County Water Quality Report

Riverside County, California

12 public water systems serving 2,497,716 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 12
Population served 2,497,716
Most recent test 2024

Top water quality concerns in Riverside County

  • Haloacetic acids (HAA5) significantly above health guidelinein 9 of 12 utilities
  • Perfluorohexane sulfonate (PFHXS) significantly above health guidelinein 7 of 12 utilities
  • Chromium (hexavalent) significantly above health guidelinein 6 of 12 utilities
  • Arsenic significantly above health guidelinein 6 of 12 utilities
  • PFAS contaminationin 6 of 12 utilities

All utilities in Riverside County

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

C
71/100

BEAUMONT CHERRY VALLEY WD

BEAUMONT · 66,841 residents

Top concern: Haloacetic acids (HAA5) significantly above health guideline

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C
67/100

WESTERN MWD

RIVERSIDE · 86,062 residents

Top concern: Haloacetic acids (HAA5) significantly above health guideline

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C
65/100

INDIO WATER AUTHORITY

INDIO · 84,757 residents

Top concern: Chromium (hexavalent) significantly above health guideline

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D
64/100

DESERT WATER AGENCY

PALM SPRINGS · 74,807 residents

Top concern: Haloacetic acids (HAA5) significantly above health guideline

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D
60/100

COACHELLA VWD: COVE COMMUNITY

PALM DESERT · 270,000 residents

Top concern: Haloacetic acids (HAA5) significantly above health guideline

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D
56/100

Riverside Water Authority

Riverside · 331,000 residents

Top concern: Arsenic significantly above health guideline

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F
50/100

EASTERN MUNICIPAL WD

PERRIS · 666,581 residents

Top concern: PFAS contamination

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F
50/100

JURUPA COMMUNITY SD

JURUPA VALLEY · 135,093 residents

Top concern: PFAS contamination

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F
47/100

ELSINORE VALLEY MWD

LAKE ELSINORE · 169,455 residents

Top concern: PFAS contamination

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F
47/100

CORONA, CITY OF

CORONA · 168,575 residents

Top concern: PFAS contamination

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F
47/100

RANCHO CALIFORNIA WATER DISTRICT

TEMECULA · 146,147 residents

Top concern: PFAS contamination

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F
46/100

RIVERSIDE, CITY OF

RIVERSIDE · 298,398 residents

Top concern: PFAS contamination

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