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Timothy M. Mathany

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Articles by Timothy M. Mathany

Status and understanding of groundwater quality in the Bear Valley and Lake Arrowhead Watershed Study Unit, 2010: California GAMA Priority Basin Project

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By Timothy M. Mathany, Carmen Burton
| usgs.gov
Groundwater quality in the 112-square-mile Bear Valley and Lake Arrowhead Watershed (BEAR) study unit was investigated as part of the Priority Basin Project (PBP) of the Groundwater Ambient Monitoring and Assessment (GAMA) Program. The study unit comprises two study areas (Bear Valley and Lake Arrowhead Watershed) in southern California in San Bernardino County.
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Groundwater Quality in the Bear Valley and Lake Arrowhead Watershed, California

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By Timothy M. Mathany, Carmen Burton, Miranda S. Fram
| usgs.gov
Groundwater provides more than 40 percent of California’s drinking water. To protect this vital resource, the State of California created the Groundwater Ambient Monitoring and Assessment (GAMA) Program. The Priority Basin Project of the GAMA Program provides a comprehensive assessment of the State’s groundwater quality and increases public access to groundwater-quality information.
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Groundwater-Quality Data in 12 GAMA Study Units: Results from the 2006-10 Initial Sampling Period and the 2008-13 Trend Sampling Period, California GAMA Priority Basin Project

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By Timothy M. Mathany
| usgs.gov
The Priority Basin Project (PBP) of the Groundwater Ambient Monitoring and Assessment (GAMA) program was developed in response to the Groundwater Quality Monitoring Act of 2001 and is being conducted by the U.S. Geological Survey in cooperation with the California State Water Resources Control Board. From 2004 through 2012, the GAMA-PBP collected samples and assessed the quality of groundwater resources that supply public drinking water in 35 study units across the State.
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