County Water Quality Report

Solano County, California

3 public water systems serving 341,447 residents

Data sources: EPA SDWIS EPA ECHO EWG Tap Water Database Utility CCRs ⓘ How did we get these ratings?
County average grade
D
61/100
Utilities rated 3
Population served 341,447

Top water quality concerns in Solano County

  • Haloacetic acids (HAA5) significantly above health guidelinein 2 of 3 utilities
  • Haloacetic acids (HAA9) significantly above health guidelinein 2 of 3 utilities
  • Total trihalomethanes (TTHMs) significantly above health guidelinein 2 of 3 utilities
  • Arsenic detectedin 1 of 3 utilities
  • PFAS contaminationin 1 of 3 utilities

All utilities in Solano County

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

C
67/100

CITY OF FAIRFIELD

FAIRFIELD · 120,377 residents

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

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C
65/100

CITY OF VALLEJO

VALLEJO · 121,420 residents

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

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F
50/100

CITY OF VACAVILLE

VACAVILLE · 99,650 residents

Top concern: PFAS contamination

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