Superior's Town utility, operating as Superior Metropolitan District No. 1, provides water and sewer, and homeowners own the water line from the meter pit and the entire sewer lateral. Plumber Denver CO connects callers with independent plumbers and is not a plumbing company. Call the number on this page to be connected with a local plumber in Superior.

Plumbing services in Superior
Between Boulder and Denver on US-36
Superior is a home rule town incorporated in 1904, almost entirely in Boulder County, with a small uninhabited piece in Jefferson County. It had 13,094 residents in 2020, sits about 16 miles from downtown Denver in a straight line, and mails as Louisville (ZIP 80027). The town grew from a coal-mining and ranching settlement into a suburb along US-36, CO-128 and CO-170, with neighborhoods such as Rock Creek Ranch, Original Town and Sagamore and a newer Downtown Superior. Much of Original Town and Sagamore was rebuilt after the December 2021 Marshall Fire.
Colorado-Big Thompson water, treated by the Town
The Town's Public Works and Utilities department serves customers inside town limits through Superior Metropolitan District No. 1, and nearly no homes rely on wells. Water starts as Upper Colorado River snowmelt delivered by Northern Water's Colorado-Big Thompson Project through Carter Lake to Terminal Reservoir at the Town treatment plant south of Original Town. It is disinfected with chlorine, not chloramine. The utility keeps a service line inventory and will tell you what your line is made of on request; its yearly water quality report has the test data. The after-hours emergency hotline is 303-554-9086, and the Town office is 303-499-3675.
Wastewater is treated at the Town's own plant, and its effluent feeds a separate purple-pipe reclaimed water system used for commercial landscape irrigation.
Where your pipe begins
The District's rules are specific. It owns the tap, corporation stop, meter, meter pit and curb stop up to the meter pit outlet. From that outlet to the building, the water service line is yours, even the part under the street right-of-way. The whole sewer service line from the building to the main, including the tap, is yours too, and the District can require repairs within 72 hours of notice. In practice, most leaks between the meter and the house and most lateral problems are plumber work paid by the owner.
Permits, expansion tanks and backflow
The Town of Superior Building Department, operated by SAFEbuilt at 100 Superior Plaza Way, Suite 200 (303-381-2028), issues permits through its Community Core portal. A permit is required to install a water heater, and an expansion tank is required when the system has backflow prevention. Annual backflow testing by a District-approved certified technician applies to commercial and multifamily connections; single-family detached homes are exempt.
Gas: Xcel Energy
Xcel Energy serves the Louisville and Superior area. If you notice a rotten-egg smell, leave the house, then call 911 and Xcel at 1-800-895-2999 from outside.
Superior versus Denver
Compared with a Denver home on Denver Water, a Superior owner is responsible for more pipe, including the sewer tap and the section under the street. Permits go through SAFEbuilt for the Town. When you call the number on this page, describe the problem and whether the main shutoff is closed, and you will be connected with an independent plumber who works in Superior. You settle price and timing with that plumber.
Common questions in Superior
What part of the water line do I own in Superior?
Who owns the sewer lateral in Superior?
Does a new water heater in Superior need a permit?
Do single-family homes in Superior need backflow tests?
Nearby cities and towns
Sources
- Wikipedia: Superior, Colorado
- Town of Superior: 2026 water quality report
- Town of Superior: Water usage and resources
- Town of Superior: Public Works and Utilities
- Superior Metropolitan District No. 1: Rules and regulations
- Town of Superior: Building permits
- City of Louisville: Xcel Energy gas service notice
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