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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.
Application snapshot: target deadline rolling deadlines or periodic funding windows; published funding information Recent federal obligations suggest $288,720,000 (2025).; eligibility guidance 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.
Use the official notice and source links for final requirements, attachment checklists, allowable costs, and submission instructions before applying.
Based on current listing details, 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. Applicants should confirm final requirements in the official notice before submission.
Current published award information indicates Recent federal obligations suggest $288,720,000 (2025). Always verify allowable costs, matching requirements, and funding caps directly in the sponsor documentation.
The current target date is rolling deadlines or periodic funding windows. Build your timeline backwards from this date to cover registrations, approvals, attachments, and final submission checks.
Indian Environmental General Assistance Program (GAP) is sponsored by U.S. Environmental Protection Agency. GAP provides tribes with resources to build environmental capacity, including developing water quality monitoring programs and deploying sensor networks to track pollutants on tribal lands. Application snapshot: target deadline February 13, 2026; published funding information $100,000 - $184,000; eligibility guidance Federally recognized Indian tribal governments and intertribal consortia. Use the official notice and source links for final requirements, attachment checklists, allowable costs, and submission instructions before applying.
Science to Achieve Results (STAR) Research Grants: PFAS is sponsored by U.S. Environmental Protection Agency. Funds research on PFAS detection, health effects, and treatment in water, open to academic institutions including tribal colleges. Application snapshot: target deadline February 28, 2026; published funding information $750,000 - $1,500,000; eligibility guidance Universities, tribal colleges, nonprofits, research institutions Use the official notice and source links for final requirements, attachment checklists, allowable costs, and submission instructions before applying.
Solar for All is sponsored by U.S. Environmental Protection Agency (EPA). Program providing equitable access to solar energy, supporting community-led solar projects for energy justice and climate resilience; applications reviewed twice annually. Application snapshot: target deadline March 1, 2026; published funding information Varies; eligibility guidance Nonprofits, Tribes, community organizations with charitable status Use the official notice and source links for final requirements, attachment checklists, allowable costs, and submission instructions before applying.
