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California Groundwater Ambient Monitoring and Assessment (GAMA) Program Priority Basin Project Study Areas and grid cells for assessment of groundwater resources used for public drinking-water supply

Dates

Publication Date
Start Date
2006-01-01
End Date
2014-12-31

Citation

Johnson, T.D., Watson, E., and Belitz, K., 2018, California Groundwater Ambient Monitoring and Assessment (GAMA) Program Priority Basin Project Study Areas and grid cells for assessment of groundwater resources used for public drinking-water supply: U.S. Geological Survey data release, https://doi.org/10.5066/F79Z93CN.

Summary

The California 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 State Water Resources Control Board. The USGS is the technical lead for the Priority Basin Project (PBP), one of the components of the GAMA Program. The initial focus of the GAMA Priority Basin Project in 2004 to 2012 was on assessment of water-quality in groundwater resources used for public drinking water supply (Belitz and others, 2003; 2015). Groundwater basins and sub-basins (472 in total) were prioritized based upon a number of factors (Belitz and others 2003). Two hundred [...]

Contacts

Point of Contact :
Tyler D Johnson
Originator :
Tyler D Johnson, Elise Watson, Kenneth Belitz
Metadata Contact :
Tyler D Johnson
USGS Mission Area :
Water Resources
SDC Data Owner :
California Water Science Center
Distributor :
U.S. Geological Survey - ScienceBase
Publisher :
U.S. Geological Survey

Attached Files

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Shapefile: GAMA_PBP_Grids.zip
GAMA_PBP_Grids.CPG 5 Bytes
GAMA_PBP_Grids.dbf 809.25 KB
GAMA_PBP_Grids.met 29.1 KB
GAMA_PBP_Grids.prj 445 Bytes
GAMA_PBP_Grids.sbn 21.88 KB
GAMA_PBP_Grids.sbx 1.44 KB
GAMA_PBP_Grids.shp 11.77 MB
GAMA_PBP_Grids.shx 16.78 KB
GAMA_PBP_Grids.shp.xml
Original FGDC Metadata

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32.27 KB

Purpose

This digital data set was created as part of the study design for a statewide, comprehensive ground-water monitoring and assessment program (Belitz and others, 2003; 2015; California State Water Resources Control Board, 2003). This data set contains grid cells that are spatially distributed across study areas, providing a basis for equal area sampling of selected groundwater basins. These study area grids were used in Belitz and others (2015); this Data Release provides them as a GIS dataset.

Map

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ScienceBase WMS

ScienceBase WFS

Communities

  • USGS California Water Science Center
  • USGS Data Release Products

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Additional Information

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Type Scheme Key
DOI https://www.sciencebase.gov/vocab/category/item/identifier doi:10.5066/F79Z93CN

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