Assistance to State Water Resources Research Institutes

Active

Assistance listing
15.805
Agency
Grant awards
849 $241,396,381 in federal obligations

Program facts

Also known as
(Water Research Institute Program) WRRA
Assistance types
  • Project Grant
  • Cooperative Agreement
  • Formula Grant
Treasury account
  • 14-0804-0-1-306
More information

Program details come from SAM.gov Assistance Listings. Updated . Grant award figures come from USAspending.gov.

About this program

The U.S. Geological Survey operates the Assistance to State Water Resources Research Institutes program (CFDA 15.805) in partnership with designated Water Resources Research Institutes at universities in all 50 states and U.S. territories, with the most recent grant award made on September 15, 2025.

The program funds applied water resources research through a federal-state partnership structure. Recent awards across the portfolio support watershed modeling improvements (including SWAT model updates for nutrient cycling in freeze-thaw regions), AI-driven hydrologic analysis platforms integrating real-time water data for agricultural and urban decision-making, aquatic invasive species monitoring via environmental DNA and machine-learning prediction tools, per- and polyfluoroalkyl substances (PFAS) bioaccumulation and fate studies in fish and wetland ecosystems, flood risk assessment and forecasting under climate change, nitrate contamination transport in agricultural groundwater, evapotranspiration mapping for consumptive water use estimation, and remote sensing applications for early detection of aquatic invasive plants.

Over the past five years, the program disbursed 192 awards averaging approximately 38 per year, with the most recent data point at 25 awards in 2025 (through September). Combined federal dollars obligated across 849 historical awards total $241.4 million, with recipients contributing an additional $142.7 million in non-federal cost share. Project Grants dominate the assistance-type distribution at 79 percent of awards, followed by Cooperative Agreements at 14 percent and Formula Grants at 7 percent. The U.S. Geological Survey Office of Acquisitions and Grants has obligated $135.5 million across 306 awards, while the broader USGS has obligated $105.9 million across 542 awards.

Representative recent awards include: AI-driven hydrologic analysis for Iowa water management ($485,717 Project Grant, June 2025); PFAS fingerprinting in Columbia River fish tissues ($619,292 Project Grant, February 2025); invasive zebra mussel genomic surveillance ($695,948 Project Grant, January 2025); SWAT watershed model code updates integrating phosphorus dynamics ($84,955 Cooperative Agreement, September 2025); and OpenET evapotranspiration mapping software development ($1.3 million Cooperative Agreement, January 2025).

Four active competitive solicitations are currently open: FY2026 national competitive grants (104g general track, due November 12, 2026, G27AS00164); FY2026 non-competitive coordination awards for designated institutes (due September 30, 2026, G26AS00110). Earlier opportunities posted in August 2025 for FY2025 national competitive grants in general research (G25AS00485), PFAS (G25AS00484), and aquatic invasive species (G25AS00483), and FY2025 base formula grants to institutes (G25AS00486) closed on September 16 and September 30, 2025. Eligibility is restricted to Water Resources Research Institutes established under the Water Resources Research Act of 1984 at designated universities. Research involving human subjects, oceanography, or unmet prior reporting requirements is ineligible.

Objective and description

Objective

To provide financial support to Water Resources Research Institutes located at designated State universities in each of the 50 States, Puerto Rico, the District of Columbia, Guam, the Virgin Islands, American Samoa, the Commonwealth of the Northern M

Description

The Water Resources Research Act established a federal-state partnership to support water research, technology transfer and training through each state- or territory-based research institutes. The USGS Water Resources Research Act program works directly with each designated Water Resource Research Institute in each U.S. State and Territory.

Eligibility

Applicant eligibility

One University Water Research Institute is authorized in each State and other jurisdictions specified in Section 104. Other colleges and universities within a State are encouraged to participate in the program in cooperation with the designated Institute.

Beneficiary eligibility

Researchers at qualified universities and colleges in the State through the designated Institute for the State.

Uses of assistance

This program has two parts: a mandatory formula grant program and a competitive project grant program. The mandatory grant program provides the State Institutes with funds to support a State and regional program of water resources research and information transfer. This may include basic or applied research, setting up conferences to discuss research needs or results, conduct of research, information dissemination, and training of students as a byproduct of research. In general the funds are used to study regional, State, or local water problems, but the results may often have national significance. The competitive project grant program supports research focused on water problems of a regional or interstate nature and which relate to program priorities identified jointly by the State Institutes and the Geological Survey. Federal funds cannot be used for (1) formal instructional activities and general education, and (2) the cost of permanent buildings, either directly or indirectly.

Length and time phasing of assistance

Program obligates funds and sends a notice of award to successful applicants. Recipients request funds in accordance with 2 CFR 200, Subpart E-Cost Principles, unless otherwise dictated by program-specific legislation or special award terms.

How to apply

Preapplication coordination

Formula Grant Program: Requires each Institute to collaborate with State interests in defining research priorities and to coordinate with other Institutes in the region to avoid duplication of effort. Competitive Grant Program: Requires that the Institutes collectively collaborate with the Geological Survey in setting research priorities.

Criteria for selecting proposals

Competitive Grant Program: Relevance to announced priorities, technical merit, prospects of attaining objectives in period specified and potential for student training.

Award procedure

Formula Grant Program: Geological Survey approves or rejects, in part or as a whole, the program submitted by each State Institute. The State Institutes are notified of any amendments necessary to obtain Geological Survey approval. Competitive Grant Program: Geological Survey conducts a formal review and selection procedure and approves or reject applications as a whole. Notification of an award is by receipt of a grant or cooperative agreement from a U.S. Geological Survey contracting officer.

Deadlines

RFPs for Base Grants and the nationally competitive proposals have not yet been posted to Grant.gov as of June 26, 2025 pending Notice of Funding Opportunity review and approval for all four NOFOs (104b, 104g, PFAS, AIS).

Time to approval or disapproval

90 days.

Appeals

Formula Grant Program: Deficiencies noted by the Geological Survey can normally be corrected by the State Institutes. Competitive Grant Program: None.

Grant opportunities

Opportunity Status Posted Applications due
WATER RESOURCES RESEARCH ACT PROGRAM NATIONAL COMPETITIVE GRANTS FY2026 (104g General) G27AS00164 Open
FY2026 Water Resources Research Act Non-Competitive Coordination G26AS00110 Closed
WATER RESOURCES RESEARCH ACT PROGRAM NATIONAL COMPETITIVE GRANTS FY2025 PROGRAM ANNOUNCEMENT For AQUATIC INVASIVE SPECIES G25AS00483 Closed
WATER RESOURCES RESEARCH ACT PROGRAM NATIONAL COMPETITIVE GRANTS FY2025 (104g General) G25AS00485 Closed
WATER RESOURCES RESEARCH ACT PROGRAM NATIONAL COMPETITIVE GRANTS FY2025 PROGRAM ANNOUNCEMENT For PER - AND POLYFLUOROALKYL SUBSTANCES (PFAS) G25AS00484 Closed
Water resources research act program annual base grants fiscal year 2025 G25AS00486 Closed
WATER RESOURCES RESEARCH ACT PROGRAM NATIONAL COMPETITIVE GRANTS FY2024 (104g General) G24AS00536 Closed
WATER RESOURCES RESEARCH ACT PROGRAM NATIONAL COMPETITIVE GRANTS FY2024 PROGRAM ANNOUNCEMENT For PER - AND POLYFLUOROALKYL SUBSTANCES (PFAS) G24AS00535 Closed
WATER RESOURCES RESEARCH ACT PROGRAM NATIONAL COMPETITIVE GRANTS FY2024 PROGRAM ANNOUNCEMENT For AQUATIC INVASIVE SPECIES G24AS00534 Closed
Water resources research act program annual base grants fiscal year 2024 G24AS00537 Closed
FY2024 Water Resources Research Act Non-Competitive Coordination G24AS00510 Closed
Water resources research act program annual base grants fiscal year 2023 request for applications G23AS00486 Closed
WATER RESOURCES RESEARCH ACT PROGRAM NATIONAL COMPETITIVE GRANTS FY2023 PROGRAM ANNOUNCEMENT For AQUATIC INVASIVE SPECIES G23AS00483 Closed
WATER RESOURCES RESEARCH ACT PROGRAM NATIONAL COMPETITIVE GRANTS FY2023 PROGRAM ANNOUNCEMENT For PER - AND POLYFLUOROALKYL SUBSTANCES (PFAS) G23AS00484 Closed
WATER RESOURCES RESEARCH ACT PROGRAM NATIONAL COMPETITIVE GRANTS FY2023 PROGRAM ANNOUNCEMENT (104g General) G23AS00485 Closed
WATER RESOURCES RESEARCH ACT PROGRAM NATIONAL COMPETITIVE GRANTS FY2022 PROGRAM ANNOUNCEMENT For AQUATIC INVASIVE SPECIES G22AS00255 Closed
WATER RESOURCES RESEARCH ACT PROGRAM NATIONAL COMPETITIVE GRANTS FY2022 PROGRAM ANNOUNCEMENT For PER - AND POLYFLUOROALKYL SUBSTANCES (PFAS) G22AS00256 Closed
WATER RESOURCES RESEARCH ACT PROGRAM NATIONAL COMPETITIVE GRANTS FY2022 PROGRAM ANNOUNCEMENT (104g General) G22AS00641 Closed
Water resources research act program annual base grants fiscal year 2022 request for applications G22AS00237 Closed
Water resources research act program national competitive grants FY2021 program announcement G21AS00518 Closed
Water resources research act program aquatic invasive species competitive grants FY2021 program announcement G21AS00520 Closed
Water resources research act program annual base grants fiscal year 2021 request for applications G21AS00517 Closed
Water resources research act program: per-and polyflouroalkyl (PFAS) substances competitive grants FY2021 program announcement G21AS00521 Closed
Water Resources Research Aquatic Invasive Species Competitive Grants Program G20AS00069 Closed
Water Resources Research National Competitive Grants Program G20AS00026 Closed
WRRI 104b Annual Grant Program G20AS00025 Closed
WRRI 104b Annual Grant Program G19AS00039 Closed
Water Resources Research National Competitive Grants Program G19AS00040 Closed
Water Resources Research National Competitive Grants Program G18AS00009 Closed
Water Resources Research National Competitive Grants Program G17AS00027 Closed
Water Resources Research National Competitive Grants Program G16AS00016 Closed
Water Resources Research National Competitive Grants Program G15AS00019 Closed
Water Resources Research National Competitive Grants Program G13AS00009 Closed
Water Resources Research National Competitive Grants Program G12AS20005 Closed
Show all 34

Grant awards

Award Recipient Federal obligations Awarded
SWAT watershed model code updatesproject period: 9 15 2025 through 9 14 2027AWARD purpose: hydrologic and water quality… G25AC00472 University Of Wisconsin System $84,955
AI-driven hydrologic analysis and communication hub for enhanced water resource management in iowaproject period: 6… G25AP00137 Iowa State University Of Science And Technology $242,790
Predicting invasive species spread by integrating big data on the environment and species-occurrence using… G25AP00158 Montana State University $130,750
From source to receptor: PFAS fingerprints of afff, water, and afff-impacted fishproject period: 02 04 2025 through… G25AP00169 Oregon State University $309,646
Title: vulnerability to drought and wildfire and risk aversion impacts on decisions 3 2 project abstract summary… G25AP00135 Texas A&M Agrilife Research $310,000
Full title: next-generation monitoring: satellite remote sensing and edna integration for the early detection and… G25AP00157 Oklahoma State University $344,527
Development and enhancement of openet software tools, datasets, and planningproject period: 1 17 2025 through 1 16… G25AC00180 Nevada System Of Higher Education $1,300,000
The effects of PFAS loading on biogeochemical cycling, fate, and transport in wetlandsproject period: 1 16 2025 through… G25AP00172 The University Of Kentucky Research Foundation $309,908
Title: research and development of synthetic river bathymetry generation and large-scale flood susceptibility… G25AC00128 Purdue University $165,000
Project title elucidating the health impacts of per and polyfluoroalkyl substances PFAS on an apex bird predator in the… G25AP00170 University Of Wisconsin System $310,000

Latest 10 of 849 listed here. See the rest on GovTribe.

Top recipients by federal obligations

Rank Recipient Federal obligations Share
1 University Of Massachusetts $10,652,930 4%
2 Clemson University $9,778,686 4%
3 University Of Illinois $8,385,214 3%
4 University Of Wisconsin System $6,191,103 3%
5 Regents Of The University Of Minnesota $5,703,685 2%
6 Purdue University $5,409,678 2%
7 Nevada System Of Higher Education $5,310,269 2%
8 University Of Guam $4,803,423 2%
9 New Mexico State University $4,667,289 2%
10 University Of California, Santa Barbara $4,662,110 2%

10 of 62 recipients listed here. See the rest on GovTribe.

Federal obligations by fiscal year

Fiscal year Federal obligations
FY2026 $8,323,725
FY2025 $8,228,617
FY2024 $18,521,280
FY2023 $18,206,879
FY2022 $12,687,152
FY2021 $11,427,929
FY2020 $9,267,697
FY2019 $8,864,822
FY2018 $7,757,679
FY2017 $24,070,349
FY2016 $7,467,622
FY2015 $7,789,336
FY2014 $7,637,090
FY2013 $5,888,255
FY2012 $9,368,039
FY2011 $10,392,058
FY2010 $910,858
FY2009 $10,794,042
FY2008 $8,266,815
FY2007 $8,112,906
FY2006 $8,221,253
FY2005 $7,632,728
FY2004 $7,598,602
FY2003 $4,204,432
FY2002 $4,996,133
FY2001 $5,267,380
Show all 26

Quick answers

What is Assistance Listing 15.805?

Assistance Listing 15.805 is Assistance to State Water Resources Research Institutes, a federal grant program run by US Geological Survey (Department of the Interior).

What is the CFDA number for Assistance to State Water Resources Research Institutes?

Its CFDA number is 15.805: Assistance Listing numbers were called CFDA numbers before 2018.

How much funding has Assistance Listing 15.805 awarded?

849 grant awards under 15.805 have obligated $241,396,381 in federal funds to 62 recipients.

Who receives the most funding from 15.805?

The recipients obligated the most under Assistance to State Water Resources Research Institutes are University Of Massachusetts ($10,652,930), Clemson University ($9,778,686) and University Of Illinois ($8,385,214).

How much did 15.805 obligate in fiscal year 2025?

Grants under 15.805 obligated $8,228,617 in federal funds in fiscal year 2025.

Are there open grant opportunities under 15.805?

1 listed opportunity under 15.805 is open or forecasted. The latest, WATER RESOURCES RESEARCH ACT PROGRAM NATIONAL COMPETITIVE GRANTS FY2026 (104g General), was posted on September 30, 2026.

On GovTribe

See this program's full record

  • Every grant award and opportunity under it
  • Funding by recipient, agency and assistance type
  • Alerts for new opportunities
  • Ask GovTribe AI about this program