Government Water Supply and Irrigation Systems Contracts
NAICS 221310 · Water Supply and Irrigation Systems
Government water supply and irrigation systems contracts totaled $1.9B across 2,708 awards from FY2024 to FY2026. Obligations were down 26.8% in FY2026 compared with FY2025, and the Department of Defense was the largest buyer, accounting for $1.6B (85% of the total).
Key figures
In FY2026, contract obligations were $544,364,054 across 1,161 awards with activity that year, a change of -26.8% from $743,390,137 in FY2025. From FY2024 to FY2026, obligations totaled $1,907,456,720 across 2,708 awards.
- Obligated in FY2026
- $544M
- Awards in FY2026
- 1,161
- Change vs FY2025
- -26.8%
- Total, FY2024 to FY2026
- $1.9B
Note: FY2026 ended on Sep 30, 2026. The Department of Defense publishes contract data with a 90-day delay, so FY2026 totals may still rise as late reports arrive.
Water Supply and Irrigation Systems contract spending by year
Federal water supply and irrigation systems contracts per fiscal year (October to September), under NAICS 221310. The table below lists the same numbers.
| Fiscal year | Obligated | Awards | Change |
|---|---|---|---|
| FY2026 | $544,364,054 | 1,161 | -26.8% |
| FY2025 | $743,390,137 | 1,437 | +20% |
| FY2024 | $619,702,530 | 1,449 | n/a |
About government water supply and irrigation systems contracts
Federal spending on water supply and irrigation systems contracts fell 12% from FY2024 ($620M) to FY2026 ($544M), peaking in FY2025. FY2026 closed recently, and Defense Department contracts are reported up to 90 days late, so its total may still rise.
Spending is spread widely: the top 3 contractors account for 34% of the total. No single company dominates, which leaves room for new and small contractors.
The Department of Defense spends the most on water supply and irrigation systems contracts (85%), followed by the Department of Justice. The states with the most of this work are Texas, North Carolina and California.
NAICS 221310 (Water Supply and Irrigation Systems) is part of the Utilities sector.
Top water supply and irrigation systems government contractors
Companies ranked by contract dollars under NAICS 221310 (Water Supply and Irrigation Systems).
| # | Contractor | Obligated | Share |
|---|---|---|---|
| 1 | American Water Operations and Maintenance, LLC | $405,140,288 | 21.2% |
| 2 | American Water Military Services, LLC | $135,745,576 | 7.1% |
| 3 | Old North Utility Services, Inc. | $111,657,382 | 5.9% |
| 4 | CH2M Hill Constructors, Inc. | $101,554,011 | 5.3% |
| 5 | Oklahoma City Water Utilities Trust | $91,286,044 | 4.8% |
| 6 | Fort Bliss Water Services Company | $72,148,986 | 3.8% |
| 7 | Fort Riley Utility Services, Inc. | $59,494,814 | 3.1% |
| 8 | Emerald Coast Utility Services Inc | $59,467,146 | 3.1% |
| 9 | Washington Suburban Sanitary Commission | $55,888,196 | 2.9% |
| 10 | Augusta-Richmond County Government | $49,396,624 | 2.6% |
Agencies buying water supply and irrigation systems services
Federal agencies ranked by contract dollars under NAICS 221310.
| # | Agency | Obligated | Share |
|---|---|---|---|
| 1 | Department of Defense | $1,620,746,337 | 85.0% |
| 2 | Department of Justice | $61,406,898 | 3.2% |
| 3 | Department of Health and Human Services | $55,444,523 | 2.9% |
| 4 | Department of Veterans Affairs | $55,342,133 | 2.9% |
| 5 | Department of State | $30,250,701 | 1.6% |
| 6 | National Aeronautics and Space Administration | $28,383,722 | 1.5% |
| 7 | Department of the Interior | $26,788,149 | 1.4% |
| 8 | Department of Agriculture | $7,343,157 | 0.4% |
| 9 | Department of the Treasury | $5,064,398 | 0.3% |
| 10 | Department of Homeland Security | $4,076,932 | 0.2% |
Where water supply and irrigation systems contract work is performed
States ranked by contract dollars, using the place of performance on each award.
| # | State | Obligated | Share |
|---|---|---|---|
| 1 | Texas | $225,853,752 | 11.8% |
| 2 | North Carolina | $209,319,779 | 11.0% |
| 3 | California | $150,555,933 | 7.9% |
| 4 | Maryland | $139,070,603 | 7.3% |
| 5 | Oklahoma | $125,477,097 | 6.6% |
| 6 | Florida | $102,824,812 | 5.4% |
| 7 | Washington | $85,499,682 | 4.5% |
| 8 | Louisiana | $68,716,610 | 3.6% |
| 9 | Ohio | $65,981,012 | 3.5% |
| 10 | Kansas | $63,358,491 | 3.3% |
Recent water supply and irrigation systems contract awards
The latest water supply and irrigation systems contracts, newest first. Each award ID links to its record on USAspending.gov.
| Start date | Recipient | Agency and description | Amount | Record |
|---|---|---|---|---|
| Sep 30, 2026 | Water & Energy Systems Technology, Inc | Department of Veterans AffairsWATER SYSTEM CHEMICAL TREATMENT SERVICES - BASE YEAR | $146,380 | 36C25926P0801 |
| Sep 30, 2026 | Absolute Water Technologies L.l.c. | Department of Veterans AffairsSTERILE PROCESSING REVERSE OSMOSIS EQUIPMENT | $64,400 | 36C25026P1174 |
| Sep 30, 2026 | Miscellaneous Foreign Awardees | Department of StateFAC WELL DRILLING, INSTALLATION & COMMISSIONING 5 EVELYN | $17,675 | 19Z11526P0846 |
| Sep 30, 2026 | Miscellaneous Foreign Awardees | Department of StateHVAC WATER TREATMENT PLANT | $19,005 | 19GT5026C0022 |
| Sep 29, 2026 | Liptinfor Niger Sa | Department of StateFAC - CLEANING OF NEC WATER STORAGE TANKS | $24,932 | 19NG6026P0847 |
| Sep 29, 2026 | Cameron Parish | Department of EnergyTHE CAMERON PARISH WATERWORKS DISTRICT NO. 2, IN HACKBERRY, LOUISIANA, SHALL SUPPLY THE MONTHLY POTABLE WATER SERVICE TO THE STRATEGIC PETROLEUM RESERVE (SPR) WEST HACKBERRY MAIN SITE AND WEST HACKBER | $87,500 | 89243526PCR000018 |
| Sep 29, 2026 | East Range Partners LLC | Department of Veterans AffairsELGA WATER SERVICES | $11,688 | 36C24126P0802 |
| Sep 29, 2026 | Miscellaneous Foreign Awardees | Department of StateCONTRACT FAC - PMSC WASTE-WATER TREATMENT SYSTEM NEC | $17,022 | 191D3226C0030 |
| Sep 28, 2026 | Miscellaneous Foreign Awardees | Department of StateFAC WELL DRILLING, INSTALLATION & COMMISSIONING 3 TINA | $15,303 | 19Z11526P0847 |
| Sep 28, 2026 | Flowsense, LLC | Department of Veterans AffairsULTRA PURIFIED WATER SERVICE AMLK/SEA | $39,840 | 36C26026P0563 |
| Sep 28, 2026 | The Maclean Group LLC | Department of Veterans AffairsLEE COUNTY CHEMICAL WATER TREATMENT | $23,174 | 36C24826N0978 |
| Sep 28, 2026 | The Maclean Group LLC | Department of Veterans AffairsTASK ORDER - BP CHEMICAL WATER TREATMENT | $159,007 | 36C24826N0963 |
| Sep 28, 2026 | G.s.e. Construction Company, Inc. | Department of StateHEADWORKS REPAIR | $1,778,800 | 191BWC26P0090 |
| Sep 25, 2026 | Living Water Industries LLC | Department of the InteriorTHE U.S. FISH AND WILDLIFE SERVICE HAS A REQUIREMENT FOR DEEP WELL REPAIR AND REHABILITATION AT THE MERCED NATIONAL WILDLIFE REFUGE IN MERCED COUNTY, CALIFORNIA. THE WORK INCLUDES DIAGNOSTICS, WELL AN | $108,800 | 140FS126P0313 |
| Sep 23, 2026 | Miscellaneous Foreign Awardees | Department of StateFAC-WATER TREATMENT SERVICES -7901-SVRC | $32,203 | 19J01026P1647 |
| Sep 23, 2026 | Miscellaneous Foreign Awardees | Department of StateCLEAN AND SAFE DRINKING WATER FOR THE MISSION | $49,660 | 19SS3026P0183 |
| Sep 23, 2026 | I-2-I Solutions, Inc. | Department of Veterans AffairsREVERSE OSMOSIS MAINTENANCE SERVICE IOWA CITY | $154,531 | 36C26326P0747 |
| Sep 23, 2026 | Atlantium Technologies LTD | Department of the InteriorUV WATER TREATMENT SYSTEM SERVICE FOR KATHERINE LANDING AT LAKE MEAD NRA | $12,342 | 140P8126P0039 |
| Sep 23, 2026 | Cawley Environmental Services Inc | Department of the InteriorE.O. 14398 FLNI: POTABLE AND WASTEWATER TREATMENT PLANT OPERATIONS | $117,600 | 140P4226C0023 |
| Sep 21, 2026 | Rochester Midland Corporation | Department of Veterans AffairsSERVICE AND MAINTENANCE OF EQUIPMENT BASE + 4 | $1,487,525 | 36C25026P1050 |
| Sep 21, 2026 | Living Water Industries LLC | Department of the InteriorCA-SAN LUIS NWR CPLX-WELL REPAIR | $10,500 | 140FS126P0296 |
| Sep 20, 2026 | Miscellaneous Foreign Awardees | Department of StateMCT-FAC-RSTR7901-DOSING PUMPS REPLACEMENT (X0037) | $42,818 | 19MU3026P0639 |
| Sep 18, 2026 | Sentinel Services, LLC | Department of Veterans AffairsREVERSE OSMOSIS/WATER SOFTENERS MAINTENANCE | $248,000 | 36C25026P1076 |
| Sep 18, 2026 | Caldaia Controls LLC | Department of Veterans AffairsWATER TREATMENT SUPPORT 512 | $306,440 | 36C24526P0637 |
| Sep 18, 2026 | Venergy Group LLC | Department of JusticeWATER CHEMICAL TESTING AND CONSULTATION SERVICES PER SOW OF PREVIOUS CONTRACT 15B10621D00000056. | $6,377 | 15B10626P00000394 |
Open water supply and irrigation systems government bids
The newest open notices from SAM.gov. Bidding needs a free SAM.gov registration.
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Veterans Affairs, Department of · Sources Sought · NAICS 221310 · WA · Small Business Set Aside - Total
Posted Oct 30, 2026 · Responses due Nov 6, 2026
How to win government water supply and irrigation systems contracts
Federal water supply and irrigation systems contracts are posted on SAM.gov under NAICS 221310. Register your business free on SAM.gov with this code, watch for water supply and irrigation systems bids, and look for small business set-asides: many water supply and irrigation systems contracts for small business are reserved for small firms.
Explore government water supply and irrigation systems contracts by state, agency and contractor
- Department of Defense contracts
- Department of Justice contracts
- Department of Health and Human Services contracts
- Department of Veterans Affairs contracts
- Department of State contracts
- Government contracts in Texas
- Government contracts in North Carolina
- Government contracts in California
- Government contracts in Maryland
- Government contracts in Oklahoma
Frequently asked questions
- What NAICS code is used for government water supply and irrigation systems contracts?
- Federal water supply and irrigation systems contracts use NAICS 221310 (Water Supply and Irrigation Systems). List this code in your free SAM.gov registration to be found for these contracts.
- Who are the largest water supply and irrigation systems government contractors?
- By contract dollars under NAICS 221310 from FY2024 to FY2026, the largest were American Water Operations and Maintenance, LLC ($405M), American Water Military Services, LLC ($136M) and Old North Utility Services, Inc. ($112M).
- Which agencies buy the most water supply and irrigation systems?
- From FY2024 to FY2026, the biggest buyers were the Department of Defense ($1.6B), the Department of Justice ($61.4M) and the Department of Health and Human Services ($55.4M).
- Where are government water supply and irrigation systems contracts performed?
- By contract dollars, the most federal water supply and irrigation systems work is performed in Texas ($226M), North Carolina ($209M) and California ($151M).
- Is federal spending on water supply and irrigation systems contracts growing?
- Federal water supply and irrigation systems contract obligations fell 12% from FY2024 ($620M) to FY2026 ($544M), peaking in FY2025. FY2026 closed recently, and Defense Department contracts are reported up to 90 days late, so its total may still rise.
- Do I qualify as a small business for water supply and irrigation systems contracts?
- It depends on the SBA size standard for NAICS 221310, which is set either by average annual revenue or by number of employees. Check the current table of size standards on sba.gov before you bid on small business set-asides.
- What do I need to bid on government water supply and irrigation systems contracts?
- An active SAM.gov registration (free) with NAICS 221310 listed, the licenses and insurance your state requires for water supply and irrigation systems work, and examples of similar past work. Some solicitations also ask for specific certifications or security clearances.