Brighton's Cross Connection Control rules require every non-single-family residential property to have a backflow assembly on each service, tested every year by a certified tester; homes with a secondary well tied into household plumbing need a containment assembly. For a test, a repair or a new assembly, call the number on this page to be connected with a local plumber in Brighton.

Backflow on Brighton water
The City of Brighton delivers potable and non-potable water across a 22-square-mile service area and runs one of the largest municipal reverse osmosis treatment plants west of the Mississippi. Its cross-connection rules require an assembly on every service at non-single-family residential properties, with an annual test by a certified tester. Reports go to the city with proof of the tester's certification and gauge calibration. For single-family homes, the city says irrigation systems should be isolated from household plumbing, and a secondary well connected to household plumbing needs a containment assembly.
What to do now
- Check your provider. Some newer subdivisions and unincorporated areas with Brighton addresses are on other districts.
- Look for an old well tie-in. If a private well still connects to the house plumbing, flag it.
- Inspect irrigation. Make sure the sprinkler system has a device separating it from household water.
- Stop leaks. Close the irrigation valve if the device is spraying.
- Book a certified tester. Ask them to include certification and gauge calibration with the report.
Symptoms and likely causes
| Symptom | Likely cause |
|---|---|
| Relief valve dumping water | Debris or worn check valve |
| Split body after winter | Freeze with water trapped inside |
| Odd taste or color at the tap | Possible cross-connection; stop using it and call |
| Pressure loss at an apartment building | Clogged or failing domestic assembly |
| Well pump runs while city water is on | Well still tied into household plumbing |
What drives cost
- Number of services. Multifamily and commercial properties need an assembly on every service.
- Well containment. Adding a containment assembly is new installation work.
- Repairs. Parts and a retest after a failure.
- Freeze damage. Cracked units get replaced.
- Permits. Brighton issues permits through OpenGov; the Building Permit Counter is at 303-655-2017.
Brighton began as a farming and railroad depot town, and older properties near Bromley Lane and the original town may still have wells from that era. City crews fix water lines up to and including the meter, and anything from the house-side hand valve inward is the owner's.
Emergency water heater replacements can happen before permitting in Brighton, with the permit applied for by the next business day, but backflow work is rarely that urgent. Plan it, pull the permit if one is needed, and keep the test report for the city.
Backflow Testing questions in Brighton
My property has a private well. Where does backflow fit in?
Does an ordinary single-family house need annual testing?
Where do the test results go once the test is done?
Who pays for the backflow device and its upkeep?
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