San Tan Valley is a young Pinal County town where the water provider depends on the address: EPCOR supplies water and wastewater across much of the area, while the Town of Queen Creek supplies water only in some parts. EPCOR's San Tan system runs entirely on groundwater. Plumber Phoenix is a free referral service; call the number on this page to be connected with a local plumber in San Tan Valley.

Plumbing services in San Tan Valley
Northern Pinal County, southeast of the metro
San Tan Valley is in Pinal County, roughly 35 miles southeast of downtown Phoenix in a straight line, next to Queen Creek. It was desert and farmland until rapid growth after 2000 filled it with planned communities such as Johnson Ranch, Pecan Creek South, San Tan Heights and Archer Meadows, with San Tan Mountain Regional Park on the edge. Voters approved incorporation in 2025, so it is now a town rather than an unincorporated area. The 2020 Census counted 99,894 people in what was then a census-designated place.
Two water providers, one main sewer utility
Check your bill before assuming anything. Across much of San Tan Valley, EPCOR provides both water and wastewater through its San Tan districts, the systems formerly run by Johnson Utilities. Some neighborhoods instead get water from the Town of Queen Creek, which provides water only there; those homes use Queen Creek's water quality report. EPCOR also has a separate San Tan at Anthem district with its own report. EPCOR's wastewater goes to its enclosed Copper Basin Water Reclamation Facility. EPCOR Customer Care is 1-800-383-0834.
EPCOR's San Tan system draws only groundwater and disinfects with chlorine, and its report lists hardness of 15 to 18 grains per gallon. That is hard water by any measure, so scale in water heaters, on tankless heat exchangers, inside faucet cartridges and on shower valves is a routine reason for a call, and many homeowners run a softener. EPCOR keeps a service line material inventory at epcor.com/safety, says it is responsible for removing any identified lead pipes, and reports that its San Tan lead and copper sampling met federal standards.
Permits during the transition
The new Town took over zoning and building processes inside its limits from Pinal County, and Pinal County provides building safety, plan review, permitting and inspection services to the Town under intergovernmental agreements. Permits the County issued before the handoff stay with the County until they close out. For plumbing permit questions, Pinal County is at (520) 509-3555 and Town staff at (520) 866-8239 or (520) 866-8240.
Gas service depends on where you live
The City of Mesa's gas utility serves portions of San Tan Valley through its Magma service area. If you are on Mesa gas and smell gas, leave the house, then call 911 and City of Mesa Gas at 480-644-4277. If your gas comes from a different provider, call 911 and the utility listed on your gas bill once you are outside.
Compared with Phoenix
Phoenix homes get treated river water from one city utility. Here the water is well water from a private regulated utility or from Queen Creek, the houses are mostly recent, and permits run through a brand-new town backed by the county. Call the number on this page, give your neighborhood and describe the problem, and you will be connected with an independent plumber working in San Tan Valley who quotes you directly.
Common questions in San Tan Valley
Who provides water to my San Tan Valley home?
How hard is the water in San Tan Valley?
Where do I get a plumbing permit in San Tan Valley?
What number do I call for a gas leak in San Tan Valley?
Nearby cities and towns
Sources
- Wikipedia: San Tan Valley, Arizona
- Rose Law Group Reporter: Providers present plans for San Tan Valley water services
- Arizona Department of Environmental Quality: EPCOR
- EPCOR: San Tan water quality report (PDF)
- Pinal County: Town of San Tan Valley building services
- Pinal County: San Tan Valley transition news
- City of Mesa: Natural gas
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