Wilson Grove Formation Highlands
Statistics
- Basin Name
- Wilson Grove Formation Highlands
- Basin Number
- 1-059
- SGMA Basin Priority
- Very Low
- Critically Overdrafted
- No
- Hydrologic Region Name
- North Coast
- Counties
- Marin, Sonoma
- Adjacent Basins
Basin Notes
2003: Bulletin 118 basin description
2018: Draft 2018 Basin Prioritization Basin Results ‐ Part 15/18/2018 Sonoma Valley Groundwater Sustainability Agency response to reprioritization Basin boundary modification requests 1, 2 pending from Petaluma Valley 2-001 and Sand Point Area 2-027
2019: Basin boundary modification approved revising a portion of the shared boundary between the Petaluma Valley basin and the Wilson Grove Formation Highlands basin so the majority of the City of Petaluma is within the Petaluma Valley basin. 2019 Basin Prioritization Phase 2 Draft: very low GAMA report: “In the North San Francisco Bay study unit (Wilson Grove Formation Highlands, Alexander Valley, Santa Rosa Valley, Petaluma Valley, Lower Russian River Valley, Kenwood Valley, Volcanic Highlands, and Napa-Sonoma Valley GW basins), TDS was present at high concentrations (greater than the upper limit) in about 1% of the primary aquifers. About 7% of the primary aquifers had moderate TDS concentrations (between the recommended and upper limit), and about 92% had low concentrations (less than the recommended limit).”
At-A-Glance
California Water Library Documents About This Basin
Three-Dimensional Hydrogeologic Framework Model of the Russian River Watershed, California
U.S. Geological Survey (USGS) | December 19th, 2024
The U.S. Geological Survey (USGS) was invited by the California State Water Resources Control Board and Sonoma County Water Agency to cooperate on a scientific investigat