PSC H946: Other QC/Test/Inspect – Water Purification and Sewage Treatment Equipment
H946 is the product and service code (PSC) federal agencies use for other qc/test/inspect – water purification and sewage treatment equipment, in the other quality, test, inspect svcs group. Here are the contracts open under it now, the NAICS codes it pairs with, and who buys and wins this work.
- Open contracts now
- 1
- Spending, FY2026
- $7.8 million
- Share to small businesses
- 56%
Open contracts with PSC H946, due soonest
- NEW: Quality Water Testing North Texas
Due in 2 daysOct 12, 2026
Where H946 sits in the PSC Manual
- Category: Service
- Group H: Quality Control, Test, Inspection
- Group H9: Other Quality, Test, Inspect SVCS
- Code H946: Other QC/Test/Inspect – Water Purification and Sewage Treatment Equipment
NAICS codes used with PSC H946
The NAICS code on a contract sets the size standard for who counts as small. These are the codes agencies pair with H946 most often:
| NAICS | Industry | Spent, last 3 years |
|---|---|---|
| 221310 | Water Supply and Irrigation Systems | $10.9 million |
| 541380 | Testing Laboratories and Services | $3.1 million |
| 325998 | All Other Miscellaneous Chemical Product and Preparation Manufacturing | $2.1 million |
| 238220 | Plumbing, Heating, and Air-Conditioning Contractors | $1.3 million |
| 561210 | Facilities Support Services | $1.2 million |
| 541620 | Environmental Consulting Services | $984,938 |
Who buys under PSC H946
Agencies with the most contract dollars under H946 over the last three fiscal years, per USAspending.gov:
| Agency | Obligated |
|---|---|
| Department of Veterans Affairs | $16 million |
| Public Buildings Service | $1.8 million |
| U.S. Coast Guard | $546,017 |
| Federal Bureau of Investigation | $444,652 |
| Indian Health Service | $303,347 |
| National Park Service | $223,951 |
| Department of the Air Force | $216,491 |
| Federal Aviation Administration | $161,826 |
Federal spending under PSC H946 by year
| Fiscal year | Contract obligations |
|---|---|
| FY2024 | $4.7 million |
| FY2025 | $7.5 million |
| FY2026 | $7.8 million |
| FY2027 (so far) | $352,643 |
Who wins PSC H946 contracts
| Company | Obligated, last 3 years |
|---|---|
| Solid Blend Technologies, Inc. | $5.2 million |
| Premier Water & Energy Technology Inc | $1.8 million |
| Coventina Water, LLC | $1.6 million |
| Rochester Midland Corporation | $1.5 million |
| Enrec Enterprises Inc | $959,923 |
| RLM Government Services LLC | $846,985 |
| Verda Medical Systems, LLC | $766,621 |
| Hyperion Biotechnology, Inc. | $753,778 |
| Aviate Enterprises, Inc. | $614,869 |
| HGS Engineering Inc | $472,823 |
Related PSC codes
- H910 Other QC/Test/Inspect – Weapons
- H911 Other QC/Test/Inspect – Nuclear Ordnance
- H912 Other QC/Test/Inspect – Fire Control Equipment
- H913 Other QC/Test/Inspect – Ammunition and Explosives
- H914 Other QC/Test/Inspect – Guided Missiles
- H915 Other QC/Test/Inspect – Aircraft and Airframe Structural Components
- H916 Other QC/Test/Inspect – Aircraft Components and Accessories
- H917 Other QC/Test/Inspect – Aircraft Launching, Landing, and Ground Handling Equipment
- H918 Other QC/Test/Inspect – Space Vehicles
- H919 Other QC/Test/Inspect – Ships, Small Craft, Pontoons, and Floating Docks
Frequently asked questions
What is PSC H946?
H946 is the service code in the federal Product and Service Code (PSC) Manual for other qc/test/inspect – water purification and sewage treatment equipment, under H (Quality Control, Test, Inspection) and H9 (Other Quality, Test, Inspect SVCS). Agencies put a PSC on every contract to record what they bought.
What is the difference between a PSC and a NAICS code?
A PSC describes what the government is buying. A NAICS code describes the industry of the business doing the work, and it sets the SBA size standard for small business set-asides. Every contract notice has both.
Which NAICS code goes with PSC H946?
Most federal contract dollars under PSC H946 go with NAICS 221310 (Water Supply and Irrigation Systems), according to USAspending.gov. The contracting officer picks the NAICS code for each solicitation, so check the notice.
How do I find contracts that use PSC H946?
Contract opportunities are posted on SAM.gov with their PSC and NAICS codes. 1 open notices use PSC H946 right now. FedReady can match new ones to your business and email you, free.