Clean Water Indian Set-Aside Grant Program

The Environmental Protection Agency (EPA) manages a grant program for the construction of wastewater treatment facilities for Indian tribes, Alaska Native Villages (ANVs), and tribes on former reservations in Oklahoma. The program is called the Clean Water Indian Set-Aside (ISA) Grant Program. Section 518(c) of the 1987 Amendments to the Clean Water Act established the program and authorized EPA to administer grants in cooperation with the Indian Health Service (IHS). This partnership maximizes the technical resources available through both agencies to address tribal sanitation needs. The ISA Program uses IHS's Sanitation Deficiency System (SDS) to identify high priority wastewater projects for funding.

Click to access table on CW ISA Grant Program Funding.

Maps of CWA ISA Grant Projects

This map shows the locations of all federally-recognized tribes and ANVs. Tribes that have received CWA ISA grants are shown in red, while all other federally-recognized tribes are shown in green. As the map shows, the majority of this program's grant funding has gone to address the needs of tribes in EPA Region 9 and ANVs and tribes in Region 10.

Click on the map to enlarge it, or click here to download a PDF version of the map.

Another way to look at the CWA ISA Grant Program is on a watershed basis. This map shows the locations of all federally-recognized tribes and ANVs, and their surrounding watersheds. It also shows tribes and ANVs with CWA ISA grant funding (red) and those without CWA ISA grant funding (green). The blue areas indicate which watersheds (as represented by 8-digit hydrologic unit codes (HUCs)) are within tribal boundaries. Of the 4,232 watersheds represented on this map, 540 or 13 percent, have tribes in them.

To obtain more information about the CW ISA Program, please contact the EPA Regional CW ISA Coordinators or go to our Publications or Related Links page.

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