Water Softeners & Filtration in San Tan Valley, AZ

Most San Tan Valley homes get their water from EPCOR (formerly Johnson Utilities), and it's all groundwater running about 15 to 18 grains per gallon. That's among the hardest water we see in the East Valley.

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San Tan Valley water • At a glance

What's in San Tan Valley's Tap Water

EPCOR runs two systems in the area, San Tan and San Tan Anthem, both on groundwater wells. Which one serves your home depends on your address.

15–18 gpg

Hardness
EPCOR San Tan system, 2025 (about 256–308 mg/L)

17–18 gpg

San Tan Anthem
EPCOR San Tan Anthem system, 2025

Groundwater

Water source
Both EPCOR systems run on wells

Chlorine

Disinfectant
Reduced by carbon filtration for taste and smell

Source: EPCOR San Tan 2025 Water Quality Report; EPCOR San Tan Anthem 2025 Water Quality Report. Numbers vary by neighborhood and season; we confirm with a test at your home.

For San Tan Valley homes

What San Tan Valley's Water Means for Your Home

Very hard, all yearGroundwater doesn't swing with the seasons the way river water does. At 15 to 18 gpg, a softener works hard, so sizing matters.
Newer homesMany San Tan Valley homes are newer builds with a softener loop in the garage, which makes the install simple.
Acreage and wellsSome properties are on private wells. We test and plan treatment for what's in your well.

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Our services • Water treatment for East Valley homes

Water Treatment Services in San Tan Valley, AZ

Every service we offer is available across San Tan Valley.

Water Softener Systems

Reduce the hard-water minerals behind white spots, crusty faucets, stiff laundry and scale in your water heater. East Valley water is very hard, so this is where most homes start.

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