Jump to main content or area navigation.

Contact Us

Water: Wastewater Management Process

Clean Water Indian Set-Aside Grant Program


The Clean Water Indian Set-Aside Grant Program (CWISA Program) provides funding for wastewater infrastructure to Indian tribes and Alaska Native Villages. The CWISA Program is administered in cooperation with the Indian Health Service (IHS). EPA uses the IHS Sanitation Deficiency System priority lists to identify and select projects for CWISA program funding. To be considered for CWISA Program funding, tribes must identify their wastewater needs to the IHS Sanitation Deficiency System.

The Answers to Frequently Asked Questions about the Clean Water Indian Set-Aside Grant Program (PDF) (20 pp, 3MB, About PDF) brochure provides answers to questions related to the CWISA Program, including project eligibility, funding, and project administration.


CWISA 2013 infographic

 Clean Water Indian Set-Aside Program Infographic 2013

Image of the first page of the CWISA Annual Report 2013

Clean Water Indian Set Aside Grant Program Annual Report 2013 (PDF) (2 pp, 473K, About PDF)

Clean Water Indian Set Aside Grant Program Annual Report 2012 (PDF) (7 pp, 5.9MB, About PDF)

SepticSmart Homeowner's Guide for Tribal Communities (9 pp, 2.4MB, About PDF)

Program Guidelines

Training and Resources

EPA's Water & Wastewater Utility Operation and Maintenance Training for Small, Rural Systems - To serve as a resource for small, rural water and wastewater systems including those operated by tribes, Alaska Native Villages, and territories, EPA has developed a series of Web-based training modules on maintaining and operating small wastewater and drinking water treatment systems. This information is geared toward system operators and managers in Indian country, and could benefit anyone operating and maintaining a small water or wastewater system.

The Tribal Resource Directory for Drinking Water and Wastewater Treatment is a catalog of over thirty federal and non-federal programs that offer funding and technical support for tribal drinking water and wastewater systems. The directory was first published in 2006 and the online information was updated in 2012.

The Tribal Infrastructure Task Force (ITF) is led by EPA's Office of Wastewater Management and aims to improve access to safe drinking water, basic sanitation, and solid waste management in Indian country. In 2000, the United States made commitments at the World Summit on Sustainable Development and agreed to support the United Nations Millennium Development Goal to improve access to safe drinking water and basic sanitation around the world.

Funding History

The Clean Water Act authorized CWISA program funding via one-half of one percent (0.5%) from the Construction Grants Program appropriations for fiscal years 1987-1990. In 1992, Congress gave the Administrator of EPA the authority to take a 0.5% set-aside from the Clean Water Act Title VI (State Revolving Fund) appropriation due to the phase-out of the Construction Grants Program.

Starting in FY 2001, Congress has authorized, through EPA’s Appropriations Bill, an increase in the percent of funds set-aside (from 0.5% to 1.5%) from the Clean Water State Revolving Fund appropriated amount to the CWISA Grant Program. Since 2008 Congress has authorized, through EPA's Appropriations Bill, an increase in the percent of funds set-aside from 1.5% to 2.0%. The CWISA Program Funding table summarizes program funding amounts and number of projects funded between 1987 and 2014.

Program Contacts


Jump to main content.