County Water Quality Report

Monterey County, California

3 public water systems serving 272,382 residents

Data sources: EPA SDWIS EPA ECHO EWG Tap Water Database Utility CCRs ⓘ How did we get these ratings?
County average grade
F
56/100
Utilities rated 3
Population served 272,382

Top water quality concerns in Monterey County

  • Arsenic significantly above health guidelinein 3 of 3 utilities
  • Haloacetic acids (HAA5) significantly above health guidelinein 2 of 3 utilities
  • Chromium (hexavalent) significantly above health guidelinein 2 of 3 utilities
  • PFAS contaminationin 1 of 3 utilities
  • Perfluorohexane sulfonate (PFHXS) significantly above health guidelinein 1 of 3 utilities

All utilities in Monterey County

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

D
63/100

ALCO WATER SERVICE

SALINAS · 56,253 residents

Top concern: Arsenic significantly above health guideline

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D
60/100

CWSC SALINAS

SAN JOSE · 123,679 residents

Top concern: Arsenic significantly above health guideline

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F
46/100

CAL AM WATER COMPANY - MONTEREY

PACIFIC GROVE · 92,450 residents

Top concern: PFAS contamination

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