County Water Quality Report

El Dorado County, California

2 public water systems serving 232,171 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 2
Population served 232,171

Top water quality concerns in El Dorado County

  • Haloacetic acids (HAA9) significantly above health guidelinein 1 of 2 utilities
  • Haloacetic acids (HAA5) significantly above health guidelinein 1 of 2 utilities
  • Total trihalomethanes (TTHMs) significantly above health guidelinein 1 of 2 utilities
  • PFAS contaminationin 1 of 2 utilities
  • Arsenic significantly above health guidelinein 1 of 2 utilities

All utilities in El Dorado County

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

C
65/100

EL DORADO ID - MAIN

PLACERVILLE · 132,171 residents

Top concern: Haloacetic acids (HAA9) significantly above health guideline

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F
48/100

SOUTH TAHOE PUD - MAIN

SOUTH LAKE TAHOE · 100,000 residents

Top concern: PFAS contamination

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