TO: Board of Directors, Napa County Groundwater Sustainability Agency
FROM: Brian D. Bordona, Director of Planning, Building and Environmental Services
REPORT BY: Jamison Crosby, Natural Resources Conservation Manager
SUBJECT: Napa Valley Subbasin Groundwater Sustainability Plan (GSP): Implementation of Three Workplans
RECOMMENDATION
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JOINT MEETING OF THE GROUNDWATER SUSTAINABILITY AGENCY AND TECHNICAL ADVISORY GROUP UPDATE
Receive an update on the Napa Valley Subbasin Groundwater Sustainability Plan (GSP) implementation including: the need for adaptive management due to climate change; benefits from recharge opportunities; coordination with growers' participating in pilot sites; and implementation of the GSP and the three Workplans.
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BACKGROUND
Groundwater Sustainability Plan (GSP)
In 2022, the Napa County Groundwater Sustainability Agency (NCGSA) formed a five-member Technical Advisory Group (TAG) to advise the NCGSA, respond to changing groundwater conditions, and aid in the implementation of the Napa Valley Subbasin GSP, which was approved by the Department of Water Resources on January 26, 2023.
The goal of the GSP is to achieve sustainability by ensuring that there are no Undesirable Results in the Napa Valley Subbasin by 2042. As part of early GSP implementation steps to achieve the sustainability goal, the GSP recommended implementation of the following Workplans:
* Interconnected Surface Water and Groundwater Dependent Ecosystems Workplan (recommended in GSP Section 6)
* Napa County Water Conservation Workplan (GSP Management Action #1)
* Groundwater Pumping Reduction Workplan (GSP Management Action #2)
At the NCGSA meeting on March 26, 2024, these Workplans were adopted.
The purpose of today's meeting is to provide an opportunity for the NCGSA to receive, discuss, and question the TAG about the implementation of the Workplans and provide direction on topics and questions they would like the TAG to consider during the next 6-months to 1-y...
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