EPA EXPORT · 13 SEP 2026FEDERAL COMPLIANCE RECORDS · NOT A HOME WATER TEST
TAP WATERLEDGERPublic system compliance records

STATE / TERRITORY LEDGER

Guam drinking water system records

EPA compliance fields for active community water systems reporting at least 2,500 people served.

Systems5active CWS · pop. 2,500+
Population served186,886reported total; may overlap
Current violation flag0.0%0 systems
Serious-violator flag0.0%0 systems

01 / LARGEST SYSTEMS

Community water systems in Guam

Population served is a system-reported service figure. It is not a count of unique state residents.

Water systemPopulation servedPrimary sourceCurrent export status
Gwa Northern Water SystemGU0000006139,207Ground waterNo current violation flagged
Gwa Central Water SystemGU000000321,398Surface water purchasedNo current violation flagged
U.S. Navy Water SystemGU000001012,780Surface waterNo current violation flagged
Andersen Air Force Base Water SystemGU00000097,700Ground waterNo current violation flagged
Gwa Southern Water SystemGU00000015,801Surface waterNo current violation flagged