Water Hardness in Chandler, Arizona
City of Chandler Public Works & Utilities
Utility-reported range
10.1–16.8 GPG
173–288 ppm as calcium carbonate
Source period
2025
Source checked 2026-09-15
What the local data tells you
The annual report provides a range, not an average or a neighbourhood map. The older utility FAQ lists a different range; this page uses the dated annual report.
Water sources listed for Chandler: Salt and Verde Rivers, Colorado River via CAP, and groundwater wells. Source blends, sampling locations and treatment can affect the hardness at a particular property.
The endpoints describe the range published by the utility. We do not treat the midpoint as a measured city average, or assign a value to an individual neighbourhood without supporting data.
Source and coverage
2025 Drinking Water Quality Consumer Confidence Report, page 3Public water system ID: AZ0407090
This is municipal water information, not a test of your home. Check the utility on your water bill, particularly near city boundaries or if you use a private well.
How we verify sources and handle estimatesChoosing a softener for your home
Start with a hardness test on the water entering the softener. Next, estimate the household water use that actually passes through it. Outdoor irrigation is usually a separate demand and should not automatically be included.
A softener needs enough usable exchange capacity between regenerations and enough service flow for fixtures used at the same time. The advertised grain capacity is not necessarily the capacity at an efficient salt setting. Compare the manufacturer's capacity and salt-dose table, ongoing salt use, installation requirements and warranty.