Santa Rosa Valley – Santa Rosa Plain

Statistics

Basin Name

Basin Number

1-055.01

SGMA Basin Priority

High

Critically Overdrafted

Status

Subject to SGMA

DWR Region & POC

Tad Bedegrew
(916) 376-9619
Tad.Bedegrew@water.ca.gov

Number of Wells

6943

Hydrologic Region Name

North Coast Hydrologic Region

Counties

Sonoma

Adjacent Basins

Lower Russian River Valley 1-060, Santa Rosa Valley - Rincon Valley 1-055.03, Santa Rosa Valley - Healdsburg Area 1-055.02, Alexander Valley - Alexander Area 1-054.01, Wilson Grove Formation Highlands 1-059, Petaluma Valley 2-001,

At-A-Glance

Located in California’s North Coast hydrologic region, the Santa Rosa Valley – Santa Rosa Plain is 80,124 acres in size. This High priority basin is home to an estimated 250,016 people (2010 value), which have been at a rate of 16.95. Santa Rosa Valley – Santa Rosa Plain is a(n) basin with approximately 6943 wells, of which approximately 158 are water supply wells. Groundwater accounts for approximately 50.03 percent of the basin’s water supply.

Source: CA DWR

2003: Bulletin 118 basin description

Sonoma County Water Agency

2014: Santa Rosa Plain Watershed Groundwater Management Plan

May 2018: basin proposed for high priority status