Top HHS water supply and irrigation systems contractors
In the 12 months ending Oct 5, 2026, the Department of Health and Human Services obligated $20.3M in net prime contract dollars under NAICS 221310, up 6.4% from $19.1M in the preceding 12 months. 24 prime contractors received positive obligations, and 1 of them accounted for 80% of that spend.
Prime contracts funded by the Department of Health and Human Services. 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 HHS 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 | Washington Suburban Sanitary Commission | $18.1M | $17.6M | 89.0% | — |
| 2 | Hydro, Inc. | $424K | $392K | 2.1% | — |
| 3 | Navajo Tribal Utility Authority | $350K | $350K | 1.7% | — |
| 4 | Hydro Service & Supplies, Inc. | $324K | $158K | 1.6% | — |
| 5 | Pennsylvania - American Water Company | $223K | $74K | 1.1% | ▲ 3 |
| 6 | City of Cincinnati | $177K | $119K | 0.9% | ▲ 1 |
| 7 | Phoenix, City of | $150K | $0 | 0.7% | New |
| 8 | Quechan Indian Tribe | $109K | −$272K | 0.5% | New |
| 9 | Morgantown Utility Board | $60K | $125K | 0.3% | ▼ 3 |
| 10 | Two Medicine Water Co | $60K | $62K | 0.3% | ▼ 1 |
| 11 | Evoqua Water Technologies LLC | $50K | $48K | 0.2% | ▼ 1 |
| 12 | First Mesa Consolidated Villages | $49K | $23K | 0.2% | ▲ 3 |
| 13 | Northern Cheyenne Utilities Commission | $47K | $45K | 0.2% | ▼ 2 |
| 14 | I-2-I Solutions, Inc. | $34K | $0 | 0.2% | New |
| 15 | ST of MT City of Poplar | $33K | $35K | 0.2% | ▼ 3 |
What changed in the last 12 months
Contractors with the largest change in reported obligations versus the preceding 12 months.
Largest gains
- Washington Suburban Sanitary Commission$17.6M → $18.1M (+$481K) · now #1
- Quechan Indian Tribe−$272K → $109K (+$382K) · now #8
- Hydro Service & Supplies, Inc.$158K → $324K (+$166K) · now #4
Largest declines
- Industrial Water Engineering, Inc.$143K → $0 (−$143K) · no latest-period obligations
- Morgantown Utility Board$125K → $60K (−$65K) · now #9
- Performance Water Systems ESR, LLC$34K → $0 (−$34K) · no latest-period obligations
New to this market
4 contractors received their first obligations in this market (since FY2022) during the latest 12 months. The largest:
| Contractor | First obligation | Latest 12 mo |
|---|---|---|
| Phoenix, City of | Sep 15, 2026 | $150K |
| I-2-I Solutions, Inc. | Jun 3, 2026 | $34K |
| Apex Water and Process Inc | Sep 8, 2026 | $8K |
| Confederated Tribes and Bands of the Yakama Nation | Aug 6, 2026 | $6K |
Where the money comes from
Funding sub-agencies within the Department of Health and Human Services, 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 Institutes of Health | $18.5M | $17.9M | Up $621K (3.5%) |
| Indian Health Service | $928K | $498K | Up $430K (86.4%) |
| Centers for Disease Control and Prevention | $904K | $730K | Up $174K (23.9%) |
| Health Resources and Services Administration | $4K | $4K | Up $152 (3.6%) |
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 |
|---|---|---|---|
| 75N99022C00001 | Washington Suburban Sanitary Commission WSSC (WATER) NIH CAMPUS AND LEASE INVOICING (FY22) CONTRACT# 75N99022C00001 | $78.9M | Dec 31, 2026 |
| 75D30124C19094 | Hydro, Inc. CDC ATLANTA PURE WATER MAINTENANCE 2024-2029 | $1.1M | Mar 1, 2027 |
Common questions
Who are the top HHS contractors for NAICS 221310?
In the latest 12 months, Washington Suburban Sanitary Commission ($18.1M), Hydro, Inc. ($424K), Navajo Tribal Utility Authority ($350K) received the most HHS obligations for water supply and irrigation systems.
How concentrated is this market?
The eight largest primes held 97.7% of positive obligations, and Washington Suburban Sanitary Commission alone held 89.0%. 4 contractors won their first obligations in this market during the latest 12 months.
Are any large HHS NAICS 221310 contracts ending soon?
2 of the largest awards in this market reach their current end date in the next 18 months. The first is 75N99022C00001 (Washington Suburban Sanitary Commission, $78.9M 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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