Top Interior water supply and irrigation systems contractors
In the 12 months ending Oct 5, 2026, the Department of the Interior obligated $9.9M in net prime contract dollars under NAICS 221310, down 1.6% from $10.1M in the preceding 12 months. 84 prime contractors received positive obligations, and 16 of them accounted for 80% of that spend.
Prime contracts funded by the Department of the Interior. Latest 12 months: Oct 6, 2025 to Oct 5, 2026. Source: USAspending.gov.
Obligations by fiscal year
Net prime contract obligations by federal fiscal year (October to September).
Top Interior contractors for NAICS 221310
Ranked by positive obligations in the latest 12 months. Share is of all positive obligations in this market.
| # | Contractor | Latest 12 mo | Prior 12 mo | Share | Rank change |
|---|---|---|---|---|---|
| 1 | American AG Energy, Inc. | $2.7M | $0 | 26.1% | New |
| 2 | Henry Miller Reclaimation District 2131 | $1.1M | $2.1M | 10.3% | ▼ 1 |
| 3 | Cabin Creek Services LLC | $649K | $105K | 6.4% | ▲ 21 |
| 4 | Department of Water Resources Oregon | $606K | $509K | 6.0% | ▼ 1 |
| 5 | City of Lawrence | $565K | $198K | 5.5% | ▲ 6 |
| 6 | WCA Construction, LLC | $498K | $43K | 4.9% | ▲ 37 |
| 7 | Bric LLC | $495K | $1.1M | 4.9% | ▼ 5 |
| 8 | Filtration Technology, Inc | $317K | $373K | 3.1% | ▼ 2 |
| 9 | City of Grand Coulee | $268K | $240K | 2.6% | — |
| 10 | Intake Screens, Inc. | $233K | $0 | 2.3% | New |
| 11 | Pearl Purity Water Solution LLC | $194K | $299K | 1.9% | ▼ 3 |
| 12 | Calhoun & Dejong Inc | $174K | $0 | 1.7% | New |
| 13 | Inner Basin Environmental LLC | $148K | $21K | 1.5% | ▲ 46 |
| 14 | Palo Verde Irrigation District | $139K | $153K | 1.4% | — |
| 15 | Albuquerque Bernalillo County Water Utility Authority | $126K | $118K | 1.2% | ▲ 6 |
What changed in the last 12 months
Contractors with the largest change in reported obligations versus the preceding 12 months.
Largest gains
- American AG Energy, Inc.$0 → $2.7M (+$2.7M) · now #1
- Cabin Creek Services LLC$105K → $649K (+$544K) · now #3
- WCA Construction, LLC$43K → $498K (+$454K) · now #6
Largest declines
- Henry Miller Reclaimation District 2131$2.1M → $1.1M (−$1.1M) · now #2
- Bric LLC$1.1M → $495K (−$570K) · now #7
- Columbia Resource Conservation District$465K → $0 (−$465K) · no latest-period obligations
New to this market
24 contractors received their first obligations in this market (since FY2022) during the latest 12 months. The largest:
| Contractor | First obligation | Latest 12 mo |
|---|---|---|
| American AG Energy, Inc. | Aug 27, 2026 | $2.7M |
| Intake Screens, Inc. | Jun 16, 2026 | $233K |
| Calhoun & Dejong Inc | Feb 11, 2026 | $174K |
| Living Water Industries LLC | Sep 21, 2026 | $119K |
| Cawley Environmental Services Inc | Sep 23, 2026 | $118K |
| Carbon Activated Corporation | Sep 18, 2026 | $116K |
| Community Water Systems, L.L.C. | Jul 17, 2026 | $90K |
| Offshore JOB Services LLC | Feb 24, 2026 | $72K |
Where the money comes from
Funding sub-agencies within the Department of the Interior, latest 12 months. The funding organization can differ from the office that runs the requirement.
| Funding sub-agency | Latest 12 mo | Prior 12 mo | Change |
|---|---|---|---|
| National Park Service | $4.3M | $3.7M | Up $599K (16.3%) |
| Bureau of Reclamation | $2.0M | $2.0M | Down $22K (1.1%) |
| Bureau of Indian Affairs and Bureau of Indian Education | $1.7M | $1.0M | Up $698K (67.0%) |
| U.S. Fish and Wildlife Service | $1.6M | $3.2M | Down $1.5M (48.6%) |
| U.S. Geological Survey | $180K | $0 | New |
| Bureau of Land Management | $144K | $210K | Down $66K (31.3%) |
Potential recompetes
Large awards in this market whose current period of performance ends in the next 18 months. Treat these as research leads: options, extensions, and follow-on vehicles often change the timing.
| Award | Incumbent | Obligated | Current end |
|---|---|---|---|
| 140PS125C0014 | Bric LLC GLCA-EMERGENCY-22DS FUNDED WATER TREATME | $1.6M | Dec 31, 2026 |
| 140A2323P0041 | City of Lawrence WATER AND SEWAGE SERVICE, HINU | $1.5M | May 19, 2027 |
| 140P8526P0071 | American AG Energy, Inc. EO 14398 NCR-NAMA: LMRP TREATMENT | $2.7M | Aug 28, 2027 |
| 140R1722P0029 | Department of Water Resources Oregon OWRD STREAMGAUGING | $1.1M | Aug 31, 2027 |
| 140R1722P0020 | Department of Water Resources Oregon UMATILLA BASIN WATER MONITORING PROGRAM | $1.5M | Aug 31, 2027 |
| 140F0S25C0005 | Henry Miller Reclaimation District 2131 CA-SAN LUIS NWRC-HMRD-CVPIA-WATER EASEMT | $3.2M | Sep 30, 2027 |
Common questions
Who are the top Interior contractors for NAICS 221310?
In the latest 12 months, American AG Energy, Inc. ($2.7M), Henry Miller Reclaimation District 2131 ($1.1M), Cabin Creek Services LLC ($649K) received the most Interior obligations for water supply and irrigation systems.
How concentrated is this market?
The eight largest primes held 67.2% of positive obligations, and American AG Energy, Inc. alone held 26.1%. 24 contractors won their first obligations in this market during the latest 12 months.
Are any large Interior NAICS 221310 contracts ending soon?
6 of the largest awards in this market reach their current end date in the next 18 months. The first is 140PS125C0014 (Bric LLC, $1.6M obligated), ending Dec 31, 2026. An end date is a research lead, not a confirmed recompete: options and extensions often move it.
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$6.9MFigures are net obligations on prime contracts (award types A–D) from USAspending.gov, grouped by funding agency and the NAICS code on each award. Net obligations include deobligations and corrections, so they can differ from positive-obligation totals. See methodology.
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