Napa-Sonoma Valley – Napa Valley

Statistics

Basin Name

Basin Number

2-002.01

SGMA Basin Priority

High

Critically Overdrafted

Hydrologic Region Name

San Francisco Bay

Counties

Napa

Adjacent Basins

Napa-Sonoma Valley - Lowlands 2-002.03, Napa-Sonoma Valley - Sonoma Valley 2-002.02,

Basin Notes

2003: Bulletin 118 2003 basin description

2014: Basin Prioritization comments: Two isolated areas in the Sonoma Valley indicate substantial declines in GW elevations and RWQCB report that 43 underground fuel tank leaks have occurred in the basin (unpublished B-118 data) (Ludhorff & Scalmanini Consulting Engineers, 1999).

2018: Final Basin Prioritization: High.

2022: January 31 – GSP submitted to DWR

2023: January 26 – GSP approved by DWR