County Water Quality Report

Guam County, GU

1 public water system serving 139,207 residents

Data sources: EPA SDWIS EPA ECHO EWG Tap Water Database Utility CCRs ⓘ How did we get these ratings?

County average grade

98/100

Utilities rated 1

Population served 139,207

All utilities in Guam County

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

TALOFOFO · 139,207 residents

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