Simulation of groundwater and surface-water resources of the Santa Rosa Plain watershed, Sonoma County, California

Scientific Investigations Report 2014-5052
Prepared in cooperation with Sonoma County, Sonoma County Water Agency, City of Santa Rosa, City of Rohnert Park, City of Sebastopol, Town of Windsor, California American Water
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Abstract

Water managers in the Santa Rosa Plain face the challenge of meeting increasing water demand with a combination of Russian River water, which has uncertainties in its future availability; local groundwater resources; and ongoing and expanding recycled water and water from other conservation programs. To address this challenge, the U.S. Geological Survey, in cooperation with the Sonoma County Water Agency, the cities of Cotati, Rohnert Park, Santa Rosa, and Sebastopol, the town of Windsor, the California American Water Company, and the County of Sonoma, undertook development of a fully coupled groundwater and surface-water model to better understand and to help manage the hydrologic resources in the Santa Rosa Plain watershed.


The purpose of this report is to (1) describe the construction and calibration of the fully coupled groundwater and surface-water flow model for the Santa Rosa Plain watershed, referred to as the Santa Rosa Plain hydrologic model; (2) present results from simulation of the Santa Rosa Plain hydrologic model, including water budgets, recharge distributions, streamflow, and the effect of pumping on water-budget components; and (3) present the results from using the model to evaluate the potential hydrologic effects of climate change and variability without pumpage for water years 2011-99 and with projected pumpage for water years 2011-40.

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Additional publication details

Publication type Report
Publication Subtype USGS Numbered Series
Title Simulation of groundwater and surface-water resources of the Santa Rosa Plain watershed, Sonoma County, California
Series title Scientific Investigations Report
Series number 2014-5052
DOI 10.3133/sir20145052
Year Published 2014
Language English
Publisher U.S. Geological Survey
Publisher location Reston, VA
Contributing office(s) California Water Science Center
Description xxx, 258 p.
Country United States
State California
County Sonoma County
Other Geospatial Santa Rosa Plain
Projection 2003 State Plane Projection
Scale 250000
Online Only (Y/N) Y
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