PRESENTER: Neil Davis, Community Services Director
ATTACHMENTS:

1. Soil Sampling Report

2. Amendment 1 - C#2122-203 - ESA Riverside Park Soil Sampling_ESA signed

3. SoilSamplingReport-BothEventsAsAttachmnet 3
Summary: Council will receive a report regarding an agreement with Environmental Services Associates for further soil sampling as required to fulfill CEQA documents for the Riverside Park Regeneration Project.

Background: In January of 2018, the City of Ukiah received a California Urban Rivers Grant from the California Natural Resources Agency (CNRA) in the amount of $1,113,700 for the Riverside Park Regeneration Project. The project is designed to (1) restore the site to be a productive, diverse and multibenefit flood plain, (2) remove approximately 2,500 cubic yards of debris including asphalt and concrete, (3) create a wide, multi-level system of wet meadows, spring wetlands, and spring pools, and (4) develop trails with interpretive signs. In early 2019, Melton Design Group was awarded the contract to provide preconstruction design and permitting.

The design is nearing completion. However, in the final stages of CEQA preparation, a need for further soil testing was identified. An existing contract with Environmental Services Associate (CONTRACT COU No. 2122-203) in the amount of $8,400 provided initial soil sampling and testing. The results are attached (Attachment 1). The need for additional testing has delayed the project and the CNRA has granted an extension with project construction scheduled for the Spring of 2023 and completion now scheduled for May of 2024.

Discussion: For decades, the Riverside Park location was used for activities that had contaminating potential.

According to a 1999 Phase I environmental site assessment, the project site was previously used for sewage treatment ponds from the 1930s to 1958. A trap shooting range (Ukiah Rod & Gun Club) from at least 1968 to 1978 and a former police shooting range from 1968 to 1978 were previously located in the southern portion of the project site. A large pit in the central portion of the property was used to mine gravel from approximately 1981 until 1986. Since 1986, the pit area has been filled in with concrete, asphalt, street sweepings, and brush by a variety of agencies within the City and County (Public Works, Utilities, and County Roads). In addition, other areas of the project site have been used by the City for debris. Unauthorized dumping of household debris has also occurred on the central and southern portions of the project site.

Despite these potentially contaminating activities, it has now been decades since the site was used for these purposes. Over these decades, the associated contaminants from these activities would be expected to have naturally broken down to non-harmful levels. Out of an abundance of caution, soil sampling was suggested as a hypervigilant approach. Unexpectedly, soil testing detected low levels of chlordane and DDT (Attachment 1) and triggered a need for additional sampling and testing to determine the geographic limits of the contamination. ESA provided an estimate and scope of work for the additional testing. In an effort to keep the

project moving forward, staff approved the change order to allow the soil sampling to be completed. The contract Amendment No 1 requiring an additional $8,352 is attached (Attachment 2). The additional testing provided definitive results and will allow for the completion of CEQA documents. With this additional information, Melton Design Group staff will be able to determine the quantity of soil that will need to be removed from the site and complete preconstruction and permitting documents. The final soil sampling results are included as attachment 3.

Recommended Action: Receive a report regarding an agreement with Environmental Services Associates for soil sampling as required to fulfill CEQA documents for the Riverside Park Regeneration Project.

BUDGET AMENDMENT REQUIRED: No
CURRENT BUDGET AMOUNT: 10022100.52100: $16,572
PROPOSED BUDGET AMOUNT: N/A
FINANCING SOURCE: N/A
PREVIOUS CONTRACT/PURCHASE ORDER NO.: COU No. 2122-203
COORDINATED WITH: N/A

April 14, 2022
Ms. Michelle Irace, Planning Manager
Department of Community Development
300 Seminary Avenue, Ukiah, CA 95482
Sent via email: [email protected]
Subject: Draft Soil Sampling Results Report
Proposed Ukiah Riverside Park
Ukiah, California
Dear Ms. Irace:

Environmental Science Associates (ESA) conducted a soil investigation at the proposed Ukiah Riverside Park in Ukiah, California, on behalf of the City of Ukiah and in accordance with our proposal dated March 2, 2022. The property is predominantly undeveloped land that the City is considering developing as a park with wetlands. The purpose of the soil sampling and analysis is to inform the project design.

Sampling and Laboratory Analysis
According to a 1999 Phase I environmental site assessment, the property was previously used for sewage treatment ponds from the 1930s to 1958, a trap shooting range (Ukiah Rod & Gun Club) from at least 1968 to 1978, and a former police shooting range from 1968 to 1978 (Dannatt 1999). A large pit in the central portion of the property was used to mine gravel from approximately 1981 until 1986. Since 1986, the pit area has been filled in with concrete, asphalt, street sweepings, and brush by a variety of agencies within the City and County (Public Works, Utilities, and County Roads). In addition, unauthorized dumping of household debris has also occurred on the southern portion of the property.

Using the information acquired from the 1999 Phase I assessment, historical aerial photographs, and topographic maps, ESA collected and chemically analyzed four shallow soil samples on March 23, 2022, at the locations show on Figure 1. Samples S-1, S-2, and S-3 are located within the footprint of the former sewage treatment ponds. Sample S-4 is located in the area of the former trap shooting range and former police shooting range.

The samples were collected at about 6 inches below the ground surface using a shovel and trowel. The soil samples were sealed in their sampling containers, labeled with a unique identification number, placed in an ice chest with ice for preservation, and delivered on the same day to McCampbell Analytical Laboratory, a statecertified analytical laboratory, along with chain-of-custody documentation. The soil samples were analyzed for the following chemicals using the cited methods:
 Total petroleum hydrocarbons (TPH) as gasoline, diesel, and motor oil by EPA Method 8015Bm  Volatile organic compounds (VOCs) by EPA Method 8260B  Semivolatile organic compounds (SVOCs) by EPA Method 8270C  Organochlorine pesticides and polychlorinated biphenyls (PCBs) by EPA Method 8081A/8082  CAM 17 metals (antimony, arsenic, barium, beryllium, cadmium, cobalt, chromium, copper, lead, total mercury, molybdenum, nickel, selenium, silver, thallium, vanadium, and zinc) by EPA Method 6020

April 14, 2022

Draft Soil Sampling Results Report
Analytical Results and Screening Criteria
The laboratory analytical report is provided in Appendix A. The chemical results are tabulated on Tables 1, 2, and 3. Only those chemicals with at least one detection above laboratory detection limits are listed; chemicals with no results above laboratory detections limits are not listed and are concluded to be below all screening criteria.

The metals results are first compared to background levels from published studies to identify those chemicals that are present at naturally occurring background levels. General background levels are available from the Kearney Foundation: Background Concentrations of Trace and Major Elements in California Soils, dated March 1996.

Only those metals that exceed background levels are evaluated further.

All results are compared to the California Code of Regulations (CCR) Title 22 Total Threshold Limit Concentrations (TTLCs) to assess whether onsite soils would be considered a hazardous waste if disposed of at an offsite landfill permitted to accept the waste.

All results are compared to the 2019 Environmental Screening Levels (ESLs) developed by the San Francisco Bay Regional Water Quality Control Board (RWQCB 2019). ESLs are screening levels used by regulatory agencies throughout the state to assess whether further investigation and possibly cleanup is needed at sites where hazardous materials are suspected to have been spilled. ESLs are risk-based levels based on both human health and ecological habitat, which can provide comparative guidance as to whether a given chemical is present in soil at levels that might pose risks to construction workers, the public, or the environment.

All results are compared to the 2000 RWQCB Beneficial Reuse of Dredged Materials: Sediment Screening and Testing Guidelines, dated May 2000. Beneficial reuse screening criteria are ecological acceptance criteria used by the San Francisco RWQCB to assess whether fill would be acceptable for use in restoring wetlands and levees on the margins of San Francisco Bay. The screening criteria include surface and foundation beneficial reuse screening criteria. Surface beneficial reuse screening criteria are more stringent and apply to the top 3 feet of materials. Foundation beneficial reuse screening criteria are less stringent and apply to material buried under 3 feet of surface beneficial reuse material. Although the Riverside Park project would not import fill materials, the screening criteria provide a useful comparison to assess whether the onsite materials would be acceptable in a wetlands environment.

Discussion
Hazardous Waste Levels
None of the reported concentrations of chemicals in soil exceeded their respective TTLCs, for those chemicals that have listed TTLC values. Based on the analytical results, the soil would not be considered hazardous waste and could be accepted at any Class III non-hazardous waste landfill, if offsite disposal is considered. Tables 1, 2, and 3 provide the comparison of chemical results to TTLCs.

April 14, 2022

Draft Soil Sampling Results Report
Volatile and Semivolatile Organic Compounds, and Petroleum Hydrocarbons The results for volatile and semivolatile organic compounds, and petroleum hydrocarbons are tabulated on Table 1. None of the reported concentrations exceeded any screening criteria. These suites of chemicals are more volatile; the low to non-detectable results do not indicate a respiratory risk to construction workers or the public.

The low to non-detectable results for these chemicals also indicate no risk to the environment.

Metals
The results for metals are tabulated on Table 2. Lead and selenium were the only metals detected above background levels and only at the location of Sample S-2. The concentration of selenium in Sample S-2 did not exceed the ESL or surface or foundation beneficial reuse screening criteria, indicating that the soil in this location does not pose a risk to construction workers, the public, or the environment relative to selenium.

The concentration of lead at the location of Sample S-2 exceeded both the ESL and the surface beneficial reuse criteria. If the soil at this location were excavated and mixed with soil from the rest of the property during grading, the average concentration would be 63.25 milligrams per kilogram (mg/kg), which would still exceed both the ESL and the surface beneficial reuse criteria. From the perspective of beneficial reuse and protection of the environment, the soil at the location of Sample S-2 would qualify for use as foundation material, meaning that if this area where covered with soil that meets surface beneficial reuse screening criteria, the covered soil would not be expected to pose a risk to people or the environment.

Organochlorine Pesticides and PCBs
The results for organochlorine pesticides and PCBs are tabulated on Table 3. PCBs were not detected above laboratory detection limits and are concluded to be below all screening criteria.

The pesticides chlordane (both a-chlordane and g-chlordane) and DDT and its degradation products of DDD and DDE the only organochlorine pesticides detected above laboratory detection limits and only at the locations of Samples S-1 and S-2.

The concentration of a-chlordane and g-chlordane at the location of Sample S-2 exceeded the ESL and both the surface and foundation beneficial reuse screening criteria. This indicates that soil in the area of Sample S-2 would pose a risk to construction workers, the public, and the environment.

To assess the average chlordane concentration that would result from grading and mixing soil throughout the property, the average concentrations of all four samples are included on Table 3, using the reported detection limit for those results reported at below detection limits. If mixed through grading of the property, the average concentrations of a-chlordane and g-chlordane would be 0.0057 mg/kg and 0.0048 mg/kg, respectively. The average concentrations would be below the chlordane ESL of 0.00853 mg/kg, but would still exceed both the surface and foundation beneficial reuse screening criteria of 0.0023 mg/kg and 0.0048 mg/kg, respectively. This indicates that mixing soil from the area of Sample S-2 with soil throughout the property would still pose a risk to the environment.

April 14, 2022

Draft Soil Sampling Results Report
The concentrations of DDT at the locations of Samples S-1 and S-2 exceeded the ESL and both the surface and foundation beneficial reuse screening criteria. In addition, the average DDT concentration of 0.0448 mg/kg would still exceed the ESL of 0.0011 mg/kg and the surface beneficial reuse screening criteria of 0.007 mg/kg, but not the foundation beneficial reuse screening criteria of 0.0461 mg/kg. This indicates that soil in the area of Samples S-1 and S-2 would pose a risk to construction workers, the public, and the environment unless removed or covered with three feet of clean fill.

Summary
The areas around Samples S-3 and S-4 do not have chemical concentrations that would restrict the reuse of soil, indicating that soil in the southern portion of the property would have no restrictions on its use. The areas around Samples S-3 and S-4 in the northern portion of the property have chemical concentrations that would restrict the reuse of soil. The concentrations of chlordane and DDT in soil at the area around Sample S-2, and to a lesser extent Sample S-1, indicate soil in these local areas are unsuitable for use as a public park and as an aquatic habitat in their present condition. Options for addressing this condition could include the following:
 Move or dispose of the soil: If soil in the area around Samples S-1 and S-2 is to be graded and moved, the soil could be excavated and disposed of at any Class III non-hazardous waste landfill. Alternately, the excavated soil could be placed in other onsite areas, provided the soil is covered with three feet of clean soil to isolate the contaminated soil from the public and the environment. It is unknown whether chlordane and/or DDT are present in the surrounding or deeper soil at concentrations that exceed screening criteria. To further characterize the extent and depth in the area around Samples S-1 and S-2, additional samples could be collected and analyzed for organochlorine pesticides.  Cover the soil: Alternately, the project design could be modified to cover the area around Samples S-1 and S-2 with three feet of clean fill to isolate the contaminated soil from the public and the environment.

At your convenience, we can further discuss the results and explore options for addressing this condition. We thank you for the opportunity to provide environmental consulting assistance. If you have any questions or would like additional information, please contact us.

Sincerely,
Michael G. Burns, PG, CEG, CHG
Geologist

___________ 
0 200 Feet North
Proposed Ukiah Riverside Park 201801242.01
Source: Image adapted from GoogleEarth 2021 Figure 1 – Soil Sample Locations Russian
River
Proposed
Wetland
Areas
General
Extent of
Proposed
Park
Extent
Approximate
extent of former
treatment ponds

April 14, 2022

Draft Soil Sampling Results Report
TABLE 1

SUMMARY OF VOLATILE AND SEMIVOLATILE ORGANIC COMPOUNDS

AND PETROLEUM HYDROCARBONS SAMPLING RESULTS
Chemical S-1 S-2 S-3 S-4 TTLC ESLs
Surface
Reuse
Material
Foundation
Reuse
Material
Volatile organic compounds (VOCs)
Carbon Disulfide 0.0018 (J) < 0.0011 0.0019 (J) 0.0011 (J) ne ne ne ne 4-Isopropyl toluene < 0.0019 < 0.0019 < 0.0019 0.0026 (J) ne ne ne ne Semivolatile organic compounds (SVOCs)
Benzo (a) pyrene 0.032 (J) 0.071 (J) 0.0014 (J) 0.081 (J) ne 0.11 0.371 1.6 Benzo (b) fluoranthene < 0.052 < 0.10 0.0025 (J) < 0.10 (J) ne 1.1 0.371 ne Benzo (g.h.i) perylene 0.037 (J) 0.077 (J) 0.0022 (J) 0.090 (J) ne 2.5 0.310 ne Benzo (k) fluoranthene < 0.040 < 0.080 < 0.0010 0.043 (J) ne 2.8 0.258 ne Bis (2-ethylhexyl)
Phthalate 0.23 (J) < 0.38 0.0054 (J) < 0.19 ne 0.8 ne ne Chrysene < 0.027 < 0.054 0.0015 (J) 0.059 (J) ne 2.2 0.289 2.8 Dibenzofuran < 0.0037 < 0.0074 0.00028 (J) < 0.0037 ne ne ne ne Fluoranthene < 0.032 < 0.063 0.0013 (J) 0.10 ne 0.69 0.514 5.1 1-Methylnaphthalene < 0.013 < 0.026 0.0011 (J) < 0.013 ne ne 0.0121 ne 2-Methylnaphthalene < 0.019 < 0.038 0.0019 < 0.019 ne 0.88 ne ne Phenanthrene < 0.027 < 0.054 0.0042 0.041 (J) ne 7.8 0.237 1.5 Pyrene < 0.025 < 0.050 0.0014 0.072 (J) ne 45 0.665 2.6 Total petroleum hydrocarbons (TPH)
Gasoline < 0.55 < 0.55 < 0.55 < 0.55 ne 100 ne ne
Diesel 2.1 2.4 1.1 (J) 1.6 (J) ne 260 ne ne
Motor Oil 40 67 < 4.6 18 ne 1,600 ne ne
Notes:

All concentrations in milligrams per kilogram, approximately equivalent to parts per million (J) = Estimated concentration below the reporting limit ne = screening level not established for this chemical
TTLC = Total Threshold Limit Concentrations, California Code of Regulations, Title 22, Chapter 11, Article 3, 66261.24 ESL = San Francisco Bay Regional Water Quality Control Board Environmental Screening Level, 2019 version Beneficial reuse criteria from RWQCB Beneficial Reuse of Dredged Materials: Sediment Screening and Testing Guidelines, May 2000

April 14, 2022

Draft Soil Sampling Results Report
TABLE 2. SUMMARY OF METALS SAMPLING RESULTS
Chemical S-1 S-2 S-3 S-4 TTLC Background ESL
Surface
Reuse
Material
Foundation
Reuse
Material
Antimony 0.33 (J) 0.80 0.45 (J) 1.6 500 0.15 – 1.95 11 ne ne Arsenic 3.8 6.4 5.4 7.1 500 0.6 – 11 0.067 15.3 70
Barium 130 180 160 210 10,000 133 – 1,400 390 ne ne
Beryllium 0.38 (J) 0.37 (J) 0.46 (J) 0.62 75 0.25 – 2.7 5.0 ne ne Cadmium 0.12 (J) 0.58 0.11 (J) 0.15 (J) 100 0.05 – 1.7 1.9 0.33 9.6 Chromium 47 49 69 82 2,500 23 – 1,579 160 112 370
Cobalt 10 10 13 15 8,000 2.7 – 46.9 23
Copper 21 51 23 42 2,500 9.1 – 96.4 180 68.1 270
Lead 21 140 25 67 1,000 12.4 – 97.1 32 43.2 218
Mercury 0.077 0.12 < 0.038 0.14 20 0.10 – 0.90 13 0.43 0.70 Molybdenum 0.27 (J) 0.52 0.30 (J) 0.88 3,500 0.1 – 9.6 6.9 ne ne Nickel 63 60 87 110 2,000 9 – 509 86 112 120
Selenium < 0.32 0.58 < 0.32 < 0.32 100 0.015 – 0.43 2.5 0.64 ne Silver 0.14 (J) 0.19 (J) 0.15 (J) 0.51 500 0.80 25 0.58 3.7 Thallium < 0.072 < 0.072 <0.072 0.12 (J) 700 5.3 – 36.2 0.78 ne ne Vanadium 40 40 54 59 2,400 39 – 288 18 ne ne
Zinc 65 270 60 97 5,000 88 – 236 340 158 180
TABLE 3, SUMMARY OF ORGANOCHLORINE PESTICIDES AND PCBs SAMPLING RESULTS Chemical S-1 S-2 S-3 S-4
Average

TTLC ESL
Surface
Reuse
Material
Foundation
Reuse
Material
a-Chlordane < 0.0043 0.010 (J) < 0.0043 < 0.0043 0.0057 2.5 0.00853 0.0023 0.0048 g-Chlordane < 0.0034 0.0089 (J) < 0.0034 < 0.0034 0.0048 2.5 0.00853 0.0023 0.0048 DDD < 0.0041 0.0082 (J) < 0.0041 < 0.0041 0.0051 1.0 2.7   DDE 0.0047 (J) 0.065 0.00043 (J) < 0.0029 0.0182 1.0 0.33   DDT 0.0064 (J) 0.083 < 0.0039 < 0.0039 0.0243 1.0 0.0011   Sum of DDTs 0.0131 0.1562 0.00443 0.0055 0.0448   0.007 0.0461 PCBs < 0.32 < 0.32 < 0.32 < 0.32 0.32 50 0.23 0.0227 0.18 Notes for Tables 2 and 3:

All concentrations in milligrams per kilogram, approximately equivalent to parts per million Results in yellow highlight exceed one or more background or screening levels (J) = Estimated concentration below the reporting limit ne = not established
TTLC = Total Threshold Limit Concentrations, California Code of Regulations, Title 22, Chapter 11, Article 3, 66261.24 ESL = San Francisco Bay Regional Water Quality Control Board Environmental Screening Level, 2019 version Reuse criteria = RWQCB Beneficial Reuse of Dredged Materials: Sediment Screening and Testing Guidelines, May 2000 Averages use the detection limit for non-detect results

April 14, 2022

Draft Soil Sampling Results Report
Appendix A
Laboratory Analytical Report

WorkOrder:

Report Created for: Environmental Science Associates
2600 Capitol Avenue, Suite 200
Sacramento, CA 95816
Project Contact: Michael Burns
Project: D181242.01; Ukiah Riverside Park
Project P.O.: D181242.01
Project Received: 03/23/2022
Analytical Report reviewed & approved for release on 03/30/2022 by:

Yen Cao
2203E13
The report shall not be reproduced except in full, without the written approval of the laboratory. The analytical results relate only to the items tested. Results reported conform to the most current NELAP standards, where applicable, unless otherwise stated in a case narrative.

Analytical Report
1534 Willow Pass Rd. Pittsburg, CA 94565 ♦ TEL: (877) 252-9262 ♦ FAX: (925) 252-9269 ♦ www.mccampbell.com CA ELAP 1644 ♦ NELAP 4033 ORELAP
Project Manager
McCampbell Analytical, Inc.
"When Quality Counts"

Glossary of Terms & Qualifier Definitions
Client: Environmental Science Associates
Project: D181242.01; Ukiah Riverside Park
WorkOrder: 2203E13
McCampbell Analytical, Inc. 1534 Willow Pass Road, Pittsburg, CA 94565-1701 Toll Free Telephone: (877) 252-9262 / Fax: (925) 252-9269 http://www.mccampbell.com / E-mail: [email protected] "When Quality Counts" Glossary Abbreviation
%D Serial Dilution Percent Difference
95% Interval 95% Confident Interval
CPT Consumer Product Testing not NELAP Accredited
DF Dilution Factor
DI WET (DISTLC) Waste Extraction Test using DI water
DISS Dissolved (direct analysis of 0.45 µm filtered and acidified water sample) DLT Dilution Test (Serial Dilution)
DUP Duplicate
EDL Estimated Detection Limit
ERS External reference sample. Second source calibration verification.

ITEF International Toxicity Equivalence Factor
LCS Laboratory Control Sample
LQL Lowest Quantitation Level
MB Method Blank
MB % Rec % Recovery of Surrogate in Method Blank, if applicable MDL Method Detection Limit
ML Minimum Level of Quantitation
MS Matrix Spike
MSD Matrix Spike Duplicate
NA Not Applicable
ND Not detected at or above the indicated MDL or RL
NR Data Not Reported due to matrix interference or insufficient sample amount.

PDS Post Digestion Spike
PDSD Post Digestion Spike Duplicate
PF Prep Factor
RD Relative Difference
RL Reporting Limit (The RL is the lowest calibration standard in a multipoint calibration.) RPD Relative Percent Deviation
RRT Relative Retention Time
SPK Val Spike Value
SPKRef Val Spike Reference Value
SPLP Synthetic Precipitation Leachate Procedure
ST Sorbent Tube
TCLP Toxicity Characteristic Leachate Procedure
TEQ Toxicity Equivalents
TZA TimeZone Net Adjustment for sample collected outside of MAI's UTC.

WET (STLC) Waste Extraction Test (Soluble Threshold Limit Concentration)

Glossary of Terms & Qualifier Definitions
Client: Environmental Science Associates
Project: D181242.01; Ukiah Riverside Park
WorkOrder: 2203E13
McCampbell Analytical, Inc. 1534 Willow Pass Road, Pittsburg, CA 94565-1701 Toll Free Telephone: (877) 252-9262 / Fax: (925) 252-9269 http://www.mccampbell.com / E-mail: [email protected] "When Quality Counts" Analytical Qualifiers
J Result is less than the RL/ML but greater than the MDL. The reported concentration is an estimated value.

P Agreement between quantitative confirmation results exceed method recommended limits.

S Surrogate recovery outside accepted recovery limits.
a3 Sample diluted due to high organic content interfering with quantitative/or qualitative analysis. a4 Reporting limits raised due to the sample's matrix prohibiting a full volume extraction. c1 Surrogate recovery outside of the control limits due to the dilution of the sample. e2 Diesel range compounds are detected; no recognizable pattern. e7 Oil range compounds are detected.

Quality Control Qualifiers
F2 LCS/LCSD recovery and/or RPD/RSD is out of acceptance criteria.

F5 LCS/LCSD recovery is outside of acceptance limits; however, the data is acceptable based upon the TNI allowable marginal exceedances.

Analytical Report
McCampbell Analytical, Inc. 1534 Willow Pass Road, Pittsburg, CA 94565-1701 Toll Free Telephone: (877) 252-9262 / Fax: (925) 252-9269 http://www.mccampbell.com / E-mail: [email protected] "When Quality Counts" Client: Environmental Science Associates
Project: D181242.01; Ukiah Riverside Park
Date Received: 03/23/2022 12:14
Date Prepared: 03/23/2022
WorkOrder: 2203E13
Extraction Method: SW3550B
Analytical Method: SW8081A/8082
Unit: mg/kg
Organochlorine Pesticides + PCBs
S-1 2203E13-001A Soil 03/23/2022 09:00 GC23 03282242.d 241888 Analytes Result Qualifiers MDL RL DF Date Analyzed
Client ID Lab ID Matrix Date Collected Instrument Batch ID Aldrin ND 0.0039 0.010 10 03/28/2022 22:28
a-BHC ND 0.0049 0.010 10 03/28/2022 22:28
b-BHC ND 0.0027 0.010 10 03/28/2022 22:28
d-BHC ND 0.0033 0.010 10 03/28/2022 22:28
g-BHC ND 0.0033 0.010 10 03/28/2022 22:28
Chlordane (Technical) ND 0.12 0.25 10 03/28/2022 22:28
a-Chlordane ND 0.0043 0.010 10 03/28/2022 22:28
g-Chlordane ND 0.0034 0.010 10 03/28/2022 22:28
p,p-DDD ND 0.0041 0.010 10 03/28/2022 22:28
p,p-DDE 0.0047 J 0.0029 0.010 10 03/28/2022 22:28
p,p-DDT 0.0064 J 0.0039 0.010 10 03/28/2022 22:28
Dieldrin ND 0.0038 0.010 10 03/28/2022 22:28
Endosulfan I ND 0.0035 0.010 10 03/28/2022 22:28
Endosulfan II ND 0.0033 0.010 10 03/28/2022 22:28
Endosulfan sulfate ND 0.0040 0.010 10 03/28/2022 22:28
Endrin ND 0.0038 0.010 10 03/28/2022 22:28
Endrin aldehyde ND 0.0044 0.010 10 03/28/2022 22:28
Endrin ketone ND 0.0029 0.010 10 03/28/2022 22:28
Heptachlor ND 0.0030 0.010 10 03/28/2022 22:28
Heptachlor epoxide ND 0.0030 0.010 10 03/28/2022 22:28
Hexachlorobenzene ND 0.0070 0.10 10 03/28/2022 22:28
Hexachlorocyclopentadiene ND 0.0052 0.20 10 03/28/2022 22:28 Methoxychlor ND 0.0045 0.010 10 03/28/2022 22:28
Toxaphene ND 0.33 0.50 10 03/28/2022 22:28
Aroclor1016 ND 0.32 0.50 10 03/28/2022 22:28
Aroclor1221 ND 0.32 0.50 10 03/28/2022 22:28
Aroclor1232 ND 0.32 0.50 10 03/28/2022 22:28
Aroclor1242 ND 0.32 0.50 10 03/28/2022 22:28
Aroclor1248 ND 0.32 0.50 10 03/28/2022 22:28
Aroclor1254 ND 0.32 0.50 10 03/28/2022 22:28
Aroclor1260 ND 0.32 0.50 10 03/28/2022 22:28
PCBs, total ND NA 0.50 10 03/28/2022 22:28
Surrogates REC (%) Limits
Analyst(s): CN Analytical Comments: a3
Decachlorobiphenyl 96 60-130 03/28/2022 22:28
CA ELAP 1644 • NELAP 4033ORELAP
(Cont.)

Analytical Report
McCampbell Analytical, Inc. 1534 Willow Pass Road, Pittsburg, CA 94565-1701 Toll Free Telephone: (877) 252-9262 / Fax: (925) 252-9269 http://www.mccampbell.com / E-mail: [email protected] "When Quality Counts" Client: Environmental Science Associates
Project: D181242.01; Ukiah Riverside Park
Date Received: 03/23/2022 12:14
Date Prepared: 03/23/2022
WorkOrder: 2203E13
Extraction Method: SW3550B
Analytical Method: SW8081A/8082
Unit: mg/kg
Organochlorine Pesticides + PCBs
S-2 2203E13-002A Soil 03/23/2022 09:34 GC23 03282243.d 241888 Analytes Result Qualifiers MDL RL DF Date Analyzed
Client ID Lab ID Matrix Date Collected Instrument Batch ID Aldrin ND 0.0078 0.020 20 03/28/2022 22:43
a-BHC ND 0.0098 0.020 20 03/28/2022 22:43
b-BHC ND 0.0054 0.020 20 03/28/2022 22:43
d-BHC ND 0.0066 0.020 20 03/28/2022 22:43
g-BHC ND 0.0066 0.020 20 03/28/2022 22:43
Chlordane (Technical) ND 0.24 0.50 20 03/28/2022 22:43
a-Chlordane 0.010 J 0.0086 0.020 20 03/28/2022 22:43
g-Chlordane 0.0089 J 0.0068 0.020 20 03/28/2022 22:43
p,p-DDD 0.0082 J 0.0082 0.020 20 03/28/2022 22:43
p,p-DDE 0.065 0.0058 0.020 20 03/28/2022 22:43
p,p-DDT 0.083 0.0078 0.020 20 03/28/2022 22:43
Dieldrin ND 0.0076 0.020 20 03/28/2022 22:43
Endosulfan I ND 0.0070 0.020 20 03/28/2022 22:43
Endosulfan II ND 0.0066 0.020 20 03/28/2022 22:43
Endosulfan sulfate ND 0.0080 0.020 20 03/28/2022 22:43
Endrin ND 0.0076 0.020 20 03/28/2022 22:43
Endrin aldehyde ND 0.0088 0.020 20 03/28/2022 22:43
Endrin ketone ND 0.0058 0.020 20 03/28/2022 22:43
Heptachlor ND 0.0060 0.020 20 03/28/2022 22:43
Heptachlor epoxide ND 0.0060 0.020 20 03/28/2022 22:43
Hexachlorobenzene ND 0.014 0.20 20 03/28/2022 22:43
Hexachlorocyclopentadiene ND 0.010 0.40 20 03/28/2022 22:43 Methoxychlor ND 0.0090 0.020 20 03/28/2022 22:43
Toxaphene ND 0.66 1.0 20 03/28/2022 22:43
Aroclor1016 ND 0.64 1.0 20 03/28/2022 22:43
Aroclor1221 ND 0.64 1.0 20 03/28/2022 22:43
Aroclor1232 ND 0.64 1.0 20 03/28/2022 22:43
Aroclor1242 ND 0.64 1.0 20 03/28/2022 22:43
Aroclor1248 ND 0.64 1.0 20 03/28/2022 22:43
Aroclor1254 ND 0.64 1.0 20 03/28/2022 22:43
Aroclor1260 ND 0.64 1.0 20 03/28/2022 22:43
PCBs, total ND NA 1.0 20 03/28/2022 22:43
Surrogates REC (%) Limits
Analyst(s): CN Analytical Comments: a3
Decachlorobiphenyl 106 60-130 03/28/2022 22:43
CA ELAP 1644 • NELAP 4033ORELAP
(Cont.)

Analytical Report
McCampbell Analytical, Inc. 1534 Willow Pass Road, Pittsburg, CA 94565-1701 Toll Free Telephone: (877) 252-9262 / Fax: (925) 252-9269 http://www.mccampbell.com / E-mail: [email protected] "When Quality Counts" Client: Environmental Science Associates
Project: D181242.01; Ukiah Riverside Park
Date Received: 03/23/2022 12:14
Date Prepared: 03/23/2022
WorkOrder: 2203E13
Extraction Method: SW3550B
Analytical Method: SW8081A/8082
Unit: mg/kg
Organochlorine Pesticides + PCBs
S-3 2203E13-003A Soil 03/23/2022 09:13 GC22 03252225.D 241888 Analytes Result Qualifiers MDL RL DF Date Analyzed
Client ID Lab ID Matrix Date Collected Instrument Batch ID Aldrin ND 0.00039 0.0010 1 03/25/2022 15:15
a-BHC ND 0.00049 0.0010 1 03/25/2022 15:15
b-BHC ND 0.00027 0.0010 1 03/25/2022 15:15
d-BHC ND 0.00033 0.0010 1 03/25/2022 15:15
g-BHC ND 0.00033 0.0010 1 03/25/2022 15:15
Chlordane (Technical) ND 0.012 0.025 1 03/25/2022 15:15 a-Chlordane ND 0.00043 0.0010 1 03/25/2022 15:15
g-Chlordane ND 0.00034 0.0010 1 03/25/2022 15:15
p,p-DDD ND 0.00041 0.0010 1 03/25/2022 15:15
p,p-DDE 0.00043 JP 0.00029 0.0010 1 03/25/2022 15:15
p,p-DDT ND 0.00039 0.0010 1 03/25/2022 15:15
Dieldrin ND 0.00038 0.0010 1 03/25/2022 15:15
Endosulfan I ND 0.00035 0.0010 1 03/25/2022 15:15
Endosulfan II ND 0.00033 0.0010 1 03/25/2022 15:15
Endosulfan sulfate ND 0.00040 0.0010 1 03/25/2022 15:15 Endrin ND 0.00038 0.0010 1 03/25/2022 15:15
Endrin aldehyde ND 0.00044 0.0010 1 03/25/2022 15:15
Endrin ketone ND 0.00029 0.0010 1 03/25/2022 15:15
Heptachlor ND 0.00030 0.0010 1 03/25/2022 15:15
Heptachlor epoxide ND 0.00030 0.0010 1 03/25/2022 15:15 Hexachlorobenzene ND 0.00070 0.010 1 03/25/2022 15:15
Hexachlorocyclopentadiene ND 0.00052 0.020 1 03/25/2022 15:15 Methoxychlor ND 0.00045 0.0010 1 03/25/2022 15:15
Toxaphene ND 0.033 0.050 1 03/25/2022 15:15
Aroclor1016 ND 0.032 0.050 1 03/25/2022 15:15
Aroclor1221 ND 0.032 0.050 1 03/25/2022 15:15
Aroclor1232 ND 0.032 0.050 1 03/25/2022 15:15
Aroclor1242 ND 0.032 0.050 1 03/25/2022 15:15
Aroclor1248 ND 0.032 0.050 1 03/25/2022 15:15
Aroclor1254 ND 0.032 0.050 1 03/25/2022 15:15
Aroclor1260 ND 0.032 0.050 1 03/25/2022 15:15
PCBs, total ND NA 0.050 1 03/25/2022 15:15
Surrogates REC (%) Limits
Analyst(s): CK
Decachlorobiphenyl 113 60-130 03/25/2022 15:15
CA ELAP 1644 • NELAP 4033ORELAP
(Cont.)

Analytical Report
McCampbell Analytical, Inc. 1534 Willow Pass Road, Pittsburg, CA 94565-1701 Toll Free Telephone: (877) 252-9262 / Fax: (925) 252-9269 http://www.mccampbell.com / E-mail: [email protected] "When Quality Counts" Client: Environmental Science Associates
Project: D181242.01; Ukiah Riverside Park
Date Received: 03/23/2022 12:14
Date Prepared: 03/23/2022
WorkOrder: 2203E13
Extraction Method: SW3550B
Analytical Method: SW8081A/8082
Unit: mg/kg
Organochlorine Pesticides + PCBs
S-4 2203E13-004A Soil 03/23/2022 09:24 GC23 03282244.d 241888 Analytes Result MDL RL DF Date Analyzed
Client ID Lab ID Matrix Date Collected Instrument Batch ID Aldrin ND 0.0039 0.010 10 03/28/2022 22:59
a-BHC ND 0.0049 0.010 10 03/28/2022 22:59
b-BHC ND 0.0027 0.010 10 03/28/2022 22:59
d-BHC ND 0.0033 0.010 10 03/28/2022 22:59
g-BHC ND 0.0033 0.010 10 03/28/2022 22:59
Chlordane (Technical) ND 0.12 0.25 10 03/28/2022 22:59
a-Chlordane ND 0.0043 0.010 10 03/28/2022 22:59
g-Chlordane ND 0.0034 0.010 10 03/28/2022 22:59
p,p-DDD ND 0.0041 0.010 10 03/28/2022 22:59
p,p-DDE ND 0.0029 0.010 10 03/28/2022 22:59
p,p-DDT ND 0.0039 0.010 10 03/28/2022 22:59
Dieldrin ND 0.0038 0.010 10 03/28/2022 22:59
Endosulfan I ND 0.0035 0.010 10 03/28/2022 22:59
Endosulfan II ND 0.0033 0.010 10 03/28/2022 22:59
Endosulfan sulfate ND 0.0040 0.010 10 03/28/2022 22:59
Endrin ND 0.0038 0.010 10 03/28/2022 22:59
Endrin aldehyde ND 0.0044 0.010 10 03/28/2022 22:59
Endrin ketone ND 0.0029 0.010 10 03/28/2022 22:59
Heptachlor ND 0.0030 0.010 10 03/28/2022 22:59
Heptachlor epoxide ND 0.0030 0.010 10 03/28/2022 22:59
Hexachlorobenzene ND 0.0070 0.10 10 03/28/2022 22:59
Hexachlorocyclopentadiene ND 0.0052 0.20 10 03/28/2022 22:59 Methoxychlor ND 0.0045 0.010 10 03/28/2022 22:59
Toxaphene ND 0.33 0.50 10 03/28/2022 22:59
Aroclor1016 ND 0.32 0.50 10 03/28/2022 22:59
Aroclor1221 ND 0.32 0.50 10 03/28/2022 22:59
Aroclor1232 ND 0.32 0.50 10 03/28/2022 22:59
Aroclor1242 ND 0.32 0.50 10 03/28/2022 22:59
Aroclor1248 ND 0.32 0.50 10 03/28/2022 22:59
Aroclor1254 ND 0.32 0.50 10 03/28/2022 22:59
Aroclor1260 ND 0.32 0.50 10 03/28/2022 22:59
PCBs, total ND NA 0.50 10 03/28/2022 22:59
Surrogates REC (%) Limits
Analyst(s): CN Analytical Comments: a3
Decachlorobiphenyl 92 60-130 03/28/2022 22:59
CA ELAP 1644 • NELAP 4033ORELAP

Analytical Report
McCampbell Analytical, Inc. 1534 Willow Pass Road, Pittsburg, CA 94565-1701 Toll Free Telephone: (877) 252-9262 / Fax: (925) 252-9269 http://www.mccampbell.com / E-mail: [email protected] "When Quality Counts" Client: Environmental Science Associates
Project: D181242.01; Ukiah Riverside Park
Date Received: 03/23/2022 12:14
Date Prepared: 03/23/2022
WorkOrder: 2203E13
Extraction Method: SW5030B
Analytical Method: SW8260B
Unit: mg/kg
Volatile Organics
S-1 2203E13-001A Soil 03/23/2022 09:00 GC45 03252243.D 241831 Analytes Result Qualifiers MDL RL DF Date Analyzed
Client ID Lab ID Matrix Date Collected Instrument Batch ID Acetone ND 0.12 0.20 1 03/26/2022 16:11
tert-Amyl methyl ether (TAME) ND 0.0012 0.0050 1 03/26/2022 16:11 Benzene ND 0.00095 0.0050 1 03/26/2022 16:11
Bromobenzene ND 0.0012 0.0050 1 03/26/2022 16:11
Bromochloromethane ND 0.0011 0.0050 1 03/26/2022 16:11
Bromodichloromethane ND 0.00023 0.0050 1 03/26/2022 16:11 Bromoform ND 0.0038 0.0050 1 03/26/2022 16:11
Bromomethane ND 0.0018 0.0050 1 03/26/2022 16:11
2-Butanone (MEK) ND 0.040 0.10 1 03/26/2022 16:11
t-Butyl alcohol (TBA) ND 0.024 0.050 1 03/26/2022 16:11 n-Butyl benzene ND 0.0016 0.0050 1 03/26/2022 16:11
sec-Butyl benzene ND 0.0018 0.0050 1 03/26/2022 16:11
tert-Butyl benzene ND 0.0021 0.0050 1 03/26/2022 16:11
Carbon Disulfide 0.0018 J 0.0011 0.0050 1 03/26/2022 16:11 Carbon Tetrachloride ND 0.00017 0.0050 1 03/26/2022 16:11 Chlorobenzene ND 0.0012 0.0050 1 03/26/2022 16:11
Chloroethane ND 0.0017 0.0050 1 03/26/2022 16:11
Chloroform ND 0.00032 0.0050 1 03/26/2022 16:11
Chloromethane ND 0.0017 0.0050 1 03/26/2022 16:11
2-Chlorotoluene ND 0.0016 0.0050 1 03/26/2022 16:11
4-Chlorotoluene ND 0.0013 0.0050 1 03/26/2022 16:11
Dibromochloromethane ND 0.00040 0.0050 1 03/26/2022 16:11 1,2-Dibromo-3-chloropropane ND 0.00048 0.00050 1 03/26/2022 16:11 1,2-Dibromoethane (EDB) ND 0.00013 0.00025 1 03/26/2022 16:11 Dibromomethane ND 0.0012 0.0050 1 03/26/2022 16:11
1,2-Dichlorobenzene ND 0.0017 0.0050 1 03/26/2022 16:11 1,3-Dichlorobenzene ND 0.0015 0.0050 1 03/26/2022 16:11 1,4-Dichlorobenzene ND 0.0015 0.0050 1 03/26/2022 16:11 Dichlorodifluoromethane ND 0.00063 0.0050 1 03/26/2022 16:11 1,1-Dichloroethane ND 0.0015 0.0050 1 03/26/2022 16:11
1,2-Dichloroethane (1,2-DCA) ND 0.000070 0.00010 1 03/26/2022 16:11 1,1-Dichloroethene ND 0.00011 0.0050 1 03/26/2022 16:11 cis-1,2-Dichloroethene ND 0.0012 0.0050 1 03/26/2022 16:11 trans-1,2-Dichloroethene ND 0.0012 0.0050 1 03/26/2022 16:11 1,2-Dichloropropane ND 0.0013 0.0050 1 03/26/2022 16:11 1,3-Dichloropropane ND 0.00088 0.0050 1 03/26/2022 16:11 2,2-Dichloropropane ND 0.0019 0.0050 1 03/26/2022 16:11 CA ELAP 1644 • NELAP 4033ORELAP
(Cont.)

Analytical Report
McCampbell Analytical, Inc. 1534 Willow Pass Road, Pittsburg, CA 94565-1701 Toll Free Telephone: (877) 252-9262 / Fax: (925) 252-9269 http://www.mccampbell.com / E-mail: [email protected] "When Quality Counts" Client: Environmental Science Associates
Project: D181242.01; Ukiah Riverside Park
Date Received: 03/23/2022 12:14
Date Prepared: 03/23/2022
WorkOrder: 2203E13
Extraction Method: SW5030B
Analytical Method: SW8260B
Unit: mg/kg
Volatile Organics
S-1 2203E13-001A Soil 03/23/2022 09:00 GC45 03252243.D 241831 Analytes Result Qualifiers MDL RL DF Date Analyzed
Client ID Lab ID Matrix Date Collected Instrument Batch ID 1,1-Dichloropropene ND 0.0018 0.0050 1 03/26/2022 16:11 cis-1,3-Dichloropropene ND 0.00098 0.0050 1 03/26/2022 16:11 trans-1,3-Dichloropropene ND 0.00097 0.0050 1 03/26/2022 16:11 Diisopropyl ether (DIPE) ND 0.0018 0.0050 1 03/26/2022 16:11 Ethylbenzene ND 0.0011 0.0050 1 03/26/2022 16:11
Ethyl tert-butyl ether (ETBE) ND 0.0014 0.0050 1 03/26/2022 16:11 Freon 113 ND 0.0011 0.0050 1 03/26/2022 16:11
Hexachlorobutadiene ND 0.0012 0.0050 1 03/26/2022 16:11 Hexachloroethane ND 0.00064 0.0050 1 03/26/2022 16:11
2-Hexanone ND 0.0027 0.0050 1 03/26/2022 16:11
Isopropylbenzene ND 0.0018 0.0050 1 03/26/2022 16:11
4-Isopropyl toluene ND 0.0019 0.0050 1 03/26/2022 16:11 Methyl-t-butyl ether (MTBE) ND 0.0015 0.0050 1 03/26/2022 16:11 Methylene chloride ND 0.012 0.020 1 03/26/2022 16:11
4-Methyl-2-pentanone (MIBK) ND 0.0017 0.0050 1 03/26/2022 16:11 Naphthalene ND 0.0030 0.0050 1 03/26/2022 16:11
n-Propyl benzene ND 0.0019 0.0050 1 03/26/2022 16:11
Styrene ND 0.0014 0.0050 1 03/26/2022 16:11
1,1,1,2-Tetrachloroethane ND 0.0013 0.0050 1 03/26/2022 16:11 1,1,2,2-Tetrachloroethane ND 0.00044 0.0050 1 03/26/2022 16:11 Tetrachloroethene ND 0.00029 0.0050 1 03/26/2022 16:11
Toluene ND 0.0016 0.0050 1 03/26/2022 16:11
1,2,3-Trichlorobenzene ND 0.0021 0.0050 1 03/26/2022 16:11 1,2,4-Trichlorobenzene ND 0.0016 0.0050 1 03/26/2022 16:11 1,1,1-Trichloroethane ND 0.0016 0.0050 1 03/26/2022 16:11 1,1,2-Trichloroethane ND 0.0012 0.0050 1 03/26/2022 16:11 Trichloroethene ND 0.0014 0.0050 1 03/26/2022 16:11
Trichlorofluoromethane ND 0.0013 0.0050 1 03/26/2022 16:11 1,2,3-Trichloropropane ND 0.00017 0.00025 1 03/26/2022 16:11 1,2,4-Trimethylbenzene ND 0.0016 0.0050 1 03/26/2022 16:11 1,3,5-Trimethylbenzene ND 0.0017 0.0050 1 03/26/2022 16:11 Vinyl Chloride ND 0.00012 0.00025 1 03/26/2022 16:11
m,p-Xylene ND 0.0026 0.0050 1 03/26/2022 16:11
o-Xylene ND 0.0014 0.0050 1 03/26/2022 16:11
Xylenes, Total ND NA 0.0050 1 03/26/2022 16:11
CA ELAP 1644 • NELAP 4033ORELAP
(Cont.)

Analytical Report
McCampbell Analytical, Inc. 1534 Willow Pass Road, Pittsburg, CA 94565-1701 Toll Free Telephone: (877) 252-9262 / Fax: (925) 252-9269 http://www.mccampbell.com / E-mail: [email protected] "When Quality Counts" Client: Environmental Science Associates
Project: D181242.01; Ukiah Riverside Park
Date Received: 03/23/2022 12:14
Date Prepared: 03/23/2022
WorkOrder: 2203E13
Extraction Method: SW5030B
Analytical Method: SW8260B
Unit: mg/kg
Volatile Organics
S-1 2203E13-001A Soil 03/23/2022 09:00 GC45 03252243.D 241831 Analytes Result Qualifiers MDL RL DF Date Analyzed
Client ID Lab ID Matrix Date Collected Instrument Batch ID Surrogates REC (%) Limits
Analyst(s): KF
Dibromofluoromethane 111 70-140 03/26/2022 16:11
Toluene-d8 125 70-140 03/26/2022 16:11
4-BFB 102 70-140 03/26/2022 16:11
Benzene-d6 96 50-140 03/26/2022 16:11
Ethylbenzene-d10 94 50-140 03/26/2022 16:11
1,2-DCB-d4 73 40-140 03/26/2022 16:11
CA ELAP 1644 • NELAP 4033ORELAP
(Cont.)

Analytical Report
McCampbell Analytical, Inc. 1534 Willow Pass Road, Pittsburg, CA 94565-1701 Toll Free Telephone: (877) 252-9262 / Fax: (925) 252-9269 http://www.mccampbell.com / E-mail: [email protected] "When Quality Counts" Client: Environmental Science Associates
Project: D181242.01; Ukiah Riverside Park
Date Received: 03/23/2022 12:14
Date Prepared: 03/23/2022
WorkOrder: 2203E13
Extraction Method: SW5030B
Analytical Method: SW8260B
Unit: mg/kg
Volatile Organics
S-2 2203E13-002A Soil 03/23/2022 09:34 GC45 03252244.D 241831 Analytes Result MDL RL DF Date Analyzed
Client ID Lab ID Matrix Date Collected Instrument Batch ID Acetone ND 0.12 0.20 1 03/26/2022 16:51
tert-Amyl methyl ether (TAME) ND 0.0012 0.0050 1 03/26/2022 16:51 Benzene ND 0.00095 0.0050 1 03/26/2022 16:51
Bromobenzene ND 0.0012 0.0050 1 03/26/2022 16:51
Bromochloromethane ND 0.0011 0.0050 1 03/26/2022 16:51
Bromodichloromethane ND 0.00023 0.0050 1 03/26/2022 16:51 Bromoform ND 0.0038 0.0050 1 03/26/2022 16:51
Bromomethane ND 0.0018 0.0050 1 03/26/2022 16:51
2-Butanone (MEK) ND 0.040 0.10 1 03/26/2022 16:51
t-Butyl alcohol (TBA) ND 0.024 0.050 1 03/26/2022 16:51 n-Butyl benzene ND 0.0016 0.0050 1 03/26/2022 16:51
sec-Butyl benzene ND 0.0018 0.0050 1 03/26/2022 16:51
tert-Butyl benzene ND 0.0021 0.0050 1 03/26/2022 16:51
Carbon Disulfide ND 0.0011 0.0050 1 03/26/2022 16:51
Carbon Tetrachloride ND 0.00017 0.0050 1 03/26/2022 16:51 Chlorobenzene ND 0.0012 0.0050 1 03/26/2022 16:51
Chloroethane ND 0.0017 0.0050 1 03/26/2022 16:51
Chloroform ND 0.00032 0.0050 1 03/26/2022 16:51
Chloromethane ND 0.0017 0.0050 1 03/26/2022 16:51
2-Chlorotoluene ND 0.0016 0.0050 1 03/26/2022 16:51
4-Chlorotoluene ND 0.0013 0.0050 1 03/26/2022 16:51
Dibromochloromethane ND 0.00040 0.0050 1 03/26/2022 16:51 1,2-Dibromo-3-chloropropane ND 0.00048 0.00050 1 03/26/2022 16:51 1,2-Dibromoethane (EDB) ND 0.00013 0.00025 1 03/26/2022 16:51 Dibromomethane ND 0.0012 0.0050 1 03/26/2022 16:51
1,2-Dichlorobenzene ND 0.0017 0.0050 1 03/26/2022 16:51 1,3-Dichlorobenzene ND 0.0015 0.0050 1 03/26/2022 16:51 1,4-Dichlorobenzene ND 0.0015 0.0050 1 03/26/2022 16:51 Dichlorodifluoromethane ND 0.00063 0.0050 1 03/26/2022 16:51 1,1-Dichloroethane ND 0.0015 0.0050 1 03/26/2022 16:51
1,2-Dichloroethane (1,2-DCA) ND 0.000070 0.00010 1 03/26/2022 16:51 1,1-Dichloroethene ND 0.00011 0.0050 1 03/26/2022 16:51 cis-1,2-Dichloroethene ND 0.0012 0.0050 1 03/26/2022 16:51 trans-1,2-Dichloroethene ND 0.0012 0.0050 1 03/26/2022 16:51 1,2-Dichloropropane ND 0.0013 0.0050 1 03/26/2022 16:51 1,3-Dichloropropane ND 0.00088 0.0050 1 03/26/2022 16:51 2,2-Dichloropropane ND 0.0019 0.0050 1 03/26/2022 16:51 CA ELAP 1644 • NELAP 4033ORELAP
(Cont.)

Analytical Report
McCampbell Analytical, Inc. 1534 Willow Pass Road, Pittsburg, CA 94565-1701 Toll Free Telephone: (877) 252-9262 / Fax: (925) 252-9269 http://www.mccampbell.com / E-mail: [email protected] "When Quality Counts" Client: Environmental Science Associates
Project: D181242.01; Ukiah Riverside Park
Date Received: 03/23/2022 12:14
Date Prepared: 03/23/2022
WorkOrder: 2203E13
Extraction Method: SW5030B
Analytical Method: SW8260B
Unit: mg/kg
Volatile Organics
S-2 2203E13-002A Soil 03/23/2022 09:34 GC45 03252244.D 241831 Analytes Result MDL RL DF Date Analyzed
Client ID Lab ID Matrix Date Collected Instrument Batch ID 1,1-Dichloropropene ND 0.0018 0.0050 1 03/26/2022 16:51 cis-1,3-Dichloropropene ND 0.00098 0.0050 1 03/26/2022 16:51 trans-1,3-Dichloropropene ND 0.00097 0.0050 1 03/26/2022 16:51 Diisopropyl ether (DIPE) ND 0.0018 0.0050 1 03/26/2022 16:51 Ethylbenzene ND 0.0011 0.0050 1 03/26/2022 16:51
Ethyl tert-butyl ether (ETBE) ND 0.0014 0.0050 1 03/26/2022 16:51 Freon 113 ND 0.0011 0.0050 1 03/26/2022 16:51
Hexachlorobutadiene ND 0.0012 0.0050 1 03/26/2022 16:51 Hexachloroethane ND 0.00064 0.0050 1 03/26/2022 16:51
2-Hexanone ND 0.0027 0.0050 1 03/26/2022 16:51
Isopropylbenzene ND 0.0018 0.0050 1 03/26/2022 16:51
4-Isopropyl toluene ND 0.0019 0.0050 1 03/26/2022 16:51 Methyl-t-butyl ether (MTBE) ND 0.0015 0.0050 1 03/26/2022 16:51 Methylene chloride ND 0.012 0.020 1 03/26/2022 16:51
4-Methyl-2-pentanone (MIBK) ND 0.0017 0.0050 1 03/26/2022 16:51 Naphthalene ND 0.0030 0.0050 1 03/26/2022 16:51
n-Propyl benzene ND 0.0019 0.0050 1 03/26/2022 16:51
Styrene ND 0.0014 0.0050 1 03/26/2022 16:51
1,1,1,2-Tetrachloroethane ND 0.0013 0.0050 1 03/26/2022 16:51 1,1,2,2-Tetrachloroethane ND 0.00044 0.0050 1 03/26/2022 16:51 Tetrachloroethene ND 0.00029 0.0050 1 03/26/2022 16:51
Toluene ND 0.0016 0.0050 1 03/26/2022 16:51
1,2,3-Trichlorobenzene ND 0.0021 0.0050 1 03/26/2022 16:51 1,2,4-Trichlorobenzene ND 0.0016 0.0050 1 03/26/2022 16:51 1,1,1-Trichloroethane ND 0.0016 0.0050 1 03/26/2022 16:51 1,1,2-Trichloroethane ND 0.0012 0.0050 1 03/26/2022 16:51 Trichloroethene ND 0.0014 0.0050 1 03/26/2022 16:51
Trichlorofluoromethane ND 0.0013 0.0050 1 03/26/2022 16:51 1,2,3-Trichloropropane ND 0.00017 0.00025 1 03/26/2022 16:51 1,2,4-Trimethylbenzene ND 0.0016 0.0050 1 03/26/2022 16:51 1,3,5-Trimethylbenzene ND 0.0017 0.0050 1 03/26/2022 16:51 Vinyl Chloride ND 0.00012 0.00025 1 03/26/2022 16:51
m,p-Xylene ND 0.0026 0.0050 1 03/26/2022 16:51
o-Xylene ND 0.0014 0.0050 1 03/26/2022 16:51
Xylenes, Total ND NA 0.0050 1 03/26/2022 16:51
CA ELAP 1644 • NELAP 4033ORELAP
(Cont.)

Analytical Report
McCampbell Analytical, Inc. 1534 Willow Pass Road, Pittsburg, CA 94565-1701 Toll Free Telephone: (877) 252-9262 / Fax: (925) 252-9269 http://www.mccampbell.com / E-mail: [email protected] "When Quality Counts" Client: Environmental Science Associates
Project: D181242.01; Ukiah Riverside Park
Date Received: 03/23/2022 12:14
Date Prepared: 03/23/2022
WorkOrder: 2203E13
Extraction Method: SW5030B
Analytical Method: SW8260B
Unit: mg/kg
Volatile Organics
S-2 2203E13-002A Soil 03/23/2022 09:34 GC45 03252244.D 241831 Analytes Result MDL RL DF Date Analyzed
Client ID Lab ID Matrix Date Collected Instrument Batch ID Surrogates REC (%) Limits
Analyst(s): KF
Dibromofluoromethane 109 70-140 03/26/2022 16:51
Toluene-d8 128 70-140 03/26/2022 16:51
4-BFB 106 70-140 03/26/2022 16:51
Benzene-d6 113 50-140 03/26/2022 16:51
Ethylbenzene-d10 115 50-140 03/26/2022 16:51
1,2-DCB-d4 81 40-140 03/26/2022 16:51
CA ELAP 1644 • NELAP 4033ORELAP
(Cont.)

Analytical Report
McCampbell Analytical, Inc. 1534 Willow Pass Road, Pittsburg, CA 94565-1701 Toll Free Telephone: (877) 252-9262 / Fax: (925) 252-9269 http://www.mccampbell.com / E-mail: [email protected] "When Quality Counts" Client: Environmental Science Associates
Project: D181242.01; Ukiah Riverside Park
Date Received: 03/23/2022 12:14
Date Prepared: 03/23/2022
WorkOrder: 2203E13
Extraction Method: SW5030B
Analytical Method: SW8260B
Unit: mg/kg
Volatile Organics
S-3 2203E13-003A Soil 03/23/2022 09:13 GC45 03252245.D 241831 Analytes Result Qualifiers MDL RL DF Date Analyzed
Client ID Lab ID Matrix Date Collected Instrument Batch ID Acetone ND 0.12 0.20 1 03/26/2022 17:31
tert-Amyl methyl ether (TAME) ND 0.0012 0.0050 1 03/26/2022 17:31 Benzene ND 0.00095 0.0050 1 03/26/2022 17:31
Bromobenzene ND 0.0012 0.0050 1 03/26/2022 17:31
Bromochloromethane ND 0.0011 0.0050 1 03/26/2022 17:31
Bromodichloromethane ND 0.00023 0.0050 1 03/26/2022 17:31 Bromoform ND 0.0038 0.0050 1 03/26/2022 17:31
Bromomethane ND 0.0018 0.0050 1 03/26/2022 17:31
2-Butanone (MEK) ND 0.040 0.10 1 03/26/2022 17:31
t-Butyl alcohol (TBA) ND 0.024 0.050 1 03/26/2022 17:31 n-Butyl benzene ND 0.0016 0.0050 1 03/26/2022 17:31
sec-Butyl benzene ND 0.0018 0.0050 1 03/26/2022 17:31
tert-Butyl benzene ND 0.0021 0.0050 1 03/26/2022 17:31
Carbon Disulfide 0.0019 J 0.0011 0.0050 1 03/26/2022 17:31 Carbon Tetrachloride ND 0.00017 0.0050 1 03/26/2022 17:31 Chlorobenzene ND 0.0012 0.0050 1 03/26/2022 17:31
Chloroethane ND 0.0017 0.0050 1 03/26/2022 17:31
Chloroform ND 0.00032 0.0050 1 03/26/2022 17:31
Chloromethane ND 0.0017 0.0050 1 03/26/2022 17:31
2-Chlorotoluene ND 0.0016 0.0050 1 03/26/2022 17:31
4-Chlorotoluene ND 0.0013 0.0050 1 03/26/2022 17:31
Dibromochloromethane ND 0.00040 0.0050 1 03/26/2022 17:31 1,2-Dibromo-3-chloropropane ND 0.00048 0.00050 1 03/26/2022 17:31 1,2-Dibromoethane (EDB) ND 0.00013 0.00025 1 03/26/2022 17:31 Dibromomethane ND 0.0012 0.0050 1 03/26/2022 17:31
1,2-Dichlorobenzene ND 0.0017 0.0050 1 03/26/2022 17:31 1,3-Dichlorobenzene ND 0.0015 0.0050 1 03/26/2022 17:31 1,4-Dichlorobenzene ND 0.0015 0.0050 1 03/26/2022 17:31 Dichlorodifluoromethane ND 0.00063 0.0050 1 03/26/2022 17:31 1,1-Dichloroethane ND 0.0015 0.0050 1 03/26/2022 17:31
1,2-Dichloroethane (1,2-DCA) ND 0.000070 0.00010 1 03/26/2022 17:31 1,1-Dichloroethene ND 0.00011 0.0050 1 03/26/2022 17:31 cis-1,2-Dichloroethene ND 0.0012 0.0050 1 03/26/2022 17:31 trans-1,2-Dichloroethene ND 0.0012 0.0050 1 03/26/2022 17:31 1,2-Dichloropropane ND 0.0013 0.0050 1 03/26/2022 17:31 1,3-Dichloropropane ND 0.00088 0.0050 1 03/26/2022 17:31 2,2-Dichloropropane ND 0.0019 0.0050 1 03/26/2022 17:31 CA ELAP 1644 • NELAP 4033ORELAP
(Cont.)

Analytical Report
McCampbell Analytical, Inc. 1534 Willow Pass Road, Pittsburg, CA 94565-1701 Toll Free Telephone: (877) 252-9262 / Fax: (925) 252-9269 http://www.mccampbell.com / E-mail: [email protected] "When Quality Counts" Client: Environmental Science Associates
Project: D181242.01; Ukiah Riverside Park
Date Received: 03/23/2022 12:14
Date Prepared: 03/23/2022
WorkOrder: 2203E13
Extraction Method: SW5030B
Analytical Method: SW8260B
Unit: mg/kg
Volatile Organics
S-3 2203E13-003A Soil 03/23/2022 09:13 GC45 03252245.D 241831 Analytes Result Qualifiers MDL RL DF Date Analyzed
Client ID Lab ID Matrix Date Collected Instrument Batch ID 1,1-Dichloropropene ND 0.0018 0.0050 1 03/26/2022 17:31 cis-1,3-Dichloropropene ND 0.00098 0.0050 1 03/26/2022 17:31 trans-1,3-Dichloropropene ND 0.00097 0.0050 1 03/26/2022 17:31 Diisopropyl ether (DIPE) ND 0.0018 0.0050 1 03/26/2022 17:31 Ethylbenzene ND 0.0011 0.0050 1 03/26/2022 17:31
Ethyl tert-butyl ether (ETBE) ND 0.0014 0.0050 1 03/26/2022 17:31 Freon 113 ND 0.0011 0.0050 1 03/26/2022 17:31
Hexachlorobutadiene ND 0.0012 0.0050 1 03/26/2022 17:31 Hexachloroethane ND 0.00064 0.0050 1 03/26/2022 17:31
2-Hexanone ND 0.0027 0.0050 1 03/26/2022 17:31
Isopropylbenzene ND 0.0018 0.0050 1 03/26/2022 17:31
4-Isopropyl toluene ND 0.0019 0.0050 1 03/26/2022 17:31 Methyl-t-butyl ether (MTBE) ND 0.0015 0.0050 1 03/26/2022 17:31 Methylene chloride ND 0.012 0.020 1 03/26/2022 17:31
4-Methyl-2-pentanone (MIBK) ND 0.0017 0.0050 1 03/26/2022 17:31 Naphthalene ND 0.0030 0.0050 1 03/26/2022 17:31
n-Propyl benzene ND 0.0019 0.0050 1 03/26/2022 17:31
Styrene ND 0.0014 0.0050 1 03/26/2022 17:31
1,1,1,2-Tetrachloroethane ND 0.0013 0.0050 1 03/26/2022 17:31 1,1,2,2-Tetrachloroethane ND 0.00044 0.0050 1 03/26/2022 17:31 Tetrachloroethene ND 0.00029 0.0050 1 03/26/2022 17:31
Toluene ND 0.0016 0.0050 1 03/26/2022 17:31
1,2,3-Trichlorobenzene ND 0.0021 0.0050 1 03/26/2022 17:31 1,2,4-Trichlorobenzene ND 0.0016 0.0050 1 03/26/2022 17:31 1,1,1-Trichloroethane ND 0.0016 0.0050 1 03/26/2022 17:31 1,1,2-Trichloroethane ND 0.0012 0.0050 1 03/26/2022 17:31 Trichloroethene ND 0.0014 0.0050 1 03/26/2022 17:31
Trichlorofluoromethane ND 0.0013 0.0050 1 03/26/2022 17:31 1,2,3-Trichloropropane ND 0.00017 0.00025 1 03/26/2022 17:31 1,2,4-Trimethylbenzene ND 0.0016 0.0050 1 03/26/2022 17:31 1,3,5-Trimethylbenzene ND 0.0017 0.0050 1 03/26/2022 17:31 Vinyl Chloride ND 0.00012 0.00025 1 03/26/2022 17:31
m,p-Xylene ND 0.0026 0.0050 1 03/26/2022 17:31
o-Xylene ND 0.0014 0.0050 1 03/26/2022 17:31
Xylenes, Total ND NA 0.0050 1 03/26/2022 17:31
CA ELAP 1644 • NELAP 4033ORELAP
(Cont.)

Analytical Report
McCampbell Analytical, Inc. 1534 Willow Pass Road, Pittsburg, CA 94565-1701 Toll Free Telephone: (877) 252-9262 / Fax: (925) 252-9269 http://www.mccampbell.com / E-mail: [email protected] "When Quality Counts" Client: Environmental Science Associates
Project: D181242.01; Ukiah Riverside Park
Date Received: 03/23/2022 12:14
Date Prepared: 03/23/2022
WorkOrder: 2203E13
Extraction Method: SW5030B
Analytical Method: SW8260B
Unit: mg/kg
Volatile Organics
S-3 2203E13-003A Soil 03/23/2022 09:13 GC45 03252245.D 241831 Analytes Result Qualifiers MDL RL DF Date Analyzed
Client ID Lab ID Matrix Date Collected Instrument Batch ID Surrogates REC (%) Limits
Analyst(s): KF
Dibromofluoromethane 109 70-140 03/26/2022 17:31
Toluene-d8 127 70-140 03/26/2022 17:31
4-BFB 102 70-140 03/26/2022 17:31
Benzene-d6 108 50-140 03/26/2022 17:31
Ethylbenzene-d10 108 50-140 03/26/2022 17:31
1,2-DCB-d4 79 40-140 03/26/2022 17:31
CA ELAP 1644 • NELAP 4033ORELAP
(Cont.)

Analytical Report
McCampbell Analytical, Inc. 1534 Willow Pass Road, Pittsburg, CA 94565-1701 Toll Free Telephone: (877) 252-9262 / Fax: (925) 252-9269 http://www.mccampbell.com / E-mail: [email protected] "When Quality Counts" Client: Environmental Science Associates
Project: D181242.01; Ukiah Riverside Park
Date Received: 03/23/2022 12:14
Date Prepared: 03/23/2022
WorkOrder: 2203E13
Extraction Method: SW5030B
Analytical Method: SW8260B
Unit: mg/kg
Volatile Organics
S-4 2203E13-004A Soil 03/23/2022 09:24 GC16 03282222.D 241887 Analytes Result Qualifiers MDL RL DF Date Analyzed
Client ID Lab ID Matrix Date Collected Instrument Batch ID Acetone ND 0.12 0.20 1 03/28/2022 23:38
tert-Amyl methyl ether (TAME) ND 0.0012 0.0050 1 03/28/2022 23:38 Benzene ND 0.00095 0.0050 1 03/28/2022 23:38
Bromobenzene ND 0.0012 0.0050 1 03/28/2022 23:38
Bromochloromethane ND 0.0011 0.0050 1 03/28/2022 23:38
Bromodichloromethane ND 0.00023 0.0050 1 03/28/2022 23:38 Bromoform ND 0.0038 0.0050 1 03/28/2022 23:38
Bromomethane ND 0.0018 0.0050 1 03/28/2022 23:38
2-Butanone (MEK) ND 0.040 0.10 1 03/28/2022 23:38
t-Butyl alcohol (TBA) ND 0.024 0.050 1 03/28/2022 23:38 n-Butyl benzene ND 0.0016 0.0050 1 03/28/2022 23:38
sec-Butyl benzene ND 0.0018 0.0050 1 03/28/2022 23:38
tert-Butyl benzene ND 0.0021 0.0050 1 03/28/2022 23:38
Carbon Disulfide 0.0011 J 0.0011 0.0050 1 03/28/2022 23:38 Carbon Tetrachloride ND 0.00017 0.0050 1 03/28/2022 23:38 Chlorobenzene ND 0.0012 0.0050 1 03/28/2022 23:38
Chloroethane ND 0.0017 0.0050 1 03/28/2022 23:38
Chloroform ND 0.00032 0.0050 1 03/28/2022 23:38
Chloromethane ND 0.0017 0.0050 1 03/28/2022 23:38
2-Chlorotoluene ND 0.0016 0.0050 1 03/28/2022 23:38
4-Chlorotoluene ND 0.0013 0.0050 1 03/28/2022 23:38
Dibromochloromethane ND 0.00040 0.0050 1 03/28/2022 23:38 1,2-Dibromo-3-chloropropane ND 0.00048 0.00050 1 03/28/2022 23:38 1,2-Dibromoethane (EDB) ND 0.00013 0.00025 1 03/28/2022 23:38 Dibromomethane ND 0.0012 0.0050 1 03/28/2022 23:38
1,2-Dichlorobenzene ND 0.0017 0.0050 1 03/28/2022 23:38 1,3-Dichlorobenzene ND 0.0015 0.0050 1 03/28/2022 23:38 1,4-Dichlorobenzene ND 0.0015 0.0050 1 03/28/2022 23:38 Dichlorodifluoromethane ND 0.00063 0.0050 1 03/28/2022 23:38 1,1-Dichloroethane ND 0.0015 0.0050 1 03/28/2022 23:38
1,2-Dichloroethane (1,2-DCA) ND 0.000070 0.00010 1 03/28/2022 23:38 1,1-Dichloroethene ND 0.00011 0.0050 1 03/28/2022 23:38 cis-1,2-Dichloroethene ND 0.0012 0.0050 1 03/28/2022 23:38 trans-1,2-Dichloroethene ND 0.0012 0.0050 1 03/28/2022 23:38 1,2-Dichloropropane ND 0.0013 0.0050 1 03/28/2022 23:38 1,3-Dichloropropane ND 0.00088 0.0050 1 03/28/2022 23:38 2,2-Dichloropropane ND 0.0019 0.0050 1 03/28/2022 23:38 CA ELAP 1644 • NELAP 4033ORELAP
(Cont.)

Analytical Report
McCampbell Analytical, Inc. 1534 Willow Pass Road, Pittsburg, CA 94565-1701 Toll Free Telephone: (877) 252-9262 / Fax: (925) 252-9269 http://www.mccampbell.com / E-mail: [email protected] "When Quality Counts" Client: Environmental Science Associates
Project: D181242.01; Ukiah Riverside Park
Date Received: 03/23/2022 12:14
Date Prepared: 03/23/2022
WorkOrder: 2203E13
Extraction Method: SW5030B
Analytical Method: SW8260B
Unit: mg/kg
Volatile Organics
S-4 2203E13-004A Soil 03/23/2022 09:24 GC16 03282222.D 241887 Analytes Result Qualifiers MDL RL DF Date Analyzed
Client ID Lab ID Matrix Date Collected Instrument Batch ID 1,1-Dichloropropene ND 0.0018 0.0050 1 03/28/2022 23:38 cis-1,3-Dichloropropene ND 0.00098 0.0050 1 03/28/2022 23:38 trans-1,3-Dichloropropene ND 0.00097 0.0050 1 03/28/2022 23:38 Diisopropyl ether (DIPE) ND 0.0018 0.0050 1 03/28/2022 23:38 Ethylbenzene ND 0.0011 0.0050 1 03/28/2022 23:38
Ethyl tert-butyl ether (ETBE) ND 0.0014 0.0050 1 03/28/2022 23:38 Freon 113 ND 0.0011 0.0050 1 03/28/2022 23:38
Hexachlorobutadiene ND 0.0012 0.0050 1 03/28/2022 23:38 Hexachloroethane ND 0.00064 0.0050 1 03/28/2022 23:38
2-Hexanone ND 0.0027 0.0050 1 03/28/2022 23:38
Isopropylbenzene ND 0.0018 0.0050 1 03/28/2022 23:38
4-Isopropyl toluene 0.0026 J 0.0019 0.0050 1 03/28/2022 23:38 Methyl-t-butyl ether (MTBE) ND 0.0015 0.0050 1 03/28/2022 23:38 Methylene chloride ND 0.012 0.020 1 03/28/2022 23:38
4-Methyl-2-pentanone (MIBK) ND 0.0017 0.0050 1 03/28/2022 23:38 Naphthalene ND 0.0030 0.0050 1 03/28/2022 23:38
n-Propyl benzene ND 0.0019 0.0050 1 03/28/2022 23:38
Styrene ND 0.0014 0.0050 1 03/28/2022 23:38
1,1,1,2-Tetrachloroethane ND 0.0013 0.0050 1 03/28/2022 23:38 1,1,2,2-Tetrachloroethane ND 0.00044 0.0050 1 03/28/2022 23:38 Tetrachloroethene ND 0.00029 0.0050 1 03/28/2022 23:38
Toluene ND 0.0016 0.0050 1 03/28/2022 23:38
1,2,3-Trichlorobenzene ND 0.0021 0.0050 1 03/28/2022 23:38 1,2,4-Trichlorobenzene ND 0.0016 0.0050 1 03/28/2022 23:38 1,1,1-Trichloroethane ND 0.0016 0.0050 1 03/28/2022 23:38 1,1,2-Trichloroethane ND 0.0012 0.0050 1 03/28/2022 23:38 Trichloroethene ND 0.0014 0.0050 1 03/28/2022 23:38
Trichlorofluoromethane ND 0.0013 0.0050 1 03/28/2022 23:38 1,2,3-Trichloropropane ND 0.00017 0.00025 1 03/28/2022 23:38 1,2,4-Trimethylbenzene ND 0.0016 0.0050 1 03/28/2022 23:38 1,3,5-Trimethylbenzene ND 0.0017 0.0050 1 03/28/2022 23:38 Vinyl Chloride ND 0.00012 0.00025 1 03/28/2022 23:38
m,p-Xylene ND 0.0026 0.0050 1 03/28/2022 23:38
o-Xylene ND 0.0014 0.0050 1 03/28/2022 23:38
Xylenes, Total ND NA 0.0050 1 03/28/2022 23:38
CA ELAP 1644 • NELAP 4033ORELAP
(Cont.)

Analytical Report
McCampbell Analytical, Inc. 1534 Willow Pass Road, Pittsburg, CA 94565-1701 Toll Free Telephone: (877) 252-9262 / Fax: (925) 252-9269 http://www.mccampbell.com / E-mail: [email protected] "When Quality Counts" Client: Environmental Science Associates
Project: D181242.01; Ukiah Riverside Park
Date Received: 03/23/2022 12:14
Date Prepared: 03/23/2022
WorkOrder: 2203E13
Extraction Method: SW5030B
Analytical Method: SW8260B
Unit: mg/kg
Volatile Organics
S-4 2203E13-004A Soil 03/23/2022 09:24 GC16 03282222.D 241887 Analytes Result Qualifiers MDL RL DF Date Analyzed
Client ID Lab ID Matrix Date Collected Instrument Batch ID Surrogates REC (%) Limits
Analyst(s): KF
Dibromofluoromethane 111 70-140 03/28/2022 23:38
Toluene-d8 116 70-140 03/28/2022 23:38
4-BFB 108 70-140 03/28/2022 23:38
Benzene-d6 107 50-140 03/28/2022 23:38
Ethylbenzene-d10 102 50-140 03/28/2022 23:38
1,2-DCB-d4 89 40-140 03/28/2022 23:38
CA ELAP 1644 • NELAP 4033ORELAP

Analytical Report
McCampbell Analytical, Inc. 1534 Willow Pass Road, Pittsburg, CA 94565-1701 Toll Free Telephone: (877) 252-9262 / Fax: (925) 252-9269 http://www.mccampbell.com / E-mail: [email protected] "When Quality Counts" Client: Environmental Science Associates
Project: D181242.01; Ukiah Riverside Park
Date Received: 03/23/2022 12:14
Date Prepared: 03/25/2022
WorkOrder: 2203E13
Extraction Method: SW3550B
Analytical Method: SW8270C
Unit: mg/Kg
Semi-Volatile Organics
S-1 2203E13-001A Soil 03/23/2022 09:00 GC21 03252216.D 242025 Analytes Result Qualifiers MDL RL DF Date Analyzed
Client ID Lab ID Matrix Date Collected Instrument Batch ID Acenaphthene ND 0.014 0.052 5 03/25/2022 22:14
Acenaphthylene ND 0.011 0.052 5 03/25/2022 22:14
Acetochlor ND 1.8 10 5 03/25/2022 22:14
Anthracene ND 0.023 0.052 5 03/25/2022 22:14
Benzidine ND 14 50 5 03/25/2022 22:14
Benzo (a) anthracene ND 0.14 0.52 5 03/25/2022 22:14
Benzo (a) pyrene 0.032 J 0.028 0.10 5 03/25/2022 22:14
Benzo (b) fluoranthene ND 0.052 0.10 5 03/25/2022 22:14 Benzo (g,h,i) perylene 0.037 J 0.036 0.10 5 03/25/2022 22:14 Benzo (k) fluoranthene ND 0.040 0.10 5 03/25/2022 22:14 Benzyl Alcohol ND 22 50 5 03/25/2022 22:14
1,1-Biphenyl ND 0.12 0.52 5 03/25/2022 22:14
Bis (2-chloroethoxy) Methane ND 1.2 10 5 03/25/2022 22:14 Bis (2-chloroethyl) Ether ND 0.014 0.052 5 03/25/2022 22:14 Bis (2-chloroisopropyl) Ether ND 0.050 0.10 5 03/25/2022 22:14 Bis (2-ethylhexyl) Adipate ND 3.4 10 5 03/25/2022 22:14 Bis (2-ethylhexyl) Phthalate 0.23 J 0.19 0.52 5 03/25/2022 22:14 4-Bromophenyl Phenyl Ether ND 1.6 10 5 03/25/2022 22:14 Butylbenzyl Phthalate ND 0.14 0.52 5 03/25/2022 22:14
4-Chloroaniline ND 0.037 0.052 5 03/25/2022 22:14
4-Chloro-3-methylphenol ND 2.5 10 5 03/25/2022 22:14
2-Chloronaphthalene ND 1.6 10 5 03/25/2022 22:14
2-Chlorophenol ND 0.096 0.52 5 03/25/2022 22:14
4-Chlorophenyl Phenyl Ether ND 2.6 10 5 03/25/2022 22:14 Chrysene ND 0.027 0.10 5 03/25/2022 22:14
Dibenzo (a,h) anthracene ND 0.044 0.10 5 03/25/2022 22:14 Dibenzofuran ND 0.0037 0.052 5 03/25/2022 22:14
Di-n-butyl Phthalate ND 0.18 0.52 5 03/25/2022 22:14
1,2-Dichlorobenzene ND 2.1 10 5 03/25/2022 22:14
1,3-Dichlorobenzene ND 1.7 10 5 03/25/2022 22:14
1,4-Dichlorobenzene ND 2.0 10 5 03/25/2022 22:14
3,3-Dichlorobenzidine ND 0.10 0.52 5 03/25/2022 22:14
2,4-Dichlorophenol ND 0.050 0.10 5 03/25/2022 22:14
Diethyl Phthalate ND 0.16 0.52 5 03/25/2022 22:14
2,4-Dimethylphenol ND 1.8 10 5 03/25/2022 22:14
Dimethyl Phthalate ND 0.076 0.10 5 03/25/2022 22:14
4,6-Dinitro-2-methylphenol ND 16 50 5 03/25/2022 22:14
CA ELAP 1644 • NELAP 4033ORELAP
(Cont.)

Analytical Report
McCampbell Analytical, Inc. 1534 Willow Pass Road, Pittsburg, CA 94565-1701 Toll Free Telephone: (877) 252-9262 / Fax: (925) 252-9269 http://www.mccampbell.com / E-mail: [email protected] "When Quality Counts" Client: Environmental Science Associates
Project: D181242.01; Ukiah Riverside Park
Date Received: 03/23/2022 12:14
Date Prepared: 03/25/2022
WorkOrder: 2203E13
Extraction Method: SW3550B
Analytical Method: SW8270C
Unit: mg/Kg
Semi-Volatile Organics
S-1 2203E13-001A Soil 03/23/2022 09:00 GC21 03252216.D 242025 Analytes Result Qualifiers MDL RL DF Date Analyzed
Client ID Lab ID Matrix Date Collected Instrument Batch ID 2,4-Dinitrophenol ND 4.4 10 5 03/25/2022 22:14
2,4-Dinitrotoluene ND 0.14 0.52 5 03/25/2022 22:14
2,6-Dinitrotoluene ND 2.5 5.0 5 03/25/2022 22:14
Di-n-octyl Phthalate ND 8.0 20 5 03/25/2022 22:14
1,2-Diphenylhydrazine ND 1.5 10 5 03/25/2022 22:14
Fluoranthene ND 0.032 0.10 5 03/25/2022 22:14
Fluorene ND 0.040 0.10 5 03/25/2022 22:14
Hexachlorobenzene ND 0.048 0.10 5 03/25/2022 22:14
Hexachlorobutadiene ND 0.0076 0.052 5 03/25/2022 22:14
Hexachlorocyclopentadiene ND 21 50 5 03/25/2022 22:14
Hexachloroethane ND 0.10 0.52 5 03/25/2022 22:14
Indeno (1,2,3-cd) pyrene ND 0.14 0.52 5 03/25/2022 22:14 Isophorone ND 2.8 10 5 03/25/2022 22:14
1-Methylnaphthalene ND 0.013 0.052 5 03/25/2022 22:14
2-Methylnaphthalene ND 0.019 0.052 5 03/25/2022 22:14
2-Methylphenol (o-Cresol) ND 2.4 10 5 03/25/2022 22:14
3 & 4-Methylphenol (m,p-Cresol) ND 1.8 10 5 03/25/2022 22:14 Naphthalene ND 0.13 0.25 5 03/25/2022 22:14
2-Nitroaniline ND 12 50 5 03/25/2022 22:14
3-Nitroaniline ND 9.6 50 5 03/25/2022 22:14
4-Nitroaniline ND 11 50 5 03/25/2022 22:14
Nitrobenzene ND 2.2 10 5 03/25/2022 22:14
2-Nitrophenol ND 12 50 5 03/25/2022 22:14
4-Nitrophenol ND 14 50 5 03/25/2022 22:14
N-Nitrosodiphenylamine ND 1.2 10 5 03/25/2022 22:14
N-Nitrosodi-n-propylamine ND 3.2 10 5 03/25/2022 22:14
Pentachlorophenol ND 1.2 2.5 5 03/25/2022 22:14
Phenanthrene ND 0.027 0.052 5 03/25/2022 22:14
Phenol ND 0.072 0.20 5 03/25/2022 22:14
Pyrene ND 0.025 0.10 5 03/25/2022 22:14
Pyridine ND 1.8 10 5 03/25/2022 22:14
2,3,4,6-Tetrachlorophenol ND 3.2 10 5 03/25/2022 22:14
1,2,4-Trichlorobenzene ND 1.8 10 5 03/25/2022 22:14
2,4,5-Trichlorophenol ND 0.024 0.10 5 03/25/2022 22:14
2,4,6-Trichlorophenol ND 0.023 0.10 5 03/25/2022 22:14
CA ELAP 1644 • NELAP 4033ORELAP
(Cont.)

Analytical Report
McCampbell Analytical, Inc. 1534 Willow Pass Road, Pittsburg, CA 94565-1701 Toll Free Telephone: (877) 252-9262 / Fax: (925) 252-9269 http://www.mccampbell.com / E-mail: [email protected] "When Quality Counts" Client: Environmental Science Associates
Project: D181242.01; Ukiah Riverside Park
Date Received: 03/23/2022 12:14
Date Prepared: 03/25/2022
WorkOrder: 2203E13
Extraction Method: SW3550B
Analytical Method: SW8270C
Unit: mg/Kg
Semi-Volatile Organics
S-1 2203E13-001A Soil 03/23/2022 09:00 GC21 03252216.D 242025 Analytes Result Qualifiers MDL RL DF Date Analyzed
Client ID Lab ID Matrix Date Collected Instrument Batch ID Surrogates REC (%) Limits
Analyst(s): KVE Analytical Comments: a3,a4
2-Fluorophenol 100 60-130 03/25/2022 22:14
Phenol-d5 101 50-130 03/25/2022 22:14
Nitrobenzene-d5 91 60-130 03/25/2022 22:14
2-Fluorobiphenyl 96 60-130 03/25/2022 22:14
2,4,6-Tribromophenol 99 50-130 03/25/2022 22:14
4-Terphenyl-d14 79 50-130 03/25/2022 22:14
CA ELAP 1644 • NELAP 4033ORELAP
(Cont.)

Analytical Report
McCampbell Analytical, Inc. 1534 Willow Pass Road, Pittsburg, CA 94565-1701 Toll Free Telephone: (877) 252-9262 / Fax: (925) 252-9269 http://www.mccampbell.com / E-mail: [email protected] "When Quality Counts" Client: Environmental Science Associates
Project: D181242.01; Ukiah Riverside Park
Date Received: 03/23/2022 12:14
Date Prepared: 03/25/2022
WorkOrder: 2203E13
Extraction Method: SW3550B
Analytical Method: SW8270C
Unit: mg/Kg
Semi-Volatile Organics
S-2 2203E13-002A Soil 03/23/2022 09:34 GC21 03252217.D 242025 Analytes Result Qualifiers MDL RL DF Date Analyzed
Client ID Lab ID Matrix Date Collected Instrument Batch ID Acenaphthene ND 0.028 0.10 10 03/25/2022 22:41
Acenaphthylene ND 0.022 0.10 10 03/25/2022 22:41
Acetochlor ND 3.5 20 10 03/25/2022 22:41
Anthracene ND 0.046 0.10 10 03/25/2022 22:41
Benzidine ND 29 100 10 03/25/2022 22:41
Benzo (a) anthracene ND 0.29 1.0 10 03/25/2022 22:41
Benzo (a) pyrene 0.071 J 0.056 0.20 10 03/25/2022 22:41 Benzo (b) fluoranthene ND 0.10 0.20 10 03/25/2022 22:41 Benzo (g,h,i) perylene 0.077 J 0.071 0.20 10 03/25/2022 22:41 Benzo (k) fluoranthene ND 0.080 0.20 10 03/25/2022 22:41 Benzyl Alcohol ND 44 100 10 03/25/2022 22:41
1,1-Biphenyl ND 0.23 1.0 10 03/25/2022 22:41
Bis (2-chloroethoxy) Methane ND 2.4 20 10 03/25/2022 22:41 Bis (2-chloroethyl) Ether ND 0.029 0.10 10 03/25/2022 22:41 Bis (2-chloroisopropyl) Ether ND 0.10 0.20 10 03/25/2022 22:41 Bis (2-ethylhexyl) Adipate ND 6.8 20 10 03/25/2022 22:41 Bis (2-ethylhexyl) Phthalate ND 0.38 1.0 10 03/25/2022 22:41 4-Bromophenyl Phenyl Ether ND 3.2 20 10 03/25/2022 22:41 Butylbenzyl Phthalate ND 0.29 1.0 10 03/25/2022 22:41
4-Chloroaniline ND 0.074 0.10 10 03/25/2022 22:41
4-Chloro-3-methylphenol ND 5.0 20 10 03/25/2022 22:41
2-Chloronaphthalene ND 3.3 20 10 03/25/2022 22:41
2-Chlorophenol ND 0.19 1.0 10 03/25/2022 22:41
4-Chlorophenyl Phenyl Ether ND 5.3 20 10 03/25/2022 22:41 Chrysene ND 0.054 0.20 10 03/25/2022 22:41
Dibenzo (a,h) anthracene ND 0.088 0.20 10 03/25/2022 22:41 Dibenzofuran ND 0.0074 0.10 10 03/25/2022 22:41
Di-n-butyl Phthalate ND 0.35 1.0 10 03/25/2022 22:41
1,2-Dichlorobenzene ND 4.2 20 10 03/25/2022 22:41
1,3-Dichlorobenzene ND 3.4 20 10 03/25/2022 22:41
1,4-Dichlorobenzene ND 3.9 20 10 03/25/2022 22:41
3,3-Dichlorobenzidine ND 0.21 1.0 10 03/25/2022 22:41
2,4-Dichlorophenol ND 0.10 0.20 10 03/25/2022 22:41
Diethyl Phthalate ND 0.32 1.0 10 03/25/2022 22:41
2,4-Dimethylphenol ND 3.5 20 10 03/25/2022 22:41
Dimethyl Phthalate ND 0.15 0.20 10 03/25/2022 22:41
4,6-Dinitro-2-methylphenol ND 33 100 10 03/25/2022 22:41 CA ELAP 1644 • NELAP 4033ORELAP
(Cont.)

Analytical Report
McCampbell Analytical, Inc. 1534 Willow Pass Road, Pittsburg, CA 94565-1701 Toll Free Telephone: (877) 252-9262 / Fax: (925) 252-9269 http://www.mccampbell.com / E-mail: [email protected] "When Quality Counts" Client: Environmental Science Associates
Project: D181242.01; Ukiah Riverside Park
Date Received: 03/23/2022 12:14
Date Prepared: 03/25/2022
WorkOrder: 2203E13
Extraction Method: SW3550B
Analytical Method: SW8270C
Unit: mg/Kg
Semi-Volatile Organics
S-2 2203E13-002A Soil 03/23/2022 09:34 GC21 03252217.D 242025 Analytes Result Qualifiers MDL RL DF Date Analyzed
Client ID Lab ID Matrix Date Collected Instrument Batch ID 2,4-Dinitrophenol ND 8.8 20 10 03/25/2022 22:41
2,4-Dinitrotoluene ND 0.29 1.0 10 03/25/2022 22:41
2,6-Dinitrotoluene ND 5.0 10 10 03/25/2022 22:41
Di-n-octyl Phthalate ND 16 40 10 03/25/2022 22:41
1,2-Diphenylhydrazine ND 3.0 20 10 03/25/2022 22:41
Fluoranthene ND 0.063 0.20 10 03/25/2022 22:41
Fluorene ND 0.080 0.20 10 03/25/2022 22:41
Hexachlorobenzene ND 0.096 0.20 10 03/25/2022 22:41
Hexachlorobutadiene ND 0.015 0.10 10 03/25/2022 22:41
Hexachlorocyclopentadiene ND 42 100 10 03/25/2022 22:41 Hexachloroethane ND 0.21 1.0 10 03/25/2022 22:41
Indeno (1,2,3-cd) pyrene ND 0.28 1.0 10 03/25/2022 22:41 Isophorone ND 5.5 20 10 03/25/2022 22:41
1-Methylnaphthalene ND 0.026 0.10 10 03/25/2022 22:41
2-Methylnaphthalene ND 0.038 0.10 10 03/25/2022 22:41
2-Methylphenol (o-Cresol) ND 4.8 20 10 03/25/2022 22:41 3 & 4-Methylphenol (m,p-Cresol) ND 3.7 20 10 03/25/2022 22:41 Naphthalene ND 0.25 0.50 10 03/25/2022 22:41
2-Nitroaniline ND 25 100 10 03/25/2022 22:41
3-Nitroaniline ND 19 100 10 03/25/2022 22:41
4-Nitroaniline ND 22 100 10 03/25/2022 22:41
Nitrobenzene ND 4.4 20 10 03/25/2022 22:41
2-Nitrophenol ND 25 100 10 03/25/2022 22:41
4-Nitrophenol ND 28 100 10 03/25/2022 22:41
N-Nitrosodiphenylamine ND 2.3 20 10 03/25/2022 22:41
N-Nitrosodi-n-propylamine ND 6.3 20 10 03/25/2022 22:41 Pentachlorophenol ND 2.3 5.0 10 03/25/2022 22:41
Phenanthrene ND 0.054 0.10 10 03/25/2022 22:41
Phenol ND 0.14 0.40 10 03/25/2022 22:41
Pyrene ND 0.050 0.20 10 03/25/2022 22:41
Pyridine ND 3.7 20 10 03/25/2022 22:41
2,3,4,6-Tetrachlorophenol ND 6.3 20 10 03/25/2022 22:41 1,2,4-Trichlorobenzene ND 3.7 20 10 03/25/2022 22:41
2,4,5-Trichlorophenol ND 0.047 0.20 10 03/25/2022 22:41 2,4,6-Trichlorophenol ND 0.046 0.20 10 03/25/2022 22:41 CA ELAP 1644 • NELAP 4033ORELAP
(Cont.)

Analytical Report
McCampbell Analytical, Inc. 1534 Willow Pass Road, Pittsburg, CA 94565-1701 Toll Free Telephone: (877) 252-9262 / Fax: (925) 252-9269 http://www.mccampbell.com / E-mail: [email protected] "When Quality Counts" Client: Environmental Science Associates
Project: D181242.01; Ukiah Riverside Park
Date Received: 03/23/2022 12:14
Date Prepared: 03/25/2022
WorkOrder: 2203E13
Extraction Method: SW3550B
Analytical Method: SW8270C
Unit: mg/Kg
Semi-Volatile Organics
S-2 2203E13-002A Soil 03/23/2022 09:34 GC21 03252217.D 242025 Analytes Result Qualifiers MDL RL DF Date Analyzed
Client ID Lab ID Matrix Date Collected Instrument Batch ID Surrogates REC (%) Qualifiers Limits
Analyst(s): KVE Analytical Comments: a3,a4,c1
2-Fluorophenol 104 60-130 03/25/2022 22:41
Phenol-d5 89 50-130 03/25/2022 22:41
Nitrobenzene-d5 79 60-130 03/25/2022 22:41
2-Fluorobiphenyl 100 60-130 03/25/2022 22:41
2,4,6-Tribromophenol 152 S 50-130 03/25/2022 22:41
4-Terphenyl-d14 80 50-130 03/25/2022 22:41
CA ELAP 1644 • NELAP 4033ORELAP
(Cont.)

Analytical Report
McCampbell Analytical, Inc. 1534 Willow Pass Road, Pittsburg, CA 94565-1701 Toll Free Telephone: (877) 252-9262 / Fax: (925) 252-9269 http://www.mccampbell.com / E-mail: [email protected] "When Quality Counts" Client: Environmental Science Associates
Project: D181242.01; Ukiah Riverside Park
Date Received: 03/23/2022 12:14
Date Prepared: 03/25/2022
WorkOrder: 2203E13
Extraction Method: SW3550B
Analytical Method: SW8270C
Unit: mg/Kg
Semi-Volatile Organics
S-3 2203E13-003A Soil 03/23/2022 09:13 GC21 03252218.D 242025 Analytes Result Qualifiers MDL RL DF Date Analyzed
Client ID Lab ID Matrix Date Collected Instrument Batch ID Acenaphthene ND 0.00035 0.0013 1 03/25/2022 23:08
Acenaphthylene ND 0.00028 0.0013 1 03/25/2022 23:08
Acetochlor ND 0.044 0.25 1 03/25/2022 23:08
Anthracene ND 0.00057 0.0013 1 03/25/2022 23:08
Benzidine ND 0.36 1.2 1 03/25/2022 23:08
Benzo (a) anthracene ND 0.0036 0.013 1 03/25/2022 23:08 Benzo (a) pyrene 0.0014 J 0.00070 0.0025 1 03/25/2022 23:08 Benzo (b) fluoranthene 0.0025 J 0.0013 0.0025 1 03/25/2022 23:08 Benzo (g,h,i) perylene 0.0022 J 0.00089 0.0025 1 03/25/2022 23:08 Benzo (k) fluoranthene ND 0.0010 0.0025 1 03/25/2022 23:08 Benzyl Alcohol ND 0.55 1.2 1 03/25/2022 23:08
1,1-Biphenyl ND 0.0029 0.013 1 03/25/2022 23:08
Bis (2-chloroethoxy) Methane ND 0.030 0.25 1 03/25/2022 23:08 Bis (2-chloroethyl) Ether ND 0.00036 0.0013 1 03/25/2022 23:08 Bis (2-chloroisopropyl) Ether ND 0.0012 0.0025 1 03/25/2022 23:08 Bis (2-ethylhexyl) Adipate ND 0.085 0.25 1 03/25/2022 23:08 Bis (2-ethylhexyl) Phthalate 0.0054 J 0.0047 0.013 1 03/25/2022 23:08 4-Bromophenyl Phenyl Ether ND 0.040 0.25 1 03/25/2022 23:08 Butylbenzyl Phthalate ND 0.0036 0.013 1 03/25/2022 23:08 4-Chloroaniline ND 0.00092 0.0013 1 03/25/2022 23:08
4-Chloro-3-methylphenol ND 0.062 0.25 1 03/25/2022 23:08 2-Chloronaphthalene ND 0.041 0.25 1 03/25/2022 23:08
2-Chlorophenol ND 0.0024 0.013 1 03/25/2022 23:08
4-Chlorophenyl Phenyl Ether ND 0.066 0.25 1 03/25/2022 23:08 Chrysene 0.0015 J 0.00067 0.0025 1 03/25/2022 23:08
Dibenzo (a,h) anthracene ND 0.0011 0.0025 1 03/25/2022 23:08 Dibenzofuran 0.00028 J 0.000093 0.0013 1 03/25/2022 23:08 Di-n-butyl Phthalate ND 0.0044 0.013 1 03/25/2022 23:08 1,2-Dichlorobenzene ND 0.053 0.25 1 03/25/2022 23:08
1,3-Dichlorobenzene ND 0.042 0.25 1 03/25/2022 23:08
1,4-Dichlorobenzene ND 0.049 0.25 1 03/25/2022 23:08
3,3-Dichlorobenzidine ND 0.0026 0.013 1 03/25/2022 23:08 2,4-Dichlorophenol ND 0.0012 0.0025 1 03/25/2022 23:08
Diethyl Phthalate ND 0.0040 0.013 1 03/25/2022 23:08
2,4-Dimethylphenol ND 0.044 0.25 1 03/25/2022 23:08
Dimethyl Phthalate ND 0.0019 0.0025 1 03/25/2022 23:08
4,6-Dinitro-2-methylphenol ND 0.41 1.2 1 03/25/2022 23:08 CA ELAP 1644 • NELAP 4033ORELAP
(Cont.)

Analytical Report
McCampbell Analytical, Inc. 1534 Willow Pass Road, Pittsburg, CA 94565-1701 Toll Free Telephone: (877) 252-9262 / Fax: (925) 252-9269 http://www.mccampbell.com / E-mail: [email protected] "When Quality Counts" Client: Environmental Science Associates
Project: D181242.01; Ukiah Riverside Park
Date Received: 03/23/2022 12:14
Date Prepared: 03/25/2022
WorkOrder: 2203E13
Extraction Method: SW3550B
Analytical Method: SW8270C
Unit: mg/Kg
Semi-Volatile Organics
S-3 2203E13-003A Soil 03/23/2022 09:13 GC21 03252218.D 242025 Analytes Result Qualifiers MDL RL DF Date Analyzed
Client ID Lab ID Matrix Date Collected Instrument Batch ID 2,4-Dinitrophenol ND 0.11 0.25 1 03/25/2022 23:08
2,4-Dinitrotoluene ND 0.0036 0.013 1 03/25/2022 23:08
2,6-Dinitrotoluene ND 0.062 0.12 1 03/25/2022 23:08
Di-n-octyl Phthalate ND 0.20 0.50 1 03/25/2022 23:08
1,2-Diphenylhydrazine ND 0.038 0.25 1 03/25/2022 23:08
Fluoranthene 0.0013 J 0.00079 0.0025 1 03/25/2022 23:08 Fluorene ND 0.0010 0.0025 1 03/25/2022 23:08
Hexachlorobenzene ND 0.0012 0.0025 1 03/25/2022 23:08
Hexachlorobutadiene ND 0.00019 0.0013 1 03/25/2022 23:08 Hexachlorocyclopentadiene ND 0.52 1.2 1 03/25/2022 23:08 Hexachloroethane ND 0.0026 0.013 1 03/25/2022 23:08
Indeno (1,2,3-cd) pyrene ND 0.0035 0.013 1 03/25/2022 23:08 Isophorone ND 0.069 0.25 1 03/25/2022 23:08
1-Methylnaphthalene 0.0011 J 0.00033 0.0013 1 03/25/2022 23:08 2-Methylnaphthalene 0.0019 0.00048 0.0013 1 03/25/2022 23:08 2-Methylphenol (o-Cresol) ND 0.060 0.25 1 03/25/2022 23:08 3 & 4-Methylphenol (m,p-Cresol) ND 0.046 0.25 1 03/25/2022 23:08 Naphthalene ND 0.0031 0.0062 1 03/25/2022 23:08
2-Nitroaniline ND 0.31 1.2 1 03/25/2022 23:08
3-Nitroaniline ND 0.24 1.2 1 03/25/2022 23:08
4-Nitroaniline ND 0.28 1.2 1 03/25/2022 23:08
Nitrobenzene ND 0.055 0.25 1 03/25/2022 23:08
2-Nitrophenol ND 0.31 1.2 1 03/25/2022 23:08
4-Nitrophenol ND 0.35 1.2 1 03/25/2022 23:08
N-Nitrosodiphenylamine ND 0.029 0.25 1 03/25/2022 23:08 N-Nitrosodi-n-propylamine ND 0.079 0.25 1 03/25/2022 23:08 Pentachlorophenol ND 0.029 0.062 1 03/25/2022 23:08
Phenanthrene 0.0042 0.00068 0.0013 1 03/25/2022 23:08
Phenol ND 0.0018 0.0050 1 03/25/2022 23:08
Pyrene 0.0014 J 0.00063 0.0025 1 03/25/2022 23:08
Pyridine ND 0.046 0.25 1 03/25/2022 23:08
2,3,4,6-Tetrachlorophenol ND 0.079 0.25 1 03/25/2022 23:08 1,2,4-Trichlorobenzene ND 0.046 0.25 1 03/25/2022 23:08 2,4,5-Trichlorophenol ND 0.00059 0.0025 1 03/25/2022 23:08 2,4,6-Trichlorophenol ND 0.00057 0.0025 1 03/25/2022 23:08 CA ELAP 1644 • NELAP 4033ORELAP
(Cont.)

Analytical Report
McCampbell Analytical, Inc. 1534 Willow Pass Road, Pittsburg, CA 94565-1701 Toll Free Telephone: (877) 252-9262 / Fax: (925) 252-9269 http://www.mccampbell.com / E-mail: [email protected] "When Quality Counts" Client: Environmental Science Associates
Project: D181242.01; Ukiah Riverside Park
Date Received: 03/23/2022 12:14
Date Prepared: 03/25/2022
WorkOrder: 2203E13
Extraction Method: SW3550B
Analytical Method: SW8270C
Unit: mg/Kg
Semi-Volatile Organics
S-3 2203E13-003A Soil 03/23/2022 09:13 GC21 03252218.D 242025 Analytes Result Qualifiers MDL RL DF Date Analyzed
Client ID Lab ID Matrix Date Collected Instrument Batch ID Surrogates REC (%) Limits
Analyst(s): KVE
2-Fluorophenol 91 60-130 03/25/2022 23:08
Phenol-d5 88 50-130 03/25/2022 23:08
Nitrobenzene-d5 79 60-130 03/25/2022 23:08
2-Fluorobiphenyl 86 60-130 03/25/2022 23:08
2,4,6-Tribromophenol 70 50-130 03/25/2022 23:08
4-Terphenyl-d14 84 50-130 03/25/2022 23:08
CA ELAP 1644 • NELAP 4033ORELAP
(Cont.)

Analytical Report
McCampbell Analytical, Inc. 1534 Willow Pass Road, Pittsburg, CA 94565-1701 Toll Free Telephone: (877) 252-9262 / Fax: (925) 252-9269 http://www.mccampbell.com / E-mail: [email protected] "When Quality Counts" Client: Environmental Science Associates
Project: D181242.01; Ukiah Riverside Park
Date Received: 03/23/2022 12:14
Date Prepared: 03/25/2022
WorkOrder: 2203E13
Extraction Method: SW3550B
Analytical Method: SW8270C
Unit: mg/Kg
Semi-Volatile Organics
S-4 2203E13-004A Soil 03/23/2022 09:24 GC21 03252219.D 242025 Analytes Result Qualifiers MDL RL DF Date Analyzed
Client ID Lab ID Matrix Date Collected Instrument Batch ID Acenaphthene ND 0.014 0.052 5 03/25/2022 23:34
Acenaphthylene ND 0.011 0.052 5 03/25/2022 23:34
Acetochlor ND 1.8 10 5 03/25/2022 23:34
Anthracene ND 0.023 0.052 5 03/25/2022 23:34
Benzidine ND 14 50 5 03/25/2022 23:34
Benzo (a) anthracene ND 0.14 0.52 5 03/25/2022 23:34
Benzo (a) pyrene 0.081 J 0.028 0.10 5 03/25/2022 23:34
Benzo (b) fluoranthene 0.10 J 0.052 0.10 5 03/25/2022 23:34 Benzo (g,h,i) perylene 0.090 J 0.036 0.10 5 03/25/2022 23:34 Benzo (k) fluoranthene 0.043 J 0.040 0.10 5 03/25/2022 23:34 Benzyl Alcohol ND 22 50 5 03/25/2022 23:34
1,1-Biphenyl ND 0.12 0.52 5 03/25/2022 23:34
Bis (2-chloroethoxy) Methane ND 1.2 10 5 03/25/2022 23:34 Bis (2-chloroethyl) Ether ND 0.014 0.052 5 03/25/2022 23:34 Bis (2-chloroisopropyl) Ether ND 0.050 0.10 5 03/25/2022 23:34 Bis (2-ethylhexyl) Adipate ND 3.4 10 5 03/25/2022 23:34 Bis (2-ethylhexyl) Phthalate ND 0.19 0.52 5 03/25/2022 23:34 4-Bromophenyl Phenyl Ether ND 1.6 10 5 03/25/2022 23:34 Butylbenzyl Phthalate ND 0.14 0.52 5 03/25/2022 23:34
4-Chloroaniline ND 0.037 0.052 5 03/25/2022 23:34
4-Chloro-3-methylphenol ND 2.5 10 5 03/25/2022 23:34
2-Chloronaphthalene ND 1.6 10 5 03/25/2022 23:34
2-Chlorophenol ND 0.096 0.52 5 03/25/2022 23:34
4-Chlorophenyl Phenyl Ether ND 2.6 10 5 03/25/2022 23:34 Chrysene 0.059 J 0.027 0.10 5 03/25/2022 23:34
Dibenzo (a,h) anthracene ND 0.044 0.10 5 03/25/2022 23:34 Dibenzofuran ND 0.0037 0.052 5 03/25/2022 23:34
Di-n-butyl Phthalate ND 0.18 0.52 5 03/25/2022 23:34
1,2-Dichlorobenzene ND 2.1 10 5 03/25/2022 23:34
1,3-Dichlorobenzene ND 1.7 10 5 03/25/2022 23:34
1,4-Dichlorobenzene ND 2.0 10 5 03/25/2022 23:34
3,3-Dichlorobenzidine ND 0.10 0.52 5 03/25/2022 23:34
2,4-Dichlorophenol ND 0.050 0.10 5 03/25/2022 23:34
Diethyl Phthalate ND 0.16 0.52 5 03/25/2022 23:34
2,4-Dimethylphenol ND 1.8 10 5 03/25/2022 23:34
Dimethyl Phthalate ND 0.076 0.10 5 03/25/2022 23:34
4,6-Dinitro-2-methylphenol ND 16 50 5 03/25/2022 23:34
CA ELAP 1644 • NELAP 4033ORELAP
(Cont.)

Analytical Report
McCampbell Analytical, Inc. 1534 Willow Pass Road, Pittsburg, CA 94565-1701 Toll Free Telephone: (877) 252-9262 / Fax: (925) 252-9269 http://www.mccampbell.com / E-mail: [email protected] "When Quality Counts" Client: Environmental Science Associates
Project: D181242.01; Ukiah Riverside Park
Date Received: 03/23/2022 12:14
Date Prepared: 03/25/2022
WorkOrder: 2203E13
Extraction Method: SW3550B
Analytical Method: SW8270C
Unit: mg/Kg
Semi-Volatile Organics
S-4 2203E13-004A Soil 03/23/2022 09:24 GC21 03252219.D 242025 Analytes Result Qualifiers MDL RL DF Date Analyzed
Client ID Lab ID Matrix Date Collected Instrument Batch ID 2,4-Dinitrophenol ND 4.4 10 5 03/25/2022 23:34
2,4-Dinitrotoluene ND 0.14 0.52 5 03/25/2022 23:34
2,6-Dinitrotoluene ND 2.5 5.0 5 03/25/2022 23:34
Di-n-octyl Phthalate ND 8.0 20 5 03/25/2022 23:34
1,2-Diphenylhydrazine ND 1.5 10 5 03/25/2022 23:34
Fluoranthene 0.10 0.032 0.10 5 03/25/2022 23:34
Fluorene ND 0.040 0.10 5 03/25/2022 23:34
Hexachlorobenzene ND 0.048 0.10 5 03/25/2022 23:34
Hexachlorobutadiene ND 0.0076 0.052 5 03/25/2022 23:34
Hexachlorocyclopentadiene ND 21 50 5 03/25/2022 23:34
Hexachloroethane ND 0.10 0.52 5 03/25/2022 23:34
Indeno (1,2,3-cd) pyrene ND 0.14 0.52 5 03/25/2022 23:34 Isophorone ND 2.8 10 5 03/25/2022 23:34
1-Methylnaphthalene ND 0.013 0.052 5 03/25/2022 23:34
2-Methylnaphthalene ND 0.019 0.052 5 03/25/2022 23:34
2-Methylphenol (o-Cresol) ND 2.4 10 5 03/25/2022 23:34
3 & 4-Methylphenol (m,p-Cresol) ND 1.8 10 5 03/25/2022 23:34 Naphthalene ND 0.13 0.25 5 03/25/2022 23:34
2-Nitroaniline ND 12 50 5 03/25/2022 23:34
3-Nitroaniline ND 9.6 50 5 03/25/2022 23:34
4-Nitroaniline ND 11 50 5 03/25/2022 23:34
Nitrobenzene ND 2.2 10 5 03/25/2022 23:34
2-Nitrophenol ND 12 50 5 03/25/2022 23:34
4-Nitrophenol ND 14 50 5 03/25/2022 23:34
N-Nitrosodiphenylamine ND 1.2 10 5 03/25/2022 23:34
N-Nitrosodi-n-propylamine ND 3.2 10 5 03/25/2022 23:34
Pentachlorophenol ND 1.2 2.5 5 03/25/2022 23:34
Phenanthrene 0.041 J 0.027 0.052 5 03/25/2022 23:34
Phenol ND 0.072 0.20 5 03/25/2022 23:34
Pyrene 0.072 J 0.025 0.10 5 03/25/2022 23:34
Pyridine ND 1.8 10 5 03/25/2022 23:34
2,3,4,6-Tetrachlorophenol ND 3.2 10 5 03/25/2022 23:34
1,2,4-Trichlorobenzene ND 1.8 10 5 03/25/2022 23:34
2,4,5-Trichlorophenol ND 0.024 0.10 5 03/25/2022 23:34
2,4,6-Trichlorophenol ND 0.023 0.10 5 03/25/2022 23:34
CA ELAP 1644 • NELAP 4033ORELAP
(Cont.)

Analytical Report
McCampbell Analytical, Inc. 1534 Willow Pass Road, Pittsburg, CA 94565-1701 Toll Free Telephone: (877) 252-9262 / Fax: (925) 252-9269 http://www.mccampbell.com / E-mail: [email protected] "When Quality Counts" Client: Environmental Science Associates
Project: D181242.01; Ukiah Riverside Park
Date Received: 03/23/2022 12:14
Date Prepared: 03/25/2022
WorkOrder: 2203E13
Extraction Method: SW3550B
Analytical Method: SW8270C
Unit: mg/Kg
Semi-Volatile Organics
S-4 2203E13-004A Soil 03/23/2022 09:24 GC21 03252219.D 242025 Analytes Result Qualifiers MDL RL DF Date Analyzed
Client ID Lab ID Matrix Date Collected Instrument Batch ID Surrogates REC (%) Limits
Analyst(s): KVE Analytical Comments: a3,a4
2-Fluorophenol 108 60-130 03/25/2022 23:34
Phenol-d5 89 50-130 03/25/2022 23:34
Nitrobenzene-d5 96 60-130 03/25/2022 23:34
2-Fluorobiphenyl 90 60-130 03/25/2022 23:34
2,4,6-Tribromophenol 107 50-130 03/25/2022 23:34
4-Terphenyl-d14 74 50-130 03/25/2022 23:34
CA ELAP 1644 • NELAP 4033ORELAP

Analytical Report
McCampbell Analytical, Inc. 1534 Willow Pass Road, Pittsburg, CA 94565-1701 Toll Free Telephone: (877) 252-9262 / Fax: (925) 252-9269 http://www.mccampbell.com / E-mail: [email protected] "When Quality Counts" Client: Environmental Science Associates
Project: D181242.01; Ukiah Riverside Park
Date Received: 03/23/2022 12:14
Date Prepared: 03/24/2022
WorkOrder: 2203E13
Extraction Method: SW3050B
Analytical Method: SW6020
Unit: mg/Kg
CAM / CCR 17 Metals
S-1 2203E13-001A Soil 03/23/2022 09:00 ICP-MS5 248SMPL.d 241869 Analytes Result Qualifiers MDL RL DF Date Analyzed
Client ID Lab ID Matrix Date Collected Instrument Batch ID Antimony 0.33 J 0.16 0.50 1 03/24/2022 23:07
Arsenic 3.8 0.14 0.50 1 03/24/2022 23:07
Barium 130 0.68 5.0 1 03/24/2022 23:07
Beryllium 0.38 J 0.083 0.50 1 03/24/2022 23:07
Cadmium 0.12 J 0.094 0.50 1 03/24/2022 23:07
Chromium 47 0.13 0.50 1 03/24/2022 23:07
Cobalt 10 0.069 0.50 1 03/24/2022 23:07
Copper 21 0.23 0.50 1 03/24/2022 23:07
Lead 21 0.069 0.50 1 03/24/2022 23:07
Mercury 0.077 0.038 0.050 1 03/24/2022 23:07
Molybdenum 0.27 J 0.14 0.50 1 03/24/2022 23:07
Nickel 63 0.081 0.50 1 03/24/2022 23:07
Selenium ND 0.32 0.50 1 03/24/2022 23:07
Silver 0.14 J 0.11 0.50 1 03/24/2022 23:07
Thallium ND 0.072 0.50 1 03/24/2022 23:07
Vanadium 40 0.15 0.50 1 03/24/2022 23:07
Zinc 65 3.2 5.0 1 03/24/2022 23:07
Surrogates REC (%) Limits
Analyst(s): DB
Terbium 100 70-130 03/24/2022 23:07
CA ELAP 1644 • NELAP 4033ORELAP
(Cont.)

Analytical Report
McCampbell Analytical, Inc. 1534 Willow Pass Road, Pittsburg, CA 94565-1701 Toll Free Telephone: (877) 252-9262 / Fax: (925) 252-9269 http://www.mccampbell.com / E-mail: [email protected] "When Quality Counts" Client: Environmental Science Associates
Project: D181242.01; Ukiah Riverside Park
Date Received: 03/23/2022 12:14
Date Prepared: 03/24/2022
WorkOrder: 2203E13
Extraction Method: SW3050B
Analytical Method: SW6020
Unit: mg/Kg
CAM / CCR 17 Metals
S-2 2203E13-002A Soil 03/23/2022 09:34 ICP-MS5 249SMPL.d 241869 Analytes Result Qualifiers MDL RL DF Date Analyzed
Client ID Lab ID Matrix Date Collected Instrument Batch ID Antimony 0.80 0.16 0.50 1 03/24/2022 23:10
Arsenic 6.4 0.14 0.50 1 03/24/2022 23:10
Barium 180 0.68 5.0 1 03/24/2022 23:10
Beryllium 0.37 J 0.083 0.50 1 03/24/2022 23:10
Cadmium 0.58 0.094 0.50 1 03/24/2022 23:10
Chromium 49 0.13 0.50 1 03/24/2022 23:10
Cobalt 10 0.069 0.50 1 03/24/2022 23:10
Copper 51 0.23 0.50 1 03/24/2022 23:10
Lead 140 0.069 0.50 1 03/24/2022 23:10
Mercury 0.12 0.038 0.050 1 03/24/2022 23:10
Molybdenum 0.52 0.14 0.50 1 03/24/2022 23:10
Nickel 60 0.081 0.50 1 03/24/2022 23:10
Selenium 0.58 0.32 0.50 1 03/24/2022 23:10
Silver 0.19 J 0.11 0.50 1 03/24/2022 23:10
Thallium ND 0.072 0.50 1 03/24/2022 23:10
Vanadium 40 0.15 0.50 1 03/24/2022 23:10
Zinc 270 3.2 5.0 1 03/24/2022 23:10
Surrogates REC (%) Limits
Analyst(s): DB
Terbium 98 70-130 03/24/2022 23:10
CA ELAP 1644 • NELAP 4033ORELAP
(Cont.)

Analytical Report
McCampbell Analytical, Inc. 1534 Willow Pass Road, Pittsburg, CA 94565-1701 Toll Free Telephone: (877) 252-9262 / Fax: (925) 252-9269 http://www.mccampbell.com / E-mail: [email protected] "When Quality Counts" Client: Environmental Science Associates
Project: D181242.01; Ukiah Riverside Park
Date Received: 03/23/2022 12:14
Date Prepared: 03/24/2022
WorkOrder: 2203E13
Extraction Method: SW3050B
Analytical Method: SW6020
Unit: mg/Kg
CAM / CCR 17 Metals
S-3 2203E13-003A Soil 03/23/2022 09:13 ICP-MS5 250SMPL.d 241869 Analytes Result Qualifiers MDL RL DF Date Analyzed
Client ID Lab ID Matrix Date Collected Instrument Batch ID Antimony 0.45 J 0.16 0.50 1 03/24/2022 23:14
Arsenic 5.4 0.14 0.50 1 03/24/2022 23:14
Barium 160 0.68 5.0 1 03/24/2022 23:14
Beryllium 0.46 J 0.083 0.50 1 03/24/2022 23:14
Cadmium 0.11 J 0.094 0.50 1 03/24/2022 23:14
Chromium 69 0.13 0.50 1 03/24/2022 23:14
Cobalt 13 0.069 0.50 1 03/24/2022 23:14
Copper 23 0.23 0.50 1 03/24/2022 23:14
Lead 25 0.069 0.50 1 03/24/2022 23:14
Mercury ND 0.038 0.050 1 03/24/2022 23:14
Molybdenum 0.30 J 0.14 0.50 1 03/24/2022 23:14
Nickel 87 0.081 0.50 1 03/24/2022 23:14
Selenium ND 0.32 0.50 1 03/24/2022 23:14
Silver 0.15 J 0.11 0.50 1 03/24/2022 23:14
Thallium ND 0.072 0.50 1 03/24/2022 23:14
Vanadium 54 0.15 0.50 1 03/24/2022 23:14
Zinc 60 3.2 5.0 1 03/24/2022 23:14
Surrogates REC (%) Limits
Analyst(s): DB
Terbium 100 70-130 03/24/2022 23:14
CA ELAP 1644 • NELAP 4033ORELAP
(Cont.)

Analytical Report
McCampbell Analytical, Inc. 1534 Willow Pass Road, Pittsburg, CA 94565-1701 Toll Free Telephone: (877) 252-9262 / Fax: (925) 252-9269 http://www.mccampbell.com / E-mail: [email protected] "When Quality Counts" Client: Environmental Science Associates
Project: D181242.01; Ukiah Riverside Park
Date Received: 03/23/2022 12:14
Date Prepared: 03/24/2022
WorkOrder: 2203E13
Extraction Method: SW3050B
Analytical Method: SW6020
Unit: mg/Kg
CAM / CCR 17 Metals
S-4 2203E13-004A Soil 03/23/2022 09:24 ICP-MS4 145SMPL.d 241869 Analytes Result Qualifiers MDL RL DF Date Analyzed
Client ID Lab ID Matrix Date Collected Instrument Batch ID Antimony 1.6 0.16 0.50 1 03/25/2022 12:38
Arsenic 7.1 0.14 0.50 1 03/25/2022 12:38
Barium 210 0.68 5.0 1 03/25/2022 12:38
Beryllium 0.62 0.083 0.50 1 03/25/2022 12:38
Cadmium 0.15 J 0.094 0.50 1 03/25/2022 12:38
Chromium 82 0.13 0.50 1 03/25/2022 12:38
Cobalt 15 0.069 0.50 1 03/25/2022 12:38
Copper 42 0.23 0.50 1 03/25/2022 12:38
Lead 67 0.069 0.50 1 03/25/2022 12:38
Mercury 0.14 0.038 0.050 1 03/25/2022 12:38
Molybdenum 0.88 0.14 0.50 1 03/25/2022 12:38
Nickel 110 0.081 0.50 1 03/25/2022 12:38
Selenium ND 0.32 0.50 1 03/25/2022 12:38
Silver 0.51 0.11 0.50 1 03/25/2022 12:38
Thallium 0.12 J 0.072 0.50 1 03/25/2022 12:38
Vanadium 59 0.15 0.50 1 03/25/2022 12:38
Zinc 97 3.2 5.0 1 03/25/2022 12:38
Surrogates REC (%) Limits
Analyst(s): AL
Terbium 101 70-130 03/25/2022 12:38
CA ELAP 1644 • NELAP 4033ORELAP

Analytical Report
McCampbell Analytical, Inc. 1534 Willow Pass Road, Pittsburg, CA 94565-1701 Toll Free Telephone: (877) 252-9262 / Fax: (925) 252-9269 http://www.mccampbell.com / E-mail: [email protected] "When Quality Counts" Client: Environmental Science Associates
Project: D181242.01; Ukiah Riverside Park
Date Received: 03/23/2022 12:14
Date Prepared: 03/23/2022
WorkOrder: 2203E13
Extraction Method: SW5035
Analytical Method: SW8021B/8015Bm
Unit: mg/Kg
Gasoline Range (C6-C12) Volatile Hydrocarbons as Gasoline with BTEX and MTBE S-1 2203E13-001A Soil 03/23/2022 09:00 GC3 03242235.D 241885 Analytes Result MDL RL DF Date Analyzed
Client ID Lab ID Matrix Date Collected Instrument Batch ID TPH(g) (C6-C12) ND 0.55 1.0 1 03/25/2022 04:11
MTBE --- 0.0026 0.050 1 03/25/2022 04:11
Benzene --- 0.0018 0.0050 1 03/25/2022 04:11
Toluene --- 0.0022 0.0050 1 03/25/2022 04:11
Ethylbenzene --- 0.0015 0.0050 1 03/25/2022 04:11
m,p-Xylene --- 0.0026 0.010 1 03/25/2022 04:11
o-Xylene --- 0.00098 0.0050 1 03/25/2022 04:11
Xylenes --- NA 0.0050 1 03/25/2022 04:11
Surrogates REC (%) Limits
Analyst(s): IA
2-Fluorotoluene 91 62-126 03/25/2022 04:11
S-2 2203E13-002A Soil 03/23/2022 09:34 GC3 03242236.D 241885 Analytes Result MDL RL DF Date Analyzed
Client ID Lab ID Matrix Date Collected Instrument Batch ID TPH(g) (C6-C12) ND 0.55 1.0 1 03/25/2022 04:41
MTBE --- 0.0026 0.050 1 03/25/2022 04:41
Benzene --- 0.0018 0.0050 1 03/25/2022 04:41
Toluene --- 0.0022 0.0050 1 03/25/2022 04:41
Ethylbenzene --- 0.0015 0.0050 1 03/25/2022 04:41
m,p-Xylene --- 0.0026 0.010 1 03/25/2022 04:41
o-Xylene --- 0.00098 0.0050 1 03/25/2022 04:41
Xylenes --- NA 0.0050 1 03/25/2022 04:41
Surrogates REC (%) Limits
Analyst(s): IA
2-Fluorotoluene 86 62-126 03/25/2022 04:41
CA ELAP 1644 • NELAP 4033ORELAP
(Cont.)

Analytical Report
McCampbell Analytical, Inc. 1534 Willow Pass Road, Pittsburg, CA 94565-1701 Toll Free Telephone: (877) 252-9262 / Fax: (925) 252-9269 http://www.mccampbell.com / E-mail: [email protected] "When Quality Counts" Client: Environmental Science Associates
Project: D181242.01; Ukiah Riverside Park
Date Received: 03/23/2022 12:14
Date Prepared: 03/23/2022
WorkOrder: 2203E13
Extraction Method: SW5035
Analytical Method: SW8021B/8015Bm
Unit: mg/Kg
Gasoline Range (C6-C12) Volatile Hydrocarbons as Gasoline with BTEX and MTBE S-3 2203E13-003A Soil 03/23/2022 09:13 GC3 03242237.D 241885 Analytes Result MDL RL DF Date Analyzed
Client ID Lab ID Matrix Date Collected Instrument Batch ID TPH(g) (C6-C12) ND 0.55 1.0 1 03/25/2022 05:10
MTBE --- 0.0026 0.050 1 03/25/2022 05:10
Benzene --- 0.0018 0.0050 1 03/25/2022 05:10
Toluene --- 0.0022 0.0050 1 03/25/2022 05:10
Ethylbenzene --- 0.0015 0.0050 1 03/25/2022 05:10
m,p-Xylene --- 0.0026 0.010 1 03/25/2022 05:10
o-Xylene --- 0.00098 0.0050 1 03/25/2022 05:10
Xylenes --- NA 0.0050 1 03/25/2022 05:10
Surrogates REC (%) Limits
Analyst(s): IA
2-Fluorotoluene 94 62-126 03/25/2022 05:10
S-4 2203E13-004A Soil 03/23/2022 09:24 GC3 03242238.D 241885 Analytes Result MDL RL DF Date Analyzed
Client ID Lab ID Matrix Date Collected Instrument Batch ID TPH(g) (C6-C12) ND 0.55 1.0 1 03/25/2022 05:40
MTBE --- 0.0026 0.050 1 03/25/2022 05:40
Benzene --- 0.0018 0.0050 1 03/25/2022 05:40
Toluene --- 0.0022 0.0050 1 03/25/2022 05:40
Ethylbenzene --- 0.0015 0.0050 1 03/25/2022 05:40
m,p-Xylene --- 0.0026 0.010 1 03/25/2022 05:40
o-Xylene --- 0.00098 0.0050 1 03/25/2022 05:40
Xylenes --- NA 0.0050 1 03/25/2022 05:40
Surrogates REC (%) Limits
Analyst(s): IA
2-Fluorotoluene 88 62-126 03/25/2022 05:40
CA ELAP 1644 • NELAP 4033ORELAP

Analytical Report
McCampbell Analytical, Inc. 1534 Willow Pass Road, Pittsburg, CA 94565-1701 Toll Free Telephone: (877) 252-9262 / Fax: (925) 252-9269 http://www.mccampbell.com / E-mail: [email protected] "When Quality Counts" Client: Environmental Science Associates
Project: D181242.01; Ukiah Riverside Park
Date Received: 03/23/2022 12:14
Date Prepared: 03/23/2022
WorkOrder: 2203E13
Extraction Method: SW3550B
Analytical Method: SW8015B
Unit: mg/Kg
Total Extractable Petroleum Hydrocarbons w/out SG Clean-Up S-1 2203E13-001A Soil 03/23/2022 09:00 GC9a 03282232.D 241886 Analytes Result MDL RL DF Date Analyzed
Client ID Lab ID Matrix Date Collected Instrument Batch ID TPH-Diesel (C10-C23) 2.1 0.78 2.0 1 03/28/2022 19:53
TPH-Motor Oil (C18-C36) 40 4.6 10 1 03/28/2022 19:53
Surrogates REC (%) Limits
Analyst(s): JIS Analytical Comments: e2,e7
C9 87 70-130 03/28/2022 19:53
S-2 2203E13-002A Soil 03/23/2022 09:34 GC9a 03282242.D 241886 Analytes Result MDL RL DF Date Analyzed
Client ID Lab ID Matrix Date Collected Instrument Batch ID TPH-Diesel (C10-C23) 2.4 0.78 2.0 1 03/28/2022 23:07
TPH-Motor Oil (C18-C36) 67 4.6 10 1 03/28/2022 23:07
Surrogates REC (%) Limits
Analyst(s): JIS Analytical Comments: e2,e7
C9 86 70-130 03/28/2022 23:07
S-3 2203E13-003A Soil 03/23/2022 09:13 GC11A 03282254.D 241886 Analytes Result Qualifiers MDL RL DF Date Analyzed
Client ID Lab ID Matrix Date Collected Instrument Batch ID TPH-Diesel (C10-C23) 1.1 J 0.78 2.0 1 03/29/2022 03:20
TPH-Motor Oil (C18-C36) ND 4.6 10 1 03/29/2022 03:20
Surrogates REC (%) Limits
Analyst(s): JIS
C9 95 70-130 03/29/2022 03:20
CA ELAP 1644 • NELAP 4033ORELAP
(Cont.)

Analytical Report
McCampbell Analytical, Inc. 1534 Willow Pass Road, Pittsburg, CA 94565-1701 Toll Free Telephone: (877) 252-9262 / Fax: (925) 252-9269 http://www.mccampbell.com / E-mail: [email protected] "When Quality Counts" Client: Environmental Science Associates
Project: D181242.01; Ukiah Riverside Park
Date Received: 03/23/2022 12:14
Date Prepared: 03/23/2022
WorkOrder: 2203E13
Extraction Method: SW3550B
Analytical Method: SW8015B
Unit: mg/Kg
Total Extractable Petroleum Hydrocarbons w/out SG Clean-Up S-4 2203E13-004A Soil 03/23/2022 09:24 GC9b 03282251.D 241886 Analytes Result Qualifiers MDL RL DF Date Analyzed
Client ID Lab ID Matrix Date Collected Instrument Batch ID TPH-Diesel (C10-C23) 1.6 J 0.78 2.0 1 03/29/2022 02:21
TPH-Motor Oil (C18-C36) 18 4.6 10 1 03/29/2022 02:21
Surrogates REC (%) Limits
Analyst(s): JIS Analytical Comments: e7
C9 87 70-130 03/29/2022 02:21
CA ELAP 1644 • NELAP 4033ORELAP

Quality Control Report
McCampbell Analytical, Inc. 1534 Willow Pass Road, Pittsburg, CA 94565-1701 Toll Free Telephone: (877) 252-9262 / Fax: (925) 252-9269 http://www.mccampbell.com / E-mail: [email protected] "When Quality Counts" Client: Environmental Science Associates
Project: D181242.01; Ukiah Riverside Park
Date Analyzed: 03/25/2022 - 03/29/2022
Date Prepared: 03/23/2022
WorkOrder: 2203E13
BatchID: 241888
Analytical Method: SW8081A/8082
Unit: mg/kg
Sample ID: MB/LCS/LCSD-241888
2203E13-004AMS/MSD
Instrument: GC22, GC23, GC40
Matrix: Soil
Extraction Method: SW3550B
QC Summary Report for SW8081A/8082
Analyte MB
Result

MDL RL SPK
Val
MB SS
%REC
MB SS
Limits
Aldrin ND 0.00039 0.0010 - - -
a-BHC ND 0.00049 0.0010 - - -
b-BHC ND 0.00027 0.0010 - - -
d-BHC ND 0.00033 0.0010 - - -
g-BHC ND 0.00033 0.0010 - - -
Chlordane (Technical) ND 0.012 0.025 - - -
a-Chlordane ND 0.00043 0.0010 - - -
g-Chlordane ND 0.00034 0.0010 - - -
p,p-DDD ND 0.00041 0.0010 - - -
p,p-DDE ND 0.00029 0.0010 - - -
p,p-DDT ND 0.00039 0.0010 - - -
Dieldrin ND 0.00038 0.0010 - - -
Endosulfan I ND 0.00035 0.0010 - - -
Endosulfan II ND 0.00033 0.0010 - - -
Endosulfan sulfate ND 0.00040 0.0010 - - -
Endrin ND 0.00038 0.0010 - - -
Endrin aldehyde ND 0.00044 0.0010 - - -
Endrin ketone ND 0.00029 0.0010 - - -
Heptachlor ND 0.00030 0.0010 - - -
Heptachlor epoxide ND 0.00030 0.0010 - - -
Hexachlorobenzene ND 0.00070 0.010 - - -
Hexachlorocyclopentadiene ND 0.00052 0.020 - - -
Methoxychlor ND 0.00045 0.0010 - - -
Toxaphene ND 0.033 0.050 - - -
Aroclor1016 ND 0.032 0.050 - - -
Aroclor1221 ND 0.032 0.050 - - -
Aroclor1232 ND 0.032 0.050 - - -
Aroclor1242 ND 0.032 0.050 - - -
Aroclor1248 ND 0.032 0.050 - - -
Aroclor1254 ND 0.032 0.050 - - -
Aroclor1260 ND 0.032 0.050 - - -
Surrogate Recovery
Decachlorobiphenyl 0.055 0.05 110 70-130
CA ELAP 1644 • NELAP 4033ORELAP
(Cont.)

Quality Control Report
McCampbell Analytical, Inc. 1534 Willow Pass Road, Pittsburg, CA 94565-1701 Toll Free Telephone: (877) 252-9262 / Fax: (925) 252-9269 http://www.mccampbell.com / E-mail: [email protected] "When Quality Counts" Client: Environmental Science Associates
Project: D181242.01; Ukiah Riverside Park
Date Analyzed: 03/25/2022 - 03/29/2022
Date Prepared: 03/23/2022
WorkOrder: 2203E13
BatchID: 241888
Analytical Method: SW8081A/8082
Unit: mg/kg
Sample ID: MB/LCS/LCSD-241888
2203E13-004AMS/MSD
Instrument: GC22, GC23, GC40
Matrix: Soil
Extraction Method: SW3550B
QC Summary Report for SW8081A/8082
Analyte LCS
Result
LCSD
Result
SPK
Val
LCS
%REC
LCSD
%REC

LCS/LCSD
Limits

RPD RPD
Limit
Aldrin 0.055 0.053 0.050 110 106 70-130 3.68 20
a-BHC 0.051 0.050 0.050 102 101 70-130 1.33 20
b-BHC 0.050 0.048 0.050 100 97 70-130 3.08 20
d-BHC 0.056 0.054 0.050 113 108 70-130 4.19 20
g-BHC 0.054 0.053 0.050 107 105 70-130 2.08 20
a-Chlordane 0.053 0.051 0.050 107 101 70-130 5.37 20
g-Chlordane 0.054 0.052 0.050 109 103 70-130 5.21 20
p,p-DDD 0.058 0.054 0.050 117 108 70-130 7.41 20
p,p-DDE 0.055 0.051 0.050 110 103 70-130 6.65 20
p,p-DDT 0.050 0.047 0.050 101 93 70-130 7.76 20
Dieldrin 0.055 0.052 0.050 109 103 70-130 5.84 20
Endosulfan I 0.053 0.050 0.050 106 100 70-130 5.32 20
Endosulfan II 0.052 0.049 0.050 105 98 70-130 6.22 20
Endosulfan sulfate 0.057 0.053 0.050 114 106 70-130 6.91 20 Endrin 0.058 0.055 0.050 117 110 70-130 6.12 20
Endrin aldehyde 0.049 0.046 0.050 98 92 70-130 6.08 20
Endrin ketone 0.053 0.049 0.050 105 98 70-130 6.44 20
Heptachlor 0.056 0.054 0.050 111 107 70-130 3.61 20
Heptachlor epoxide 0.052 0.051 0.050 105 102 70-130 3.12 20 Hexachlorobenzene 0.048 0.047 0.050 95 94 70-130 1.76 20 Hexachlorocyclopentadiene 0.033 0.035 0.050 65 71 50-130 8.02 20 Methoxychlor 0.050 0.046 0.050 100 92 70-130 8.08 20
Aroclor1016 0.15 0.15 0.15 97 99 70-130 1.66 20
Aroclor1260 0.16 0.16 0.15 106 107 70-130 0.849 20
Surrogate Recovery
Decachlorobiphenyl 0.058 0.054 0.050 116 107 70-130 7.63 20 Analyte MS
Result
MSD
Result
SPK
Val
SPKRef
Val
MS
%REC
MSD
%REC
MS/MSD
Limits

RPD RPD
Limit
MS
DF
Aldrin 10 0.040 0.038 0.050 ND<0.010 80 77 60-130 3.73 20 a-BHC 10 0.042 0.041 0.050 ND<0.010 85 82 60-130 3.09 20 b-BHC 10 0.042 0.038 0.050 ND<0.010 84 76 60-130 9.70 20 d-BHC 10 0.044 0.041 0.050 ND<0.010 88 82 60-130 6.28 20 g-BHC 10 0.038 0.036 0.050 ND<0.010 75 73 60-130 2.91 20 a-Chlordane 10 0.042 0.040 0.050 ND<0.010 83 80 60-130 4.19 20 g-Chlordane 10 0.041 0.039 0.050 ND<0.010 81 78 60-130 3.79 20 CA ELAP 1644 • NELAP 4033ORELAP
(Cont.)

Quality Control Report
McCampbell Analytical, Inc. 1534 Willow Pass Road, Pittsburg, CA 94565-1701 Toll Free Telephone: (877) 252-9262 / Fax: (925) 252-9269 http://www.mccampbell.com / E-mail: [email protected] "When Quality Counts" Client: Environmental Science Associates
Project: D181242.01; Ukiah Riverside Park
Date Analyzed: 03/25/2022 - 03/29/2022
Date Prepared: 03/23/2022
WorkOrder: 2203E13
BatchID: 241888
Analytical Method: SW8081A/8082
Unit: mg/kg
Sample ID: MB/LCS/LCSD-241888
2203E13-004AMS/MSD
Instrument: GC22, GC23, GC40
Matrix: Soil
Extraction Method: SW3550B
QC Summary Report for SW8081A/8082
Analyte MS
Result
MSD
Result
SPK
Val
SPKRef
Val
MS
%REC
MSD
%REC
MS/MSD
Limits

RPD RPD
Limit
MS
DF
p,p-DDD 10 0.043 0.040 0.050 ND<0.010 85 79 60-130 7.89 20 p,p-DDE 10 0.046 0.043 0.050 ND<0.010 93 85 60-130 8.39 20 p,p-DDT 10 0.044 0.040 0.050 ND<0.010 88 81 60-130 8.66 20 Dieldrin 10 0.042 0.040 0.050 ND<0.010 84 80 60-130 4.70 20 Endosulfan I 10 0.038 0.036 0.050 ND<0.010 76 72 60-130 4.82 20 Endosulfan II 10 0.041 0.038 0.050 ND<0.010 81 76 60-130 6.04 20 Endosulfan sulfate 10 0.043 0.039 0.050 ND<0.010 85 79 60-130 7.82 20 Endrin 10 0.043 0.041 0.050 ND<0.010 87 83 60-130 4.94 20 Endrin aldehyde 10 0.034 0.032 0.050 ND<0.010 68 65 60-130 4.28 20 Endrin ketone 10 0.034 0.033 0.050 ND<0.010 69 65 60-130 5.31 20 Heptachlor 10 0.044 0.043 0.050 ND<0.010 89 85 60-130 4.12 20 Heptachlor epoxide 10 0.041 0.039 0.050 ND<0.010 81 77 60-130 4.68 20 Hexachlorobenzene 10 0.045 0.044 0.050 ND<0.10 90 87 60-130 3.39 20 Hexachlorocyclopentadiene 10 0.031 0.034 0.050 ND<0.20 62 67 50-130 7.49 20 Methoxychlor 10 0.048 0.044 0.050 ND<0.010 95 89 60-130 7.12 20 Surrogate Recovery
Decachlorobiphenyl 10 0.051 0.047 0.050 101 94 60-130 7.60 20 CA ELAP 1644 • NELAP 4033ORELAP

Quality Control Report
McCampbell Analytical, Inc. 1534 Willow Pass Road, Pittsburg, CA 94565-1701 Toll Free Telephone: (877) 252-9262 / Fax: (925) 252-9269 http://www.mccampbell.com / E-mail: [email protected] "When Quality Counts" Client: Environmental Science Associates
Project: D181242.01; Ukiah Riverside Park
Date Analyzed: 03/24/2022 - 03/28/2022
Date Prepared: 03/22/2022
WorkOrder: 2203E13
BatchID: 241831
Analytical Method: SW8260B
Unit: mg/kg
Sample ID: MB/LCS/LCSD-241831
Instrument: GC16, GC18
Matrix: Soil
Extraction Method: SW5030B
QC Summary Report for SW8260B
Analyte MB
Result

MDL RL SPK
Val
MB SS
%REC
MB SS
Limits
Acetone ND 0.12 0.20 - - -
tert-Amyl methyl ether (TAME) ND 0.0012 0.0050 - - -
Benzene ND 0.00095 0.0050 - - -
Bromobenzene ND 0.0012 0.0050 - - -
Bromochloromethane ND 0.0011 0.0050 - - -
Bromodichloromethane ND 0.00023 0.0050 - - -
Bromoform ND 0.0038 0.0050 - - -
Bromomethane ND 0.0018 0.0050 - - -
2-Butanone (MEK) ND 0.040 0.10 - - -
t-Butyl alcohol (TBA) ND 0.024 0.050 - - -
n-Butyl benzene ND 0.0016 0.0050 - - -
sec-Butyl benzene ND 0.0018 0.0050 - - -
tert-Butyl benzene ND 0.0021 0.0050 - - -
Carbon Disulfide ND 0.0011 0.0050 - - -
Carbon Tetrachloride ND 0.00017 0.0050 - - -
Chlorobenzene ND 0.0012 0.0050 - - -
Chloroethane ND 0.0017 0.0050 - - -
Chloroform ND 0.00032 0.0050 - - -
Chloromethane ND 0.0017 0.0050 - - -
2-Chlorotoluene ND 0.0016 0.0050 - - -
4-Chlorotoluene ND 0.0013 0.0050 - - -
Dibromochloromethane ND 0.00040 0.0050 - - -
1,2-Dibromo-3-chloropropane ND 0.00048 0.00050 - - -
1,2-Dibromoethane (EDB) ND 0.00013 0.00025 - - -
Dibromomethane ND 0.0012 0.0050 - - -
1,2-Dichlorobenzene ND 0.0017 0.0050 - - -
1,3-Dichlorobenzene ND 0.0015 0.0050 - - -
1,4-Dichlorobenzene ND 0.0015 0.0050 - - -
Dichlorodifluoromethane ND 0.00063 0.0050 - - -
1,1-Dichloroethane ND 0.0015 0.0050 - - -
1,2-Dichloroethane (1,2-DCA) ND 0.000070 0.00010 - - -
1,1-Dichloroethene ND 0.00011 0.0050 - - -
cis-1,2-Dichloroethene ND 0.0012 0.0050 - - -
trans-1,2-Dichloroethene ND 0.0012 0.0050 - - -
1,2-Dichloropropane ND 0.0013 0.0050 - - -
1,3-Dichloropropane ND 0.00088 0.0050 - - -
2,2-Dichloropropane ND 0.0019 0.0050 - - -
1,1-Dichloropropene ND 0.0018 0.0050 - - -
CA ELAP 1644 • NELAP 4033ORELAP
(Cont.)

Quality Control Report
McCampbell Analytical, Inc. 1534 Willow Pass Road, Pittsburg, CA 94565-1701 Toll Free Telephone: (877) 252-9262 / Fax: (925) 252-9269 http://www.mccampbell.com / E-mail: [email protected] "When Quality Counts" Client: Environmental Science Associates
Project: D181242.01; Ukiah Riverside Park
Date Analyzed: 03/24/2022 - 03/28/2022
Date Prepared: 03/22/2022
WorkOrder: 2203E13
BatchID: 241831
Analytical Method: SW8260B
Unit: mg/kg
Sample ID: MB/LCS/LCSD-241831
Instrument: GC16, GC18
Matrix: Soil
Extraction Method: SW5030B
QC Summary Report for SW8260B
Analyte MB
Result

MDL RL SPK
Val
MB SS
%REC
MB SS
Limits
cis-1,3-Dichloropropene ND 0.00098 0.0050 - - -
trans-1,3-Dichloropropene ND 0.00097 0.0050 - - -
Diisopropyl ether (DIPE) ND 0.0018 0.0050 - - -
Ethylbenzene ND 0.0011 0.0050 - - -
Ethyl tert-butyl ether (ETBE) ND 0.0014 0.0050 - - -
Freon 113 ND 0.0011 0.0050 - - -
Hexachlorobutadiene ND 0.0012 0.0050 - - -
Hexachloroethane ND 0.00064 0.0050 - - -
2-Hexanone ND 0.0027 0.0050 - - -
Isopropylbenzene ND 0.0018 0.0050 - - -
4-Isopropyl toluene ND 0.0019 0.0050 - - -
Methyl-t-butyl ether (MTBE) ND 0.0015 0.0050 - - -
Methylene chloride ND 0.012 0.020 - - -
4-Methyl-2-pentanone (MIBK) ND 0.0017 0.0050 - - -
Naphthalene ND 0.0030 0.0050 - - -
n-Propyl benzene ND 0.0019 0.0050 - - -
Styrene ND 0.0014 0.0050 - - -
1,1,1,2-Tetrachloroethane ND 0.0013 0.0050 - - -
1,1,2,2-Tetrachloroethane ND 0.00044 0.0050 - - -
Tetrachloroethene ND 0.00029 0.0050 - - -
Toluene ND 0.0016 0.0050 - - -
1,2,3-Trichlorobenzene ND 0.0021 0.0050 - - -
1,2,4-Trichlorobenzene ND 0.0016 0.0050 - - -
1,1,1-Trichloroethane ND 0.0016 0.0050 - - -
1,1,2-Trichloroethane ND 0.0012 0.0050 - - -
Trichloroethene ND 0.0014 0.0050 - - -
Trichlorofluoromethane ND 0.0013 0.0050 - - -
1,2,3-Trichloropropane ND 0.00017 0.00025 - - -
1,2,4-Trimethylbenzene ND 0.0016 0.0050 - - -
1,3,5-Trimethylbenzene ND 0.0017 0.0050 - - -
Vinyl Chloride ND 0.00012 0.00025 - - -
m,p-Xylene ND 0.0026 0.0050 - - -
o-Xylene ND 0.0014 0.0050 - - -
CA ELAP 1644 • NELAP 4033ORELAP
(Cont.)

Quality Control Report
McCampbell Analytical, Inc. 1534 Willow Pass Road, Pittsburg, CA 94565-1701 Toll Free Telephone: (877) 252-9262 / Fax: (925) 252-9269 http://www.mccampbell.com / E-mail: [email protected] "When Quality Counts" Client: Environmental Science Associates
Project: D181242.01; Ukiah Riverside Park
Date Analyzed: 03/24/2022 - 03/28/2022
Date Prepared: 03/22/2022
WorkOrder: 2203E13
BatchID: 241831
Analytical Method: SW8260B
Unit: mg/kg
Sample ID: MB/LCS/LCSD-241831
Instrument: GC16, GC18
Matrix: Soil
Extraction Method: SW5030B
QC Summary Report for SW8260B
Analyte MB
Result

MDL RL SPK
Val
MB SS
%REC
MB SS
Limits
Surrogate Recovery
Dibromofluoromethane 0.14 0.125 109 70-140
Toluene-d8 0.15 0.125 118 70-140
4-BFB 0.013 0.0125 104 70-140
Benzene-d6 0.12 0.1 116 70-140
Ethylbenzene-d10 0.11 0.1 112 70-140
1,2-DCB-d4 0.093 0.1 93 70-140
CA ELAP 1644 • NELAP 4033ORELAP
(Cont.)

Quality Control Report
McCampbell Analytical, Inc. 1534 Willow Pass Road, Pittsburg, CA 94565-1701 Toll Free Telephone: (877) 252-9262 / Fax: (925) 252-9269 http://www.mccampbell.com / E-mail: [email protected] "When Quality Counts" Client: Environmental Science Associates
Project: D181242.01; Ukiah Riverside Park
Date Analyzed: 03/24/2022 - 03/28/2022
Date Prepared: 03/22/2022
WorkOrder: 2203E13
BatchID: 241831
Analytical Method: SW8260B
Unit: mg/kg
Sample ID: MB/LCS/LCSD-241831
Instrument: GC16, GC18
Matrix: Soil
Extraction Method: SW5030B
QC Summary Report for SW8260B
Analyte LCS
Result
LCSD
Result
SPK
Val
LCS
%REC
LCSD
%REC

LCS/LCSD
Limits

RPD RPD
Limit
Acetone 0.51 0.51 0.40 127 126 60-140 0.0937 20
tert-Amyl methyl ether (TAME) 0.016 0.016 0.020 78 80 50-140 1.70 20 Benzene 0.017 0.018 0.020 85 89 60-140 4.44 20
Bromobenzene 0.021 0.020 0.020 105 100 60-140 4.99 20
Bromochloromethane 0.018 0.018 0.020 88 90 60-140 1.83 20 Bromodichloromethane 0.017 0.017 0.020 84 87 60-140 2.80 20 Bromoform 0.014 0.013 0.020 68 66 40-140 3.56 20
Bromomethane 0.017 0.017 0.020 83 86 30-140 3.35 20
2-Butanone (MEK) 0.050 0.049 0.080 62 61 50-140 1.36 20 t-Butyl alcohol (TBA) 0.073 0.074 0.080 91 93 50-140 2.09 20 n-Butyl benzene 0.026 0.026 0.020 129 130 60-150 0.548 20 sec-Butyl benzene 0.024 0.024 0.020 118 119 60-150 1.13 20 tert-Butyl benzene 0.022 0.023 0.020 112 117 60-140 4.90 20 Carbon Disulfide 0.019 0.018 0.020 93 92 50-140 0.335 20 Carbon Tetrachloride 0.017 0.018 0.020 86 90 60-140 3.59 20 Chlorobenzene 0.019 0.018 0.020 95 92 60-140 3.21 20
Chloroethane 0.016 0.017 0.020 78 83 50-140 5.38 20
Chloroform 0.018 0.019 0.020 89 93 60-140 4.38 20
Chloromethane 0.011 0.011 0.020 57 56 20-140 0.987 20
2-Chlorotoluene 0.023 0.022 0.020 117 108 60-140 7.83 20 4-Chlorotoluene 0.021 0.021 0.020 106 104 60-140 1.22 20 Dibromochloromethane 0.016 0.015 0.020 80 77 50-140 4.61 20 1,2-Dibromo-3-chloropropane 0.0076 0.0069 0.0080 94 87 30-140 8.47 20 1,2-Dibromoethane (EDB) 0.019 0.018 0.020 95 91 40-140 4.07 20 Dibromomethane 0.018 0.018 0.020 88 88 60-140 0.795 20
1,2-Dichlorobenzene 0.017 0.017 0.020 85 85 60-140 0.676 20 1,3-Dichlorobenzene 0.021 0.021 0.020 103 103 60-140 0.160 20 1,4-Dichlorobenzene 0.019 0.020 0.020 94 99 60-140 5.05 20 Dichlorodifluoromethane 0.0099 0.0095 0.020 49 47 10-140 4.04 20 1,1-Dichloroethane 0.018 0.019 0.020 88 94 60-140 6.10 20 1,2-Dichloroethane (1,2-DCA) 0.017 0.018 0.020 86 89 60-140 2.95 20 1,1-Dichloroethene 0.015 0.016 0.020 77 80 60-140 4.57 20 cis-1,2-Dichloroethene 0.016 0.017 0.020 82 86 60-140 4.72 20 trans-1,2-Dichloroethene 0.016 0.017 0.020 79 85 60-140 7.58 20 1,2-Dichloropropane 0.017 0.018 0.020 85 89 60-140 3.98 20 1,3-Dichloropropane 0.018 0.018 0.020 91 88 60-140 3.86 20 2,2-Dichloropropane 0.018 0.019 0.020 89 93 60-140 4.75 20 1,1-Dichloropropene 0.018 0.019 0.020 90 93 60-140 3.29 20 CA ELAP 1644 • NELAP 4033ORELAP
(Cont.)

Quality Control Report
McCampbell Analytical, Inc. 1534 Willow Pass Road, Pittsburg, CA 94565-1701 Toll Free Telephone: (877) 252-9262 / Fax: (925) 252-9269 http://www.mccampbell.com / E-mail: [email protected] "When Quality Counts" Client: Environmental Science Associates
Project: D181242.01; Ukiah Riverside Park
Date Analyzed: 03/24/2022 - 03/28/2022
Date Prepared: 03/22/2022
WorkOrder: 2203E13
BatchID: 241831
Analytical Method: SW8260B
Unit: mg/kg
Sample ID: MB/LCS/LCSD-241831
Instrument: GC16, GC18
Matrix: Soil
Extraction Method: SW5030B
QC Summary Report for SW8260B
Analyte LCS
Result
LCSD
Result
SPK
Val
LCS
%REC
LCSD
%REC

LCS/LCSD
Limits

RPD RPD
Limit
cis-1,3-Dichloropropene 0.019 0.018 0.020 93 90 60-140 3.31 20 trans-1,3-Dichloropropene 0.018 0.017 0.020 88 83 60-140 5.23 20 Diisopropyl ether (DIPE) 0.017 0.017 0.020 83 87 60-140 5.43 20 Ethylbenzene 0.019 0.018 0.020 93 92 60-140 1.09 20
Ethyl tert-butyl ether (ETBE) 0.016 0.017 0.020 81 86 60-140 4.97 20 Freon 113 0.016 0.017 0.020 78 84 50-140 7.00 20
Hexachlorobutadiene 0.026 0.028 0.020 132 140 60-140 6.09 20 Hexachloroethane 0.021 0.021 0.020 103 104 60-140 0.979 20 2-Hexanone 0.018 0.017 0.020 92 83 40-140 9.70 20
Isopropylbenzene 0.024 0.024 0.020 119 118 60-140 0.977 20 4-Isopropyl toluene 0.023 0.024 0.020 116 118 60-150 1.65 20 Methyl-t-butyl ether (MTBE) 0.016 0.016 0.020 79 81 50-140 3.35 20 Methylene chloride 0.019 0.020 0.020 97 102 60-140 4.34 20 4-Methyl-2-pentanone (MIBK) 0.018 0.017 0.020 90 83 50-140 8.01 20 Naphthalene 0.012 0.011 0.020 59 54 30-140 9.34 20
n-Propyl benzene 0.025 0.024 0.020 125 119 60-140 4.94 20 Styrene 0.015 0.016 0.020 77 80 60-140 3.46 20
1,1,1,2-Tetrachloroethane 0.018 0.017 0.020 90 87 60-140 3.87 20 1,1,2,2-Tetrachloroethane 0.018 0.017 0.020 90 85 40-140 5.66 20 Tetrachloroethene 0.020 0.020 0.020 101 98 60-140 3.21 20 Toluene 0.018 0.017 0.020 89 87 60-140 2.01 20
1,2,3-Trichlorobenzene 0.014 0.016 0.020 70 78 40-140 9.89 20 1,2,4-Trichlorobenzene 0.018 0.017 0.020 92 85 50-140 7.41 20 1,1,1-Trichloroethane 0.017 0.018 0.020 87 92 60-140 5.59 20 1,1,2-Trichloroethane 0.018 0.017 0.020 88 85 60-140 3.33 20 Trichloroethene 0.019 0.019 0.020 93 96 60-140 3.17 20
Trichlorofluoromethane 0.016 0.017 0.020 82 85 50-140 3.63 20 1,2,3-Trichloropropane 0.021 0.020 0.020 103 99 60-130 3.70 20 1,2,4-Trimethylbenzene 0.021 0.021 0.020 107 106 30-140 0.803 20 1,3,5-Trimethylbenzene 0.022 0.022 0.020 112 112 60-140 0.687 20 Vinyl Chloride 0.013 0.014 0.020 66 70 30-140 4.83 20
m,p-Xylene 0.036 0.036 0.040 90 91 60-140 1.00 20
o-Xylene 0.018 0.018 0.020 88 88 60-140 0.490 20
CA ELAP 1644 • NELAP 4033ORELAP
(Cont.)

Quality Control Report
McCampbell Analytical, Inc. 1534 Willow Pass Road, Pittsburg, CA 94565-1701 Toll Free Telephone: (877) 252-9262 / Fax: (925) 252-9269 http://www.mccampbell.com / E-mail: [email protected] "When Quality Counts" Client: Environmental Science Associates
Project: D181242.01; Ukiah Riverside Park
Date Analyzed: 03/24/2022 - 03/28/2022
Date Prepared: 03/22/2022
WorkOrder: 2203E13
BatchID: 241831
Analytical Method: SW8260B
Unit: mg/kg
Sample ID: MB/LCS/LCSD-241831
Instrument: GC16, GC18
Matrix: Soil
Extraction Method: SW5030B
QC Summary Report for SW8260B
Analyte LCS
Result
LCSD
Result
SPK
Val
LCS
%REC
LCSD
%REC

LCS/LCSD
Limits

RPD RPD
Limit
Surrogate Recovery
Dibromofluoromethane 0.13 0.14 0.12 107 111 70-140 3.38 20 Toluene-d8 0.15 0.15 0.12 119 117 70-140 2.13 20
4-BFB 0.013 0.013 0.012 107 107 70-140 0.597 20
Benzene-d6 0.11 0.11 0.10 106 111 70-140 4.91 20
Ethylbenzene-d10 0.11 0.11 0.10 107 107 70-140 0.113 20 1,2-DCB-d4 0.092 0.092 0.10 92 92 70-140 0.693 20
CA ELAP 1644 • NELAP 4033ORELAP
(Cont.)

Quality Control Report
McCampbell Analytical, Inc. 1534 Willow Pass Road, Pittsburg, CA 94565-1701 Toll Free Telephone: (877) 252-9262 / Fax: (925) 252-9269 http://www.mccampbell.com / E-mail: [email protected] "When Quality Counts" Client: Environmental Science Associates
Project: D181242.01; Ukiah Riverside Park
Date Analyzed: 03/24/2022
Date Prepared: 03/23/2022
WorkOrder: 2203E13
BatchID: 241887
Analytical Method: SW8260B
Unit: mg/kg
Sample ID: MB/LCS/LCSD-241887
Instrument: GC16
Matrix: Soil
Extraction Method: SW5030B
QC Summary Report for SW8260B
Analyte MB
Result

MDL RL SPK
Val
MB SS
%REC
MB SS
Limits
Acetone ND 0.12 0.20 - - -
tert-Amyl methyl ether (TAME) ND 0.0012 0.0050 - - -
Benzene ND 0.00095 0.0050 - - -
Bromobenzene ND 0.0012 0.0050 - - -
Bromochloromethane ND 0.0011 0.0050 - - -
Bromodichloromethane ND 0.00023 0.0050 - - -
Bromoform ND 0.0038 0.0050 - - -
Bromomethane ND 0.0018 0.0050 - - -
2-Butanone (MEK) ND 0.040 0.10 - - -
t-Butyl alcohol (TBA) ND 0.024 0.050 - - -
n-Butyl benzene ND 0.0016 0.0050 - - -
sec-Butyl benzene ND 0.0018 0.0050 - - -
tert-Butyl benzene ND 0.0021 0.0050 - - -
Carbon Disulfide ND 0.0011 0.0050 - - -
Carbon Tetrachloride ND 0.00017 0.0050 - - -
Chlorobenzene ND 0.0012 0.0050 - - -
Chloroethane ND 0.0017 0.0050 - - -
Chloroform ND 0.00032 0.0050 - - -
Chloromethane ND 0.0017 0.0050 - - -
2-Chlorotoluene ND 0.0016 0.0050 - - -
4-Chlorotoluene ND 0.0013 0.0050 - - -
Dibromochloromethane ND 0.00040 0.0050 - - -
1,2-Dibromo-3-chloropropane ND 0.00048 0.00050 - - -
1,2-Dibromoethane (EDB) ND 0.00013 0.00025 - - -
Dibromomethane ND 0.0012 0.0050 - - -
1,2-Dichlorobenzene ND 0.0017 0.0050 - - -
1,3-Dichlorobenzene ND 0.0015 0.0050 - - -
1,4-Dichlorobenzene ND 0.0015 0.0050 - - -
Dichlorodifluoromethane ND 0.00063 0.0050 - - -
1,1-Dichloroethane ND 0.0015 0.0050 - - -
1,2-Dichloroethane (1,2-DCA) ND 0.000070 0.00010 - - -
1,1-Dichloroethene ND 0.00011 0.0050 - - -
cis-1,2-Dichloroethene ND 0.0012 0.0050 - - -
trans-1,2-Dichloroethene ND 0.0012 0.0050 - - -
1,2-Dichloropropane ND 0.0013 0.0050 - - -
1,3-Dichloropropane ND 0.00088 0.0050 - - -
2,2-Dichloropropane ND 0.0019 0.0050 - - -
1,1-Dichloropropene ND 0.0018 0.0050 - - -
CA ELAP 1644 • NELAP 4033ORELAP
(Cont.)

Quality Control Report
McCampbell Analytical, Inc. 1534 Willow Pass Road, Pittsburg, CA 94565-1701 Toll Free Telephone: (877) 252-9262 / Fax: (925) 252-9269 http://www.mccampbell.com / E-mail: [email protected] "When Quality Counts" Client: Environmental Science Associates
Project: D181242.01; Ukiah Riverside Park
Date Analyzed: 03/24/2022
Date Prepared: 03/23/2022
WorkOrder: 2203E13
BatchID: 241887
Analytical Method: SW8260B
Unit: mg/kg
Sample ID: MB/LCS/LCSD-241887
Instrument: GC16
Matrix: Soil
Extraction Method: SW5030B
QC Summary Report for SW8260B
Analyte MB
Result

MDL RL SPK
Val
MB SS
%REC
MB SS
Limits
cis-1,3-Dichloropropene ND 0.00098 0.0050 - - -
trans-1,3-Dichloropropene ND 0.00097 0.0050 - - -
Diisopropyl ether (DIPE) ND 0.0018 0.0050 - - -
Ethylbenzene ND 0.0011 0.0050 - - -
Ethyl tert-butyl ether (ETBE) ND 0.0014 0.0050 - - -
Freon 113 ND 0.0011 0.0050 - - -
Hexachlorobutadiene ND 0.0012 0.0050 - - -
Hexachloroethane ND 0.00064 0.0050 - - -
2-Hexanone ND 0.0027 0.0050 - - -
Isopropylbenzene ND 0.0018 0.0050 - - -
4-Isopropyl toluene ND 0.0019 0.0050 - - -
Methyl-t-butyl ether (MTBE) ND 0.0015 0.0050 - - -
Methylene chloride ND 0.012 0.020 - - -
4-Methyl-2-pentanone (MIBK) ND 0.0017 0.0050 - - -
Naphthalene ND 0.0030 0.0050 - - -
n-Propyl benzene ND 0.0019 0.0050 - - -
Styrene ND 0.0014 0.0050 - - -
1,1,1,2-Tetrachloroethane ND 0.0013 0.0050 - - -
1,1,2,2-Tetrachloroethane ND 0.00044 0.0050 - - -
Tetrachloroethene ND 0.00029 0.0050 - - -
Toluene ND 0.0016 0.0050 - - -
1,2,3-Trichlorobenzene ND 0.0021 0.0050 - - -
1,2,4-Trichlorobenzene ND 0.0016 0.0050 - - -
1,1,1-Trichloroethane ND 0.0016 0.0050 - - -
1,1,2-Trichloroethane ND 0.0012 0.0050 - - -
Trichloroethene ND 0.0014 0.0050 - - -
Trichlorofluoromethane ND 0.0013 0.0050 - - -
1,2,3-Trichloropropane ND 0.00017 0.00025 - - -
1,2,4-Trimethylbenzene ND 0.0016 0.0050 - - -
1,3,5-Trimethylbenzene ND 0.0017 0.0050 - - -
Vinyl Chloride ND 0.00012 0.00025 - - -
m,p-Xylene ND 0.0026 0.0050 - - -
o-Xylene ND 0.0014 0.0050 - - -
CA ELAP 1644 • NELAP 4033ORELAP
(Cont.)

Quality Control Report
McCampbell Analytical, Inc. 1534 Willow Pass Road, Pittsburg, CA 94565-1701 Toll Free Telephone: (877) 252-9262 / Fax: (925) 252-9269 http://www.mccampbell.com / E-mail: [email protected] "When Quality Counts" Client: Environmental Science Associates
Project: D181242.01; Ukiah Riverside Park
Date Analyzed: 03/24/2022
Date Prepared: 03/23/2022
WorkOrder: 2203E13
BatchID: 241887
Analytical Method: SW8260B
Unit: mg/kg
Sample ID: MB/LCS/LCSD-241887
Instrument: GC16
Matrix: Soil
Extraction Method: SW5030B
QC Summary Report for SW8260B
Analyte MB
Result

MDL RL SPK
Val
MB SS
%REC
MB SS
Limits
Surrogate Recovery
Dibromofluoromethane 0.13 0.125 104 70-140
Toluene-d8 0.15 0.125 123 70-140
4-BFB 0.014 0.0125 108 70-140
Benzene-d6 0.11 0.1 115 70-140
Ethylbenzene-d10 0.12 0.1 118 70-140
1,2-DCB-d4 0.091 0.1 91 70-140
CA ELAP 1644 • NELAP 4033ORELAP
(Cont.)

Quality Control Report
McCampbell Analytical, Inc. 1534 Willow Pass Road, Pittsburg, CA 94565-1701 Toll Free Telephone: (877) 252-9262 / Fax: (925) 252-9269 http://www.mccampbell.com / E-mail: [email protected] "When Quality Counts" Client: Environmental Science Associates
Project: D181242.01; Ukiah Riverside Park
Date Analyzed: 03/24/2022
Date Prepared: 03/23/2022
WorkOrder: 2203E13
BatchID: 241887
Analytical Method: SW8260B
Unit: mg/kg
Sample ID: MB/LCS/LCSD-241887
Instrument: GC16
Matrix: Soil
Extraction Method: SW5030B
QC Summary Report for SW8260B
Analyte LCS
Result
LCSD
Result
SPK
Val
LCS
%REC
LCSD
%REC

LCS/LCSD
Limits

RPD RPD
Limit
Acetone 0.48 0.49 0.40 119 123 60-140 3.59 20
tert-Amyl methyl ether (TAME) 0.015 0.016 0.020 75 79 50-140 4.55 20 Benzene 0.017 0.018 0.020 84 89 60-140 5.89 20
Bromobenzene 0.022 0.022 0.020 110 110 60-140 0.0130 20 Bromochloromethane 0.017 0.018 0.020 87 91 60-140 4.51 20 Bromodichloromethane 0.017 0.018 0.020 85 89 60-140 4.78 20 Bromoform 0.013 0.013 0.020 64 66 40-140 3.97 20
Bromomethane 0.014 0.015 0.020 72 77 30-140 6.58 20
2-Butanone (MEK) 0.045 0.046 0.080 56 57 50-140 2.48 20 t-Butyl alcohol (TBA) 0.071 0.075 0.080 89 94 50-140 4.86 20 n-Butyl benzene 0.028 0.031 0.020 138 153,F2 60-150 10.4 20 sec-Butyl benzene 0.026 0.029 0.020 130 143 60-150 9.81 20 tert-Butyl benzene 0.025 0.027 0.020 126 134 60-140 6.11 20 Carbon Disulfide 0.069 0.022 0.020 343,F2 109 50-140 103,F2 20 Carbon Tetrachloride 0.017 0.018 0.020 85 90 60-140 6.57 20 Chlorobenzene 0.018 0.019 0.020 88 97 60-140 9.90 20
Chloroethane 0.014 0.015 0.020 69 74 50-140 6.85 20
Chloroform 0.018 0.019 0.020 89 95 60-140 5.58 20
Chloromethane 0.0086 0.0095 0.020 43 48 20-140 9.66 20
2-Chlorotoluene 0.023 0.025 0.020 116 125 60-140 7.93 20 4-Chlorotoluene 0.023 0.025 0.020 114 123 60-140 7.11 20 Dibromochloromethane 0.015 0.016 0.020 75 79 50-140 4.84 20 1,2-Dibromo-3-chloropropane 0.0067 0.0076 0.0080 84 95 30-140 12.0 20 1,2-Dibromoethane (EDB) 0.018 0.019 0.020 88 93 40-140 5.71 20 Dibromomethane 0.017 0.017 0.020 84 85 60-140 0.430 20
1,2-Dichlorobenzene 0.018 0.019 0.020 89 95 60-140 7.40 20 1,3-Dichlorobenzene 0.022 0.023 0.020 108 115 60-140 6.22 20 1,4-Dichlorobenzene 0.020 0.022 0.020 102 108 60-140 5.31 20 Dichlorodifluoromethane 0.0037 0.0044 0.020 19 22 10-140 16.5 20 1,1-Dichloroethane 0.018 0.019 0.020 89 94 60-140 5.41 20 1,2-Dichloroethane (1,2-DCA) 0.017 0.018 0.020 83 88 60-140 5.60 20 1,1-Dichloroethene 0.014 0.015 0.020 71 77 60-140 8.45 20 cis-1,2-Dichloroethene 0.016 0.017 0.020 82 87 60-140 5.63 20 trans-1,2-Dichloroethene 0.015 0.017 0.020 77 83 60-140 7.43 20 1,2-Dichloropropane 0.017 0.018 0.020 86 91 60-140 5.71 20 1,3-Dichloropropane 0.018 0.018 0.020 88 91 60-140 2.39 20 2,2-Dichloropropane 0.018 0.018 0.020 88 92 60-140 4.75 20 1,1-Dichloropropene 0.018 0.019 0.020 89 94 60-140 4.61 20 CA ELAP 1644 • NELAP 4033ORELAP
(Cont.)

Quality Control Report
McCampbell Analytical, Inc. 1534 Willow Pass Road, Pittsburg, CA 94565-1701 Toll Free Telephone: (877) 252-9262 / Fax: (925) 252-9269 http://www.mccampbell.com / E-mail: [email protected] "When Quality Counts" Client: Environmental Science Associates
Project: D181242.01; Ukiah Riverside Park
Date Analyzed: 03/24/2022
Date Prepared: 03/23/2022
WorkOrder: 2203E13
BatchID: 241887
Analytical Method: SW8260B
Unit: mg/kg
Sample ID: MB/LCS/LCSD-241887
Instrument: GC16
Matrix: Soil
Extraction Method: SW5030B
QC Summary Report for SW8260B
Analyte LCS
Result
LCSD
Result
SPK
Val
LCS
%REC
LCSD
%REC

LCS/LCSD
Limits

RPD RPD
Limit
cis-1,3-Dichloropropene 0.017 0.018 0.020 87 92 60-140 6.59 20 trans-1,3-Dichloropropene 0.016 0.017 0.020 81 87 60-140 6.60 20 Diisopropyl ether (DIPE) 0.017 0.018 0.020 83 88 60-140 6.18 20 Ethylbenzene 0.018 0.020 0.020 91 99 60-140 8.78 20
Ethyl tert-butyl ether (ETBE) 0.016 0.017 0.020 79 85 60-140 6.88 20 Freon 113 0.014 0.016 0.020 72 79 50-140 9.26 20
Hexachlorobutadiene 0.030 0.033 0.020 149,F2 166,F2 60-140 10.8 20 Hexachloroethane 0.022 0.024 0.020 110 121 60-140 9.71 20 2-Hexanone 0.018 0.016 0.020 88 80 40-140 9.52 20
Isopropylbenzene 0.025 0.027 0.020 124 137 60-140 10.3 20 4-Isopropyl toluene 0.025 0.028 0.020 124 138 60-150 10.9 20 Methyl-t-butyl ether (MTBE) 0.015 0.015 0.020 74 77 50-140 5.01 20 Methylene chloride 0.019 0.020 0.020 94 100 60-140 5.17 20 4-Methyl-2-pentanone (MIBK) 0.013 0.017 0.020 66 87 50-140 27.4,F2 20 Naphthalene 0.011 0.011 0.020 53 57 30-140 5.89 20
n-Propyl benzene 0.025 0.029 0.020 126 147,F2 60-140 15.5 20 Styrene 0.016 0.017 0.020 81 83 60-140 2.37 20
1,1,1,2-Tetrachloroethane 0.018 0.019 0.020 89 96 60-140 7.11 20 1,1,2,2-Tetrachloroethane 0.018 0.020 0.020 91 98 40-140 7.36 20 Tetrachloroethene 0.019 0.021 0.020 96 104 60-140 7.90 20 Toluene 0.017 0.018 0.020 84 91 60-140 7.47 20
1,2,3-Trichlorobenzene 0.015 0.016 0.020 74 81 40-140 9.80 20 1,2,4-Trichlorobenzene 0.019 0.019 0.020 97 95 50-140 2.32 20 1,1,1-Trichloroethane 0.017 0.018 0.020 86 92 60-140 7.27 20 1,1,2-Trichloroethane 0.017 0.018 0.020 84 88 60-140 4.51 20 Trichloroethene 0.019 0.020 0.020 94 101 60-140 6.92 20 Trichlorofluoromethane 0.014 0.015 0.020 71 77 50-140 8.19 20 1,2,3-Trichloropropane 0.021 0.022 0.020 104 112 60-130 7.23 20 1,2,4-Trimethylbenzene 0.022 0.025 0.020 111 125 30-140 11.8 20 1,3,5-Trimethylbenzene 0.024 0.025 0.020 118 127 60-140 6.71 20 Vinyl Chloride 0.011 0.012 0.020 54 58 30-140 7.88 20
m,p-Xylene 0.036 0.039 0.040 90 97 60-140 7.95 20
o-Xylene 0.018 0.019 0.020 89 95 60-140 5.80 20
CA ELAP 1644 • NELAP 4033ORELAP
(Cont.)

Quality Control Report
McCampbell Analytical, Inc. 1534 Willow Pass Road, Pittsburg, CA 94565-1701 Toll Free Telephone: (877) 252-9262 / Fax: (925) 252-9269 http://www.mccampbell.com / E-mail: [email protected] "When Quality Counts" Client: Environmental Science Associates
Project: D181242.01; Ukiah Riverside Park
Date Analyzed: 03/24/2022
Date Prepared: 03/23/2022
WorkOrder: 2203E13
BatchID: 241887
Analytical Method: SW8260B
Unit: mg/kg
Sample ID: MB/LCS/LCSD-241887
Instrument: GC16
Matrix: Soil
Extraction Method: SW5030B
QC Summary Report for SW8260B
Analyte LCS
Result
LCSD
Result
SPK
Val
LCS
%REC
LCSD
%REC

LCS/LCSD
Limits

RPD RPD
Limit
Surrogate Recovery
Dibromofluoromethane 0.14 0.14 0.12 109 109 70-140 0.265 20 Toluene-d8 0.15 0.15 0.12 116 118 70-140 1.43 20
4-BFB 0.013 0.014 0.012 104 109 70-140 5.56 20
Benzene-d6 0.11 0.12 0.10 111 118 70-140 6.18 20
Ethylbenzene-d10 0.11 0.12 0.10 107 115 70-140 7.34 20
1,2-DCB-d4 0.089 0.095 0.10 89 95 70-140 6.63 20
CA ELAP 1644 • NELAP 4033ORELAP

Quality Control Report
McCampbell Analytical, Inc. 1534 Willow Pass Road, Pittsburg, CA 94565-1701 Toll Free Telephone: (877) 252-9262 / Fax: (925) 252-9269 http://www.mccampbell.com / E-mail: [email protected] "When Quality Counts" Client: Environmental Science Associates
Project: D181242.01; Ukiah Riverside Park
Date Analyzed: 03/25/2022
Date Prepared: 03/25/2022
WorkOrder: 2203E13
BatchID: 242025
Analytical Method: SW8270C
Unit: mg/Kg
Sample ID: MB/LCS/LCSD-242025
Instrument: GC17, GC53
Matrix: Soil
Extraction Method: SW3550B
QC Summary Report for SW8270C
Analyte MB
Result

MDL RL SPK
Val
MB SS
%REC
MB SS
Limits
Acenaphthene ND 0.00035 0.0013 - - -
Acenaphthylene ND 0.00028 0.0013 - - -
Acetochlor ND 0.044 0.25 - - -
Anthracene ND 0.00057 0.0013 - - -
Benzidine ND 0.36 1.2 - - -
Benzo (a) anthracene ND 0.0036 0.013 - - -
Benzo (a) pyrene ND 0.00070 0.0025 - - -
Benzo (b) fluoranthene ND 0.0013 0.0025 - - -
Benzo (g,h,i) perylene ND 0.00089 0.0025 - - -
Benzo (k) fluoranthene ND 0.0010 0.0025 - - -
Benzyl Alcohol ND 0.55 1.2 - - -
1,1-Biphenyl ND 0.0029 0.013 - - -
Bis (2-chloroethoxy) Methane ND 0.030 0.25 - - -
Bis (2-chloroethyl) Ether ND 0.00036 0.0013 - - -
Bis (2-chloroisopropyl) Ether ND 0.0012 0.0025 - - -
Bis (2-ethylhexyl) Adipate ND 0.085 0.25 - - -
Bis (2-ethylhexyl) Phthalate ND 0.0047 0.013 - - -
4-Bromophenyl Phenyl Ether ND 0.040 0.25 - - -
Butylbenzyl Phthalate ND 0.0036 0.013 - - -
4-Chloroaniline ND 0.00092 0.0013 - - -
4-Chloro-3-methylphenol ND 0.062 0.25 - - -
2-Chloronaphthalene ND 0.041 0.25 - - -
2-Chlorophenol ND 0.0024 0.013 - - -
4-Chlorophenyl Phenyl Ether ND 0.066 0.25 - - -
Chrysene ND 0.00067 0.0025 - - -
Dibenzo (a,h) anthracene ND 0.0011 0.0025 - - -
Dibenzofuran ND 0.000093 0.0013 - - -
1,2-Dichlorobenzene ND 0.053 0.25 - - -
1,3-Dichlorobenzene ND 0.042 0.25 - - -
1,4-Dichlorobenzene ND 0.049 0.25 - - -
3,3-Dichlorobenzidine ND 0.0026 0.013 - - -
2,4-Dichlorophenol ND 0.0012 0.0025 - - -
Diethyl Phthalate ND 0.0040 0.013 - - -
Dimethyl Phthalate ND 0.0019 0.0025 - - -
2,4-Dimethylphenol ND 0.044 0.25 - - -
Di-n-butyl Phthalate ND 0.0044 0.013 - - -
4,6-Dinitro-2-methylphenol ND 0.41 1.2 - - -
2,4-Dinitrophenol ND 0.11 0.25 - - -
CA ELAP 1644 • NELAP 4033ORELAP
(Cont.)

Quality Control Report
McCampbell Analytical, Inc. 1534 Willow Pass Road, Pittsburg, CA 94565-1701 Toll Free Telephone: (877) 252-9262 / Fax: (925) 252-9269 http://www.mccampbell.com / E-mail: [email protected] "When Quality Counts" Client: Environmental Science Associates
Project: D181242.01; Ukiah Riverside Park
Date Analyzed: 03/25/2022
Date Prepared: 03/25/2022
WorkOrder: 2203E13
BatchID: 242025
Analytical Method: SW8270C
Unit: mg/Kg
Sample ID: MB/LCS/LCSD-242025
Instrument: GC17, GC53
Matrix: Soil
Extraction Method: SW3550B
QC Summary Report for SW8270C
Analyte MB
Result

MDL RL SPK
Val
MB SS
%REC
MB SS
Limits
2,4-Dinitrotoluene ND 0.0036 0.013 - - -
2,6-Dinitrotoluene ND 0.062 0.12 - - -
Di-n-octyl Phthalate ND 0.20 0.50 - - -
1,2-Diphenylhydrazine ND 0.038 0.25 - - -
Fluoranthene ND 0.00079 0.0025 - - -
Fluorene ND 0.0010 0.0025 - - -
Hexachlorobenzene ND 0.0012 0.0025 - - -
Hexachlorobutadiene ND 0.00019 0.0013 - - -
Hexachlorocyclopentadiene ND 0.52 1.2 - - -
Hexachloroethane ND 0.0026 0.013 - - -
Indeno (1,2,3-cd) pyrene ND 0.0035 0.013 - - -
Isophorone ND 0.069 0.25 - - -
1-Methylnaphthalene ND 0.00033 0.0013 - - -
2-Methylnaphthalene ND 0.00048 0.0013 - - -
2-Methylphenol (o-Cresol) ND 0.060 0.25 - - -
3 & 4-Methylphenol (m,p-Cresol) ND 0.046 0.25 - - -
Naphthalene ND 0.0031 0.0062 - - -
2-Nitroaniline ND 0.31 1.2 - - -
3-Nitroaniline 0.47,J 0.24 1.2 - - -
4-Nitroaniline 0.36,J 0.28 1.2 - - -
Nitrobenzene ND 0.055 0.25 - - -
2-Nitrophenol ND 0.31 1.2 - - -
4-Nitrophenol ND 0.35 1.2 - - -
N-Nitrosodimethylamine ND 0.22 1.2 - - -
N-Nitrosodi-n-propylamine ND 0.079 0.25 - - -
N-Nitrosodiphenylamine ND 0.029 0.25 - - -
Pentachlorophenol ND 0.029 0.062 - - -
Phenanthrene ND 0.00068 0.0013 - - -
Phenol ND 0.0018 0.0050 - - -
Pyrene ND 0.00063 0.0025 - - -
Pyridine ND 0.046 0.25 - - -
2,3,4,6-Tetrachlorophenol ND 0.079 0.25 - - -
1,2,4-Trichlorobenzene ND 0.046 0.25 - - -
2,4,5-Trichlorophenol ND 0.00059 0.0025 - - -
2,4,6-Trichlorophenol ND 0.00057 0.0025 - - -
CA ELAP 1644 • NELAP 4033ORELAP
(Cont.)

Quality Control Report
McCampbell Analytical, Inc. 1534 Willow Pass Road, Pittsburg, CA 94565-1701 Toll Free Telephone: (877) 252-9262 / Fax: (925) 252-9269 http://www.mccampbell.com / E-mail: [email protected] "When Quality Counts" Client: Environmental Science Associates
Project: D181242.01; Ukiah Riverside Park
Date Analyzed: 03/25/2022
Date Prepared: 03/25/2022
WorkOrder: 2203E13
BatchID: 242025
Analytical Method: SW8270C
Unit: mg/Kg
Sample ID: MB/LCS/LCSD-242025
Instrument: GC17, GC53
Matrix: Soil
Extraction Method: SW3550B
QC Summary Report for SW8270C
Analyte MB
Result

MDL RL SPK
Val
MB SS
%REC
MB SS
Limits
Surrogate Recovery
2-Fluorophenol 1.1 1.25 89 70-130
Phenol-d5 1.0 1.25 81 70-130
Nitrobenzene-d5 1.1 1.25 86 60-130
2-Fluorobiphenyl 1.2 1.25 92 60-130
2,4,6-Tribromophenol 0.70 1.25 56 30-130
4-Terphenyl-d14 1.1 1.25 88 40-130
CA ELAP 1644 • NELAP 4033ORELAP
(Cont.)

Quality Control Report
McCampbell Analytical, Inc. 1534 Willow Pass Road, Pittsburg, CA 94565-1701 Toll Free Telephone: (877) 252-9262 / Fax: (925) 252-9269 http://www.mccampbell.com / E-mail: [email protected] "When Quality Counts" Client: Environmental Science Associates
Project: D181242.01; Ukiah Riverside Park
Date Analyzed: 03/25/2022
Date Prepared: 03/25/2022
WorkOrder: 2203E13
BatchID: 242025
Analytical Method: SW8270C
Unit: mg/Kg
Sample ID: MB/LCS/LCSD-242025
Instrument: GC17, GC53
Matrix: Soil
Extraction Method: SW3550B
QC Summary Report for SW8270C
Analyte LCS
Result
LCSD
Result
SPK
Val
LCS
%REC
LCSD
%REC

LCS/LCSD
Limits

RPD RPD
Limit
Acenaphthene 0.051 0.059 0.062 82 95 60-130 15.2 30
Acenaphthylene 0.052 0.063 0.062 83 101 60-130 19.9 30
Acetochlor 0.84 1.0 1.25 67 82 60-130 19.9 30
Anthracene 0.052 0.062 0.062 84 100 60-130 17.7 30
Benzidine 2.5 2.9 6.25 40 46 20-130 15.2 30
Benzo (a) anthracene 0.053 0.064 0.062 85 102 70-130 18.0 30 Benzo (a) pyrene 0.055 0.064 0.062 88 103 70-130 16.2 30 Benzo (b) fluoranthene 0.050 0.059 0.062 79 95 60-130 17.4 30 Benzo (g,h,i) perylene 0.061 0.072 0.062 98 116 70-130 17.0 30 Benzo (k) fluoranthene 0.050 0.058 0.062 81 93 70-130 14.6 30 Benzyl Alcohol 4.5 5.0 6.25 73 81 70-130 10.4 30
1,1-Biphenyl 0.053 0.064 0.062 85 103 60-130 19.1 30
Bis (2-chloroethoxy) Methane 1.0 1.2 1.25 83 96 70-130 14.4 30 Bis (2-chloroethyl) Ether 0.044 0.052 0.062 71 83 60-130 16.0 30 Bis (2-chloroisopropyl) Ether 0.040 0.040 0.062 65 64 60-130 1.75 30 Bis (2-ethylhexyl) Adipate 0.97 1.2 1.25 78 93 60-130 17.9 30 Bis (2-ethylhexyl) Phthalate 0.050 0.058 0.062 80 93 60-130 15.0 30 4-Bromophenyl Phenyl Ether 1.0 1.2 1.25 84 98 60-130 16.0 30 Butylbenzyl Phthalate 0.053 0.059 0.062 86 95 60-130 10.5 30 4-Chloroaniline 0.043 0.049 0.062 69 79 40-130 13.2 30
4-Chloro-3-methylphenol 0.88 0.97 1.25 71 77 70-130 9.27 30 2-Chloronaphthalene 0.89 1.1 1.25 71 87 60-130 20.0 30
2-Chlorophenol 0.054 0.064 0.062 86 102 60-130 17.0 30
4-Chlorophenyl Phenyl Ether 0.92 1.1 1.25 73 86 70-130 15.4 30 Chrysene 0.053 0.063 0.062 84 101 70-130 18.8 30
Dibenzo (a,h) anthracene 0.064 0.075 0.062 102 120 70-130 16.9 30 Dibenzofuran 0.051 0.060 0.062 81 96 60-130 16.1 30
1,2-Dichlorobenzene 0.89 1.1 1.25 71 85 60-130 17.4 30
1,3-Dichlorobenzene 0.86 1.0 1.25 68 80 60-130 15.1 30
1,4-Dichlorobenzene 0.87 1.0 1.25 70 81 60-130 14.5 30
3,3-Dichlorobenzidine 0.047 0.056 0.062 76 89 40-130 16.9 30 2,4-Dichlorophenol 0.046 0.053 0.062 74 85 60-130 15.0 30 Diethyl Phthalate 0.048 0.058 0.062 76 93 70-130 19.7 30 Dimethyl Phthalate 0.050 0.060 0.062 80 97 70-130 19.1 30 2,4-Dimethylphenol 0.97 1.0 1.25 78 82 70-130 4.87 30
Di-n-butyl Phthalate 0.048 0.057 0.062 77 91 60-130 17.0 30 4,6-Dinitro-2-methylphenol 4.2 5.1 6.25 67 81 20-130 18.3 30 2,4-Dinitrophenol 0.53 0.61 1.25 42 49 15-130 14.0 30
CA ELAP 1644 • NELAP 4033ORELAP
(Cont.)

Quality Control Report
McCampbell Analytical, Inc. 1534 Willow Pass Road, Pittsburg, CA 94565-1701 Toll Free Telephone: (877) 252-9262 / Fax: (925) 252-9269 http://www.mccampbell.com / E-mail: [email protected] "When Quality Counts" Client: Environmental Science Associates
Project: D181242.01; Ukiah Riverside Park
Date Analyzed: 03/25/2022
Date Prepared: 03/25/2022
WorkOrder: 2203E13
BatchID: 242025
Analytical Method: SW8270C
Unit: mg/Kg
Sample ID: MB/LCS/LCSD-242025
Instrument: GC17, GC53
Matrix: Soil
Extraction Method: SW3550B
QC Summary Report for SW8270C
Analyte LCS
Result
LCSD
Result
SPK
Val
LCS
%REC
LCSD
%REC

LCS/LCSD
Limits

RPD RPD
Limit
2,4-Dinitrotoluene 0.073 0.083 0.062 117 133,F5 70-130 12.4 30 2,6-Dinitrotoluene 0.072 0.085 0.062 115 136,F5 60-130 16.6 30 Di-n-octyl Phthalate 0.99 1.1 1.25 79 91 60-130 14.0 30 1,2-Diphenylhydrazine 0.75 0.88 1.25 60 71 60-130 16.9 30 Fluoranthene 0.054 0.063 0.062 87 100 70-130 14.5 30
Fluorene 0.059 0.072 0.062 94 115 60-130 20.4 30
Hexachlorobenzene 0.064 0.075 0.062 102 120 70-130 16.1 30 Hexachlorobutadiene 0.064 0.074 0.062 103 119 70-130 14.2 30 Hexachlorocyclopentadiene 4.6 5.6 6.25 74 90 60-130 19.0 30 Hexachloroethane 0.047 0.055 0.062 76 88 70-130 15.7 30 Indeno (1,2,3-cd) pyrene 0.066 0.070 0.062 105 112 70-130 6.63 30 Isophorone 1.3 1.5 1.25 100 118 60-130 16.0 30
1-Methylnaphthalene 0.055 0.064 0.062 88 102 70-130 14.8 30 2-Methylnaphthalene 0.055 0.064 0.062 89 103 70-130 14.8 30 2-Methylphenol (o-Cresol) 0.86 0.99 1.25 69 79 60-130 14.2 30 3 & 4-Methylphenol (m,p-Cresol) 0.82 0.97 1.25 65 78 60-130 17.4 30 Naphthalene 0.049 0.057 0.062 78 91 70-130 15.4 30
2-Nitroaniline 4.4 4.8 6.25 70 77 70-130 9.31 30
3-Nitroaniline 4.5 5.3 6.25 72 84 50-130 16.1 30
4-Nitroaniline 4.3 4.9 6.25 69 78 60-130 12.2 30
Nitrobenzene 1.0 1.2 1.25 82 95 60-130 14.6 30
2-Nitrophenol 5.8 6.7 6.25 92 107 70-130 15.0 30
4-Nitrophenol 4.2 4.8 6.25 67 77 60-130 14.3 30
N-Nitrosodimethylamine 3.8 4.4 6.25 61,F5 71 70-130 14.4 30 N-Nitrosodi-n-propylamine 0.84 0.81 1.25 68 65 60-130 4.06 30 N-Nitrosodiphenylamine 1.1 1.3 1.25 86 104 70-130 19.3 30 Pentachlorophenol 0.28 0.32 0.31 91 103 50-130 12.2 30
Phenanthrene 0.050 0.058 0.062 80 93 60-130 14.7 30
Phenol 0.20 0.23 0.25 79 93 60-130 16.4 30
Pyrene 0.054 0.063 0.062 86 101 70-130 15.9 30
Pyridine 0.90 0.96 1.25 72 77 60-130 6.79 30
2,3,4,6-Tetrachlorophenol 0.94 1.1 1.25 75 91 60-130 19.2 30 1,2,4-Trichlorobenzene 0.99 1.2 1.25 79 95 60-130 18.0 30 2,4,5-Trichlorophenol 0.055 0.067 0.062 88 107 60-130 19.7 30 2,4,6-Trichlorophenol 0.058 0.070 0.062 92 112 60-130 19.8 30 CA ELAP 1644 • NELAP 4033ORELAP
(Cont.)

Quality Control Report
McCampbell Analytical, Inc. 1534 Willow Pass Road, Pittsburg, CA 94565-1701 Toll Free Telephone: (877) 252-9262 / Fax: (925) 252-9269 http://www.mccampbell.com / E-mail: [email protected] "When Quality Counts" Client: Environmental Science Associates
Project: D181242.01; Ukiah Riverside Park
Date Analyzed: 03/25/2022
Date Prepared: 03/25/2022
WorkOrder: 2203E13
BatchID: 242025
Analytical Method: SW8270C
Unit: mg/Kg
Sample ID: MB/LCS/LCSD-242025
Instrument: GC17, GC53
Matrix: Soil
Extraction Method: SW3550B
QC Summary Report for SW8270C
Analyte LCS
Result
LCSD
Result
SPK
Val
LCS
%REC
LCSD
%REC

LCS/LCSD
Limits

RPD RPD
Limit
Surrogate Recovery
2-Fluorophenol 1.1 1.1 1.25 85 91 70-130 6.99 30
Phenol-d5 0.93 1.0 1.25 75 81 70-130 8.72 30
Nitrobenzene-d5 1.1 1.2 1.25 86 93 60-130 7.60 30
2-Fluorobiphenyl 1.1 1.2 1.25 87 98 60-130 12.1 30
2,4,6-Tribromophenol 0.88 1.0 1.25 71 83 30-130 16.7 30 4-Terphenyl-d14 1.2 1.3 1.25 93 102 40-130 9.90 30
CA ELAP 1644 • NELAP 4033ORELAP

Quality Control Report
McCampbell Analytical, Inc. 1534 Willow Pass Road, Pittsburg, CA 94565-1701 Toll Free Telephone: (877) 252-9262 / Fax: (925) 252-9269 http://www.mccampbell.com / E-mail: [email protected] "When Quality Counts" Client: Environmental Science Associates
Project: D181242.01; Ukiah Riverside Park
Date Analyzed: 03/24/2022
Date Prepared: 03/24/2022
WorkOrder: 2203E13
BatchID: 241869
Analytical Method: SW6020
Unit: mg/kg
Sample ID: MB/LCS/LCSD-241869
Instrument: ICP-MS4
Matrix: Soil
Extraction Method: SW3050B
QC Summary Report for Metals
Analyte MB
Result

MDL RL SPK
Val
MB SS
%REC
MB SS
Limits
Antimony ND 0.16 0.50 - - -
Arsenic ND 0.14 0.50 - - -
Barium ND 0.68 5.0 - - -
Beryllium ND 0.083 0.50 - - -
Cadmium ND 0.094 0.50 - - -
Chromium ND 0.13 0.50 - - -
Cobalt ND 0.069 0.50 - - -
Copper ND 0.23 0.50 - - -
Lead ND 0.069 0.50 - - -
Mercury ND 0.038 0.050 - - -
Molybdenum ND 0.14 0.50 - - -
Nickel ND 0.081 0.50 - - -
Selenium ND 0.32 0.50 - - -
Silver ND 0.11 0.50 - - -
Thallium ND 0.072 0.50 - - -
Vanadium ND 0.15 0.50 - - -
Zinc ND 3.2 5.0 - - -
Surrogate Recovery
Terbium 510 500 101 70-130
CA ELAP 1644 • NELAP 4033ORELAP
(Cont.)

Quality Control Report
McCampbell Analytical, Inc. 1534 Willow Pass Road, Pittsburg, CA 94565-1701 Toll Free Telephone: (877) 252-9262 / Fax: (925) 252-9269 http://www.mccampbell.com / E-mail: [email protected] "When Quality Counts" Client: Environmental Science Associates
Project: D181242.01; Ukiah Riverside Park
Date Analyzed: 03/24/2022
Date Prepared: 03/24/2022
WorkOrder: 2203E13
BatchID: 241869
Analytical Method: SW6020
Unit: mg/kg
Sample ID: MB/LCS/LCSD-241869
Instrument: ICP-MS4
Matrix: Soil
Extraction Method: SW3050B
QC Summary Report for Metals
Analyte LCS
Result
LCSD
Result
SPK
Val
LCS
%REC
LCSD
%REC

LCS/LCSD
Limits

RPD RPD
Limit
Antimony 48 46 50 96 93 75-125 3.84 20
Arsenic 51 49 50 102 99 75-125 2.82 20
Barium 490 470 500 97 94 75-125 3.36 20
Beryllium 45 44 50 89 89 75-125 0.967 20
Cadmium 48 46 50 95 93 75-125 2.36 20
Chromium 49 47 50 97 95 75-125 2.48 20
Cobalt 48 47 50 97 95 75-125 1.87 20
Copper 50 49 50 100 97 75-125 2.82 20
Lead 47 45 50 94 91 75-125 3.72 20
Mercury 1.2 1.2 1.25 97 92 75-125 4.73 20
Molybdenum 49 48 50 98 96 75-125 2.72 20
Nickel 51 49 50 102 98 75-125 3.73 20
Selenium 51 48 50 102 97 75-125 4.82 20
Silver 47 47 50 94 94 75-125 0.221 20
Thallium 49 47 50 98 95 75-125 3.27 20
Vanadium 49 48 50 98 96 75-125 2.35 20
Zinc 500 480 500 100 97 75-125 3.27 20
Surrogate Recovery
Terbium 540 510 500 107 102 70-130 4.47 20
CA ELAP 1644 • NELAP 4033ORELAP

Quality Control Report
McCampbell Analytical, Inc. 1534 Willow Pass Road, Pittsburg, CA 94565-1701 Toll Free Telephone: (877) 252-9262 / Fax: (925) 252-9269 http://www.mccampbell.com / E-mail: [email protected] "When Quality Counts" Client: Environmental Science Associates
Project: D181242.01; Ukiah Riverside Park
Date Analyzed: 03/23/2022 - 03/25/2022
Date Prepared: 03/23/2022
WorkOrder: 2203E13
BatchID: 241885
Analytical Method: SW8021B/8015Bm
Unit: mg/Kg
Sample ID: MB/LCS/LCSD-241885
Instrument: GC19, GC3, GC7
Matrix: Soil
Extraction Method: SW5035
QC Summary Report for SW8021B/8015Bm
Analyte MB
Result

MDL RL SPK
Val
MB SS
%REC
MB SS
Limits
TPH(g) (C6-C12) ND 0.55 1.0 - - -
MTBE 0.0029,J 0.0026 0.050 - - -
Benzene ND 0.0018 0.0050 - - -
Toluene ND 0.0022 0.0050 - - -
Ethylbenzene ND 0.0015 0.0050 - - -
m,p-Xylene ND 0.0026 0.010 - - -
o-Xylene ND 0.00098 0.0050 - - -
Surrogate Recovery
2-Fluorotoluene 0.088 0.1 88 75-134
Analyte LCS
Result
LCSD
Result
SPK
Val
LCS
%REC
LCSD
%REC

LCS/LCSD
Limits

RPD RPD
Limit
TPH(btex) 0.63 0.57 0.60 105 95 82-118 10.2 20
MTBE 0.090 0.091 0.10 90 91 61-119 1.54 20
Benzene 0.10 0.098 0.10 105 98 77-128 6.46 20
Toluene 0.11 0.099 0.10 106 99 74-132 6.60 20
Ethylbenzene 0.11 0.10 0.10 108 103 84-127 5.46 20
m,p-Xylene 0.22 0.21 0.20 108 103 80-120 5.25 20
o-Xylene 0.11 0.10 0.10 107 101 80-120 5.77 20
Surrogate Recovery
2-Fluorotoluene 0.10 0.095 0.10 101 95 75-134 5.34 20
CA ELAP 1644 • NELAP 4033ORELAP

Quality Control Report
McCampbell Analytical, Inc. 1534 Willow Pass Road, Pittsburg, CA 94565-1701 Toll Free Telephone: (877) 252-9262 / Fax: (925) 252-9269 http://www.mccampbell.com / E-mail: [email protected] "When Quality Counts" Client: Environmental Science Associates
Project: D181242.01; Ukiah Riverside Park
Date Analyzed: 03/24/2022 - 03/28/2022
Date Prepared: 03/23/2022
WorkOrder: 2203E13
BatchID: 241886
Analytical Method: SW8015B
Unit: mg/Kg
Sample ID: MB/LCS/LCSD-241886
2203E13-001AMS/MSD
Instrument: GC9a
Matrix: Soil
Extraction Method: SW3550B
QC Report for SW8015B w/out SG Clean-Up
Analyte MB
Result

MDL RL SPK
Val
MB SS
%REC
MB SS
Limits
TPH-Diesel (C10-C23) ND 0.78 2.0 - - -
TPH-Motor Oil (C18-C36) ND 4.6 10 - - -
Surrogate Recovery
C9 21 25 85 70-130
Analyte LCS
Result
LCSD
Result
SPK
Val
LCS
%REC
LCSD
%REC

LCS/LCSD
Limits

RPD RPD
Limit
TPH-Diesel (C10-C23) 35 36 40 89 90 70-130 1.17 20
Surrogate Recovery
C9 21 21 25 85 84 70-130 0.539 20
Analyte MS
Result
MSD
Result
SPK
Val
SPKRef
Val
MS
%REC
MSD
%REC
MS/MSD
Limits

RPD RPD
Limit
MS
DF
TPH-Diesel (C10-C23) 1 31 31 40 2.117 71 73 70-130 1.90 20 Surrogate Recovery
C9 1 21 21 25 86 86 70-130 0.183 20
CA ELAP 1644 • NELAP 4033ORELAP

McCampbell Analytical, Inc.
1534 Willow Pass Rd
Pittsburg, CA 94565-1701
(925) 252-9262
CHAIN-OF-CUSTODY RECORD Page
Lab ID Matrix Collection Date Hold
Requested Tests (See legend below)
Report to:

Michael Burns
2600 Capitol Avenue, Suite 200
Sacramento, CA 95816
(650) 391-4880 FAX:

PO:
03/23/2022
Client ID
Project: D181242.01; Ukiah Riverside Park
WorkOrder: 2203E13
1 of 1
Date Logged:

Date Received: 03/23/2022
1 2 3 4 5 6 7 8 9 10 11 12
Environmental Science Associates
Bill to:

Jeff Trow
Environmental Science Associates
2600 Capitol Avenue, Suite 200
Sacramento, CA 95816
Requested TAT: 5 days;
ClientCode: ESAS
Email: [email protected]
EDF EQuIS Email HardCopy ThirdParty
[email protected]
Excel
CLIP J-flag
cc/3rd Party:

WaterTrax
Detection Summary
Dry-Weight
2203E13-001 S-1 Soil 3/23/2022 09:00 A A A A A A A
2203E13-002 S-2 Soil 3/23/2022 09:34 A A A A A A A
2203E13-003 S-3 Soil 3/23/2022 09:13 A A A A A A A
2203E13-004 S-4 Soil 3/23/2022 09:24 A A A A A A A
Prepared by: Tina Perez
NOTE: Soil samples are discarded 60 days after receipt unless other arrangements are made (Water samples are 30 days).

Hazardous samples will be returned to client or disposed of at client expense.

Comments:
8081PCB_S 8260B_S 8270_SCSM_S CAM17MS_TTLC_S
G-MBTEX_S PRDisposal Fee TPH(DMO)_S
1 2 3 4
5 6 7 8
9 10
Test Legend:
11 12
The following SampIDs: 001A, 002A, 003A, 004A contain testgroup Multi Range_S.

LabID ClientSampID Collection Date
& Time
Date Logged:

Matrix Test Name Containers TAT
/Composites

WORK ORDER SUMMARY
Work Order: 2203E13
Comments
Client Name: ENVIRONMENTAL SCIENCE ASSOCIATES Project: D181242.01; Ukiah Riverside Park QC Level: LEVEL 2
Dry- Hold
Weight
Sub
Out
Bottle &
Preservative
3/23/2022
Sediment
Content
WriteOn EDF Excel EQuIS Email HardCopy ThirdParty J-flag Client Contact: Michael Burns
Contact's Email: [email protected]
WaterTrax
Head Test Due Date
Space
U**
McCampbell Analytical, Inc. 1534 Willow Pass Road, Pittsburg, CA 94565-1701 Toll Free Telephone: (877) 252-9262 / Fax: (925) 252-9269 http://www.mccampbell.com / E-mail: [email protected] "When Quality Counts" 001A S-1 Soil Multi-Range TPH 1 Stainless Steel tube 3/23/2022 9:00 5 days 2"x6"
3/30/2022
SW6020 (CAM 17) 5 days 3/30/2022
SW8270C (SVOCs) 5 days 3/30/2022
SW8260B (VOCs) 5 days 3/30/2022
SW8081A/8082 (OC Pesticides+PCBs) 5 days 3/30/2022
002A S-2 Soil Multi-Range TPH 1 Stainless Steel tube 3/23/2022 9:34 5 days 2"x6"
3/30/2022
SW6020 (CAM 17) 5 days 3/30/2022
SW8270C (SVOCs) 5 days 3/30/2022
SW8260B (VOCs) 5 days 3/30/2022
SW8081A/8082 (OC Pesticides+PCBs) 5 days 3/30/2022
003A S-3 Soil Multi-Range TPH 1 Stainless Steel tube 3/23/2022 9:13 5 days 2"x6"
3/30/2022
SW6020 (CAM 17) 5 days 3/30/2022
SW8270C (SVOCs) 5 days 3/30/2022
SW8260B (VOCs) 5 days 3/30/2022

* STLC and TCLP extractions require 2 days to complete; therefore, all TATs begin after the extraction is completed (i.e., One-day TAT yields results in 3 days from sample submission).

NOTES:
- MAI assumes that all material present in the provided sampling container is considered part of the sample - MAI does not exclude any material from the sample prior to sample preparation unless requested in writing by the client.

U** = An unpreserved container was received for a method that suggests a preservation in order to extend hold time for analysis.

LabID ClientSampID Collection Date
& Time
Date Logged:

Matrix Test Name Containers TAT
/Composites

WORK ORDER SUMMARY
Work Order: 2203E13
Comments
Client Name: ENVIRONMENTAL SCIENCE ASSOCIATES Project: D181242.01; Ukiah Riverside Park QC Level: LEVEL 2
Dry- Hold
Weight
Sub
Out
Bottle &
Preservative
3/23/2022
Sediment
Content
WriteOn EDF Excel EQuIS Email HardCopy ThirdParty J-flag Client Contact: Michael Burns
Contact's Email: [email protected]
WaterTrax
Head Test Due Date
Space
U**
McCampbell Analytical, Inc. 1534 Willow Pass Road, Pittsburg, CA 94565-1701 Toll Free Telephone: (877) 252-9262 / Fax: (925) 252-9269 http://www.mccampbell.com / E-mail: [email protected] "When Quality Counts" 003A S-3 Soil SW8081A/8082 (OC Pesticides+PCBs) 1 Stainless Steel tube 3/23/2022 9:13 5 days 2"x6"
3/30/2022
004A S-4 Soil Multi-Range TPH 1 Stainless Steel tube 3/23/2022 9:24 5 days 2"x6"
3/30/2022
SW6020 (CAM 17) 5 days 3/30/2022
SW8270C (SVOCs) 5 days 3/30/2022
SW8260B (VOCs) 5 days 3/30/2022
SW8081A/8082 (OC Pesticides+PCBs) 5 days 3/30/2022

* STLC and TCLP extractions require 2 days to complete; therefore, all TATs begin after the extraction is completed (i.e., One-day TAT yields results in 3 days from sample submission).

NOTES:
- MAI assumes that all material present in the provided sampling container is considered part of the sample - MAI does not exclude any material from the sample prior to sample preparation unless requested in writing by the client.

U** = An unpreserved container was received for a method that suggests a preservation in order to extend hold time for analysis.

Sample Receipt Checklist
McCampbell Analytical, Inc. 1534 Willow Pass Road, Pittsburg, CA 94565-1701 Toll Free Telephone: (877) 252-9262 / Fax: (925) 252-9269 http://www.mccampbell.com / E-mail: [email protected] "When Quality Counts" Client Name: Environmental Science Associates
WorkOrder №: 2203E13
Date Logged: 3/23/2022
Matrix: Soil Logged by: Tina Perez
Carrier: FedEx
Shipping container/cooler in good condition? Yes No
Custody seals intact on shipping container/cooler? Yes No NA Samples Received on Ice? Yes No
Chain of custody present? Yes No
Chain of custody signed when relinquished and received? Yes No Chain of custody agrees with sample labels? Yes No
Samples in proper containers/bottles? Yes No
Sample containers intact? Yes No
Sufficient sample volume for indicated test? Yes No
All samples received within holding time? Yes No NA
Sample/Temp Blank temperature NA
ZHS conditional analyses: VOA meets zero headspace Yes No NA requirement (VOCs, TPHg/BTEX, RSK)?
pH acceptable upon receipt (Metal: <2; Nitrate 353.2/4500NO3:
<2; 522: <4; 218.7: >8)?
Yes No NA
Temp: 2.1°C
Chain of Custody (COC) Information
Sample IDs noted by Client on COC? Yes No
Date and Time of collection noted by Client on COC? Yes No Sampler's name noted on COC? Yes No
Sample Receipt Information
Sample Preservation and Hold Time (HT) Information
Sample labels checked for correct preservation? Yes No
Project: D181242.01; Ukiah Riverside Park
(Ice Type: WET ICE )
Comments:
pH tested and acceptable upon receipt (200.7: ≤2; 533: 6 - 8; 537.1: 6 - 8)?
Yes No NA
UCMR Samples:

Free Chlorine tested and acceptable upon receipt (<0.1mg/L) [not applicable to 200.7]?
Yes No NA
Date and Time Received: 3/23/2022 12:14
Received by: Tina Perez
COC agrees with Quote? Yes No NA
Custody seals intact on sample bottles? Yes No NA

COU 2122-203-A1

CITY OF UKIAH
AMENDMENT NO. 1
TO

PROFESSIONAL SERVICES AGREEMENT

BETWEEN
ENVIRONMENTAL SCIENCE ASSOCIATES and THE CITY OF UKIAH
This Amendment No. 1, entered on June 30, 2022 revises the Agreement for Professional services dated March 8, 2022 between the City of Ukiah and Environmental Science Associates (ESA), for professional consulting services relating to soil sampling at Riverside Park in support of the Riverside Park Regeneration Project.

This Amendment No. 1 adds a second round of soil sampling, and an additional $8,352, as described in Exhibit 1. This revises the total, not-to-exceed amount to $16,752.

Except as expressly amended by this Amendment, all other terms remain unchanged and in full force and effect.

IN WITNESS WHEREOF, THE PARTIES HAVE EXECUTED THIS
AMENDMENT ON THE EFFECTIVE DATE:

ENVIRONMENTAL SCIENCE ASSOCIATES (ESA)
BY: DATE:

PRINT NAME:

CITY OF UKIAH
BY: DATE:

SAGE SANGIACOMO, CITY MANAGER
ATTEST
BY: DATE:

KRISTINE LAWLER, CITY CLERK

May 19, 2022
Ms. Michelle Irace, Planning Manager
Department of Community Development
300 Seminary Avenue, Ukiah, CA 95482
Sent via email: [email protected]
Subject: Second Round Soil Sampling at Proposed Ukiah Riverside Park Ukiah, California
Dear Ms. Irace:

Environmental Science Associates (ESA) is pleased to offer the City of Ukiah this scope of work and budget estimate to conduct a second round of soil sampling for the Ukiah Riverside Park Project in Ukiah, California. ESA conducted a soil sampling and analysis investigation that revealed one area at the location of Soil Sample S-2 that has chlordane and DDT in soil at concentrations that may limit the reuse of soil and may require disposal. The draft report documenting the investigation and discussing the results was provided to the City in a report dated April 21, 2022.

Scope of Work
Using the information acquired from the first soil sampling investigation, ESA will collect and chemically analyze a total of 8 soil samples from 4 step-out locations in a circle at 50 feet from the location of Sample S-2.

The attached grading plan shows the sample locations in red and the table below lists the four proposed sample locations and the estimated depth of proposed excavation at each location.

Test Pit Existing
Elevation
Proposed
Elevation
Elevation
Decrease
S-2 587.5 586.5 1.00
S-2-NW 588.5 587.25 1.25
S-2-SW 587.75 587 0.75
S-2-NE 587.75 586.75 1.00
S-2-SE 588.25 587.5 0.75
We understand that the City will provide a backhoe and operator to excavate pits at each sample location. The sample depths will be determined by examining the sidewalls and bottom of each pit. One soil sample will collected from each location at about 6 inches below the ground surface (bgs). A deeper sample will be collected at 6 inches below the proposed depth of excavation for the proposed Riverside Park project, estimated to be no more than 2 feet bgs at each of the four locations. The soil samples will be sealed in their sampling containers, labeled with a unique identification number, placed in an ice chest with ice for preservation, and delivered to McCampbell Analytical Laboratory, a state-certified analytical laboratory, along with chain-of-custody documentation. Based on the previous analytical results, the soil samples will be analyzed for organochlorine pesticides by EPA Method 8081A and lead by EPA Method 6010C/6020A.

May 19, 2022

The lead concentrations will be compared first to background levels from published studies to identify those chemicals that are present at naturally occurring background levels. General background levels are available from Shakelette, Hansford T. and Josephine G. Boerngen, 1984, Element Concentrations in Soils and Other Surficial Materials of the Conterminous United States, USGS Prof. Paper 1270. All of the chemical cons will be compared to the 2019 Environmental Screening Levels (ESLs) developed by the San Francisco Bay Regional Water Quality Control Board (RWQCB). ESLs are screening levels used by regulatory agencies throughout the state to assess whether further investigation and possibly cleanup is needed at sites where hazardous materials are suspected to have been spilled. ESLs are risk-based levels based on both human health and ecological habitat, which can provide comparative guidance as to whether a given chemical is present in soil at levels that might be unsuitable for a wetland habitat.

Upon receipt of the analytical results, ESA will prepare a draft report that incorporates the results of the first sampling event, documenting both investigations, tabulating the results, comparing the results to the ESLs, and providing recommendations for the management of the soil. ESA will provide one electronic draft report for your review and comment, followed by one final electronic report.

Assumptions
The following assumptions were made in preparing this scope of work:

The City will provide or arrange right-of-entry and unrestricted access to the property.

The City will provide a backhoe and operator.

The soil sampling can be completed in one day.

One electronic copy of the draft and final report of findings.

Budget Estimate
The budget for the above-described scope of work is estimated at $8,352 and will be invoiced on a time-andmaterials basis. ESA will invoice the City only for hours actually expended on this project. This estimate is not expected to be exceeded unless there is a change to the scope from conditions encountered or in response to a request from the City. In the event of a change to the scope, the City will be informed as soon as possible of the change and its effect on the budget, if any. At no time will ESA exceed this initial estimate without prior written authorization from the City. This task can be authorized by the City as Task 2 using the existing contract between the City and ESA.

We thank you for the opportunity to provide environmental consulting assistance and are prepared to schedule the work at your convenience and upon your written authorization. If you have any questions or would like additional information, please contact us.

Sincerely,
Michael G. Burns, PG, CEG, CHG

June 5, 2022
Ms. Michelle Irace, Planning Manager
Department of Community Development
300 Seminary Avenue, Ukiah, CA 95482
Sent via email: [email protected]
Subject: Soil Sampling Results Report
Proposed Ukiah Riverside Park
Ukiah, California
Dear Ms. Irace:

Environmental Science Associates (ESA) conducted a soil investigation at the proposed Ukiah Riverside Park in Ukiah, California, on behalf of the City of Ukiah and in accordance with our proposals dated March 2, 2022, and May 19, 2022. The project site is predominantly undeveloped land that the City is considering developing as a park with wetlands. The purpose of the soil sampling and analysis is to inform the project design.

Site History
According to a 1999 Phase I environmental site assessment, the project site was previously used for sewage treatment ponds from the 1930s to 1958, as identified in Figure 1. A trap shooting range (Ukiah Rod & Gun Club) from at least 1968 to 1978 and a former police shooting range from 1968 to 1978 (Dannatt 1999) were previously located in the southern portion of the project site. A large pit in the central portion of the property was used to mine gravel from approximately 1981 until 1986. Since 1986, the pit area has been filled in with concrete, asphalt, street sweepings, and brush by a variety of agencies within the City and County (Public Works, Utilities, and County Roads). In addition, other areas of the project site have been used by the City for debris.

Unauthorized dumping of household debris has also occurred on the central and southern portions of the project site.

Screening Levels
The analytical testing results are tabulated on Tables 1, 2, 3, and 4 and discussed in the sections below. The results from the March 23, 2022, sampling event are tabulated on Tables 1, 2, and 3, and identify the chemicals of concern. The May 26, 2022, sampling event tested only for the chemicals of concern identified during the March 23, 2022, sampling event. The results of both sampling events for the chemicals of concern are tabulated on Table 4.

The metals results are first compared to background levels from published studies to identify those chemicals that are present at naturally occurring background levels. General background levels are available from the Kearney Foundation: Background Concentrations of Trace and Major Elements in California Soils, dated March 1996.

Only those metals that exceed background levels are evaluated further. All results are compared to the California Code of Regulations (CCR) Title 22 Total Threshold Limit Concentrations (TTLCs) to assess whether onsite soils would be considered a hazardous waste if disposed of at an offsite landfill permitted to accept the waste.

June 5, 2022

All results are compared to the 2019 Environmental Screening Levels (ESLs) developed by the San Francisco Bay Regional Water Quality Control Board (RWQCB 2019). ESLs are screening levels used by regulatory agencies throughout the state to assess whether further investigation and possibly cleanup is needed at sites where hazardous materials are suspected to have been spilled. ESLs are risk-based levels based on both human health and ecological habitat, which can provide comparative guidance as to whether a given chemical is present in soil at levels that might pose risks to construction workers, the public, or the environment. Tables 1, 2, and 3 use the terrestrial ESLs, which are ecological screening levels that are lower than the construction worker ESLs. Table 4 includes both the terrestrial and construction worker ESLs for the results from both sampling events. Note that the proposed project would result in a wetland environment for which the beneficial reuse screening criteria discussed below would provide more relevant guidance.

All results are compared to the 2000 RWQCB Beneficial Reuse of Dredged Materials: Sediment Screening and Testing Guidelines, dated May 2000. Beneficial reuse screening criteria are ecological acceptance criteria used by the San Francisco RWQCB to assess whether fill would be acceptable for use in restoring wetlands and levees on the margins of San Francisco Bay. The screening criteria include surface and foundation beneficial reuse screening criteria. Surface beneficial reuse screening criteria are more stringent and apply to the top three feet of materials. Foundation beneficial reuse screening criteria are less stringent and apply to material buried under three feet of surface beneficial reuse material. Although the Riverside Park project would not import fill materials, the screening criteria provide a useful comparison to assess whether the onsite materials would be acceptable in a wetlands environment.

March 23, 2022, Sampling Event
Sampling and Laboratory Analysis
Using the information acquired from the 1999 Phase I assessment, historical aerial photographs, and topographic maps, ESA collected and chemically analyzed four shallow (i.e., 6 to 12 inches in depth) soil samples on March 23, 2022, at the locations shown on Figure 1. Samples S-1, S-2, and S-3 are located within the footprint of the former sewage treatment ponds. Sample S-4 is located in the area of the former trap shooting range and former police shooting range.

The samples were collected at about 6 to 12 inches below the ground surface using a shovel and trowel. The soil samples were sealed in their sampling containers, labeled with a unique identification number, placed in an ice chest with ice for preservation, and delivered on the same day to McCampbell Analytical Laboratory, a statecertified analytical laboratory, along with chain-of-custody documentation. The soil samples were analyzed for the following chemicals using the cited methods:
 Total petroleum hydrocarbons (TPH) as gasoline, diesel, and motor oil by EPA Method 8015Bm  Volatile organic compounds (VOCs) by EPA Method 8260B  Semivolatile organic compounds (SVOCs) by EPA Method 8270C  Organochlorine pesticides and polychlorinated biphenyls (PCBs) by EPA Method 8081A/8082  CAM 17 metals (antimony, arsenic, barium, beryllium, cadmium, cobalt, chromium, copper, lead, total mercury, molybdenum, nickel, selenium, silver, thallium, vanadium, and zinc) by EPA Method 6020

June 5, 2022

Analytical Results and Screening Criteria
The March 23, 2022, sampling event laboratory analytical report is provided in Appendix A. The chemical results are tabulated on Tables 1, 2, and 3, along with the relevant screening criteria. Only those chemicals with at least one detection above laboratory reporting limits are listed; chemicals with no results above laboratory reporting limits are not listed and are concluded to be below all screening criteria.

Discussion
Hazardous Waste Levels
None of the reported concentrations of chemicals in soil exceeded their respective TTLCs for those chemicals that have listed TTLC values. Based on the analytical results, the soil would not be considered hazardous waste and could be accepted at any Class III non-hazardous waste landfill, if offsite disposal is considered.

Volatile and Semivolatile Organic Compounds, and Petroleum Hydrocarbons The results for volatile and semivolatile organic compounds, and petroleum hydrocarbons are tabulated on Table 1. None of the reported concentrations exceeded any screening criteria. These suites of chemicals are more volatile; the low to non-detectable results do not indicate a respiratory risk to construction workers or the public.

The low to non-detectable results for these chemicals also indicate no risk to the environment.

Metals
The results for metals are tabulated on Table 2. Lead and selenium were the only metals detected above background levels and only at the location of Sample S-2. The concentration of selenium in Sample S-2 did not exceed the terrestrial ESL or surface or foundation beneficial reuse screening criteria, indicating that the soil in this location does not pose a risk to construction workers, the public, or the environment relative to selenium.

The concentration of lead at the location of Sample S-2 exceeded both the terrestrial ESL and the surface beneficial reuse criteria. If the soil at this location were excavated and mixed with soil from the rest of the property during grading, the average concentration would be 63.25 milligrams per kilogram (mg/kg), which would still exceed both the terrestrial ESL and the surface beneficial reuse criteria. From the perspective of beneficial reuse and protection of the environment, the soil at the location of Sample S-2 would qualify for use as foundation material, meaning that if this area where covered with or moved to an area that could be covered with three feet of soil that meets surface beneficial reuse screening criteria, the covered soil would not be expected to pose a risk to construction workers, the public, or the environment.

Organochlorine Pesticides and PCBs
The results for organochlorine pesticides and PCBs are tabulated on Table 3. PCBs were not detected above laboratory reporting limits and are assumed to be at concentrations below all screening criteria since there are no detections above the laboratory reporting limit.

June 5, 2022

The pesticides chlordane (both a-chlordane and g-chlordane) and DDT and its degradation products of DDD and DDE are the only organochlorine pesticides detected above laboratory reporting limits and only at the locations of Samples S-1 and S-2.

The concentration of a-chlordane and g-chlordane at the location of Sample S-2 exceeded the terrestrial ESL and both the surface and foundation beneficial reuse screening criteria. This indicates that soil in the area of Sample S-2 would pose a risk to the environment. Note that the concentrations of chlordane do not exceed construction worker ESLs. The sample at S-1 did not have chlordane above laboratory reporting limits.

To assess the average chlordane concentration that would result from grading and mixing soil throughout the project site, the average concentrations of all four samples are included in Table 3, using one-half of the laboratory reporting limit for those results reported at below reporting limits. If mixed through grading of the property, the average concentrations of a-chlordane and g-chlordane would be 0.0057 mg/kg and 0.0048 mg/kg, respectively. The average concentrations would be below the chlordane terrestrial ESL of 0.00853 mg/kg, but would still exceed both the surface and foundation beneficial reuse screening criteria of 0.0023 mg/kg and 0.0048 mg/kg, respectively. This indicates that mixing soil from the area of Sample S-2 with soil throughout the project site would still result in soil unsuitable for beneficial reuse in a wetland environment.

The concentrations of DDT at the locations of Samples S-1 and S-2 exceeded the terrestrial ESL and both the surface and foundation beneficial reuse screening criteria. In addition, the average total DDT concentration (i.e., sum of DDD, DDE, and DDT) of 0.0449 mg/kg would still exceed the ESL of 0.0011 mg/kg and the surface beneficial reuse screening criteria of 0.007 mg/kg, but not the foundation beneficial reuse screening criteria of

0.0461 mg/kg. This indicates that soil in the area of Samples S-1 and S-2 would be unsuitable for beneficial reuse in a wetlands environment unless removed or covered with three feet of clean fill.

Summary
The areas around Samples S-3 and S-4 do not have chemical concentrations that exceed guidance levels, indicating that soil in the southern portion of the property would have no restrictions on its use. The areas around Samples S-1 and S-2 in the northern portion of the property have chemical concentrations that would restrict the reuse of soil. The concentrations of chlordane and DDT in soil at the area around Sample S-2, and to a lesser extent DDT in Sample S-1, indicate soil in these local areas may be unsuitable for use as a public park and as a wetland habitat in their present condition. Options for addressing this condition could include the following:
 Move or dispose of the soil: If soil in the area around Samples S-1 and S-2 is to be graded and moved, the soil could be excavated and disposed of at any Class III non-hazardous waste landfill. Alternately, the excavated soil could be placed in other onsite areas, provided the soil is covered with three feet of clean soil to isolate the contaminated soil from the public and the environment. It is unknown whether chlordane and/or DDT are present in the surrounding or deeper soil at concentrations that exceed screening criteria. To further characterize the extent and depth in the area around Samples S-1 and S-2, additional samples could be collected and analyzed for organochlorine pesticides and lead.

June 5, 2022

 Cover the soil: Alternately, the project design could be modified to cover the area around Samples S-1 and S-2 with three feet of clean fill to isolate the contaminated soil from the public and the environment.

After discussion of the results with the City and Patrick Ferrar of the Melton Design Group, the project team decided to conduct a second sampling event in the area around the location of Sample S-2 to assess whether the location of Sample S-2 is an isolated hot spot or an indication of a more extensive area of material that will not be suitable for beneficial reuse.

May 26, 2022, Sampling Event
Sampling and Laboratory Analysis
Using the information acquired from the March 23, 2022, sampling event, ESA collected and chemically analyzed nine additional soil samples on May 26, 2022. Four sample locations were sampled at distances of 50 feet radially out from Sample S-2 at the locations shown on Figure 1, with one shallow (one foot) and one deeper sample collected at each location. The deeper sample depths were based on the proposed depth of excavation of the restoration project, as summarized below.

Sample
Location
Existing
Elevation
Proposed
Elevation
Elevation
Decrease
Sample
Depths in Feet
S-2 587.5 586.5 1.00 2
S-2-NW 588.5 587.25 1.25 1 & 2.25
S-2-SW 587.75 587 0.75 1 & 1.75
S-2-NE 587.75 586.75 1.00 1 & 2
S-2-SE 588.25 587.5 0.75 1 & 1.75
The samples were collected using a shovel and trowel. The soil samples were sealed in their sampling containers, labeled with a unique identification number, placed in an ice chest with ice for preservation, and delivered on the same day to McCampbell Analytical Laboratory, a state-certified analytical laboratory, along with chain-ofcustody documentation. The soil samples were analyzed for the chemicals of concern that were identified during the first sampling event using the cited methods as listed below:
 Organochlorine pesticides by EPA Method 8081A
 Lead by EPA Method 6020
Analytical Results and Screening Criteria
The May 26, 2022, sampling event laboratory analytical report is provided in Appendix B. The chemical results are tabulated on Table 4 and include the March 23, 2022, results for organochlorine pesticides and lead. Only those chemicals with at least one detection above laboratory reporting limits are listed; chemicals with no results above laboratory reporting limits are not listed and are concluded to be below all screening criteria.

June 5, 2022

Discussion
Hazardous Waste Levels
None of the reported concentrations of chemicals in soil exceeded their respective TTLCs for those chemicals that have listed TTLC values. Based on the analytical results, the soil would not be considered hazardous waste and could be accepted at any Class III non-hazardous waste landfill, if offsite disposal is considered. Table 4 provides the comparison of chemical results to TTLCs.

Lead
The concentrations of lead in Samples S-2-1 and S-2-SE-1 exceeded background levels. However, all other sample results are within background levels. Consequently, when the concentrations of lead in all 13 samples are averaged, the average concentration is 81.46 mg/kg, which would decrease to within background levels.

However, although the overall concentrations of lead are typical of background levels, the concentration of 480 mg/kg at Sample S-2-SE-1 does exceed the ESL of 160 mg/kg for construction workers. As discussed below, the concentrations of organochlorine pesticides in some soil locations exceeds some regulatory action levels and such soil is recommended for offsite disposal. To address construction worker safety, it is recommended that the soil at Sample S-2-SE-1 (one foot depth) and radially outward for 25 feet also be removed and disposed of offsite. It is further recommended that dust suppression measures be implemented when excavating in the area of Sample S-2 and the four step-out sample locations.

The concentration of lead at the location of Sample S-2-1 and S-2-SE-1 exceeded both the ESL and the surface beneficial reuse criteria. If the soil at this location were excavated and blended with soil from the rest of the property during grading, the average concentration would be 81.46 mg/kg, which would still exceed both the terrestrial ESL and the surface beneficial reuse criteria. As discussed below, the results of the organochlorine pesticide analyses also indicate some soil should be removed and disposed of.

Organochlorine Pesticides
The results for all organochlorine pesticides analyses are tabulated on Table 4. The pesticides chlordane (both achlordane and g-chlordane) and DDT and its degradation products of DDD and DDE are the only organochlorine pesticides detected above laboratory reporting limits. The only detected concentrations that exceed any screening criteria are at the locations of Samples S-1, S-2, and S-2-NE.

The concentration of a-chlordane and g-chlordane at the location of Sample S-2-1, the shallow sample collected during the March 23, 2022, sampling event, is the only location and depth that exceeded the terrestrial ESL and both the surface and foundation beneficial reuse screening criteria. This indicates that the shallow soil at Sample S-2-1 is not suitable for beneficial reuse in the proposed wetland environment. Note that a-chlordane and g-chlordane were not detected above reporting limits in any other sample, indicating that the shallow soil at S-2-1 is an isolated hot spot relative to chlordane. As discussed below, the Sample S-2 location also has exceedances of DDT screening criteria.

June 5, 2022

DDT, the DDT degradation isomers of DDD and DDE, and total DDT (DDD plus DDE plus DDT) were detected at concentrations that exceed the terrestrial ESL and both the surface and foundation beneficial reuse screening criteria in Sample S-2-1. This location has the highest concentration of organochlorine pesticides of any of the samples. The deeper sample at S-2-2 did not detect any organochlorine pesticides, a pattern typical of all other sample locations.

The step-out sample location at S-2-NE also has DDD, DDE, and DDT at one foot and DDE at 2 feet in depth.

However, only the concentration of DDT at the one foot depth exceeds the terrestrial ESL; no other screening levels were exceeded, including the surface and foundation beneficial reuse criteria.

During the construction of the park, the grading and rearranging of topography of the project site would have the effect of blending the soil and generally averaging chemical concentrations. The average Total DDT concentration of for all 13 samples would be 0.0144 mg/kg, which would still exceed the terrestrial ESL and both the surface and foundation beneficial reuse screening criteria. This indicates that blending the soil at Sample S-2-1 with other onsite soil will not result in the average onsite DDT concentration decreasing to within acceptable beneficial reuse levels. If the shallow soil at Sample S-2 were excavated and disposed of at an offsite disposal location, the average DDT concentration would decrease to 0.00238, which would within both surface and foundation beneficial reuse screening criteria. Although the average concentration would exceed the terrestrial ESL, the surface and foundation beneficial reuse criteria are more appropriate for use in a wetland environment. Note that the removal of this soil would also remove soil with elevated concentrations of chlordane and lead. This indicates that the removal and offsite disposal of the top one foot of soil at the location and for about 25 feet around Sample S-2 would enable to beneficial reuse of all other onsite soil.

Summary and Recommendations
The areas around Samples S-1, S-3, and S-4 do not have chemical concentrations that would restrict the beneficial reuse of soil. The area around Sample S-2 has chemical concentrations that would restrict the reuse of soil. The concentrations of chlordane, DDT and its isomers, and lead in soil at the area around the location of Sample S-2, and to a lesser extent Sample S-2-SE-1 (due to lead), indicate soil in this limited area is are unsuitable for beneficial use as a public park and as a wetland habitat. To eliminate unsuitable soil, it is recommended that all soil at a 25 foot radius around the locations of S-2, S-2-NE, and S-2-SE be excavated and disposed of as Class III non-hazardous waste. Alternately, the City may have other construction projects where the excavated soil could be placed under an area to be covered with pavement or concrete to prfevent exposure to people and rthe environment.

June 5, 2022

We thank you for the opportunity to provide environmental consulting assistance. If you have any questions or would like additional information, please contact us.

Sincerely,
Michael G. Burns, PG, CEG, CHG
Geologist

___________ 
0 200 Feet North
Proposed Ukiah Riverside Park 201801242.01
Source: Image adapted from GoogleEarth 2021 Figure 1 – Soil Sample Locations Russian
River
Proposed
Wetland
Areas
General
Extent of
Proposed
Park
Extent
Approximate
extent of former
treatment ponds
S-2
S-2-NW
S-2-SW
S-2-NE
S-2-SE

June 5, 2022

TABLE 1

SUMMARY OF VOLATILE AND SEMIVOLATILE ORGANIC COMPOUNDS

AND PETROLEUM HYDROCARBONS SAMPLING RESULTS
Chemical S-1 S-2 S-3 S-4 TTLC ESLs
Surface
Reuse
Material
Foundation
Reuse
Material
Volatile organic compounds (VOCs)
Carbon Disulfide 0.0018 (J) < 0.0011 0.0019 (J) 0.0011 (J) ne ne ne ne 4-Isopropyl toluene < 0.0019 < 0.0019 < 0.0019 0.0026 (J) ne ne ne ne Semivolatile organic compounds (SVOCs)
Benzo (a) pyrene 0.032 (J) 0.071 (J) 0.0014 (J) 0.081 (J) ne 0.11 0.371 1.6 Benzo (b) fluoranthene < 0.052 < 0.10 0.0025 (J) < 0.10 (J) ne 1.1 0.371 ne Benzo (g.h.i) perylene 0.037 (J) 0.077 (J) 0.0022 (J) 0.090 (J) ne 2.5 0.310 ne Benzo (k) fluoranthene < 0.040 < 0.080 < 0.0010 0.043 (J) ne 2.8 0.258 ne Bis (2-ethylhexyl)
Phthalate 0.23 (J) < 0.38 0.0054 (J) < 0.19 ne 0.8 ne ne Chrysene < 0.027 < 0.054 0.0015 (J) 0.059 (J) ne 2.2 0.289 2.8 Dibenzofuran < 0.0037 < 0.0074 0.00028 (J) < 0.0037 ne ne ne ne Fluoranthene < 0.032 < 0.063 0.0013 (J) 0.10 ne 0.69 0.514 5.1 1-Methylnaphthalene < 0.013 < 0.026 0.0011 (J) < 0.013 ne ne 0.0121 ne 2-Methylnaphthalene < 0.019 < 0.038 0.0019 < 0.019 ne 0.88 ne ne Phenanthrene < 0.027 < 0.054 0.0042 0.041 (J) ne 7.8 0.237 1.5 Pyrene < 0.025 < 0.050 0.0014 0.072 (J) ne 45 0.665 2.6 Total petroleum hydrocarbons (TPH)
Gasoline < 0.55 < 0.55 < 0.55 < 0.55 ne 100 ne ne
Diesel 2.1 2.4 1.1 (J) 1.6 (J) ne 260 ne ne
Motor Oil 40 67 < 4.6 18 ne 1,600 ne ne
Notes:

All concentrations in milligrams per kilogram, approximately equivalent to parts per million Concentrations above the reporting limit are in bold
(J) = Estimated concentration below the reporting limit < ### indicates not detected above the listed reporting limit ne = screening level not established for this chemical
TTLC = Total Threshold Limit Concentrations, California Code of Regulations, Title 22, Chapter 11, Article 3, 66261.24 ESL = San Francisco Bay Regional Water Quality Control Board Environmental Screening Level, 2019 version Beneficial reuse criteria from RWQCB Beneficial Reuse of Dredged Materials: Sediment Screening and Testing Guidelines, May 2000

June 5, 2022

TABLE 2. SUMMARY OF METALS SAMPLING RESULTS – March 23, 2022 Chemical S-1 S-2 S-3 S-4 TTLC Background ESL
Surface
Reuse
Material
Foundation
Reuse
Material
Antimony 0.33 (J) 0.80 0.45 (J) 1.6 500 0.15 – 1.95 11 ne ne Arsenic 3.8 6.4 5.4 7.1 500 0.6 – 11 0.067 15.3 70
Barium 130 180 160 210 10,000 133 – 1,400 390 ne ne
Beryllium 0.38 (J) 0.37 (J) 0.46 (J) 0.62 75 0.25 – 2.7 5.0 ne ne Cadmium 0.12 (J) 0.58 0.11 (J) 0.15 (J) 100 0.05 – 1.7 1.9 0.33 9.6 Chromium 47 49 69 82 2,500 23 – 1,579 160 112 370
Cobalt 10 10 13 15 8,000 2.7 – 46.9 23
Copper 21 51 23 42 2,500 9.1 – 96.4 180 68.1 270
Lead 21 140 25 67 1,000 12.4 – 97.1 32 43.2 218
Mercury 0.077 0.12 < 0.038 0.14 20 0.10 – 0.90 13 0.43 0.70 Molybdenum 0.27 (J) 0.52 0.30 (J) 0.88 3,500 0.1 – 9.6 6.9 ne ne Nickel 63 60 87 110 2,000 9 – 509 86 112 120
Selenium < 0.32 0.58 < 0.32 < 0.32 100 0.015 – 0.43 2.5 0.64 ne Silver 0.14 (J) 0.19 (J) 0.15 (J) 0.51 500 0.80 25 0.58 3.7 Thallium < 0.072 < 0.072 <0.072 0.12 (J) 700 5.3 – 36.2 0.78 ne ne Vanadium 40 40 54 59 2,400 39 – 288 18 ne ne
Zinc 65 270 60 97 5,000 88 – 236 340 158 180
TABLE 3. SUMMARY OF ORGANOCHLORINE PESTICIDES AND PCBs SAMPLING RESULTS – March 23, 2022 Chemical S-1 S-2 S-3 S-4
Average

TTLC ESL
Surface
Reuse
Material
Foundation
Reuse
Material
a-Chlordane < 0.0043 0.010 (J) < 0.0043 < 0.0043 0.0057 2.5 0.00853 0.0023 0.0048 g-Chlordane < 0.0034 0.0089 (J) < 0.0034 < 0.0034 0.0048 2.5 0.00853 0.0023 0.0048 DDD < 0.0041 0.0082 (J) < 0.0041 < 0.0041 0.0051 1.0 2.7 ne ne DDE 0.0047 (J) 0.065 0.00043 (J) < 0.0029 0.0182 1.0 0.33 ne ne DDT 0.0064 (J) 0.083 < 0.0039 < 0.0039 0.0243 1.0 0.0011 ne ne Sum of DDTs 0.0132 0.1562 0.00453 0.0056 0.0449 ne ne 0.007 0.0461 PCBs < 0.32 < 0.32 < 0.32 < 0.32 0.16 50 0.23 0.0227 0.18 Notes for Tables 2 and 3:

All concentrations in milligrams per kilogram, approximately equivalent to parts per million Concentrations above the reporting limit are in bold
< ### indicates not detected above the listed reporting limit Results in yellow highlight exceed one or more background or screening levels (J) = Estimated concentration below the reporting limit ne = not established
TTLC = Total Threshold Limit Concentrations, California Code of Regulations, Title 22, Chapter 11, Article 3, 66261.24 ESL = San Francisco Bay Regional Water Quality Control Board Environmental Screening Level, 2019 version Reuse criteria = RWQCB Beneficial Reuse of Dredged Materials: Sediment Screening and Testing Guidelines, May 2000 Averages use one-half the detection limit for non-detect results

June 5, 2022

TABLE 4. SUMMARY OF ALL ORGANOCHLORINE PESTICIDES AND LEAD SAMPLING RESULTS Chemical Concentration in Milligrams per Kilogram
a-Chlordane g-Chlordane DDD DDE DDT Total DDT Lead
Sample and depth in feet below ground surface
S-1-1 <0.0043 <0.0034 <0.0041 0.0047 (J) 0.0064 (J) 0.0131 21 S-2-1 0.010 (J) 0.0089 (J) 0.0082 (J) 0.065 0.083 0.1562 140 S-2-2 <0.00043 <0.00034 <0.00041 <0.00029 <0.00039 <0.00109 19 S-2-NW-1 <0.00043 <0.00034 <0.00041 <0.00029 <0.00039 <0.00109 25 S-2-NW-2.25 <0.00043 <0.00034 <0.00041 <0.00029 <0.00039 <0.00109 14 S-2-SW-1 <0.00043 <0.00034 <0.00041 <0.00029 <0.00039 <0.00109 80 S-2-SW-1.75 <0.00043 <0.00034 <0.00041 <0.00029 <0.00039 <0.00109 23 S-2-SE-1 <0.00043 <0.00034 <0.00041 <0.00029 <0.00039 <0.00109 480 S-2-SE-1.75 <0.00043 <0.00034 <0.00041 <0.00029 <0.00039 <0.00109 71 S-2-NE-1 <0.00043 <0.00034 0.00044 (J) 0.00094 (J) 0.0013 0.00268 54 S-2-NE-2 <0.00043 <0.00034 <0.00041 0.00065 (J) <0.00039 0.00145 40 S-3-1 < 0.0043 <0.0034 <0.0041 0.00043 (J) <0.0039 0.00443 25 S-4-1 < 0.0043 <0.0034 <0.0041 <0.0029 <0.0039 0.0055 67 Average 0.0144 81.46
Average Minus S-2-1 0.00238 76.58
Action Levels
Background 0 0 0 0 0 0 12.4 - 97.1
TTLC 2.5 2.5 1.0 1.0 1.0 ne 1,000
ESL-Terrestrial 0.00853 0.00853 2.7 0.33 0.0011 ne 32
ESL-Worker 14 14 81 57 57 ne 160
Surface Reuse
Material 0.0023 0.0023 ne ne ne 0.007 43.2
Foundation
Reuse Material 0.0048 0.0048 ne ne ne 0.0461 218
Notes for Table 4:

All concentrations in milligrams per kilogram, approximately equivalent to parts per million Last number in sample number string is depth below ground surface in feet Concentrations above the reporting limit are in bold
< ### indicates not detected above the listed reporting limit (J) = Estimated concentration below the reporting limit ne = not established
Results in yellow highlight exceed one or more background or screening levels Results in red highlight exceed one or both beneficial reuse screening levels TTLC = Total Threshold Limit Concentrations, California Code of Regulations, Title 22, Chapter 11, Article 3, 66261.24 ESL = San Francisco Bay Regional Water Quality Control Board Environmental Screening Level, 2019 version Reuse criteria = RWQCB Beneficial Reuse of Dredged Materials: Sediment Screening and Testing Guidelines, May 2000 Averages use one-half the detection limit for non-detect results