Most of Commerce City gets water and sewer from the South Adams County Water and Sanitation District, which blends its own well water with Denver Water supply and treats wastewater at its own plant. Building permits come from the City of Commerce City. Plumber Denver CO is a free referral service, not a plumbing company; call the number on this page to be connected with a local plumber in Commerce City.

Plumbing services in Commerce City
Just north of Denver in Adams County
Commerce City lies north and northeast of Denver in Adams County, with its center about 14 miles from downtown in a straight line. It grew from farmland after industry arrived in the late 1920s, incorporated as a town in 1952 and became a city in 1962. The 2020 count was 62,418. The Suncor refinery and Brighton Boulevard reflect the industrial side, while the Rocky Mountain Arsenal National Wildlife Refuge, Dick's Sporting Goods Park and the Civic Center at 60th and Trenton anchor the rest.
One district for water and wastewater
The city's utilities page lists the South Adams County Water and Sanitation District, known as SACWSD, as the water and sewer provider. SACWSD calls itself the largest combined water and sanitation district in Colorado, covering more than 65 square miles. Adams County also lists an Industrial Park Water and Sanitation district at a Commerce City address, so a few properties may be served by someone else; confirm by address if you are unsure.
SACWSD pumps eleven alluvial wells tied to the South Platte and three deep Arapahoe formation wells, treats the alluvial water at the Klein Water Treatment Facility, and blends it with surface water bought from Denver Water before disinfecting with chlorine. Its inventory of district-owned and customer-owned service lines classifies all of them as non-lead, with no galvanized lines that need replacement.
Wastewater is treated at SACWSD's Williams Monaco plant in Henderson, not at Metro Water Recovery. The district separates the public sewer from private lines owned by property owners. For a backup, it asks customers to call so it can help tell whether the blockage is in the main or the private line, and it advises clearing tree roots away from sewer service lines.
Emergencies, backflow and permits
SACWSD takes water and wastewater emergency calls, including main breaks, shutoffs and sewer main backups, at 303-288-2646 during and after business hours. Commercial users must install backflow devices tested at installation and every year by an ASSE- or ABPA-certified tester, with reports due by August 31. The City of Commerce City Building Safety Division reviews plumbing plans and lists water heater replacement as a project that can need a permit; permits run through eTRAKiT, and the division's number is 303-289-3790.
Gas and calling
Xcel Energy supplies natural gas in Commerce City. If you smell gas, leave the building first and then call 911 and Xcel at 1-800-895-2999. No housing-age figure for Commerce City was confirmed.
How it compares with Denver
In Denver, Denver Water and the city's Wastewater Management split the work, with regional treatment at Metro Water Recovery. Here a single district does both and runs its own treatment plant, and part of the supply is groundwater. When you call the number on this page, say whether the trouble is a slow drain, a backup or a leak, and you will be connected with an independent plumber serving Commerce City who quotes the job directly.
Common questions in Commerce City
Who provides water and sewer in Commerce City?
What should I do about a sewer backup in Commerce City?
Is Commerce City's water from wells?
Does replacing a water heater in Commerce City need a permit?
Nearby cities and towns
Sources
- Wikipedia: Commerce City, Colorado
- City of Commerce City: Utilities
- SACWSD: 2026 Water Quality Report (PDF)
- SACWSD: Wastewater information
- SACWSD: Lead and galvanized service line inventory
- SACWSD: Report a water or wastewater emergency
- SACWSD: Backflow program
- City of Commerce City: Building on my property
- Xcel Energy: Natural gas safety (Colorado bill insert)
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