News 
News on the Groundwater Ambient Monitoring & Assessment Program
- Northern California Coast Groundwater Quality Study Data Released Sep 20, 2011
- Scientists to discuss initial results of Western San Joaquin Valley groundwater study Mar 1, 2011
- Scientists to discuss initial results of Northern Coast Ranges groundwater study Jan 10, 2011
- High concentrations of arsenic found in 9 percent of groundwater in the northern San Joaquin Valley Sep 2, 2010
- New study looks at groundwater quality in north San Francisco Bay area Sep 3, 2010
- Learn about groundwater-testing program in the Cascades and Modoc Plateau Jul 6, 2010
- Scientists to discuss initial results of South Coast Ranges-Coastal groundwater study Jun 1, 2010
National USGS News
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Laurel Rogers
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Patricia Orlando
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