PSC Z1ND: Maintenance of Sewage and Waste Facilities
Service code
Code facts
- Spend category
- Facilities & Construction Facility Related Services
- Part of
-
-
Z
- Z1
-
Z
- Contract awards
- 66 In the last 12 months
- Contract obligations
- $29,315,406 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 | $16,676 |
| FY2026 | $11,437,357 |
| FY2025 | $29,315,406 |
| FY2024 | $17,342,602 |
| FY2023 | $21,761,532 |
Top contractors by obligations
| Rank | Contractor | Obligated, FY2026–FY2027 | Share |
|---|---|---|---|
| 1 | Optech-Monette, LLC | $1,764,000 | |
| 2 | Missouri River Contractors, LLC | $1,398,898 | |
| 3 | MES Tokki & Engineering Co., LTD. | $724,648 | |
| 4 | Tatonka Trucking Llc. | $676,896 | |
| 5 | Bric LLC | $494,551 | |
| 6 |
Seohai Construction Co., |
$445,897 | |
| 7 | Razor Consulting Solutions, Inc. | $433,969 | |
| 8 | Ben Lujan Towing, Inc. | $422,322 | |
| 9 | Waterworkforce Inc. | $384,223 | |
| 10 | Acome Construction Inc. | $371,360 |
See the full FY2025 ranking of PSC Z1ND contractors, by parent company.
Top funding agencies by obligations
| Rank | Agency | Obligated, FY2026–FY2027 | Share |
|---|---|---|---|
| 1 | Department of the Interior | $3,202,447 | |
| 2 | Air Force | $2,442,721 | |
| 3 | Department of the Army | $1,582,437 | |
| 4 | Department of the Navy | $882,335 | |
| 5 | Department of State | $798,943 | |
| 6 | Department of Agriculture | $688,216 | |
| 7 | International Boundary and Water Commission U.S.-Mexico | $676,896 | |
| 8 | Department of Health and Human Services | $485,647 | |
| 9 | Department of Justice | $314,743 | |
| 10 | Department of Veterans Affairs | $171,734 |
Top NAICS codes by obligations
| Rank | NAICS code | Obligated, FY2026–FY2027 | Share |
|---|---|---|---|
| 1 | 221320 Sewage Treatment Facilities | $2,745,347 | |
| 2 | 562991 Septic Tank and Related Services | $2,205,635 | |
| 3 | 237990 Other Heavy and Civil Engineering Construction | $1,392,849 | |
| 4 | 811310 Commercial and Industrial Machinery and Equipment (except Automotive and Electronic) Repair and Maintenance | $724,648 | |
| 5 | 237110 Water and Sewer Line and Related Structures Construction | $715,880 | |
| 6 | 562219 Other Nonhazardous Waste Treatment and Disposal | $676,896 | |
| 7 | 221310 Water Supply and Irrigation Systems | $565,551 | |
| 8 | 561210 Facilities Support Services | $519,741 | |
| 9 | 236220 Commercial and Institutional Building Construction | $445,897 | |
| 10 | 562998 All Other Miscellaneous Waste Management Services | $368,908 |
Contract obligations by state
| Rank | Place of performance | Obligated, last 12 months | Share |
|---|---|---|---|
| 1 | New Jersey | $1,790,937 | |
| 2 | Wyoming | $1,481,546 | |
| 3 | Arizona | $1,451,983 | |
| 4 | California | $891,894 | |
| 5 | North Dakota | $433,969 | |
| 6 | Guam | $422,322 | |
| 7 | New York | $389,116 | |
| 8 | Louisiana | $356,178 | |
| 9 | Texas | $263,373 | |
| 10 | Maryland | $200,268 | |
| 11 | Missouri | $189,387 | |
| 12 | New Mexico | $179,391 | |
| 13 | Virginia | $150,338 | |
| 14 | Kentucky | $131,745 | |
| 15 | Connecticut | $105,150 | |
| 16 | Georgia | $91,301 | |
| 17 | Minnesota | $84,495 | |
| 18 | Washington | $69,308 | |
| 19 | Montana | $67,725 | |
| 20 | Ohio | $57,392 | |
| 21 | Pennsylvania | $52,655 | |
| 22 | West Virginia | $51,157 | |
| 23 | Mississippi | $46,267 | |
| 24 | Utah | $43,194 | |
| 25 | Michigan | $29,150 | |
| 26 | North Carolina | $26,508 | |
| 27 | Kansas | $25,680 | |
| 28 | Indiana | $25,344 | |
| 29 | Wisconsin | $15,530 | |
| 30 | Oregon | $13,873 | |
| 31 | Colorado | $9,889 | |
| 32 | Oklahoma | $2,475 |
Show all 32
Shares are of everything obligated under PSC Z1ND 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 389 listed here. See the rest on GovTribe.
Quick answers
What is PSC Z1ND?
PSC Z1ND is Maintenance of Sewage and Waste Facilities, a service code in PSC Z, Maintenance, Repair, Alteration Real Property.
How much do federal agencies spend under PSC Z1ND?
Federal contracts under PSC Z1ND obligated $29,315,406 in fiscal year 2025 and $79,873,574 in fiscal years 2023 through 2027.
Who are the largest contractors under PSC Z1ND?
The contractors with the most obligated under PSC Z1ND in fiscal years 2026 and 2027 are Optech-Monette, LLC ($1,764,000); Missouri River Contractors, LLC ($1,398,898); and MES Tokki & Engineering Co., LTD. ($724,648).
Which agencies buy the most under PSC Z1ND?
The agencies that obligated the most under PSC Z1ND in fiscal years 2026 and 2027 are Department of the Interior ($3,202,447), Air Force ($2,442,721) and Department of the Army ($1,582,437).
Which NAICS codes are used with PSC Z1ND?
The NAICS codes with the most obligated under PSC Z1ND in fiscal years 2026 and 2027 are 221320 Sewage Treatment Facilities, 562991 Septic Tank and Related Services and 237990 Other Heavy and Civil Engineering Construction.
Where is the work under PSC Z1ND performed?
By place of performance, the states with the most contract obligations under PSC Z1ND over the last 12 months are New Jersey ($1,790,937), Wyoming ($1,481,546) and Arizona ($1,451,983).
What is the latest contract opportunity under PSC Z1ND?
The latest contract opportunity under PSC Z1ND is Effluent Wastewater Testing - Saginaw VAMC, pre-solicitation from Veterans Integrated Service Network 10 (VHA), posted October 16, 2026.
On GovTribe
See everything under PSC Z1ND
- Federal contract opportunities, awards and IDVs under this code
- Funding analysis by contractor, agency and set-aside
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