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[Photo: Ground water flowing out of well.]

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Groundwater Availability Detailed in California's Central Valley

USGS Groundwater Watch

USGS maintains a network of active wells to provide basic statistics about groundwater levels.

[Image: USGS active water level wells location map.]

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USGS Water Science Centers are located in each state.

[Map: There is a USGS Water Science Center office in each State.] Washington Oregon California Idaho Nevada Montana Wyoming Utah Colorado Arizona New Mexico North Dakota South Dakota Nebraska Kansas Oklahoma Texas Minnesota Iowa Missouri Arkansas Louisiana Wisconsin Illinois Mississippi Michigan Indiana Ohio Kentucky Tennessee Alabama Pennsylvania West Virginia Georgia Florida Caribbean Alaska Hawaii and Pacific Islands New York Vermont New Hampshire Maine Massachusetts South Carolina North Carolina Rhode Island Virginia Connecticut New Jersey Maryland-Delaware-D.C.

USGS Groundwater Resources Program

The Groundwater Resources Program provides the objective scientific information and develops the interdisciplinary understanding necessary to assess and quantify the availability of the Nation's groundwater resources.

Regional Groundwater Studies

[Map: USGS Regional Ground-Water Availability Studies]

Methods and Modeling


Data & Information


About the Groundwater Resources Program

Groundwater & the Environment

[Photo: Rhodomine dye is injected in a stream to trace water movement through a karst aquifer (photograph by Charles Taylor, USGS).]

Publication


Highlighted Information of Interest

[Cover: USGS Professional Paper 1766] Groundwater availability of the Central Valley Aquifer, California
USGS Professional Paper 1766

[Cover: USGS Fact Sheet 2009-3057] California's Central Valley groundwater study
USGS Fact Sheet 2009-3057

[Cover: USGS Circular 1323] Ground-water availability in the United States
USGS Circular 1323

[Cover: USGS SIR2007-5197] Consumptive water use coefficients for Great Lakes Basin
USGS Scientific Investigations Report 2007-5197

[Cover: USGS Professional Paper 1703] Ground-water recharge in southwestern US
USGS Professional Paper 1703

[Cover: SEAWAT v4] SEAWAT v4 - Simulation of 3D variable-density ground-water flow and transport
USGS Techniques and Methods Book 6, Chapter A22

[Cover: USGS SIR2007-5247] Water-level changes in aquifers of the Atlantic Coastal Plain, predevelopment to 2000
USGS Scientific Investigations Report 2007-5247


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Page Last Modified: Friday, 23-Oct-2009 21:15:13 EDT