How hard is the water in Chandler?

Chandler water hardness ranges from 10.1-16.8 GPG (173-288 PPM), classified as "Hard" to "Very Hard." The wide range is due to over 30 groundwater wells that inject mineral-rich water directly into the distribution system.

Why does Chandler water hardness vary so much?

Chandler operates over 30 groundwater wells alongside surface water treatment plants. Neighborhoods near active wells experience harder water (up to 17 GPG), while areas fed directly by the Pecos plant see lower hardness (10-12 GPG). Your specific location matters significantly.

Where does Chandler get its water?

Chandler gets water from the Central Arizona Project (Colorado River), the Pecos Surface Water Treatment Plant, the Santan Vista plant (co-owned with Gilbert), and an extensive network of over 30 groundwater wells that supplement during peak demand.

Is Chandler water safe to drink?

Yes, Chandler water is safe to drink and meets all EPA and state safety standards. Chandler Public Works & Utilities publishes annual water quality reports confirming compliance with all regulations.

Do I need a water softener in Chandler?

With hardness potentially reaching 17 GPG near groundwater wells, most Chandler homes benefit from a water softener. Test your specific water first—if you're in a lower-hardness zone fed by the Pecos plant, you may have more flexibility.

Water Hardness in Chandler, AZ - 13 GPG (230 PPM)

What This Means For You

Chandler's water hardness varies significantly based on your location within the city. With over 30 groundwater wells feeding into the distribution system, your neighborhood's water could be anywhere from 10 to 17 GPG.

Chandler's water profile is defined by extensive use of groundwater wells to supplement surface flows. The city operates the Pecos Surface Water Treatment Plant and jointly owns the Santan Vista plant with Gilbert. Over 30 groundwater wells introduce high-mineral water directly into the distribution grid, creating significant neighborhood-level variation.

This means testing your specific water is especially important in Chandler. Citywide averages don't tell the whole story when neighborhood-level variation is this significant.

Water Hardness in Chandler, Arizona

What This Means For You

Hardness by Area

Frequently Asked Questions

Official Source