TO: Technical Advisory Group for the Napa County Groundwater Sustainability Agency
FROM: Brian Bordona - Director of Planning, Building and Environmental Services
REPORT BY: Jamison Crosby, Natural Resources Conservation Manager
SUBJECT: Overview and Updates to the Napa Valley Integrated Hydrologic Model
RECOMMENDATION
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The Technical Advisory Group (TAG) members will receive a presentation from Luhdorff and Scalmanini, Consulting Engineers (LSCE) featuring an overview of ongoing updates to the Napa Valley Integrated Hydrologic Model. This will include an overview of key model developments pertaining to the simulation of historical and projected hydrologic conditions and water use. Framing questions will also be provided to receive direction and feedback from the TAG.
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EXECUTIVE SUMMARY
LSCE staff provided several presentations to the Groundwater Sustainability Plan Advisory Committee (GSPAC) during 2021 focused on the development and use of NVIHM in supporting the Groundwater Sustainability Plan (GSP) and sustainable management of groundwater. LSCE has continued to develop and update NVIHM as part of GSP implementation to better refine key elements identified through feedback and comments received from the GSPAC, recommendations in the GSP, and input from the TAG. This presentation introduces the current and planned efforts in updating the representation of surface water and watershed response, agricultural water use and soil moisture, subsurface geology, and climate (Supporting Document A). A presentation is also posted on the County's website summarizing relevant background information pertaining to NVIHM development (Supporting Document B).
Procedure
Staff introduces.
Questions and answers with the TAG.
Public comments.
ENVIRONMENTAL IMPACT
ENVIRONMENTAL DETERMINATION: The proposed action is not a project as defined by 14 California Code of Regulations 15378 (State CEQA Guidelines) and therefore CEQA is not applicable.
BACKGROUND AND DISCUSSION
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