Water Pollution Control State, Interstate, and Tribal Program Support (66.419)
Water Pollution Control State, Interstate, and Tribal Program Support (Assistance Listing 66.419) is run by the Environmental Protection Agency. It awarded $332 million in 377 grants from fiscal 2021 to 2025, about $879,368 per award on average. No funding opportunity is open on Grants.gov right now.
The typical award was $202,898. Half of the 377 awards fell between $127,000 and $482,602, and they ranged from $8,589 to $49.6 million.
- Awarded, FY 2021 to 2025$332 million
- Grant awards377
- Typical award$202,898
- Awarded in FY 2025$54.2 million
- Size rank470 of 1,823
- Type of assistanceFormula grants
Key findings
- Annual funding fell from $71.1 million in fiscal 2021 to $54.2 million in fiscal 2025.
- It is the 470th largest of 1,823 federal grant programs by five-year awards.
- The 20 largest recipients received 84% of the money.
- Awards went to recipients in 45 states and territories.
What the program funds
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.
Open opportunities
No opportunity under this program is open or forecast on Grants.gov right now. Programs often post once a year, so the funding history below shows what to expect.
Rules from the program listing
Who can apply
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.
What the money can and cannot pay for
Water pollution control grants are intended to provide continuing support for the prevention and abatement of surface and ground water pollution from point and nonpoint sources. Continuing and recurrent water quality management program activities funded include water quality planning and standards; monitoring and assessments; inspections and enforcement; permitting; training; advice and assistance to local agencies; and public information. Funds cannot be used for construction, operation, or maintenance of waste treatment plants, nor can they be used for costs financed by other Federal grants. Assistance agreement awards under this program may involve or relate to geospatial information. Further information regarding geospatial information may be obtained by viewing the following website: Geospatial Resources at EPA.
Matching requirements
This program has no statutory formula. Matching requirements are not applicable to this assistance listing. MOE requirements are not applicable to this assistance listing.
Deadlines
Contact the headquarters or regional location, as appropriate for application deadlines Applications must be submitted according to dates established by the Regional Administrator. Contact the Regional Office for application deadlines.
Award range and average, in the agency's words
Range: $30,000 to $12,100,000/fiscal year; Average: $4,000,000/fiscal year.
Examples of funded projects
Fiscal Year2025: Grants are made to states, interstate agencies, and tribes qualified under CWA Section 518(e), for the administration of state and tribal programs for the prevention, reduction, and control of water pollution. Activities funded include administration of state and tribal water quality planning programs; water quality standards programs; TMDL programs, water quality monitoring and assessments programs; NPDES permitting programs; compliance and enforcement programs, and ground water protection programs. More specifically, adoption and implementation of comprehensive monitoring strategies, as stated in the March 2003 Elements of a State Water Monitoring and Assessment Guidance, and the development of statistically valid monitoring networks to help target activities and determine water quality status and trends; adoption of updated standards that support designated uses; enhancement of the quality and timeliness of state/tribal water quality standards triennial reviews so that standards are based on sound science; effective management of the NPDES permit program through State efforts to (1) ensure the integrity of the program; (2) achieve and measure environmental results; and (3) incorporate efficiencies in permitting program operations.
Funding history and past recipients
From fiscal 2021 to 2025, Water Pollution Control State, Interstate, and Tribal Program Support (66.419) awarded $332 million across 377 grant awards, an average of $879,368 per award.
Who usually wins
State and local governments received 84% of the money, tribes 8.0% and colleges and universities less than 0.1%.
| Recipient type | Awards | Amount | Share |
|---|---|---|---|
| State and local governments | 193 | $277 million | 84% |
| Other | 23 | $27.3 million | 8.2% |
| Tribal governments and organizations | 159 | $26.6 million | 8.0% |
| Colleges and universities | 2 | $183,345 | less than 0.1% |
By state
37 states have a page for this program: those that received at least $1 million or 10 awards.
| State | Awards | Amount |
|---|---|---|
| California | 39 | $68.8 million |
| Ohio | 14 | $34.5 million |
| Pennsylvania | 8 | $33.2 million |
| North Carolina | 12 | $31.9 million |
| Oklahoma | 47 | $19.0 million |
| Texas | 12 | $16.8 million |
| New Mexico | 40 | $12.7 million |
| Hawaii | 7 | $11.7 million |
| Arkansas | 10 | $11.3 million |
| West Virginia | 3 | $10.2 million |
| Idaho | 11 | $8.3 million |
| Delaware | 5 | $7.6 million |
| Nevada | 18 | $7.5 million |
| Massachusetts | 3 | $6.5 million |
| District of Columbia | 3 | $6.2 million |
| New York | 5 | $3.7 million |
| New Jersey | 3 | $3.3 million |
| Maryland | 3 | $3.2 million |
| Arizona | 14 | $3.2 million |
| Wisconsin | 10 | $3.1 million |
| Minnesota | 10 | $2.6 million |
| Washington | 5 | $1.9 million |
| Utah | 6 | $1.9 million |
| North Dakota | 4 | $1.7 million |
| South Dakota | 5 | $1.5 million |
| Nebraska | 5 | $1.5 million |
| Florida | 6 | $1.4 million |
| Missouri | 4 | $1.3 million |
| Louisiana | 6 | $1.3 million |
| Iowa | 4 | $1.3 million |
| Georgia | 6 | $1.2 million |
| Kansas | 4 | $1.2 million |
| Wyoming | 3 | $1.1 million |
| South Carolina | 7 | $1.1 million |
| Indiana | 5 | $1.1 million |
| Illinois | 4 | $1.0 million |
| Michigan | 4 | $1.0 million |
| Mississippi | 5 | $847,989 |
| Kentucky | 5 | $832,784 |
| Tennessee | 3 | $679,714 |
| Montana | 3 | $672,418 |
| Colorado | 2 | $649,710 |
| Alaska | 2 | $563,880 |
| Alabama | 1 | $157,150 |
| Virginia | 1 | $109,000 |