Superior's water and sewer come from the Town's Public Works and Utilities, operating as Superior Metropolitan District No. 1, which requires commercial and multifamily backflow devices to be tested every year by a district-approved technician. Owners are responsible for the water line from the meter pit outlet and the whole sewer service line. Call the number on this page to be connected with a local plumber in Superior.

How Superior's system works for businesses
The Town treats Colorado-Big Thompson water delivered from Carter Lake to Terminal Reservoir at its treatment plant south of Original Town, and disinfects with chlorine rather than chloramine. The 2026 report lists no health-based violations. Wastewater is treated at the Town's plant, and the treated effluent feeds a separate purple-pipe reclaimed water system for commercial landscape irrigation, so some commercial sites have two distinct water systems that must never be cross-connected.
District rules set a clear split. The district owns the tap, corporation stop, meter, meter pit and curb stop up to the meter pit outlet. The owner owns and maintains the water line from that outlet to the building, including any part in the public right-of-way, and the entire sewer service line from the building to the main, tap included. The district can require repairs within 72 hours of notice, so a leaking line isn't something to put off.
Comparing typical jobs
| Job | What's involved | Town requirement |
|---|---|---|
| Annual backflow test | Testing each device and fixing failures | District-approved certified technician |
| Water heater installation | Sizing, venting, expansion tank | Building permit; expansion tank if backflow is on the system |
| Service line leak past the meter pit | Locating and repairing the owner's line | Repairs may be required within 72 hours |
| Sewer lateral backup | Clearing and camera inspection | Owner's line all the way to the main |
Signs to watch
- A district notice about a missing backflow report
- Wet pavement or soggy landscaping near the meter pit
- Drains that slow down in a restaurant or salon
- Relief valve discharge from a water heater, which can point to a missing expansion tank
- Running restroom fixtures
Seasonal timing
Plan backflow tests early in the irrigation season so repairs don't run into deadlines, and keep reclaimed irrigation piping clearly marked during any landscape work. In fall, drain outdoor lines before hard freezes. The Building Department, run by SAFEbuilt at 100 Superior Plaza Way, issues permits through the Community Core portal; call 303-381-2028 to check what a project needs. For a water or sewer emergency after hours, the Town's hotline is 303-554-9086, and the main Town office is 303-499-3675.
Commercial Plumbing questions in Superior
Does a business here need its backflow assemblies tested every year?
Where does the utility's share of the water service line end?
Who is responsible for the sewer line from our building to the main?
How do cold snaps affect plumbing in commercial buildings?
More plumbing services in Superior
Commercial Plumbing nearby
Helpful guides
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