Sole Source
Aquifer Protection Program
Sole Source Aquifer designations are one tool to protect drinking water
supplies in areas with few or no alternative sources to the ground water
resource, and where if contamination occurred, using an alternative source
would be extremely expensive. The designation protects an area's ground
water resource by requiring U.S Environmental Protection Agency (EPA)
review of any proposed projects within the designated area that are receiving
federal financial assistance. All proposed projects receiving federal
funds are subject to review to ensure they do not endanger the water source.
To learn more about the 73 existing Designated Sole Source Aquifers,
visit the Sole Source Aquifer Designation
Map, which provides regional contacts, federal register numbers,
and maps, when available, for each designated aquifer.
If you are interested in petitioning the EPA to make a designation, please
consult the Sole Source Aquifer Program
Petitioner's Guidance or contact the EPA Sole Source Aquifer Coordinator
in your region (listed with the Designation Map).
Source Water Protection
Case Studies for systems utlizing Sole Source Aquifers are available.
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water protection page
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