County Water Quality Report

Santa Cruz County, California

2 public water systems serving 159,857 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 159,857

Top water quality concerns in Santa Cruz County

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

All utilities in Santa Cruz County

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

D
57/100

SANTA CRUZ WATER DEPARTMENT

SANTA CRUZ · 94,626 residents

Top concern: PFAS contamination

View report →
D
55/100

WATSONVILLE, CITY OF

WATSONVILLE · 65,231 residents

Top concern: PFAS contamination

View report →