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

COUNTY WATER-SYSTEM LEDGER

Hawaii, Hawaii

Compare active community water systems serving this county in EPA's public export. Systems can serve multiple places, so population totals may overlap.

Systems11active CWS · pop. 2,500+
Population served123,940reported total; may overlap
Current violation flag9.1%1 systems
Serious-violator flag0.0%0 systems

01 / SYSTEMS

Water systems serving Hawaii

Ordered by reported population served. Open any record for separate health, monitoring, notice, other, and serious-violator flags.

Water systemPopulation servedPrimary sourceCurrent export status
HiloHI000010139,477Ground waterNo current violation flagged
North KonaHI000013129,581Ground waterCurrent monitoring/reporting flag
WaikoloaHI000013512,100Ground waterNo current violation flagged
South KohalaHI00001309,612Surface waterNo current violation flagged
South KonaHI00001326,512Ground waterNo current violation flagged
Olaa-Mountain ViewHI00001126,467Ground waterNo current violation flagged
North KohalaHI00001294,933Ground waterNo current violation flagged
HainaHI00001614,563Ground waterNo current violation flagged
Hawaii Volcanoes Nat.ParkHI00001464,201Ground waterNo current violation flagged
Hawaiian BeachesHI00001173,546Ground waterNo current violation flagged
Waiohinu-NaalehuHI00001082,948Ground waterNo current violation flagged

02 / SOURCE MIX

Ground water10 systems · 114,328 served
Surface water1 systems · 9,612 served
How to read the population total

It is the sum of each listed system's reported population served, not a census estimate. Service areas can overlap and some systems list multiple cities or counties.