Water Hardness in Scottsdale, Arizona

Official water hardness data from Scottsdale Water

Hardness Level

15 GPG

260 PPM

Classification

Very Hard

Water Source

SRP + CAP

+ Groundwater

Last Updated

2024

CCR Report

What This Means For You

At 15 grains per gallon (GPG), Scottsdale has very hard water—similar to neighboring Phoenix. Scottsdale operates its own independent water utility with some of the strictest water softener regulations in Arizona.

Scottsdale Water operates independently from Phoenix, blending surface water from the Salt River Project and Central Arizona Project with local groundwater wells. The city has implemented aggressive water conservation measures, including restrictions on certain types of water softeners to protect reclaimed water quality.

Important: If you're considering a water softener in Scottsdale, you must use a demand-initiated (DIR) unit—time-clock softeners are prohibited. Check for available rebates before purchasing.

Hardness by Zone

South Zone (South of Indian School Road)13-15 GPG (230-260 PPM)
Central Zone (Indian School to Chaparral)13-17 GPG (215-285 PPM)
North Zone (North of Chaparral Road)13-17 GPG (230-290 PPM)

Frequently Asked Questions

Official Source

Data from Scottsdale Water Consumer Confidence Report.

View Official Water Quality Report →