TO: Board of Supervisors
FROM: Sheryl L. Bratton, County Counsel
REPORT BY: Rebekah Reynolds, Deputy County Counsel
SUBJECT: Adopt an Ordinance updating Napa County Code Section 13.16.010 authorizing Environmental Health to be the Local Agency for implementing the Winery Order in the San Francisco Bay Regional Water Quality Control Board (Region 2).
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RECOMMENDATION
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Adopt an Ordinance of the Napa County Board of Supervisors, State of California amending Section 13.16.010 (Scope of Division II Provisions) of Chapter 13.16 (General Provisions and Definitions) of Title 13 (Water, Sewers and Public Services) to Napa County Code providing the Planning, Building and Environmental Services Department’s Environmental Health Division with authority from the San Francisco Bay Regional Water Quality Control Board to act as the Local Agency for the oversight of the implementation of the Winery Order. (No Fiscal Impact; Discretionary)
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BACKGROUND
On October 13, 2026, the ordinance was introduced before the Board of Supervisors at a regularly scheduled meeting and the Board voted unanimously to support a motion of intent to adopt the ordinance. This action allows Environmental Health (EH) oversight of the State Water Resources Control Board (SWRCB) Order WQ 2021-0002-DWQ, "General Waste Discharge Requirements for Winery Process Water" (the Winery Order), for the Napa River Watershed. The Winery Order, adopted in January 2021, set statewide discharge standards, monitoring and reporting requirements for anyone discharging winery process water to lands of the State.
Napa County is split between two California regional Water Quality Control Boards. The San Francisco Bay Water Board (Region 2) governs the western and southern portions of Napa County and covers the Napa River Watershed. The Central Valley Board (Region 5) governs the northeast and eastern portions and includes the watershed environments that drain east toward the Central Valley and the Lake Berryessa...
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