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California Water Science Center (CAWSC) - Groundwater Ambient Monitoring and Assessment (GAMA) Program

What is GAMA?

Joshua Tree located in Antelope Valley, California.<br />Photo by: Barbara J. Milby Dawson Well in Los Angeles County, California.<br />Photo by: Carmen Burton Stanislaus County, California.<br />Photo by: Isabel Pimentel Irrigation canal in Stanislaus, California.<br />Photo by: Tyler Johnson Refinery in Long Beach, California.<br />Photo by: Dara Goldrath Beverly Hills, California.<br />Photo by: Dara Goldrath Citrus orchard, Coachella Valley, California.<br />Photo by: Michael Wright "Mr. Rex", Cabazon, California.<br />Photo by: Dara Goldrath Golf course used for sampling near Indio, California.<br />Photo by: Timothy Mathany Wind farm, San Gorgonio Pass, California.<br />Photo by: Dara Goldrath Colorado River and Needles Mountains, California.<br />Photo by: Mary Ray Irrigation canal and field near Blythe, California.<br />Photo by: Michael Wright Well sampled near Palo Verde, California.<br />Photo by: Jill Densmore Burney Falls, California.<br />Photo by: George Bennett Mt. Shasta, California.<br />Photo by: George Bennett Mojave River at Helendale, California.<br />Photo by: Michael Wright Production Well, Apple Valley, California.<br />Photo by: Peter Bennett Rice field and grain silos in Colusa County, California.<br />Photo by: Cathy Munday Irrigation well in Butte County, California.<br />Photo by: Michael Judd Trinidad Head Memorial Lighthouse, California.<br />Photo by: George Bennett Municipal supply well in Sonoma County, California.<br />Photo by: Tyler Johnson Pump in Monterey Bay, California.<br />Photo by: Andrea Altmann Agricultural fields in Salinas Valley, California.<br />Photo by: Andrea Altmann Cotton field in San Joaquin Valley, California.<br />Photo by: Justin Kulongoski Well in San Joaquin Valley, California.<br />Photo by: Michael Wright Santa Clara Valley, California, California.<br />Photo by: Michael Wright Monitoring well in San Francisco County, California, May 2007.<br />Photo by: Michael Solt Looking west over Santa Clara River, California.<br />Photo by: Jill Densmore Bails of alfalfa, near City of Madera<br />Photo by: Jennifer Shelton Burney Falls, California.<br />Photo by: George Bennett Field near City of Paynes Creek, California.<br />Photo by: Jennifer Shelton Horses and formally wind powered well near Chowchilla, California.<br />Photo by: Jennifer Shelton Joshua Tree at Sunset in Rainbow Basin, California.<br />Photo by: Cathy Munday Llamas investigating sampling vechicle, near city of Etna, California.<br />Photo by: George Bennett Mt.Shasta, California.<br />Photo by: George Bennett Row crops being irrigated in Kern, California.<br />Photo by: Timothy Mathany Tractor in alfalfa field, near Madera, California.<br />Photo by: Jennifer Shelton Tractor harvesting alfalfa near City of Madera, California.<br />Photo by: Jennifer Shelton USGS workers identifying a well in Santa Barbara, California.<br />Photo by: Rob Meyer Well with water flowing out of spigot near Madera, California.<br />Photo by: Jennifer Shelton Worker sampling irrigation well near Kern, California.<br />Photo by: Timothy Mathany Hills in the Spring, Santa Cruz Mountains, California.<br />Photo by: George Bennett Hills in the Spring, Santa Cruz Mountains, California.<br />Photo by: George Bennett Northern San Francisco Bay, California.<br />Photo by: Tyler Johnson Northern San Francisco Bay, California.<br />Photo by: Tyler Johnson Northern San Francisco Bay, California.<br />Photo by: Tyler Johnson Northern San Francisco Bay, California.<br />Photo by: Tyler Johnson Worker unloading mobile lab, City of Big Bear, California.<br />Photo by: Jennifer Shelton Owens Valley, California.<br />Photo by: Cathy Munday Owens Valley, California.<br />Photo by: Cathy Munday Owens Valley, California.<br />Photo by: Cathy Munday Northern San Joaquin Valley, California.<br />Photo by: Cathy Munday San Francisco Bay, California.<br />Photo by: Cathy Munday
Groundwater Ambient Monitoring and Assessment program: U.S. Geological Survey Fact Sheet 2004-3088
Deep aquifer assessment
California Groundwater Ambient Monitoring and Assessment (GAMA) Program Priority Basin Project: Shallow Aquifer Assessment: U.S. Geological Survey Fact Sheet 2012-3136
Shallow aquifer assessment

Where has GAMA been?

Select a Province to navigate to study unit. Klamath Mountains Modoc Plateau and Cascades Northern Coast Ranges Central Valley Sierra Nevada Southern Coast Ranges Transverse and Selected Peninsular Range San Diego Basin and Range Desert

The Groundwater Ambient Monitoring and Assessment Program (GAMA) is a statewide, comprehensive assessment of groundwater quality designed to help better understand and identify risks to groundwater resources. GAMA is being implemented by the California Water Board.

The USGS is the technical lead for the Priority Basin Project (PBP), one of four GAMA components. The USGS is sampling groundwater at many locations across California in order to characterize its constituents and identify trends in groundwater quality.

The results of these tests will provide information for water agencies to address a variety of issues ranging in scale from local-water supply to statewide resource management.

Two aquifer depth zones are being studied: Deep aquifers and Shallow aquifers.

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Page Last Modified: Tuesday, 05-Nov-2013 13:41:19 EST