TO: Napa County Board of Supervisors
FROM: Brian D. Bordona - Director of Planning, Building and Environmental Services
REPORT BY: Jamison Crosby - Natural Resources Conservation Manager
SUBJECT: Approve and authorize Chair to sign a Memorandum of Understanding between Napa County, the NCGSA, and the State Water Resources Control Board to coordinate and collaborate on hydrologic model development
RECOMMENDATION
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Approve and authorize Agreement No. 8696 between the Napa County Groundwater Sustainability Agency, Napa County and the State Water Resources Control Board to coordinate and incorporate the Napa County Groundwater Sustainability Agency's groundwater hydrologic model into the State Water Resources Control Board's water supply model for the Napa River Watershed. (No Fiscal Impact; Discretionary)
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BACKGROUND
This Memorandum of Understanding (MOU) involves an agreement between Napa County, the NCGSA, and the State Water Board. This request for approval is related to item 25-753 for consideration by the NCGSA and requires both Napa County and NCGSA approval to enter an MOU with the State Water Board.
The State Water Resources Control Board (State Water Board) first introduced NCGSA staff to a project of their Supply and Demand Assessment Unit (SDA) at a virtual meeting on November 14, 2023. State Water Board staff described a new initiative wherein the Napa River Watershed was selected as a Pilot Watershed for a modeling project with the State Water Board and their consultants, Paradigm Environmental, Inc., entitled "Modeling Water Supply and Demand in the Napa River Watershed". The presentation provided an overview of the modeling effort proposed in the Napa River Watershed, which is to develop a water supply (hydrologic) model that assesses surface water availability where low flows and drought conditions may threaten water supplies, impair critical habitat, and/or create uncertainty for water users. The State Water Board's stated objective is t...
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