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SOLE SOURCE AQUIFER BOUNDARY DATA
Description:
There are 7 polygons representing 6 individual sole source aquifer boundaries and one streamflow source area in California, Arizona, and Nevada. Various efforts were combined to create the final product, which represents the Federal Register boundary description. Sole source aquifers are jurisdictional areas, so their boundaries are sometimes political rather than natural. A sole source aquifer is an area for which the ground water has been determined to be the only source of drinking water. Projects which receive federal grants or loan guarantees that are found to be within a sole source aquifer are reviewed to assess whether they have the potential to contaminate the ground water. If this potential exists the sole source aquifer program can deny federal funding until the project is modified.