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Assistance Listing 15.504

WaterSMART Water Recycling

Department of the Interior · Bureau of Reclamation

Assistance Listing 15.504, “WaterSMART Water Recycling,” is a federal program administered by Department of the Interior. It provides grant assistance. GrantsJunction currently tracks 1 open, 0 forecasted and 8 closed opportunities under this listing. The agency reported $96.7M in obligations for fiscal year 2025.

Program objective

To make funding available for water recycling projects. To develop and supplement urban and irrigation water supplies through water reuse—thereby improving efficiency, providing flexibility during water shortages, and diversifying water supply portfolios. Title XVI of P.L. 102-575, as amended (Title XVI), directs the Secretary of the Interior, acting through the Commissioner, to undertake a program to identify and investigate opportunities to reclaim and reuse wastewaters and impaired ground and surface water in the 17 Western States and Hawaii. Title XVI provides authority for the Secretary to provide up to 25 percent of the cost of planning, design, and construction of water recycling projects, currently up to $40 million unless otherwise specified by Congress, as well as up to 50 percent of the cost of feasibility studies. Section 40905 of the Infrastructure Investment and Jobs Act, P.L. 117-58 provides authority for the Secretary to provide up to 25 percent of the cost of planning, design, and construction of water recycling projects with a total estimate project cost of $500 million or more. Title XVI of P.L. 102-575, as amended (Title XVI), directs the Secretary of the Interior, acting through the Commissioner, to undertake a program to identify and investigate opportunities to reclaim and reuse wastewaters and impaired ground and surface water in the 17 Western States and Hawaii. Title XVI provides authority for the Secretary to provide up to 25 percent of the cost of planning, design, and construction of water recycling projects, currently up to $30 million unless otherwise specified by Congress, as well as up to 50 percent of the cost of feasibility studies. The Water Desalination Act of 1996, as amended by P.L. 114-332 provides authority for the Secretary to provide up to 25 percent of the cost of planning, design, and construction of ocean or brackish water desalination facilities.

As published in the SAM.gov Assistance Listing.

Current opportunities under 15.504

Eligible applicants (program level)

  • Other

Title XVI Water Reclamation and Reuse: state, regional or local authorities, such as: • States, Tribes, municipalities, irrigation districts, and water districts, or wastewater districts • Other organizations with water or power delivery authority. All applicants must be located in one of the following States or territories: Arizona, California, Colorado, Hawaii, Idaho, Kansas, Montana, Nebraska, Nevada, New Mexico, North Dakota, Oklahoma, Oregon, South Dakota, Texas, Utah, Washington, Wyoming, American Samoa, Guam, the Northern Mariana Islands, or the Virgin Islands. Large-Scale Water Recycling: • States, Tribes, municipalities, irrigation districts, water districts, wastewater districts; and any state, regional, or other organization with water or power delivery authority, • State, regional, or local authorities, the members of which include one or more organizations with water or power delivery authority; and • An agency established under State law for the joint exercise of powers, or a combination of entities described above. All applicants must be located in the Western United States; specifically: Arizona, California, Colorado, Idaho, Kansas, Montana, Nebraska, Nevada, New Mexico, North Dakota, Oklahoma, Oregon, South Dakota, Texas, Utah, Washington, and Wyoming.

Intended beneficiaries: Other.

Program-level eligibility from SAM.gov. Each funding notice sets its own requirements.

Reported obligations by fiscal year

Historical data · not a prediction
FY24$203M
FY25$96.7M
FY26$32.4M est.

Range and average of financial assistance (from the listing): $1,000,000 - $99,000,000 Average=$30,000,000

Source: SAM.gov Assistance Listing 15.504. Hatched bars are agency estimates. These totals do not indicate approval rates.

Recently closed under 15.504

Closed opportunities under 15.504
OpportunityStatusAward rangeClosesALN
ClosedUp to $133MJan 31, 202515.504
ClosedUp to $30MSep 30, 202415.504
ClosedUp to $30MSep 30, 202415.504
ClosedUp to $20MSep 30, 202415.504
Closed$100K – $5MFeb 28, 202315.504
ClosedUp to $30MMar 15, 202215.504
ClosedUp to $30MMar 15, 202215.504
ClosedUp to $20MMar 15, 202215.504

Frequently asked questions

What is ALN 15.504?

15.504 is the Assistance Listing Number for “WaterSMART Water Recycling.” Assistance Listing Numbers (formerly CFDA numbers) identify federal assistance programs; individual grant opportunities reference the listing they are funded under.

Who can apply under ALN 15.504?

The SAM.gov listing names these applicant types: Other. Each funding notice under the program sets its own eligibility, so check the specific opportunity.

How much funding does 15.504 provide?

The agency reported $96,714,294 in obligations for FY2025 in the SAM.gov Assistance Listing. These are program-wide totals reported by the agency, not a prediction of future awards.