Scottsdale water by area

Scottsdale publishes hardness for three parts of the city, split at Indian School Road and Chaparral Road. All three read as very hard on the USGS scale.

Which one serves my home?

Find which side of Indian School Road and Chaparral Road your home is on.

South of Indian School Road

The part of Scottsdale south of Indian School Road. Source: Scottsdale 2026 Water Quality Report.

• 13-15 grains per gallon (230-260 mg/L) for approximate hardness, south of Indian School Rd, calendar year 2025. Source: Scottsdale 2026 Water Quality Report.

Published figures here run from 230 to 260 mg/L, which reads as very hard on the USGS scale.

Indian School Road to Chaparral Road

The part of Scottsdale between Indian School Road and Chaparral Road. Source: Scottsdale 2026 Water Quality Report.

• 13-17 grains per gallon (215-285 mg/L) for approximate hardness, Indian School Rd to Chaparral Rd, calendar year 2025. Source: Scottsdale 2026 Water Quality Report.

Published figures here run from 215 to 285 mg/L, which reads as very hard on the USGS scale.

North of Chaparral Road

The part of Scottsdale north of Chaparral Road. Source: Scottsdale 2026 Water Quality Report.

• 13-17 grains per gallon (230-290 mg/L) for approximate hardness, north of Chaparral Rd, calendar year 2025. Source: Scottsdale 2026 Water Quality Report.

Published figures here run from 230 to 290 mg/L, which reads as very hard on the USGS scale.

Across the 3 Scottsdale areas above, the figures run 215 to 290 mg/L, which sits in the USGS very hard class. Each is a plant, well or area figure, not a reading at one address. (USGS hardness classes)

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Sources last checked October 26, 2026. Scottsdale Water Systems is not a water utility.