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Water Pollution Control State, Interstate, and Tribal Program Support is sponsored by ENVIRONMENTAL PROTECTION AGENCY. To assist States (including territories and the District of Columbia), Indian Tribes qualified under CWA Section 518(e), and interstate agencies in establishing and maintaining adequate measures for prevention and control of surface and ground water pollution from both point and nonpoint sources.
States and Tribes will continue to focus on fulfilling their basic responsibilities under the CWA Section 106 funded programs, such as: (1) implementing monitoring strategies and the statistically-valid surveys to determine water quality status and trends; (2) fostering a watershed approach, including total maximum daily loads (TMDLs) and watershed plans designed to meet water quality standards; (3) implementing National Pollutant Discharge Elimination System (NPDES) permitting programs; and 4) States and Tribes will continue adopting updated water quality standards that support designated uses and completing triennial reviews on time. States NPDES Programs will continue to: (1) ensure the integrity of the program; (2) achieve and measure environmental results; and (3) incorporate efficiencies in permitting program operations. States will also conduct source water protection actions to protect both ground water and surface waters used for drinking water. Tribes will continue to conduct watershed assessments and will maintain and improve their capacity to implement water quality programs through monitoring, assessments, planning, data management and standards development. This listing is currently active. Program number: 66.419. Last updated on 2024-11-18.
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Or search similar grants →According to the current listing, eligibility includes: Eligible entities include States (including the District of Columbia and territories), interstate water pollution control agencies as defined in the Federal Water Pollution Control Act, and Indian tribes qualified under CWA Section 518(e). Requirements of the program are based on Section 106 of the Clean Water Act, 2 CFR 200 and 1500 as applicable, and 40 CFR Parts 35 and 130. Eligible applicant types include: State, Federally Recognized lndian Tribal Governments, U.S. Territories and possessions, Interstate. Confirm the full requirements in the official notice before applying.
The current listing shows recent federal obligations suggest $288,720,000 (2025). Verify award ceilings, matching requirements, and allowable costs in the official notice.
Yes — Water Pollution Control State, Interstate, and Tribal Program Support is offered by ENVIRONMENTAL PROTECTION AGENCY and this listing comes from SAM.gov, an official U.S. federal source. Federal applications generally require registrations (for example SAM.gov or an agency submission portal), so allow extra lead time.
This opportunity targets applicants in District of Columbia. If your organization operates elsewhere, check the official notice for location requirements.
Start from the official opportunity page linked in this listing — it carries the sponsor's submission instructions.
Past winners and funding trends for this program
Geographic Programs - Gulf of America Program is sponsored by ENVIRONMENTAL PROTECTION AGENCY. The objectives of the Gulf of America Program, housed within the Gulf of America Division (GAD), are (1) To assist States, Indian Tribes, interstate agencies, and other public or nonprofit organizations in developing and demonstrating innovative approaches relating to the causes, effects, extent, prevention, reduction, and elimination of water pollution; and (2) To expand and strengthen cooperative efforts to restore and protect the health and productivity of the Gulf of America through research, studies, experiments, and training, in ways consistent with the economic well-being of the region. In Fiscal Year 2026 priorities include projects that will: 1) deliver significant results to achieve the environmental outcomes of improved health of the Gulf of America by restoring, protecting and enhancing habitat, improving water quality, improving the region’s ability to withstand storm events, and furthering environmental awareness; and 2) assisting communities adversely affected by environmental and human health harms or risks. Through the Infrastructure Investment and Jobs Act (IIJA) funding, the GAD will also prioritize projects focused on water quality, ecosystem and wetland restoration, stormwater treatment and control, nature-based infrastructure, restoration due to storm events, resilient shorelines, and environmental awareness. This listing is currently active. Program number: 66.475. Last updated on 2026-01-13.
Pollution Prevention Grants Program is sponsored by ENVIRONMENTAL PROTECTION AGENCY. The P2 grant program was enacted under the Pollution Prevention Act of 1990 to 1) Provide technical assistance (e.g., information, training and tools) to businesses/facilities on source reduction/P2 techniques to help them adopt and implement source reduction/P2 approaches that may increase the development, adoption, and market penetration of sustainable manufacturing and processing practices and greener products. 2) Identify, develop, document, and share source reduction/P2 best management practices and innovations so the information generated may inform future technical assistance and encourage practices and innovations that may be replicated by others. The technical assistance provided must use P2/source reduction techniques to reduce and/or eliminate pollution from air, water, and/or land prior to performing recycling, reuse, clean up, or disposal activities. The P2 grant program funds may be awarded as grants and/or cooperative agreements. Funding provided by the Infrastructure Investment and Job Act (IIJA) for FY2022-2026 affords the P2 program the ability to further support P2 technical assistance to businesses. Updated information on these programs is on EPA’s Grant Program for Pollution Prevention website: https://www.epa.gov/p2/grant-programs-pollution-prevention. In FY 2026, the P2 will continue to: 1. Help businesses adopt P2 techniques into day-to-day operations to reduce or eliminate harmful pollutants from entering the air, water, or land 2. Encourage education and/or training in P2/source reduction techniques. 3. Support P2 information sharing among states, state and federally-recognized tribal entities (e.g., state/tribal colleges/universities), federally-recognized tribes, local technical assistance programs, businesses, and industry. Additional funding priorities are found in the Notice of Funding Opportunity (NOFO) specific to each P2 grant program. This listing is currently active. Program number: 66.708. Last updated on 2026-01-08.
EPA's Innovative Water Infrastructure Workforce Development competition closes October 5, 2026. The agency says up to 15 awards across four project areas, but Project Area 1 alone carries a $7.8 million ceiling against a $10.8 million pot. That tension is the single most important strategic fact in the NOFO — here is how to read it, which lane is least competed, and what a three-week runway means for your submission.
Read articleEPA announced $3.5 million in competitive Clean Water Act Section 319 funding for Tribes on September 10, 2026, with a $175,000 per-applicant cap and roughly 20 awards. Applications close November 9, 2026. But eligibility was frozen as of October 10, 2025, and every application must contain an on-the-ground BMP project traceable to an approved management program. Here is how the gates actually work.
Read articleThe FY2026 Innovative Water Infrastructure Workforce Development Grant (EPA-OW-OWM-26-03) closes October 5, 2026 with $10.8 million, up to 15 cooperative agreements, and a Project Area 1 ceiling of $7.8 million. One maximum award would consume 72 percent of the pool. Here is how the four project areas actually partition the money, why the grants.gov award floor field is wrong, and why September 14 is the date that matters more than October 5.
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