PSC Y1NE: Construction of Water Supply Facilities
Service code
Code facts
- Spend category
- Facilities & Construction Construction Related Services
- Part of
-
-
Y
- Y1
-
Y
- Contract awards
- 78 In the last 12 months
- Contract obligations
- $540,663,548 In FY2025
PSC codes and definitions come from the GSA PSC Manual and contract spending from SAM.gov/FPDS.
Contract obligations by fiscal year
| Fiscal year | Obligated |
|---|---|
| FY2027 To date | $1,000 |
| FY2026 | $389,391,746 |
| FY2025 | $540,663,548 |
| FY2024 | $658,413,943 |
| FY2023 | $191,536,303 |
Top contractors by obligations
| Rank | Contractor | Obligated, FY2026–FY2027 | Share |
|---|---|---|---|
| 1 | Ames Federal Contracting Group LLC | $129,487,964 | |
| 2 | Carstensen Contracting Inc. | $72,863,608 | |
| 3 | Pate Construction Co., Inc. | $36,970,616 | |
| 4 | Hensel Phelps - Shimizu JV | $36,327,000 | |
| 5 | Chandler Construction Services, Inc. | $16,492,000 | |
| 6 | Tehama Technical Services, LLC | $15,880,000 | |
| 7 | Prairie Band Construction, Inc. | $10,998,670 | |
| 8 | Guardian Construction, Inc. | $9,449,817 | |
| 9 | Jacobs Project Management CO. | $8,473,972 | |
| 10 | Bowen Engineering Corp | $8,450,000 |
See the full FY2025 ranking of PSC Y1NE contractors, by parent company.
Top funding agencies by obligations
| Rank | Agency | Obligated, FY2026–FY2027 | Share |
|---|---|---|---|
| 1 | Department of the Interior | $282,255,000 | |
| 2 | Department of the Navy | $53,691,799 | |
| 3 | Department of the Army | $37,592,351 | |
| 4 | Department of Veterans Affairs | $6,458,112 | |
| 5 | Department of Agriculture | $3,850,961 | |
| 6 | Air Force | $3,743,855 | |
| 7 | Department of Transportation | $904,457 | |
| 8 | Department of Health and Human Services | $545,487 | |
| 9 | Department of Homeland Security | $230,854 | |
| 10 | Department of State | $208,981 |
Top NAICS codes by obligations
| Rank | NAICS code | Obligated, FY2026–FY2027 | Share |
|---|---|---|---|
| 1 | 237110 Water and Sewer Line and Related Structures Construction | $322,564,417 | |
| 2 | 236220 Commercial and Institutional Building Construction | $41,087,207 | |
| 3 | 237990 Other Heavy and Civil Engineering Construction | $24,508,169 | |
| 4 | 238910 Site Preparation Contractors | $691,143 | |
| 5 | 221310 Water Supply and Irrigation Systems | $422,605 | |
| 6 | 238220 Plumbing, Heating, and Air-Conditioning Contractors | $184,864 | |
| 7 | 238110 Poured Concrete Foundation and Structure Contractors | $11,242 | |
| 8 | 238210 Electrical Contractors and Other Wiring Installation Contractors | $6,837 | |
| 9 | 488510 Freight Transportation Arrangement | $6,771 |
Contract obligations by state
| Rank | Place of performance | Obligated, last 12 months | Share |
|---|---|---|---|
| 1 | New Mexico | $216,582,743 | |
| 2 | Colorado | $49,030,819 | |
| 3 | Guam | $36,487,124 | |
| 4 | South Carolina | $16,492,000 | |
| 5 | Idaho | $16,312,030 | |
| 6 | Texas | $12,255,649 | |
| 7 | California | $9,075,150 | |
| 8 | Indiana | $8,537,585 | |
| 9 | Missouri | $5,102,929 | |
| 10 | New Jersey | $4,776,000 | |
| 11 | Kansas | $3,723,510 | |
| 12 | Arkansas | $3,611,046 | |
| 13 | South Dakota | $1,975,591 | |
| 14 | Wyoming | $765,563 | |
| 15 | Maryland | $624,280 | |
| 16 | Montana | $585,528 | |
| 17 | Rhode Island | $498,857 | |
| 18 | Washington | $428,736 | |
| 19 | Oklahoma | $388,702 | |
| 20 | Maine | $190,442 | |
| 21 | Arizona | $162,439 | |
| 22 | District of Columbia | $124,022 | |
| 23 | Illinois | $96,469 | |
| 24 | North Dakota | $86,377 | |
| 25 | Utah | $80,000 | |
| 26 | Virginia | $48,045 | |
| 27 | Alaska | $43,053 | |
| 28 | Mississippi | $19,704 | |
| 29 | Nevada | $18,088 | |
| 30 | Hawaii | $13,897 |
Show all 30
Shares are of everything obligated under PSC Y1NE in the last 12 months before deobligations, including work performed abroad or with no place of performance on record.
Contract opportunities
Show 40 more
Latest 50 of 1,138 listed here. See the rest on GovTribe.
Quick answers
What is PSC Y1NE?
PSC Y1NE is Construction of Water Supply Facilities, a service code in PSC Y, Construction of Structures/
How much do federal agencies spend under PSC Y1NE?
Federal contracts under PSC Y1NE obligated $540,663,548 in fiscal year 2025 and $1,780,006,541 in fiscal years 2023 through 2027.
Who are the largest contractors under PSC Y1NE?
The contractors with the most obligated under PSC Y1NE in fiscal years 2026 and 2027 are Ames Federal Contracting Group LLC ($129,487,964); Carstensen Contracting Inc. ($72,863,608); and Pate Construction Co., Inc. ($36,970,616).
Which agencies buy the most under PSC Y1NE?
The agencies that obligated the most under PSC Y1NE in fiscal years 2026 and 2027 are Department of the Interior ($282,255,000), Department of the Navy ($53,691,799) and Department of the Army ($37,592,351).
Which NAICS codes are used with PSC Y1NE?
The NAICS codes with the most obligated under PSC Y1NE in fiscal years 2026 and 2027 are 237110 Water and Sewer Line and Related Structures Construction, 236220 Commercial and Institutional Building Construction and 237990 Other Heavy and Civil Engineering Construction.
Where is the work under PSC Y1NE performed?
By place of performance, the states with the most contract obligations under PSC Y1NE over the last 12 months are New Mexico ($216,582,743), Colorado ($49,030,819) and Guam ($36,487,124).
What is the latest contract opportunity under PSC Y1NE?
The latest contract opportunity under PSC Y1NE is GRCA 318719 North Rim & Roaring Springs Rehabilitation Program, pre-solicitation, posted October 22, 2026.
On GovTribe
See everything under PSC Y1NE
- Federal contract opportunities, awards and IDVs under this code
- Funding analysis by contractor, agency and set-aside
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