County Water Quality Report

Pinal County, Arizona

4 public water systems serving 367,922 residents

Data sources: EPA SDWIS EPA ECHO EWG Tap Water Database Utility CCRs ⓘ How did we get these ratings?
County average grade
D
60/100
Utilities rated 4
Population served 367,922

Top water quality concerns in Pinal County

  • Arsenic significantly above health guidelinein 4 of 4 utilities
  • Chromium (hexavalent) significantly above health guidelinein 4 of 4 utilities
  • Total trihalomethanes (TTHMs) significantly above health guidelinein 2 of 4 utilities
  • Perfluorohexane sulfonate (PFHXS) significantly above health guidelinein 1 of 4 utilities
  • Nitrate and nitrite significantly above health guidelinein 1 of 4 utilities

All utilities in Pinal County

Click any utility for full grade card, contaminant data, and treatment plant contact info.

D
63/100

ARIZONA WATER CO - APACHE JUNCTION

APACHE JUNCTION · 62,055 residents

Top concern: Arsenic significantly above health guideline

View report →
D
61/100

ARIZONA WATER CO - PINAL VALLEY

CASA GRANDE · 134,432 residents

Top concern: Perfluorohexane sulfonate (PFHXS) significantly above health guideline

View report →
D
58/100

EPCOR - SAN TAN

JOHNSON RANCH · 87,435 residents

Top concern: Arsenic significantly above health guideline

View report →
D
58/100

GW SANTA CRUZ WATER CO

MARICOPA · 84,000 residents

Top concern: Arsenic significantly above health guideline

View report →