OF TONE
CITY OF IONE
IONE, CA 95640
LIFORN
REGULAR MEETING STARTS AT 6:00 PM
Mayor Stacy Rhoades
Vice Mayor Jack Mitchell
Council Member Dominic Atlan
Council Member Alison LaFayne
Council Member Diane Wratten
AT 1 E. MAIN STREET, IONE, CA 95640
AND VIA ZOOM
City of lone is inviting you to a scheduled Zoom meeting.
Join Zoom Meeting
https://zoom.us/i/2351961316?pwd=d31WTW0zbVJLblpQNXBDQWtpZkRyUTO Meeting ID: 235 196 1316
Passcode: 95640
One tap mobile
+16699006833,2351961316#,*95640# US (San Jose)
+125321587822351961316#,,*95640# US (Tacoma)
Dial by your location
+1 669 900 6833 US (San Jose)
+1 253 215 8782 US (Tacoma)
+1 346 248 7799 US (Houston)
+1 929 205 6099 US (New York)
+1 301 715 8592 US (Washington DC)
+1 312 626 6799 US (Chicago)
Meeting ID: 235 196 1316
Passcode: 95640
Find your local number: https://zoom.us/u/aex3ZLbqgp
Tuesday, May 16, 2023
1 E. Main Street
Ione, CA 95640
CITY OF IONE IS A GENERAL LAW CITY DEDICATED TO
PROVIDING LEADERSHIP, ACCOUNTABILITY, AND FISCAL INTEGRITY
WHILE PROMOTING ECONOMIC OPPORTUNITIES AND MAINTAINING
A HIGH QUALITY OF LIFE FOR OUR CITIZENS
PLEASE LIMIT PUBLIC COMMENT/TESTIMONY TO FOUR MINUTES
Gov't. Code $54954.3
The lone City Council welcomes, appreciates, and encourages participation in the City Council Meeting. The City Council reserves the right to reasonably limit the total time for public comment on any particular noticed agenda item as it may deem necessary.
Full staff reports and associated documents are available for public review at the Office of he City Clerk, City Hall, 1 E. Main Street, lone, CA. Hard copies may be obtained fo
3.60 for pages 1-5 and $.45 for each additional page. Documents that are not availabl when the agenda is posted will be made available for public review at the meeting.
OF TONE
CITY OF IONE
IONE, CA 95640
CRLIFORNIN
AGENDA
A. ROLL CALL 6:00 P.M.
B. CLOSED SESSION
CONFERENCE WITH LEGAL COUNSEL: Public Employee Appointment- City Manager - Government Code 54957.6.
C. REPORT FROM CLOSED SESSION
D. PLEDGE OF ALLEGIANCE
C. APPROVAL OF AGENDA
D. PRESENTATIONS/ANNOUNCEMENTS:
E. PUBLIC COMMENT:
EACH SPEAKER IS LIMITED TO 4 MINUTES.
NOTE: This is the time for members of the public who wish to be heard on matters that do not appear on the Agenda. Persons may address the City Council at this time on any subject within the jurisdiction of the lone City Council.
Please be mindful of the 4 minute time limit per person. Pursuant to the Brown Act, the City Council may not take action or engage in a detailed discussion on an item that does not appear on the Agenda. However, matters that require Council action will be referred to staff for a report and/or recommendation for possible action at a future Council meeting. Is there anyone in the audience who wishes to address the Council at this time?
Notice to the Public: All matters listed under this category are considered to be routine and will be enacted by one motion. Any item may be removed for discussion and possible action and made a part of the regular agenda at the request of a Council Member(s).
F. INFORMATION ITEMS:
All matters listed under this category are for information only with no action to be taken by the City Council.
No information only items.
2 OF TONE
CITY OF IONE
IONE, CA 95640
IFORN
G. CONSENT CALENDAR:
All matters listed under this category are considered to be routine and will be enacted by one motion. Any item may be removed for discussion and possible action and made a part of the regular agenda at the request of a Councilmember (s).
1. Minutes of May 2, 2023
2. Warrants
H. PUBLIC HEARING: None.
I. REGULAR AGENDA:
1. Train Depot Grant Deed
Recommendation: Adopt Resolution 2022-2023 - * of the City Council of the ity of lone declaring a portion of the property at 315 S. Mill Street as surpl ropertv and authorize the Interim Citv Manager to execute transf documents.
Secondary Wastewater Treatment Plant and Tertiary Treatment Plant Overview Recommendation: For information and staff direction.
J. REPORTS AND COMMUNICATIONS FROM CITY MANAGER
K. COUNCIL COMMENTS/COMMITTEE REPORTS/FUTURE AGENDA
ITEMS
L. ADJOURNMENT TO JUNE 6TH
NOTICE REGARDING CHALLENGES TO DECISIONS
Pursuant to all applicable laws and regulations, including without limitation, California Government Code Section 65009 and or California Public Resources Code Section 21177, if you wish to challenge in court any of the above decisions (regarding planning, zoning and/or environmental decisions), you may be limited to raising only those issues 3 OF TONT
CITY OF IONE
IONE, CA 95640
LIFORNI
you or someone else raised at the public hearing(s) described in this notice/agenda, or in written correspondence delivered to the City at, or prior to, this public hearing.
ADA COMPLIANCE STATEMENT
In compliance with the American with Disabilities Act, if you need special assistance to participate in this meeting, please contact City Clerk Janice Traverso at 209) 274-2412, ext. 102. Notification 24 hours prior to the meeting will enable the City to make reasonable arrangements to ensure accessibility to this meeting.
Upcoming Meetings:
May 19th: ARSA Meeting 10:00 A.M.
May 23rd. Parks and Recreation Commission Meeting 6:00 P.M.
June 1st: ACTC Commission Meeting 9:00 A.M.
June 6th: City Council Meeting 6:00 A.M.
June 8th: Howard Park Master Plan Workshop 5:30 P.M.
June 13th: Planning Commission Meeting 6:00 P.M.
June 14th Amador County Recreation Agency 12:30 P.M.
July 25th Amador Council of Tourism 4:00 P.M.
Agenda Item #G1
CITY OF IONE COUNCIL MEETING MINUTES
Meeting of May 2, 2023
Mayor Rhoades called meeting to order at 6:00 PM
A. ROLL CALL:
Present: Stacy Rhoades, Mayor
Jack Mitchell, Vice Mayor
Diane Wratten, Councilmember
Staff: Amy Gedney, Acting City Manager
Sean Cameron, City Attorney
Janice Traverso, City Clerk (6:03 pm)
B. CLOSED SESSION: Moved to end of meeting.
C. MAYOR RHOADES LED THE PLEDGE OF ALLEGIANCE
D. APPROVAL OF AGENDA:
It was moved by Councilmember LaFayne, seconded by Councilmember Atlan and carried to approve the agenda with Item H.2. - Warrants and Item H.5. - ACRA Pool Contract pulled from the Consent Calendar for discussion.
AYES: Rhoades, Mitchell, Atlan, LaFayne, Wratten
NOES: None
ABSENT: None
ABSTAIN: None
E. PRESENTATIONS/ANNOUNCEMENTS: None
F. PUBLIC COMMENT:
Larry Rhoades:
• Need to start testing CDC's groundwater—we don't want their water or their contamination-—this is against the law. There is still an open position for Amador County Environmental Health Officer.
Tommy Quinn:
• Complimented Robyn Ornsby and the volunteers for the Veterans Celebration this past weekend.
Dave Barnes:
• Thanked whoever was responsible for getting Caltrans to complete the drainage project on Main Street.
Dave Livingstone:
Nice affair for the troops on the weekend--thanked Robyn Ornsby and the City leaders for their support of this event.
• Support Dave Barnes, "Mr. Ice Cream" for bringing up the problem with the curbing out front of all the businesses-everyone is happy to see the problem corrected
• Safety problem in Wildflower--at the entrance to the park off Lupine- the fence has been destroyed, but there is still a pipe sticking up in the air, which is dangerous situation for anyone especially children. • Cars are traveling the same rate of speed on Highway 104 and Foothill Blvd.
G. INFORMATION ITEMS: No action taken.
1. Quarterly Groundwater Monitoring Report for City of lone and Castle Oaks Golf Course
2, Quarterly Groundwater Monitoring Report for WWTP
3. Summary of Parks and Recreation Commission meeting - April 25, 2023 H. CONSENT CALENDAR:
It was moved by Councilmember Wratten, seconded by Councilmember LaFayne and carried to approve the following:
1. Minutes of Regular Meeting April 18, 2023
3. Administration Quarterly Report - 1s Quarter 2023
4. Public Works Quarterly Report - 15 Quarter 2023
AYES: Rhoades, Mitchell, Atlan, LaFayne, Wratten
NOES: None
ABSENT: None
ABSTAIN: None
2. Warrants - Councilmember LaFayne asked:
• If the Council will be getting invoices or warrants in the future—-we are currently receiving both. In the future, the Council will be receiving only Warrants.
• Was the invoice for Sandy Gulch Sign Company was to replace the hanging lights. If so, they missed one light, it is still hanging. • Wilbur Ellis Company--the three entries are the same—it is split between three different funds.
Raw Water in Howard Park - used for the Sport fields and the large hydrant by the arena.
It was moved by Councilmember Atlan, seconded by Vice Mayor Mitchell and carried to approve the Warrants.
AYES: Rhoades, Mitchell, Atlan, LaFayne, Wratten
NOES: None
ABSENT: None
ABSTAIN: None
5. 2023 ACRA Pool Contract - Councilmember LaFayne commented on the agreement:
• It has not been reviewed by the Park & Recreation Commission • Different amounts referenced in the agreement, "The total cost for services under the agreement shall not exceed twenty-nine thousand dollars ($25,000) for the Term of this Agreement.
City Attorney, Sean Cameron stated that the current contract will be in effect until a new contract is approved. After discussion by Council, it was moved by Vice Mayor Mitchell, seconded by Councilmember Atlan and carried that the City move forward in good faith with the caveat that Park & Recreation Commission review the contract and then the Council will vote on the contract in June.
AYES: Rhoades, Mitchell, Atlan, LaFayne, Wratten
NOES: None
ABSENT: None
ABSTAIN: None
I. PUBLIC HEARING:
1. Zoning - City Planner Beth Thompson reviewed the revisions that were made to the Focused General Plan and Zoning Code Update:
1. Introduction
The Introduction provides an overview of the General Plan. No significant changes are made to Chapter 1.
2. Public Outreach & Vision
The Public Outreach & Vision chapter is updated to include the results of the community outreach and visioning efforts from Summer 2021. The Guiding Principles have been refined to reflect community input.
3. Land Use
The Land Use Element is updated to include more legible figures, update the Land Use Principles to reflect community input, update the Castle Oaks Gateway Policy Area figure and description to reflect the Development Agreement (as amended) for Castle Oaks, update the residential land use designations to clearly specify that densities are based on net acreage, address land use designations that support groundwater recharge, to encourage a variety of housing types and prices, to promote high quality development and property maintenance, and to address timing and extension of development agreements.
4. Circulation
The Circulation Element is updated to support a complete street and circulation system that serves all users, implement the requirements of State law related to vehicle miles traveled (VMT), to define Level of Service (LOS) which is measures traffic flow, to encourage a near-term solution to addressing truck traffic through lone, to support maintenance of existing streets, to ensure development funds its fair share of roadway and circulation improvements, and to encourage use of pedestrian, bicycle, and transit modes of travel to reduce reliance on single occupant vehicles.
5. Conservation & Open Space
The Conservation & Open Space Element is updated to address groundwater echarge, encourage drought preparedness, increase efforts to reduce greenhous as (GHG) emissions, and ensure consultation with Native American tribe:
consistent with the requirements of State law.
6. Noise & Safety
The Noise & Safety Element is updated to address emergency preparedness and evacuation, including incorporating recommendations from the Amador County Multi-Jurisdictional Local Hazard Mitigation Plan (LHMP), LHMP lone Annex, flooding and drainage, including the need for routine maintenance of creeks, reduce exposure to hazardous materials, include additional measures to address wildfire risks, provide measures to address climate change adaptation and resiliency, and to reduce exposure to excessive noise, including noise exposure affecting existing uses.
7. Economic Development
The Economic Development Element is updated to remove outdated information, to simplify language to make the element easier to read and implement and to enhance economic development efforts.
8. Public Facilities
The Public Facilities Element is updated to remove outdated information, to simplity language to make the element easier to read and implement, to ensure future development projects provide and fund their fair-share of public services and utilities, and to emphasize the City's desire to ensure public schools are located in lone to serve all grade levels.
9. Land Use Map
The Planning Commission discussed modifying the Land Use Map at its December 2022 meeting. The SB 2 grant that is funding this project is focused on increasing housing capacity within the City and providing streamlined and improved planning procedures to facilitate housing development. Modifications to the General Plan Land Use Map that would reduce the residential capacity of the City would be inconsistent with SB 2 funding for this project and are outside of the scope of the project. Therefore, staff recommends that potential modifications to the Land Use Map be addressed separately.
Mayor Rhoades opened the Public Hearing.
Larry Rhoades commented that his property has been downgraded from Commercial to C-T (Commercial Transitional), so I can cannot have an automotive repair shop. Beth Thompson commented there has not been any changes to the Land Use Map and I think Mr. Rhoades is referring to the Zoning Map, which does not necessarily conform to the General Plan. The City has added "High Density-Residential" to the property on Waterman Road and not changed the Zoning on the Ringer Ranch.
Virginia Silva commented that at the last General Plan update, I made it very clear that I wanted nothing to do with the City of lone. On the Land Use portion of the update it states, , "Implement the Silva Policy Area Land Use Vision and Policy and it explains what their plan is. The City has nothing to do with my property. Is that clear this time? Do you have any questions? Jim Scully commented:
• Vision Public Outreach and Vision portion of the General Plan Update, "Improve Roadways and Traffic-Residents have continually called for improvements to the roadways in and around the City. I contacted ACT and asked how many people have contact ACTC for a by-pass——there has been one person in the last 10 years that contacted ACTC-Dan Epperson.
• The Circulation Element states that the WIRIS is going to improve safety and improve quality of life-for whom? This whole study is most definitely challengeable and if you keep pushing it, we are going to challenge it. I have an email from a figure from the Amador Transportation Commission, which states they adamantly agree that lone needs a by-pass because both bridges downtown are at capacity—I checked on the way in and lone still has only one bridge. A lot of what you are hearing about this bypass is complete and total conjecture-yes, something needs to be done about downtown lone's traffic. Stats come out to less than one accident per year for the two intersections. This by-pass benefits one party--nobody in lone and if you do the mileage, it increases from 4.4 to 7.6 mileage. If you push forward with the bypass, we are pushing back!
Mayor Rhoades closed the public hearing.
It was moved by Councilmember Wratten, seconded by Councilmember Atlan and carried to adopt Resolution No. 2023-11 Amending the General Plan to implement the Focused General Plan Update.
AYES: Rhoades, Mitchell, Atlan, LaFayne, Wratten
NOES: None
ABSENT: None
ABSTAIN: None
DISCUSSION ITEMS:
For the record: Action minutes provide the necessary documentation of City Council action. Audio recordings are retained for those desiring more detail on particular agenda item discussions. These audio recordings provide an accurate and comprehensive backup of City Council deliberations and citizen discussions.
J. REGULAR AGENDA:
1. Interim City Manager - Determine course of action for filling the Interim City Manager position - There was discussion from the Council and public on how to fill the Interim City Manager. Staff previously advertised for the Interim City Manager position and received three applications. It was moved by Councilmember LaFayne, seconded by Councilmember Wratten and carried for Acting City Manager, Amy Gedney to be hired on as Interim City Manager and the recruitment for permanent City Manager be advertised.
AYES: Rhoades, Mitchell, Atlan, LaFayne, Wratten
NOES: None
ABSENT: None
ABSTAIN: None
2. Review of when "Closed Session" meeting times should be posted on the agenda—there was discussion by the Council and the public on when the meeting ime for Closed Session is scheduled After discussion, it was moved b Councilmember Atlan to start the meeting at 6:00 p.m. with Closed Session fron 6:00 to 6:30, if closed session runs longer than 30 minutes, at the discretion of the Mayor, it it looks like it is going to run longer than 30 minutes, the Mayor can convene back into open session and finish Closed Session at the end.
AYES: Rhoades, Mitchell, Atlan, LaFayne, Wratten
NOES: None
ABSENT: None
ABSTAIN: None
K. REPORTS AND COMMUNICATIONS FROM CITY MANAGER:
• City received five RFP's for City Attorney Services
L. COUNCIL COMMENTS/COMMITTEE REPORTS/FUTURE AGENDA
Councilmember Atlan:
• Met with Amy Gedney and gave her a list of projects.
Councilmember Wratten:
• Meet with Amy Gedney weekly on Wednesdays
• Would like the Interconnection Project on the next agenda.
Vice Mayor Mitchell:
• Had the first Ad Hoc Finance Committee Meeting
• AFPD - Measure M allocation has been corrected, so there will another reallocation.
• Miss lone pageants are currently being held
• Invited everyone to attend lone Homecoming
Councilmember LaFayne:
• Issues at Wildflower Subdivision-speeding, condition of streets Mayor Rhoades:
• Police Chief's contract on next agenda
• Fire Chief's stipend on next agenda
M. CLOSED SESSION:
1. CONFERENCE WITH LEGAL COUNSEL: Existing litigation: Section 54956.9 of the California Government Code - Amador Court Case Number 22- CV-12824; Amador Regional Sanitation Authority vs. City of lone and California Department of Corrections
2. CONFERENCE WITH LEGAL COUNSEL: Public Employee Performance Evaluation - City Manager - Government Code 54957.6
3. CONFERENCE WITH LEGAL COUNSEL: Public Employee Performance Evaluation - Police Chief - Government Code 54957.6
N. REPORT OUT OF CLOSED SESSION:
1. Intormation was received and direction was given.
2. Information was received and direction was given.
3. Information was received and direction was given.
O. ADJOURNMENT:
The meeting was adjourned by Mayor Rhoades.
Respectfully submitted,
Janice Traverso
City Clerk
City of lone Unpaid Invoice Report - UNPAID INV. REPORT Page: 1 Posting period: 04/23 May 10, 2023 10:35AM
Invoice Seq.# Description Invoice GL Peri GL Account Activity# GL Account Description Net Invoice Number Date Number Check Amount
CALIFORNIA POLICE CHIEFS ASSN
1605 MEMBERSHIP DUES FY 23-24 ALFRED 05/01/23 04/23 1111-70-6240 MEMBERSHIPS AND DUES 210.00 Total 1605: 210.00
CARBON COPY INC.
618713 COPY EXPENSE - APRIL 2023 04/26/23 04/23 1111-946220 OTHER CONTRACTUAL SERVICES 65.38 618713 COPY EXPENSE - APRIL 23 04/26/23 04/23 2111-50-6111 OFFICE EXPENSE 65.37 618713 COPY EXPENSE - APRIL 23 04/26/23 04/23 3111-50-6220 OTHER CONTRACTUAL SERVICES 65.38 Total 618713: 196.13
618714 1 COPY EXPENSE FD - APRIL 23 04/26/23 1111-94-6220 OTHER CONTRACTUAL SERVICES 35.92 Total 618714: 35.92
618940 TONER FOR COPIER 05/01/23 04/23 3111-50-6111 OFFICE EXPENSE 235.59 618940 TONER FOR COPIER 05/01/23 04/23 1111-94-6111 OFFICE EXPENSE 235.59 Total 618940. 471.18
CASELLE INC.
124792 : CONTRACT SUPPORTAANT - ANY 2023 05/01/23 04123 3131-50-6166 SOFTWARE PROGRAMS 453.25 124792 CONTRACT SUPPORT/MAINT - JUN 2023 05/01/23 04/23 1111-94-6166 SOFTWARE PROGRAMS 453.25 124792 CONTRACT SUPPORT/MAINT - JUN 2023 05/01/23 3111-50-6166 SOFTWARE PROGRAMS 453.25 124792 CONTRACT SUPPORT/MAINT - JUN 2023 05/01/23 04/23 2111-50-6166 SOFTWARE 453.25 Total 124792: 1,813.00
IONE PHARMACY
32020340 PHILIPS, HEART PADS X1 04/30/23 04/23 1111-75-6119 SAFETY EQUIPMENT 175.98 Total 32020340: 175.98
IW SOLAR LIC
23205 1 SOLAR PRODUCED-WWTP APR 23 05/01/23 04/23 3111-50-6170 UTILITIES 5,084.69 23205 SOLAR PRODUCED-WWTP APR 23 05/01/23 04/23 3131-50-6170 UTILITIES 5,084.69 Agenda Item #G2 City of lone Unpaid Invoice Report - UNPAID INV. REPORT Page: 2 Posting period: 04/23 May 10, 2023 10:35AM
Invoice Seq.# Description Invoice GL Peri GL Account Activity# GL Account Description Net Invoice Number Date Number Check Amount
Total 23205: 10,169.38
JACKSON TIRE SERVICE INC
32025240 E6235-1-GS 209811 04/25/23 04/23 1111-75-6202 MAINT & OPERATIONS - VEHICLES 4,524.36 Total 32025240: 4,524.36
MISSION IT SOLUTIONS INC.
INV-1378 61- EMAILS & HOSTING & KIOSK 05/01/23 04/23 1111-94-6166 SOFTWARE PROGRAMS 327.50 Total INV-1378: 327.50
PG&E
32023240 2292622148-6-FIRE STATION #2 04/23/23 04/23 1111-75-6170 UTILITIES 803.73 32023240 7283130664-1-PARK & RIDE MAIN 04/23/23 04/23 2111-50-6170 UTILITIES 35.95 1493085298-4-CITY YARD 04/23/23 04/23 1111-92-6170 UTILITIES 13.69 Total 32023240: 853.37
Total: 18,776.82
Grand Totals: 18,776.82
Summary by General Ledger Account Number
GL Account Number Credit Net
1111-70-6240 210.00 .00 210.00
1111-75-6119 175.98 175.98
1111-75-6170 803.73 803.73
1111-75-6202 4,524.36 .00 4.524.36
1111-92-6170 13.69 13.69
1111-94-6111 235.59 235.59
1111-94-6166 780.75 780.75
1111-94-6220 101.30 101.30
2111-50-6111 65.37 65.37
City of lone Unpaid Invoice Report - UNPAID INV. REPORT Page: 3 Posting period: 04/23 May 10, 2023 10:35AM
Summary by General Ledger Account Number
GL Account Number Debit Credit Net
2111-50-6166 453.25 453.25
2111-50-6170 35.95 35.95
3111-50-6111 235.59 235.59
3111-50-6166 453.25 453.25
3111-50-6170 5,084.69 5,084.69
3111-50-6220 65.38 65.38
3131-50-6166 453.25 453.25
3131-50-6170 5,084.69 5,084.69
Grand Totals: 18,776.82 18,77682
Summary by General Ledger Poling Period
GL Posting Period Debit Credit Net
04/23 18,776.82 18,776.82
Grand Totals:
18,776.82 18,776.82
City of lone Payment Approval Report - COUNCIL APPROVAL Page: 1 Report dates: 5/1/2023-5/31/2023 May 10, 2023 10:39AM
Report Criteria:
Invoices with totals above $0.00 included.
Only unpaid invoices included.
Vendor Vendor Name Invoice Number Description Invoice Date Net Amount Paid Date Paid Voided Invoice Amount
GENERAL FUND
POLICE (GENERAL FUND)
1111-70-6240
CALIFORNIA POLICE CHIEFS ASSN
810 CALIFORNIA POLICE CHIEFS A 1605 MEMBERSHIP DUES FY 23-24 A 05/01/2023 210.00 100 Total 1111-70-6240: 210.00 .00
Total POLICE (GENERAL FUND): 210.00 100
FIRE (GENERAL FUND)
1111-75-6119
IONE PHARMACY
2040 IONE PHARMACY 317670 FD - LOR PULSE OXIMETER PO 05/03/2023 27.47 .00 2040 IONE PHARMACY 32020340 PHILIPS, HEART PADS X1 04/30/2023 175.98 .00 Total 1111-75-6119: 203.45 .00
1111-75-6170
PG & E
2930 PG & E 32023240 2292622148-6-FIRE STATION #2 04/23/2023 803.73 .00 Total 1111-75-6170: 803.73 .00
1111-75-6202
JACKSON TIRE SERVICE INC
2105 JACKSON TIRE SERVICE INC 32025240 E6235-1-GS 209811 04/25/2023 4,524.36 ,00 Total 1111-75-6202: 4,524.36 .00
Total FIRE (GENERAL FUND): 5,531.54 .00
PARKS & FACILITIES MAINTENANCE
1111-92-6170
PG& E
2930 PG&E 32023240 1493085298-4-CITY YARD 04/23/2023 13.69 Total 1111-92-6170; 13.69 .00
Total PARKS & FACILITIES MAINTENANCE: 13.69 .00
CITYWIDE SERVICES
1111-94-6111
CARBON COPY INC.
875 CARBON COPY INC. 618940 TONER FOR COPIER 05/01/2023 235.59 .00 Total 1111-94-6111: 235.59 100
1111-91-6166
CASELLE INC.
905 CASELLE INC. 124792 CONTRACT SUPPORT/MAINT- 05/01/2023 453.25 .00 MISSION IT SOLUTIONS INC.
2635 MISSION IT SOLUTIONS INC. INV-1378 61-EMAILS & HOSTING & KIOS 05/01/2023 327.50 .00 City of lone Payment Approval Report - COUNCIL APPROVAL Page: 2 Report dates: 5/1/2023-5/31/2023 May 10, 2023 10:39AM
Vendor Vendor Name Involce Number Description invoice Date Net Amount Paid Date Paid Voided Invoice Amount
Total 1111-94-6166: 780.75 .00
1111-94-6220
CARBON COPY INC.
875 CARBON COPY INC. 618713 COPY EXPENSE - APRIL 2023 04/26/2023 65.38 .00 875 CARBON COPY INC 618714 COPY EXPENSE FD - APRIL 23 04/26/2023 35.92 .00 Total 1111-94-6220: 101.30 .00
Total CITYWIDE SERVICES: 1,117.64 .00
Total GENERAL FUND: 6,872.87 .00
City of lone Payment Approval Report - COUNCIL APPROVAL Page: 3 Report dates: 5/1/2023-5/31/2023 May 10, 2023 10:39AM
Vendor Vendor Name Invoice Number Description Invoice Date Net Amount Paid Date Paid Voided Invoice Amount
GAS TAX FUND
GAS TAX EXPENDITURES
2111-50-6111
CARBON COPY INC.
875 CARBON COPY INC. 618713 COPY EXPENSE - APRIL 23 04/26/2023 65.37 Total 2111-50-6111: 65.37 .00
2111-50-6166
CASELLE INC.
905 CASELLE INC. 124792 CONTRACT SUPPORT/MAINT - 05/01/2023 453.25 Total 2111-50-6166: 453.25 .00
2111-50-6170
PG & E
2930 PG & E 32023240 7283130664-1-PARK & RIDE MAI 04/23/2023 35.95 .00 Total 2111-50-6170: 35.95 .00
Total GAS TAX EXPENDITURES: 554.57 .00
Total GAS TAX FUND: 554.57 .00
City of lone Payment Approval Report - COUNCIL APPROVAL Page: 4 Report dates: 5/1/2023-5/31/2023 May 10, 2023 10:39AM
Vendor Vendor Name Invoice Number Description Invoice Date Net Amount Paid Date Paid Voided Invoice Amount
WWTP-OPER & MAINT.
WWTP EXPENDITURES
3111-50-6111
CARBON COPY INC.
875 CARBON COPY INC. 618940 TONER FOR COPIER 05/01/2023 235.59 Total 3111-50-6111: 235.59 .00
3111-50-6166
CASELLE INC.
905 CASELLE INC. 124792 CONTRACT SUPPORT/MAINT- 05/01/2023 453.25 .00 Total 3111-50-6166: 453.25
3111-50-6170
IW SOLAR LLO
2071 IW SOLAR LLC 23205 SOLAR PRODUCED-WWTP APR 05/01/2023 5,084.69 .00 Total 3111-50-6170: 5,084.69
3111-50-6220
CARBON COPY INC
875 CARBON COPY INC. 618713 COPY EXPENSE - APRIL 23 04/26/2023 65.38 .00 Total 3111-50-6220: 65.38 .00
Total WWTP EXPENDITURES: 5,838.91 .00
Total WWTP-OPER & MAINT.: 5,838.91 .00
City of lone Payment Approval Report - COUNCIL APPROVAL Page: 5 Report dates: 5/1/2023-5/31/2023 May 10, 2023 10:39AM
Vendor Vendor Name Invoice Number Description Invoice Date Net Amount Paid Date Paid Volded Invoice Amount
TERTIARY PLANT FUND
TERTIARY PLANT EXPENDITURES
3131-50-6166
CASELLE INC.
905 CASELLE INC. 124792 CONTRACT SUPPORT/MAINT - 05/01/2023 453.25 100 Total 3131-50-6166: 453.25 .00
3131-50-6170
IW SOLAR LLC
2071 IW SOLAR LLC 23205 SOLAR PRODUCED-WWTP APR 05/01/2023 5,084.69 .00 Total 3131-50-6170: 5,084.69 .00
Total TERTIARY PLANT EXPENDITURES: 5,537.94 …00
Total TERTIARY PLANT FUND: 5,537.94 .00
Grand Totais: 18,804.29 .00
Dated:
Mayor:
City Council:
City Recorder:
Report Criteria:
Invoices with totals above $0.00 included.
Only unpaid invoices included.
CITY OF IONE
IONE, CA 95640
CALIFORNIE
Agenda Item #I1
DATE: MAY 16, 2023
TO: THE HONORABLE MAYOR AND MEMBERS OF THE CITY COUNCIL FROM: JOCELYN LIMAS, CITY SURVEYOR
JEFFREY SETTERLUND, CITY PLANNER
SUBJECT: TRAIN DEPOT MUSEUM AND PARK PROPERTY SPLIT, 315 SOUTH MILL STREET, APN 004-220-34
RECOMMENDED ACTION:
Adopt Resolution 2022-23-* of the City Council of the City of lone declaring a portion of the property at 315 S. Mill Street as surplus property and authorize the Interim City Manager to execute transfer documents.
FISCAL IMPACT:
There is no fiscal impact currently associated with this item.
BACKGROUND:
On May 12, 2020, the Planning Commission held a public hearing and approved a Site Plan Review Permit for the renovation of the train depot and construction of a park at 315 S. Mill Street. However, an appeal to the Planning Commission decision was subsequently filed to the City Council to review a restroom facility that was not ready at the time of the overall project review and approval. On July 20, 2021, the City Council reversed the Planning Commission decision and referred the restroom facility back to the Planning Commission for consideration of alternatives. On January 11, 2022, the Planning Commission approved the site plan review permit for the Train Depot Museum and Park Restroom Facility, Option C - Mirrored Layout.
The comprehensive project includes site improvements as well as both exterior and interior renovations to a historic depot which has previously been moved to the site. The depot will be converted to a museum space, to be owned and operated by the Amador Central Railroad Corporation, and a park is already under construction and includes a playground structure for children, a covered picnic area and a restroom facility.
OF
TONE
CITY OF ONE
IONE, CA 95640
FOR
Pursuant to the State Surplus Land Act, the City of lone is negotiating in good faith with Amador Central Railroad Corporation regarding the disposition and development of the depot property, including rehabilitation of the historic depot building. Prior to disposing of the property, the City Council must declare them to be surplus land under State law. State law defines surplus land as land that is not necessary for the City's use. Pursuant to State law (Government Code Section 65402), staff is reporting to the City Council regarding the consistency with the General Plan of the proposed disposition of the property, following declarations of surplus land, for the purposes of development and historic resource rehabilitation. Staff has provided an analysis in this report to support making a recommendation to the City Council that this property should be declared surplus land for the purpose of disposing of the property for development and rehabilitation of a historic resource is consistent with the General Plan.
ANALYSIS:
General Plan Consistency Analysis
The subject property proposed to be declared surplus land under the State Surplus Land Act to allow a private developer to acquire the property from the City for the purposes of development with a land use allowed by the Zoning Code that would make possible the rehabilitation of the historic depot building. The property is classified as Low Density Residential (RL) which allows for pocket and neighborhood parks, and public facilities like schools, religious assembly, etc.
While museums are not specifically mentioned, they are not excluded.
The development of the site and rehabilitation of the historic depot building is consistent with the following General Plan policies:
• The Conservation and Open Space element stresses the importance of recreational opportunities being provided throughout the City. It points out that small parks provide play areas and gathering spaces for neighborhoods.
• The Conservation and Open Space Element also attempts to: Establish additional open space for outdoor recreation and enhance existing parks and trails to provide a premier park system with a variety of facilities, landscaping types, natural resource areas and recreational uses dispersed throughout the community.
• Action CO-8.1.2: Encourage the development of parks adjacent to school sites and other quasi-public and public facilities.
• The Public Facilities Element promotes efficiency, agency collaboration, and community design in the provision, location, and operation of public facilities and services. • Policy PF-2.3: Public facilities and services shall be equitably distributed throughout the community to enhance the quality of life.
Zoning Consistency analysis
The subject property is zoned R-1b One Family (6.7 du/ac max). R-1b zone allows for Parks and Public Plazas with plan check. Furthermore, Site Plan review by the Planning Commission and approval of a Site Plan Review are required for public/quasi-public developments pursuant to Ione Municipal Code Section 17.10.090 - Site Plan Review. As noted in the above background discussion, the Planning Commission and approved a Site Plan Review Permit for the renovation of the train depot and construction of a park at 315 S. Mill Street on January 11, 2022.
OF
CITY OF IONE
IONE, CA 95640
State Surplus Land Act
Under the Surplus Land Act, Government Code Sections 54220-54234 ("Act"), surplus land is land owned in fee simple by the City for which the City Council takes formal action in a regular public meeting declaring the land is surplus and not necessary for the City's use. The Act provides that land shall be declared either surplus land or exempt surplus land before the City may take action to dispose of it consistent with the City's policies or procedures. Under the Act, land is necessary for the City's use if the land is being used or is planned to be used pursuant to a written plan adopted by the City Council, for City work or operations. The Act specifies that the City's use does not include commercial or industrial uses, and land that is disposed of for the sole purpose of investment or generation of revenue is not necessary for the City's use. Pursuant to Government Code Section 65402(a), if applicable, no real property shall be disposed of until the location, purpose and extent of such disposition has been submitted to and reported upon by the planning agency as to conformity with the adopted general plan. It shall be noted that all dispositions of surplus land must be approved by the Department of Housing and Community Development before the sale or lease can be finalized.
Environmental Determination
The state CEQA Guidelines section 15004(b) states, "Choosing the precise time for CEQA compliance involves a balancing of competing factors. EIRs and negative declarations should be prepared as early as feasible in the planning process to enable environmental considerations to influence project program and design and yet late enough to provide meaningful information for environmental assessments." CEQA Guidelines section 15312 indicates that sales of surplus government property, except for parcels of land located in an area of statewide, regional, or areawide concern identified in Section 15206(b)(4), are categorically exempt from CEQA for surplus land that does not have significant values for wildlife habitat or other environmental purposes; The property is of such size, shape, or inaccessibility that it is incapable of independent development or use; The property to be sold would qualify for an exemption under any other class of categorical exemption in these Guidelines; or the use of the property and adjacent property has not changed since the time of purchase by the public agency. CEQA Guidelines sections 15060(c)(2) and (3) also indicate that an activity is not subject to CEQA if the activity will not result in a direct or reasonably foreseeable indirect physical change in the environment; or the activity is not a project as defined in CEQA Guidelines Section 15378. A project is defined as, "the whole of an action, which has a potential for resulting in either a direct physical change in the environment, or a reasonably foreseeable indirect physical change in the environment..." The recommended action in this report is a required step that will allow for the potential future disposition and development of the subject properties. However, at this time, the City has not committed to a particular project nor does this action bind the City to pursue any project. As such, it does not have the potential to result in a direct physical change in the environment or a reasonably foreseeable indirect physical change in the environment. Further, if a particular project is selected for development on the subject properties in the future, environmental review pursuant to CEQA will be conducted at an appropriate time when the program and design of the project are known and an application for a land use entitlement is requested by a developer.
Subdivision Map Act Consistency
OF TONT
CITY OF IONE
IONE, CA 95640
Per Section 66428(a)(2) of the Subdivision Map Act, "A parcel map shall not be required for (...) Land conveyed to or from a governmental agency, public entity, public utility (...) For purposes of this subdivision, land conveyed to or from a governmental agency shall include fee interest, a leasehold interest, an easement, or a license". Therefore, staff finds that this action of transferring ownership of a portion of a larger parcel does not trigger a tentative map nor parcel map.
DISCUSSION:
Staff recommends that the City Council adopt Resolution No. 2023-_ Resolution of the City Council of the City of lone finding that the proposed action is not subject to the California Environmental Quality Act (CEQA) pursuant to State CEQA Guidelines Sections 15060 (c)(2), 15060 (c)(3), and 15378, as the activity will not result in a direct of reasonably foreseeable indirect physical change in the environment and is not a "project", Find that the proposed disposition of a portion of the property at 315 S. Mill Street, following declarations that such properties are surplus property, is consistent with the General Plan, declare the property at 315 S.
Mill street as surplus property, and authorize the City Manager to execute transfer documents.
MOTION: The City Council adopts the resolution to approve the designation of the subject property as Surplus Property, and authorizing the City Manager to execute transfer documents.
ATTACHMENTS:
Exhibit A - Resolution No. PC 2023-
Exhibit B - Legal description and map exhibit of subject property
A RESOLUTION OF THE CITY COUNCIL OF THE CITY OF IONE DECLARING A PORTION OF THE PROPERTY AT 315 S. MILL STREET AS SURPLUS PROPERTY
AND AUTHORIZE CITY MANAGER TO EXECUTE TRANSFER DOCUMENTS WHEREAS, the City of lone City Council at a regular meeting on May 16, 2023, received pubic testimony and considered a request by City Staff to declare a portion of the property at 315 South Mill Street as surplus property. The subject property is approximately
0.374 acres.
WHEREAS, the City of Ione City Council determined that the proposed disposition as surplus property is consistent and compatible with the General Plan; and WHEREAS, the City of Ione City Council determined the proposed disposition will not be detrimental to public health, safety, and welfare or be materially injurious to properties or improvements in the vicinity; and
WHEREAS, the City of Ione City Council determined that the proposed disposition is consistent with the State Surplus Land Act; and
WHEREAS, the City of lone City Council determined that the proposed request is not subject to the California Environmental Quality Act (CEQA) pursuant to State CEQA Guidelines Sections 15060 (c)(2), 15060 (c)(3), and 15378, as the activity will not result in a direct of reasonably foreseeable indirect physical change in the environment and is not a "project" NOW, THEREFORE, BE IT RESOLVED by the City of lone City Council that this finding of surplus property is hereby approved, and authorizes the City Manager to execute any documents required to transfer the subject property to Amador Central Railroad Corporation.
PASSED, APPROVED, AND ADOPTED this sixteenth day of May, 2023 but the following recorded vote:
AYES:
NOES:
ABSENT:
ABSTAIN:
AYES:
NOES:
ABSENT:
ABSTAIN:
Stacy Rhoades, Mayor
ATTEST:
Janice Traverso, City Clerk
MARLETTE STREET
PARCEL A
EXIST. CONC. PAD
AND SHADE
STRUCTURE
EXIST. CONC. FORMS
FOR FUTURE RESTROOMS N14'53'40"W [260.51'] MILL STREET
PARCEL B
[N15'05'51"W 259.82'] N67'26'46"E 200.79'
• EXIST. SIDEWALK
95.58'
PARCEL C
APPROXIMATE BUILDING
68.13' FOOTPRINT
[N75'18'20"E 198.76']
LEGEND
PARCEL 1 ANGLE POINT
POINT OF - RECORDED IN BOOK OF MAD PLA
BEGINNING © 94, AMADOR COUNTY RECORI
HATCHING INDICATES DEDICATION AREA
EXISTING RIGHT OF WAY
PLOT DATE: EXHIBIT 'B'
11/2/2022
DEDICATION AREA
SCALE:
1"=50 PLAT TO ACCOMPANY
SHEET NO: 1 OF 1 DESCRIPTION
SAY OF TONA
CITY OF IONE
IONE, CA 95640
CALIFORAIE
Agenda Item #I2
DATE: MAY 16, 2023
TO: THE HONORABLE MAYOR AND MEMBERS OF THE CITY COUNCIL FROM: AMY GEDNEY, INTERIM CITY MANAGER
SUBJECT: WASTEWATER OPERATIONS UPDATE
RECOMMENDED ACTION:
For information and staff direction.
FISCAL IMPACT:
To be determined.
BACKGROUND:
There are a number of complex issues that the City has been grappling with regarding the wastewater treatment plant. Among these are, a Cease and Desist Order, CDO, from many years ago, its current discharge permit, current treatment and disposal capacity, the regional water balance, as well as the current lawsuit between the Amador Regional Sanitation Agency and Mule Creek Prison, and most recently, the tertiary plant's Title 22 permit.
The attached Memorandum from West Yost details the issues and their inter-relatedness.
ATTACHMENTS:
Memorandum from West-Yost
2020 Research Park Drive 530.756.5905 phone
Suite 100 530.756.5991 fax
W WEST YOST
Davis CA 95618 westyost.com
Water. Engineered.
TECHNICAL MEMORANDUM
DATE: May 12, 2023 Project No.: 988-50-22-03
SENT VIA: EMAIL
TO: Amy Gendry, Interim City Manager PROFESSIONA
City of lone ERFD ELIZABE
KATHRYN
FROM: Kathryn Gies, PE, RCE #65022 Rr,
No. C65022
* Exp. 6-30-73 *
REVIEWED BY: Jeff Pelz, PE, RCE #46088 CIVI
SAE&
CAL
SUBJECT: Assessment of Wastewater Treatment Plant
The purpose of this Technical Memorandum (TM) is to provide the City of lone with an update and overview of efforts that have been completed by West Yost related to our assessment of the City of lone Wastewater Treatment Plant (WWTP) and Castle Oaks Recycled Water Facility (COWRF). The topics addressed are as follows.
• Facilities Overview
• Current Wastewater Flows
• Discharge Permit Overview
• Key Topics Related to the WWTP
• Key Topics Related to the COWRF
FACILITIES OVERVIEW
This section provides an overview of the existing facilities to provide context, as needed, to support the information included in this TM. The City's owns and operates both the WWTP and the COWRF. Figure 1 provides a layout of these two facilities. These facilities are operated under contract by Perc Water Corporation. The WWTP is located south of the City, near the intersection of Marlette Road and Dave Brubeck Road. The COWRF is located approximately 600 feet to the northwest of the City's WWTP, across Sutter Creek.
The WWTP treats wastewater generated from the City in four treatment ponds (Ponds 1 through 4). These ponds provide secondary wastewater treatment through aeration and settling. Pond 5 is used for storage and distribution of treated effluent. Ponds 6 and 7 are used for disposal through percolation and evaporation during periods when the effluent cannot be used for irrigation purposes. Figure 2 provides a layout of the City's pond system.
to Golf Course Control Valve
actle Oake
Golf Course
COWRF Pump Station
City WWTP Headworks
Secondary Effluent Pump Station
WWTP Boundary
COWRF Boundary
COWRF Influent
COWRF Effluent to Golf Course
Filter Backwash, Off-Spec Recycled Water
and Stormwater from COWRF
Secondary Effluent from ARSA
City
WWTP/ Irrigation Pipeline
Field
Wheel Line Irrigation Header
Tailwater Ditch
Irrigation Area Boundary
to Woodard Bottom Site
to Woodard Bottom Site
Town Field
Prepared by: Prepared for:
City of lone Site Map
WEST F YOST WDR Assistance Figure 1
NEST YOST - W:(Clients|988 City of lone)50-22-03 WDR Assistance\GIS\MXD\Fig2_8x11.mxd - aguillebeau - 5/10/2023 Pond System Control Structure
Manholes
Headworks
Treatment
Pond 4 Secondary Effluent Pump Static
Secondary Effluent from ARSA
Treatment Filter Backwash, Off-Spec
Pond 3 Recycled Water and
Stormwater from COWRF
Irrigation Pipeline
Treatment
Pond 1 Irrigation Area Boundary
Treatment
Pond 2 Storage
and
Distribution
Pond 5
Percolation
Pond 6
City
WWTP
Field
Town Field
Percolation
Pond 7
Prepared by: Prepared for:
W Pond Layout
City of lone
Feet
WEST YOST WDRs Assistance Figure 2
TM - City of lone
May 12, 2023
During the summer irrigation season, treated effluent is distributed via the secondary effluent pump station to two land application areas: the Town Field and WWTP Field. Both these areas are used to grow fodder crops (i.e., crops not intended for human consumption). The WWTP Field is a 5.6 acres area located within the WWTP site. The Town Field is a 57-acre irrigation site owned by Green Rock Ranch LLC and is located directly east of the WWTP. Tailwater is also collected from both of the irrigation fields during the winter months and returned to the WWTP via the collection system.
The COWRF treats secondary effluent produced by the Amador Regional Sanitation Agency (ARSA) and Mule Creek State Prison (MCSP) to Title 22 disinfected tertiary recycled water standards before it is used for irrigation at the Castle Oaks Golf Course. The COWRF provides all the water for the golf course during the dry season and does not operate during the winter. The COWRF has a permitted capacity of 1.2 mgd, which is roughly equal to the peak seasonal irrigation demand of the Castle Oaks Golf Course. Figure 3 provides a layout of the COWRF. As shown, major components of the facility include:
• Influent Screening
• Mechanical Flocculation
• Sand Filtration
• Chlorine Contact Basins
• Effluent Pump Station
Backwash Solids Drying and Storage
The City's WWTP and the COWRF are hydraulically connected. Backwash and drain water from the COWRF enters the City collection system immediately upstream of the headworks to the City WWTP. The City WWTP treats and disposes of this backwash water along with other sources of influent flow. In addition, secondary effluent entering the COWRF can be diverted from to the WWTP percolation ponds when this flow exceeds the irrigation demand of the golf course. Finally, effluent from the COWRF facility can also be directed to the percolation ponds via the same diversion pipeline in the event the wastewater does not meet Title 22 disinfected tertiary recycled water standards. These conveyance facilities are shown on Figure 1
WEST YOST
WEST YOST - :\Clients\988 City of Ione\S0-22-03 WDR Assistance\GIS\MXD\Fig3.mxd - aquillebeau - S/10/2023 Control Valve
to Golf Course
Pump Station
- to Golf Course
COWRF Influent
Castle Oaks Golf Course
Discharge to WWTP
Discharge to WWTP Pond
Clarifier
COWRF Boundary
Chlorine Contact Basins
Effluent Pump Station
Sand Filtration
Backwash Solids
Drying and Storage
Influent Screening
and Mechanical
Flocculation
Prepared by: Prepared for:
W COWRF Facilities
City of lone
Feet
WEST YOST 200 WDRs Assistance Figure 3
TM - City of lone
May 12, 2023
CURRENT WASTEATER FLOWS
This section provides a summary of the flows entering the WWTP and COWRF.
WWTP Flows
The WWTP receives flow from five sources:
• Wastewater generated within the City,
• Backwash flows from the COWRF facility (the represents about 10 to 15 percent of the flow received at the COWRF),
• Backwash from the Amador Water Agency (AWA) water treatment facilities, Runoff collected from the Town Field and WWTP Field irrigation areas, and • Infiltration and Inflow (1&l) that enters the City's collection system.
A summary of the monthly average flows received at the WWTP between 2018 and 2022 are shown in Table 1. As shown, the flows vary significantly from month to month. The highest flows often occur in the winter rainfall periods, but summertime flows have also been higher in some years (2020 and 2021).
Table 1. Monthly Influent Flows to WWTP, MGD
Year
Month 2018 2019 2020 2021 2022
January 0.406 0.480 0.399 0.412 0.451
February 0.353 0.805 0.361 0.434 0.396
March 0.609 0.790 0.460 0.351 0.395
April 0.471 0.495 0.473 0.395 0.546
May 0.438 0.546 0.538 0.395 0.485
June 0.404 0.470 0.562 0.462 0.457
July 0.333 0.355 0.563 0.520 0.454
August 0.247 0.447 0.554 0.505 0.474
September 0.375 0.517 0.536 0.465 0.409
October 0.395 0.486 0.502 0.490 0.390
November 0.386 0.530 0.431 0.343 0.433
December 0.344 0.430 0.346 0.555 0.510
Annual Average 0.397 0.529 0.477 0.444 0.450
Average Dry Weather Flow 0.319 0.440 0.551 0.497 0.445
COWRF Backwash Dry Weather Flow 0.128 0.128 0.129 0.113 0.125 AWA Backwash Dry Weather Flow 0.007 0.007 0.007 0.007 0.007 Estimated City Base Flow 0.184 0.305 0.415 0.377 0.313
MGD = millions of gallons per day
WEST YOST
TM - City of lone
May 12, 2023
Because the amount of runoff from the land application areas and I&l entering the collection system can vary significantly from year to year due to varying rainfall patterns, these sources of flow should be excluded when defining the base wastewater flow associated with the City. Accordantly, Table 1 also shows the Average Dry Weather Flow (ADWF), which is defined as the average of the daily flow in the months of July, August and September. To determine the "base flow" for the City, the COWRF backwash and the AWA backwash must also be accounted for. Therefore, the average daily flow associated with the COWRF backwash and the AWA backwash during the dry weather period are also shown in Table 1 and subtracted from the WWTP ADWF value to define the "base flow" for the City.
A few key observations can be made from the data provided in Table 1:
The base flows increased significantly between 2018 and 2022. However, there was an unusually low base flow in August 2018 that is likely skewing this comparison and it is possible that this data is not representative.
• The base flows were greatest in 2020 and 2021. Many communities experienced higher base flows during these years due to COVID restrictions. It is not recommended that the City rely on the flows measured during this period to establish the baseline flow conditions for the City. • Runoff and 1&l contribute significant flow to the WWTP and can almost double the total monthly flows entering the facility.
• During the dry weather periods, backwash from the COWRF contributes about 25 percent of the total flow entering the WWTP.
• The AWA backwash contributes very little flow.
COWRF Flows
A summary of the total monthly flows received at the COWRF between 2018 and 2022 and the total monthly flow sent to the Castle Oaks Golf Course are provided in Table 2.
WEST YOST
TM - City of lone
May 12, 2023
Table 2. Monthly Influent and Recycled Water Flows at COWRF, MG Year
Month 2018 2019 2020 2021 2022
Flows to COWRF
April 0.0 0.0 0.0 14.7 12.7
May 21.6 17.1 16.8 29.1 14.0
June 30.1 23.7 14.8 24.8 13.1
July 32.6 31.2 30.2 35.7 23.1
August 36.9 32.4 30.1 27.0 23.2
September 27.7 20.1 20.2 11.6 18.3
October 10.3 16.7 17.9 10.5 10.9
November 3.6 13.9 7.8 0.0 11.3
Annual Total, MG 162.8 154.9 137.7 153.4 126.6
Annual Total, Acre-Feet 500 475 423 471 389
Flows to Castle Oaks Golf Course
April 0.0 0.0 0.0 12.7 7.9
May 19.1 15.1 14.1 25.2 12.1
June 26.5 21.1 11.1 21.4 10.8
July 29.0 27.2 30.2 31.7 20.4
August 33.0 25.6 25.8 23.3 21.0
September 24.1 24.1 16.2 9.0 16.2
October 8.4 16.7 14.5 8.2 9.1
November 3.2 8.8 6.1 0.0 9.1
Annual Total, MG 143.3 138.6 117.9 131.5 106.6
Annual Total, Acre-Feet 440 425 362 404 327
MG = millions of gallons
WEST YOST
TM - City of lone
May 12, 2023
DISCAHRGE PERMIT OVERVIEW
This section provides an overview of the two permits that govern the operations of the WWTP and COWRF. As noted, both permits are old and outdated.
WWTP Permit
The City WWTP currently operates under Waste Discharge Requirements (WDR) Order No. R5-2013-0022-001. This permit was adopted by the Central Valley Regional Water Quality Control Board (Regional Board) on December 5, 2014 and was amended from the WDRs Order No. R5-2013-0022, which was adopted April 11, 2013.
The existing WDRs are based on conditions of and plans for the WWTP that occurred over 10 years ago.
Most notably, the WDRs reflect proposed modifications to the WWTP that involve construction of a new irrigation pond and two new irrigation areas. These projects never took place and are not currently planned. The WDRs also do not reflect several key changes that have been made to the facility since 2014.
Specifically, they do not reflect the lining of Ponds 1 through 5. Finally, as discussed further later in this TM, the WDRs currently limit the discharge flow from the WWTP to levels that do not reflect the current capacity of the facilities.
COWRF Permit
The COWRF operates under Water Reclamation Requirements (WRRs) Order No. 93-240, which regulates the ARSA Outfall and the COWRF. The WRRs were issued jointly to the City, ARSA, the Castle Oaks Golf Course and Development and Portlock International LTD by the Regional Board on December 3, 1993.
Accordingly, these WDRs are almost 30 years old. They also do not reflect several key changes that have been made to the facility since 1993. Most notably, they do not reflect that the COWRF also receives flow directly from CDCR, and they name Portlock International LTD as the entity that manages irrigation of golf course, which is no longer the case.
The Regional Board and Division of Drinking Water (DDW) have also significantly modified the ways and means by which they permit water recycling facilities since 1993. Therefore, the COWRF WRRs do not reflect the state's latest approach to permitting. This issue was partially, although not completely, remedied in 2021 when the Regional Board adopted a new Monitoring and Reporting Program (MRP) for the COWRF that superseded the MRP included in the 1993 WWRs. Due to the age of the current permit, the Regional Board is eager to get a new permit adopted for the COWRF.
WEST YOST
TM - City of lone
May 12, 2023
KEY TOPICS RELATED TO THE WWTP
This section addresses two key topics related to the WWTP, as follows:
Cease and Desist Order
Current Capacity
Following a discussion of these topics, a summary of findings and recommendations is presented.
Cease and Desist Order
The section addresses the requirements and current status of the Cease-and-Desist Order (CDO) R5-014-0157, which was adopted by the Regional Board on December 5, 2014 in parallel with the WDRs.
A Cease and Desist is an enforcement action taken by the Regional Board when it finds that a waste discharge is taking place, or threatening to take place, in violation of discharges requirements or prohibitions prescribed by the Regional Board.
Overview
Elevated iron (Fe) and manganese (Mn) concentrations have been historically observed in downgradient monitoring wells MW-2, MW-2A, MW-3, and MW-3A. Elevated concentrations in downgradient wells compared to the upgradient wells MW-1 and MW-1A was interpreted as degradation of groundwater in the CDO, which states:
"Although iron and manganese are not present in the Facility's effluent at high concentrations, the presence of degradable organic matter in the wastewater depletes oxygen, which creates reducing conditions in the groundwater mound beneath the WWTF's ponds. Reducing conditions promote dissolution of iron and manganese."
The CDO also raises concerns regarding seepage of pollutants into Sutter Creek from the WWTP, as follows:
"... at times of very low flow, or no flow, there is the potential for groundwater to flow from the area underlying the wastewater treatment facility into the creek [Sutter Creek]. It is likely that this seepage contains constituents which are present as a consequence of the treatment and discharge of waste in unlined ponds. The indirect discharge (seepage) of polluted groundwater is in violation of Prohibition A.1 of ...the 2013 WDRs."
The CDO then specifically requires a series of actions to be completed by the City to address the two issues identified above. These actions can generally be classified as follows:
• Construct facility improvements that will effectively stop the mechanisms that result in the mobilization and discharge of iron and manganese in violation of the Groundwater Limitations of the 2013 WDRs;
• Effectively stop any indirect discharge (seepage) of polluted groundwater to Sutter Creek; and
• Bring the facility into compliance with the 2013 WDRs.
WEST YOST
TM - City of lone
May 12, 2023
Iron and Manganese Mobilization in Groundwater
Dissolved manganese(II), and ironII) concentrations can be lowered when they are oxidized to less soluble manganese(III/IV) and iron(III) phases and precipitate as solid minerals. Thus, the introduction of oxygen to a reduced system with elevated dissolved manganese and iron concentrations can lead to reduction of concentrations in the measured levels in groundwater. However, responses of manganese and iron to the introduction of oxygen do not occur at the same pace, where iron concentrations may decrease rapidly while manganese concentrations may be sustained even in the presence of dissolved oxygen.
Steps taken to comply with CDO R5-2014-0157 have included lining Ponds 1 through 5, which was completed in 2019. This project decreased both hydraulic and organic loading supplied to groundwater.
As such, the project helped to minimize reducing conditions that are caused by saturated soils and high organic matter and allowed for more oxygen to enter the system. After lining Ponds 1 through 5, dissolved iron concentrations in all four downgradient monitoring wells decreased and are now below 0.3 mg/L, in compliance with the CDO. However, manganese concentrations have not met decreasing concentration targets set in the CDO.
The CDO establishes estimated concentration changes for manganese that were determined, in part, based on information presented in a report previously developed on behalf of the City called the 2013 Expected Concentration Change Report (Hydrofocus, 2013). West Yost team has reviewed the CDO, and the 2013 Expected Concentration Change Report (Hydrofocus, 2013) and we do not agree with the findings presented in these documents. Specifically, dissolved manganese concentrations in downgradient monitoring wells would be expected to persist because of one or more factors, including:
• The conditions in the aera of MW-2, MW-2A, MW-3, and MW-3A would allow for dissolved manganese to be elevated by naturally occurring conditions caused by naturally occurring manganese minerals, the organic soils found in the floodplain of Sutter Creek, and the naturally high groundwater levels.
• Dissolved manganese may be stable in groundwater for years even in the presence of dissolved oxygen. This is because homogeneous (reactions occurring only in one phase, e.g., in water) oxidation of dissolved manganese may occur over years compared to dissolved iron oxidation which occurs in seconds to minutes under similar conditions. • The rate of manganese oxidation is pH-dependent. It is more rapid at higher pH and generally limited below pH 8. Manganese oxidation is expected to be slow at the pH of downgradient groundwater which ranges between approximately 6.5-7.5. • Dissolved iron can abiotically reduce solid manganese minerals which makes manganese dissolve and iron precipitate, simultaneously decreasing dissolved iron concentrations and increasing or sustaining dissolved manganese concentrations. 1 Diem, Dieter, and Werner Stumm. "Is dissolved Mn2+ being oxidized by O2 in absence of Mn-bacteria or surface catalysts?" Geochemical et Cosmochimica Acta 48.7 (1984): 1571-1573. 2 Schaefer, Michael V., Robert M. Handler, and Michelle M. Scherer. "Fe(lI) reduction of pyrolusite (B-MnO2) and secondary mineral evolution." Geochemical transactions 18 (2017): 1-11.
WEST YOST
TM - City of lone
May 12, 2023
• Groundwater flow gradients have changed since lining ponds 1 through 5 and groundwater flow beneath the WWTF has likely stagnated relative to past conditions that served as the basis of the previous analysis. The result is that the transport of dissolved manganese with flowing groundwater has slowed because there is no longer recharge from Ponds 1 through 5 that would create and sustain a flow gradient.
Ultimately the presence of dissolved iron and manganese are determined by a complex set of chemical and biological reactions. In the simplest form, the soil and groundwater near the WWTF were built up with organic carbon, which is the energy source for reducing conditions that cause dissolved iron and manganese, while Ponds 1-5 were unlined. To reverse this process and (re)establish oxidizing conditions, the soil and groundwater must be released. The sharp decreases in dissolved iron concentrations are evidence that this release is occurring but not yet complete. Once the release of the legacy organic matter from the historical WWTF discharges is complete, the soil and groundwater will establish a new equilibrium.
Based on this information, it does not appear that the groundwater limitations contained in the CDO for manganese are justifiable. Therefore, there is reasonable cause to request recission of the CDO and adoption of a new CDO that reflects the current conditions and knowledge of the facility and its potential to cause impacts to groundwater.
The current CDO does not provide any time to assess the effects and actual mechanisms at work following actions already taken by the City. Instead, it specifically requires that the City either collaboratively develop plans for a regionalized effluent conveyance and recycling or disposal system that will include permanent closure or lining of all wastewater ponds at the WWTF or proceed with planning and design of any improvements needed to comply with CDO and the WDRs, where "lining all wastewater ponds with a geosynthetic liner or equivalent containment structure designed to prevent movement of wastes from the ponds to waters of the state" is specifically identified as a required action.
As noted above, the City did move forward in 2019 with lining of Ponds 1 through 5 and it is understood that the intent with the approach of only lining Ponds 1 through 5 was to move forward in a stepwise strategy so that it could be determined whether lining of Ponds 6 and 7 would be a necessary to achieve compliance with the limitations. This approach was also supported by the following City practices:
1. Ponds 6 and 7 only receive treated effluent, and therefore do not contribute a significant organic loading to groundwater.
2. Ponds 6 and 7 are typically only used for wastewater disposal during the winter months.
Therefore, there is potential for oxygenation of the groundwater system during the summer periods when there is no direct recharge to groundwater.
Lining Ponds 1 through 5 has resulted in compliance with the iron limitations but has not yet resulted in compliance with the manganese limitations included in the CDO and there are clear reasons why this has not occurred. Therefore, with the establishment of new manganese water quality targets in a revised CDO, the City will also need to work with the Regional Board to establish a compliance schedule that provides the time needed to achieve manganese compliance and allows for stepwise implementation of best management practices.
WEST YOST
TM - City of lone
May 12, 2023
To this end, the City will need to take management steps to minimize the potential for solubilization of iron and manganese. This will involve managing Ponds 6 and 7 to prevent reducing conditions from occurring. These management strategies include:
• Minimizing discharges to Ponds 6 and 7 during the summer months to allow for drying between the wet discharge periods, and
• Prioritize discharge to Pond 7, which will help to minimize the potential for seepage to Sutter Creek.
Seepage to Sutter Creek
Regardless of whether impacts to groundwater quality can be mitigated, there is an outstanding issue related to the potential for seepage into Sutter Creek and whether this should be regulated under the Clean Water Act (CWA) as a discharge to "waters of the United States". Federal jurisdiction to regulate under the CWA is based on the regulatory definition of "waters of the United States" and has been the subject of numerous legal challenges. Since 2015, the regulatory definition of "waters of the United States" has changed four times — in 2015, 2019, 2020, and now again in 2023.
As noted above, past studies have documented seepage from Pond 6 into Sutter Creek. Based on our review of the available information and past reports, it appears flows discharged from Pond 6 to groundwater do preferentially flow towards the creek. Pond 7, however, is located farther from the Creek.
Moreover, the regional groundwater flow gradient indicates that flow from Pond 7 should preferentially move away from Sutter Creek to the southwest. This is corroborated by groundwater elevation measurements collected by the City.
The primary issue of concern for the lone WWTP's discharge to Pond 6 and 7 is what is known as the "significant nexus standard." This standard identifies waterbodies as "waters of the United States" if they significantly affect the chemical, physical, or biological integrity of water subject to the CWA. Since Sutter Creek is subject to the CWA, it potentially could be argued that the discharges to groundwater immediately adjacent to this waterbody meets the "significant nexus standard." However, the 2023 ruling also includes exemptions, some of which may apply to the City's WWTP.
Ultimately, the City will need to consult with legal counsel regarding the likely status of the City's scharge with respect to the CWA. Pending input from legal counsel, it may also be necessary to colle dditional data and/or complete additional modeline to assess whether discharges to Pond 6 and/or constituent a discharge to "waters of the United States". If these efforts result in a reasonable conclusion that discharges Pond 6 and/or 7 do not constituent a discharge to "waters of the United States", then the City will need to prepare the legal and technical documentation needed to support these conclusions for review and approval by the Regional Board.
WEST YOST
TM - City of lone
May 12, 2023
Recommendations
It is recommended that the City seek recission of the current CDO and adoption of a new CDO that:
1. Establishes new target limitations for manganese (limitations for iron are no longer needed) and new timelines for meeting these limitations based on scientifically justifiable information,
2. Allows the City to use information from a new monitoring well located outside the influence of the WWTP, but otherwise subject to the same Sutter Creek mixing zone conditions as MW-2, MW-2A, MW-3, and MW-3A to define the impact of naturally occurring conditions on groundwater manganese levels,
3. Provides the City with a time schedule that allows for assessment of whether seepage of groundwater constitutes a discharge to "waters of the United States," and
4. Provides the City with adequate time to plan, fund and construct the storage and land application facilities needed if it is concluded that discharges to groundwater from Ponds 6 and/or 7 must cease.
For this strategy to be successful, the City must continue to operate Ponds 6 and 7 using best management practices to minimize future iron and manganese solubilization and mobilization:
Minimize discharges to Ponds 6 and 7 during the summer months, When discharges to Ponds 6 and 7 are required, prioritize discharges to Pond 7 and only discharge to Pond 6 when necessary to minimize impacts to groundwater nearest to Sutter Creek,
When possible, allow Ponds 6 and 7 to dry out between effluent additions and reestablish aerated soil conditions,
Current Capacity
This section summarizes West Yost's assessment of the WWTP capacity. The topics addressed include a comparison of the permitted flow capacity to recent WWTP flows, followed by the findings from our treatment and disposal capacity analyses.
Comparison of Permitted Flow Capacity to Recent Flows
The WDRs currently limit the discharge capacity of the WWTP to 0.5 mgd, expressed as ADWF. The WDRs also allow for an increase in ADWF to 0.52 mgd pending the Regional Board Executive Officer approval of the 2020 Capacity Expansion Completion Report. Table 3 provides a summary of the WDR flow limitations compared to recent flows observed at the WWTP. As shown, the WWTP have exceeded the permitted flows in recent years.
WEST YOST
TM - City of lone
May 12, 2023
Table 3. Comparison of Permit Limitations to Effluent Flow Permit Limitations 2018 to 2022 Annual Values
Following
Approval of
Parameter Current 2020 Report Minimum Maximum
Average Dry Weather Flow, MGD
0.50 0.52 0.32 0.55
(July through August Average)
Maximum Month Effluent Flow, MGD 0.75 0.78 0.54 0.93
Total Annual Effluent Flow to Pondsla), MG 237 246 175 235 MGD = millions of gallons per day
MG = millions of gallons
(a). Includes ARSA discharge to the percolation ponds.
Although the City did complete and submit a Capacity Expansion Completion Report in 2016 (Dexter Wilson, 2016) and a Water Balance Update and Capacity Expansion Completion Report in March 2021 (Coastland Engineering, 2021), the Regional Board Executive Officer has not approved either report. The WDRs state that the Completion Report shall provide a water balance capacity analysis demonstrating that the "as-built hydraulic capacity of the WWTF is consistent with the flow limits." However, both reports provided to the Regional Board appear to focus on the capacity that will be available following specific improvements. Therefore, it is not clear that the reports meet the expectations of the WDRs.
The discussion below provides West Yost's assessment of the current capacity of the WWTP.
Available Treatment Capacity
Pond treatment systems are passive processes that cannot be readily modified by operations staff to improve performance. The performance is dictated solely by flows and temperature of the water in the ponds. During the winter months, when flows are high there is less detention time in the ponds (i.e., the water must flow through the ponds faster than when flows are low). Winter temperatures are also the lowest temperatures. It is these high flow, low temperature periods for which the pond treatment capacity must be evaluated.
The WDRs require that the effluent water quality meet treatment standards "immediately downstream of Pond 4 before the effluent is discharged into the percolation ponds [Ponds 6 and 7]." West Yost developed a model of the City's pond system (Ponds 1 through 4) to assess the theoretical treatment performance of the facility during the historically observed high flow, low temperature periods. This analysis demonstrates that the ponds are not capable of meeting the current permit limitations in the observed winter conditions. Moreover, a review of the Pond 4 effluent monitoring data collected over the last few years confirms that there are regular exceedances of the limitations - consistent with what the modeling predicts.
West Yost also examined what the treatment capacity would be if Pond 5 were included as part of the treatment train. During the winter months, Pond 5 is typically full. Moreover, the WWTP provides the ability to convey flows through Pond 5 prior to discharge to the percolation ponds. Finally, Pond 5 is both aerated and lined, and is capable of processing partially treated wastewater.
WEST YOST
TM - City of lone
May 12, 2023
Based on the modeling analysis, West Yost estimates that the WWTP ADWF treatment capacity could be increased to between 0.62 to 0.72 mgd if Pond 5 is incorporated into the treatment train during the winter months. During the summer months, the City could continue to use Pond 5 for storage, as Pond 5 is not required for treatment during the lower flow, warmer summer months.
The permit for the WWTP will need to be modified to allow for this change in operation. Amongst other changes, it would need to be modified to state that the effluent water quality meet treatment standards:
"immediately downstream of Pond 4 or Pond 5, before the effluent is discharged into the percolation ponds [Ponds 6 and 7]."
Available Disposal Capacity
A calibrated water balance was developed for the WWTP. This analysis demonstrates that the WWTP has adequate disposal capacity via Ponds 6 and 7 and the existing land application areas to disposal of all the plant flows associated with a 0.61 mgd AWF condition. However, there are several relevant factors that could change this conclusion and/or that must be considered. These factors are as follows:
Flows sent from the WWTP to COWRF for golf course irrigation: Sending flow to the COWRF facility reduces the need for WWTP summer disposal capacity. However, under current conditions, the limiting condition for WWTP disposal capacity provided by Pond 6 and 7 under winter operations. Therefore, sending flows to COWRF will not change the disposal capacity for the WWTP. However, sending flows to COWRF does significantly reduce the volume of water sent to the percolation ponds in the summer months. Reducing flow to Ponds 6 and 7 allows for longer drying cycles and minimizing the potential for reducing conditions that can cause elevated iron and manganese levels in groundwater.
The water balance demonstrates that the City could supply up to 220-to-240-acre feet of the approximate 500 acre-feet irrigation demand of Castle Oaks Golf Course. Because providing flow to COWRF also reduces the amount of flow taken into the WWTP from ARSA/CDCR (in the form of backwash), sending City flow to COWRF would reduce discharges to the percolation ponds by an estimated 480-acre feet. However, there are other regional demands for irrigation reuse on the Castle Oaks Golf Course that must be considered.
Therefore, it is recommended that the City work with the regional partners to develop a region-wide master plan that considers all the possible treatment, storage, and discharge opportunities available to the region and identifies a strategy that provides the best overall approach for all parties.
• Tailwater Collection from the Town Field and WWTP Field: The current WDRs require that all tailwater generated on the Town Field and WWTP Field be routed back into the WWTP.
Currently, these flows are directed through the headworks, impacting treatment capacity.
The Regional Board added this requirement to contain this stormwater runoff as a provision of the WDRs following a decision by the City that the effluent would not be disinfected prior to irrigation. West Yost has worked with several treatment facilities throughout the Central Valley to develop a management program for sites that receive undisinfected wastewater flows. Based on discussions with the Regional Board permitting staff, it is likely that a similar strategy could be employed for the City of lone. However, this would require a modification of the WDRs. Nevertheless, if the WDRs are modified to allow for discharge of runoff from the Town and WWTP Fields during the winter months, the rated WWTP disposal capacity could increase to 0.7 mgd of plant effluent flow.
WEST YOST
TM - City of lone
May 12, 2023
• Removing Pond 6 to eliminate seepage/indirect discharge to Sutter Creek: As discussed previously, there is concern that seepage from Pond 6 into Sutter Creek would be considered an indirect discharge to "waters of the United States. If this is determined to be the case, the City will need to either line or abandon Pond 6. If Pond 6 is removed as a percolation disposal facility, the effluent discharge capacity of the WWT is reduced to
0.23 mgd with tailwater runoff capture and 0.42 mgd with no tailwater capture. Therefore, such a finding will result in a disposal capacity that is less than the current flow into the WWTP. Therefore, if such a determination regarding Pond 6 is made, the City will need time to construct new facilities to replace Pond 6.
Removing Pond 6 and Pond 7 to eliminate all groundwater discharges: If both Ponds 6 and 7 are no longer available for percolation, a major facility expansion would be needed. The March 2021 Water Balance Update and Capacity Expansion Completion Report (Coastland, 2021) concluded that eliminating Ponds 6 and 7 would require that the City build a 421 ac-ft lined storage pond to accommodate the current flows [0.37 mgd at the time] assuming the City could rely on the COWRF facility for discharge. This storage capacity requirement would need to be expanded to a 729 ac-ft storage facility to accommodate the projected 2039 flows [0.73 mgd]. Assuming the cost of $33,000 per acre foot to design and construct storage facilities defined in the 2021 report, a 729 acre-feet storage facility would require $24.0 million. These costs do not account for land purchase costs, which would likely be significant for such a large facility. Moreover, if discharge to the COWRF facility were not feasible, the City would need to develop an equivalent land application site.
Summary of Findings and Recommendations
As previously noted, the City should pursue recission of the current CDO and adoption of a new CDO that reflects the latest findings related to groundwater quality and provides for manganese limitations that are based on scientific principles. To support this action, the City will need to evaluate and reach a conclusion regarding the likelihood that discharges to Pond 6 constituent a discharge to "waters of the United States." The specific requirements of this effort will need to be defined based on input from legal counsel. If a finding is made that discharges to Pond 6 likely constituent a discharge to "waters of the United States," the City will ultimately need to abandon Pond 6 and construct replacement facilities.
The current WDRs include flow-based limitations that are lower than flows seen at the WWTP. Based on the water balance analysis completed by West Yost, the City should be able to justify an increase to the WWTP capacity based on an ADWF of approximately 0.6 mgd (assuming all existing facilities remain in place). Moreover, if the City can get the WDRs modified to allow for discharge of runoff from the Town and WWTP Fields during the winter months (after irrigation has ceased), this capacity could potentially be increased to 0.7 mgd. A 0.7 mgd permitted flow capacity would allow for an approximate 50 percent increase in flow to the WWTP.
To maintain the aerobic conditions in the soil beneath the ponds, the City will need to minimize discharges to the percolation ponds. To accomplish this, the City will either need to begin discharging flow to the Castle Oaks Golf Course via the COWRF or identify another suitable land application site. Maintaining the ability to use one or both percolation ponds is a critical component of the water balance for the City and its regional partners, ARSA and CDCR. Therefore, the City should work with the regional partners to develop a region-wide master plan that considers all the possible treatment, storage, and discharge opportunities available to the region and identifies a strategy that provides the best overall approach for all parties. This approach should include a strategy that allows the City to discharge flows from the WWTP to a land application site during the summer months so that the percolation ponds can remain a viable winter discharge location.
WEST YOST
TM - City of lone
May 12, 2023
Finally, the course of action for modifying the WWTP WDRs and developing a region-wide master plan depends on the outcome of the City's assessment of Pond 6 (and Pond 7) and discussions with the Regional Board regarding the adoption of a new CDO (and the associated timelines that could be provided through this action). If through this process it is concluded that Pond 6 and/or Pond 7 will need to be abandoned in the next few years, the City (either independently or through a region-wide master plan) will need to define what facilities will be constructed to offset the disposal capacity provided by one or both ponds. This planning work would likely need to occur before the City seeks new WDRs for the WWTP.
In the interim period before new WDRs are adopted, the City may need to work with the Regional Board to seek modifications to the current WDRs to allow for increased permitted discharge capacity based on the evaluation of the existing facilities. Moreover, if it is determined that only Pond 6 must be eliminated due to it connection to Sutter Creek but Pond 7 can remain pending continued evaluation of manganese reductions in groundwater, modifications to the WDRs may also be needed to allow discharges from the WWTP to either the COWRF or another suitable land application site so that flows to Pond 6 and 7 are minimized in the summer months.
KEY TOPICS RELATED TO THE COWRF
This section addresses two key topics related to the COWRF, as follows:
• Title 22 Engineering Report
• VOC Monitoring
• Golf Course Drainage
Following a discussion of these topics, a summary of findings and recommendations is presented.
Title 22 Engineering Report
A Title 22 Engineering Report is a document that describes how a project will comply with the state's Water Recycling Criteria that were adopted in 2000. California Water Code requires that a Title 22 Engineering Report be submitted to the Regional Board and the Division of Drinking Water (DDW) for approval prior to when projects are implemented. Requirements for what must be included in Title 22 Engineering Report are detailed in the State's 2001 document: Guidelines for the Preparation of an Engineering Report for the Production, Distribution And Use Of Recycled Water.
Because the COWRF/Castle Oaks Golf Course project pre-dated the adoption of the state's Water Recycling Criteria, a Title 22 Engineering Report was not prepared for this system prior to the development of a permit for these facilities. In 2003, the City did develop a Title 22 Engineer Report (Eco Logic, 2003).
Significant changes related to the interpretation and implementation of the state's Water Recycling Criteria have occurred since 2003. One notable change has been the State's interpretation of the level of detail that must be included in Title 22 Engineering Reports. Accordingly, the 2003 report does not include all the expected details. Recent discussions with the Regional Board indicate that an updated report will need to be developed and submitted to support adoption of new WRRs for the COWRF.
There are two key items that are not adequately described in the current report and will need to be developed:
• Tracer Study: A tracer study for the COWRF disinfection system that clearly documents that the required 90-minute modal contact time and 450-mg-min Contact Time (CT) requirements are met will need to be developed. Such a study must be completed and documented following protocols that are acceptable to DDW.
WEST YOST
TM - City of lone
May 12, 2023
• Use Area Mapping: Detailed mapping of the irrigation system and recycled water storage ponds associated with the Castle Oaks Golf Course will need to be developed. It is our understanding that there is no detailed mapping available of this system in electronic or paper copy format. Therefore, the required mapping will likely need to be developed through a site survey to locate the irrigation facilities. This can be done directly using global positioning system (GPS) technology.
VOC Monitoring
The Regional Board has identified a concern related to elevated concentrations of Volatile Organic Compounds (VOCs) and Semi Volatile Organic Compounds (SVOCs) in the discharges from MCSP. MCSP has been monitoring VOCs monthly in its secondary wastewater treatment plant influent and effluent for over 20 years. In the 2015 permit for MCP's treatment plant, the Regional Board specifically noted elevated levels of acetone, toluene, and chloroform.
Due in part to concerns related to VOCs, the Regional Board adopted revised monitoring and reporting requirements for the ARSA Outfall and COWRF in October 2021 that requires, among other things, weekly monitoring of VOCs in the COWRE influent and effluent and quarterly monitoring of VOCs in the Castle Oak Golf Course monitoring wells. Revised monitoring and reporting requirements were also adopted at the same time for the MCSP treatment plant. The requirements include:
• Weekly monitoring of VOCs and SVOCs in the MCSP treatment plant influent, the effluent and the facilities' effluent storage reservoir;
• Quarterly monitoring of VOCs and SVOCs in the monitoring wells associated with the MCSP land application site;
• Bi-monthly monitoring for VOCs in Mule Creek upstream and downstream of the area adjacent to the MCSP land application site; and
• Quarterly monitoring of VOCs and SVOCs in seven (7) domestic wells located downgradient of the MCSP facilities.
West Yost has reviewed the VOC data collected by the City and a limited VOC/SVOC data set provided for MCSP. A summary of all the VOC/SVOC parameters that have been detected in the MCSP or COWRF is provided in Table 4. Table 4 also provides the lowest applicable water quality objective and the lowest possible health advisory level for each of the detected parameters, where these values are defined as follows:
• Water Quality Objective: enforceable standard established by the United States Environmental Protection Agency (USEPA) and State Water Resources Control Board (State Water Board) to protect public health and welfare by limiting the levels of contaminants in drinking water and groundwater. Water Quality Objectives applicable to discharges from wastewater treatment plants to groundwater generally include:
- Primary and secondary Maximum Contaminant Levels (MCLs), which are the standards applied to all public drinking water supplies.
- California Toxics Rule (CTR) criteria, which are standards for priority toxic pollutants that are applied to waters in the state (i.e., in groundwater). • Heath Advisory Level: a non-enforceable limit established by the USEPA and State Water Board as technical guidance to assist with water consumption and groundwater remediation decisions.
WEST YOST
Table 4. VOC Analytes Detected in Influent and Effluent at COWRF and MCSP(a), ug/L Lowest Lowest Advisory
MCSP Effluent Storage
Water Level if Water
Quality Objectives COWRF Influent COWRF Effluent MCSP Efluent Quality
Objective Basis of Standard Don't Apply Basis of Advisory Level Average® Maximum Average | Maximum | Average" Average!, laximun 2-Methylphenol (o-cresol) n/a n/a USEPA IRIS Reference Dose 3 & 4-Methylphenol (m & p-cresol) n/a n/a USEPA IRIS Reference Dose Acetone n/a 6,300 USEPA IRIS Reference Dose = 24 9.4 16 Bromomethane 48 CTR - Source of Drinking Water n/a n/a 0.30 1.2 <0.25 <0.25 <0.25 <0.25 <0.25 <0.25 <0.25 <0.25 Carbon tetrachloride 0.5 CA Maximum Contaminant Level n/a n/a <0.25 <0.25 <0.25 <0.25 <0.25 <0.25 0.29 0.60 <0.25 <0.25 Chloroethane 0.25 CTR - Source of Drinking Water n/a n/a 0.28 0.89 <0.25 <0.25 <0.25 <0.25 <0.25 <0.25 <0.25 <0.25 Chloromethane n/a n/a 400 USEPA Health Advisory 0.31 1.7 <0.25 <0.25 <0.25 <0.25 0.87 5.9 <0.25 <0.25 Di-n-octyl phthalate n/a n/a n/a n/a
Methyl ethyi ketone n/a n/a 4,000 USEPA Health Advisory 1.7 4.4 1.6 1.6 3.3 4.0 09 1.2 Naphthalene n/a n/a 100 USEPA Health Advisory <0.25 <0.25 <0.25 <0.25 <0.25 <0.25 0.90 <0.25 <0.25 henol 21,000 CTR - Source of Drinking Water n/a n/a 14
Toluene 150 CA Maximum Contaminant Level 4.0 2.4 6.3 6.0 <0.25 <0.25 Xylenes (total) 1,750 CA Maximum Contaminant Level| n/a n/a <0.25 <0.25 <0.25 m,p-Xylene 1,750(c) A Maximum Contaminant Level n/a <0.25 <0.25 <0.25 o-Xylene 1,750() A Maximum Contaminant Level| n/a n/a <0.25 <0.25 <0.25 Bromodichloromethane 0.56 CTR - Source of Drinking Water n/a n/a 1.1 3.8 1.3 Chloroform 80(d) USEPA Maximum Contaminant Level n/a 160 Trihalomethanes (total) USEPA Maximum Contaminant Level n/a n/a 37.4 164 <0.25 (a) Monitoring was not conducted for parameters shown with "..". b) Average values calculated by applying 1/2 the detection limit to non-detect constituents. (c) Water Quality Objective is defined for Total Xylenes (sum of o-Xylene, m-Xylene, p-Xylene). | (d) Water Quality Objective is defined for Total Thalomethanes (sum of bromoform, bromodichloromethane, chloroform and dibromochloromethane). n/a = not applicable
CTR = California Toxics Rule
USEPA - United States Environmental Protection Agency
MCSP samples were analyzed by EXCELCHEM Laboratories, Inc., BC Laboratories, Inc., and Alpha Analytical Laboratories, Inc. Reporting limits varied between labs for certain analytes, such as Acetone and Toluene.
COWRF samples were analyzed by Alpha Analytical Laboratories, Inc WEST YOST City of lone
NC.988-50-22 03 TM - WDR Assistance
TM - City of lone
May 12, 2023
The following findings can be derived from the information shown in Table 3:
• Nine VOCs have been detected in the COWRF influent and five VOCs have been detected in the COWRF effluent.
• With respect to the COWRF effluent
- Three parameters (acetone, methyl ethyl ketone, and toluene) are solvents and have concentrations that are less than the applicable water quality objectives. These compounds are typical used in commercial products such as a tool cleaners, degreasers, paints, and paint thinners.
— Two parameters that were detected are disinfection byproducts (shaded in grey):
bromodichloromethane and chloroform. These compounds are common water treatment chlorine disinfection byproducts and are two of the four parameters within the category of total trihalomethanes (TTHMs), which is also included on Table 4 for reference. These parameters would be expected to be found in the effluent of a wastewater treatment plant that uses chlorine for disinfection. However, the levels of these analytes have also been detected at high concentrations in the influent, so they are also not fully being created by the COWRF. Nevertheless, even if they were eliminated from the COWRF • Fifteen parameters were detected in the MSCP influent/effluent/storage reservoir within the data set we examined. These fifteen parameters generally include the five parameters identified in the COWRF influent.
The City initiated groundwater monitoring for VOCs in the first quarter 2023. All the data collected in the groundwater was reported as non-detect. However, not all parameters that have been detected in the MSCP/COWRF flows were analyzed in the groundwater samples. Moving forward, the City will need to work with the groundwater monitoring sampling and analytical consultant to ensure that future monitoring does include all required VOC parameters.
Of the parameters that were monitored in the groundwater, toluene provides a good representation of the likely fate and transport of VOCs through the COWRF system as it has been consistently detected in the MCSP discharge and the COWRF effluent. Because toluene was reported as non-detect in the groundwater, it is likely that other VOCs would also not be present. In general, it is not expected that most VOCs will migrate to groundwater from the irrigation system, as they are likely to volatilize as the water is pushed through the irrigation sprinkler system and or be removed through soil-aquifer treatment.
Finally, it is recommended that the City consider the following steps with respect to ongoing VOC monitoring and control:
• The City should obtain all VOC and SVOC collected data from MSCP. This information can be used to better assess the risks associated with this source of flow and the likely fate and transport of these compounds in the City's system.
Given the body of data collected to date by the City does not demonstrate a risk with respect to exceeding water quality objectives, the City should have a reasonable case to request reduction of monitoring for VOCs. A reduction in monitoring from weekly to monthly will significantly reduce monitoring costs.
WEST YOST
TM - City of lone
May 12, 2023
• As noted previously, the COWRF permit does not currently address the acceptance of flow from MCSP. Therefore, the City does have regulatory risk associated with accepting this flow. Therefore, the City will need to incorporate the acceptance of MCSP flow into a new permit (i.e., WRRS) for the COWRF facility. The City should also establish water quality requirements related to discharges to the COWRF that allow the City the right to reject flows if they do not meet specific water quality standards.
Golf Course Drainage
There have been concerns raised by the Regional Board regarding the potential for seepage from the Castle Oaks Golf Course to the City's storm drain system that discharges to Sutter Creek. This concern was raised following observation by Regional Board staff of flow in the storm drain system entering Sutter Creek during the summer months.
While it is not uncommon for storm drain systems to contain flows during the summer months, it is critical that the City confirm that the flows do not originate from the Castle Oaks Golf Course recycled water operations. The golf course is large (900 acres) and includes fifteen storage ponds that can contain recycled water. The facility is also surrounded by homes that are served by the City's storm drain system.
Therefore, an investigation is needed to determine whether there is potential for water from the golf course to enter the storm drain system.
West Yost's current scope of work includes the completion of a dye study to assess the potential for an unknown connection between the golf course recycled water system and the City's storm drain system.
This testing will involve adding a traceable dye (which is colorless at the low concentrations that are added) to the recycled water and possibly the recycled water storage ponds. Monitoring equipment that can detect low concentrations of dye can then be deployed in the stormwater system to determine if any of the dye is present in the flow entering Sutter Creek. This testing should be completed near the peak of the 2023 irrigation season.
The revised MRP adopted in 2021 also includes a requirement that there be daily inspections of the golf course during periods of irrigation to confirm there is no tailwater runoff leaving the site. To date, the City has not incorporated this effort into the routine monitoring of the facility. This monitoring should begin immediately upon the start of the irrigation season in 2023. The City should specifically establish a monitoring program that involves inspecting specific areas where runoff may occur and/or there is potential for flow to enter a storm drain.
Currently, the City has detailed mapping of the storm drain system. With the mapping that must be developed for the Title 22 Engineering Report that was discussed previously, the City should have the tools needed to identify these potential areas of concern.
WEST YOST
TM - City of lone
May 12, 2023
Summary of Findings and Recommendations
The COWRF facility needs to be brought up to date with respect to the current Water Recycling Criteria.
This will include developing an updated Title 22 Engineering Report, adoption of new WRRs, and performing routine inspections to ensure runoff does not leave the site during irrigation events. The new WRRs will also need to identify all parties that contribute flows to the facility, which may include ARSA, CDCR and the City's WWTP.
The City should proactively work with the Regional Board and MSCP regarding the potential for VOCs to be discharged to the COWRF. This should include developing standards for discharges to the COWRF. In addition, through the WRR renewal process, the City should provide the Regional Board with the information needed to support a reduction in VOC monitoring at the COWRF. This information will need to include a statistically significant set of groundwater monitoring data.
REFERENCES
Coastland, March 2021, City of lone Water Balance Update and 2020 Capacity Expansion Completion Report Dexter Wilson Engineering Inc., December 2016, City of lone 2020 Capacity Expansion Completion Report EcoLogic, May 2003 City of lone Castle Oaks Water Reclamation Plant Engineering Report on the Production of Recycled Water
Hydrofocus Inc., December 2013, Estimated Concentration Changes in Compliance Wells, lone Wastewater Treatment Facility.
WEST YOST