Consent-Community Services # 6.
Board of Supervisors
County Service Areas
- Meeting Date:
- 10/07/2025
- Brief Title
- Regulatory Compliance for Wild Wings Wastewater Treatment Plant
From:
Michael Webb, County Administrator
Staff Contact:
Yana Pavlova, County Service Areas Manager, County Administrator's Office, x8157
Supervisorial District Impact:
District 3
Subject
Approve payment of ongoing annual expenditures for regulatory compliance with the Central Valley Regional Water Quality Control Board's Nitrate Control Program for the Wild Wings County Service Area Wastewater Treatment Plant. (No general fund impact) (Webb/Pavlova)
Recommended Action
Approve payment of ongoing annual expenditures for regulatory compliance with the Central Valley Regional Water Quality Control Board's Nitrate Control Program for the Wild Wings County Service Area Wastewater Treatment Plant.
Strategic Plan Goal(s)
.png) |
Thriving Residents |
Reason for Recommended Action/Background
In May 2018, the Central Valley Regional Water Quality Control Board (the "Water Board") approved new regulatory compliance programs for salts and nitrates. As part of this initiative, the Nitrate Control Program was developed with the intent to address nitrate pollution in the Central Valley and mitigate health risks involved in the consumption of drinking water exceeding the maximum contaminant level (MCL) of 10 parts per million for nitrates. The Water Board identified Priority 1 and Priority 2 subbasins where nitrates are more prevalent and pose higher risks, with a separate compliance timeline attached to each priority level.
The Wild Wings Wastewater Treatment Plant (the "Wild Wings WWTP") holds a discharge permit for nitrates and thus falls within the purview of the Water Board's Priority 2 subbasin compliance requirements. On December 3, 2024, the Yolo County Board of Supervisors adopted Pathway B for compliance with the Water Board's Nitrate Control Program and delegated authority to the County Services Area Manager to sign a Contribution Agreement with Valley Water Collaborative to implement the Pathway B compliance approach. Pathway B is the permitting approach allowing multiple entities to form or join a Management Zone, so that permittees can collaborate in reaching program compliance. The Wild Wings WWTP is part of a Management Zone including other entities from the agriculture, food, dairy, and municipal sectors.
The timeline for compliance for Yolo County is as follows:
The Wild Wings Wastewater Treatment Plant (the "Wild Wings WWTP") holds a discharge permit for nitrates and thus falls within the purview of the Water Board's Priority 2 subbasin compliance requirements. On December 3, 2024, the Yolo County Board of Supervisors adopted Pathway B for compliance with the Water Board's Nitrate Control Program and delegated authority to the County Services Area Manager to sign a Contribution Agreement with Valley Water Collaborative to implement the Pathway B compliance approach. Pathway B is the permitting approach allowing multiple entities to form or join a Management Zone, so that permittees can collaborate in reaching program compliance. The Wild Wings WWTP is part of a Management Zone including other entities from the agriculture, food, dairy, and municipal sectors.
The timeline for compliance for Yolo County is as follows:
- December 2023: The Water Board sent Notices to Comply to nitrate permittees. Permittees had to select one of two pathways for compliance.
- December 2024: The Yolo County Board of Supervisors selected Pathway B as a compliance option for the Wild Wings WWTP.
- February 2025: Permittees submitted their Notice of Intent and began implementation of an Early Action Plan to provide safe drinking water to affected residents. For Yolo County, compliance is administered by the Valley Water Collaborative.
- 2026: Valley Water Collaborative develops a nitrate management plan for Pathway B permittees, including the Wild Wings WWTP.
- 2027 and beyond: Valley Water Collaborative administers the nitrate management plan for Pathway B permittees, including the Wild Wings WWTP.
The 2024 contribution for the Wild Wings WWTP was $4,000. Since then, staff have learned that contributions are ongoing until such a time that the Nitrate Control Program may be discontinued (which may never occur). Costs are estimated to be approximately $4,000 per fiscal year. Therefore, staff asks the Board of Supervisors to approve payment of ongoing annual expenditures associated with the Nitrate Control Program.
Collaborations (including Board advisory groups and external partner agencies)
The Wild Wings CSA Advisory Committee is aware of the Water Board's Nitrate Control Program.
Competitive Bid Process/Vendor Performance
N/A
Fiscal Impact
Fiscal impact (see budgetary detail below)
Fiscal Impact (Expenditure)
- Total cost of recommended action:
- $ 0
- Amount budgeted for expenditure:
- $ 0
- Additional expenditure authority needed:
- $ 0
- On-going commitment (annual cost):
- $ 4,000
Source of Funds for this Expenditure
- General Fund
- $0
- Wild Wings Sewer Fund
- $4,000
Further explanation as needed:
The ongoing compliance costs, estimated at $4,000 per fiscal year, have been incorporated into the FY 2025-26 budget for the Wild Wings Sewer Fund and adopted by the Board of Supervisors as part of the annual budget approval process.
Attachments
No file(s) attached.
Form Review
| Inbox | Reviewed By | Date |
|---|---|---|
| Kimberly Hood | Kimberly Hood | 09/29/2025 12:03 PM |
| Mark Bryan | Mark Bryan | 09/29/2025 12:18 PM |
| Michael Webb | Mark Bryan | 09/29/2025 12:18 PM |
| Financial Services | David Estrada | 09/30/2025 07:50 AM |
| County Counsel | Hope Welton | 09/30/2025 09:31 AM |
- Form Started By:
- ypavlova
- Started On:
- 09/12/2025 10:42 AM
- Final Approval Date:
- 09/30/2025