Water Quality: Hilo, HI

24 water systems • 118,171 people served

Multiple Health Violations
10
Total Violations
4
Health-Based Violations
24
Water Systems
118,171
Population Served

Water Quality Summary

Hilo has 4 health-based violations on record, meaning one or more contaminants were found above EPA-established safe levels. Contaminants involved: Disinfection Byproducts, Fecal Coliform. In total, 10 violations are on record for 24 water systems serving 118,171 people.

Contaminants Found

Disinfection Byproducts
Fecal Coliform

Water Systems Serving Hilo

System Name PWSID Source Population Violations
HILO HI0000101 Groundwater 39,477 1
NORTH KONA HI0000131 Groundwater 29,581 1
SOUTH KOHALA HI0000130 Surface Water 9,612 2
SOUTH KONA HI0000132 Groundwater 6,512 0
OLAA-MOUNTAIN VIEW HI0000112 Groundwater 6,467 0
NORTH KOHALA HI0000129 Groundwater 4,933 0
HAINA HI0000161 Groundwater 4,563 0
WAIOHINU-NAALEHU HI0000108 Groundwater 2,948 0
PAPAIKOU HI0000107 Groundwater 2,203 0
LALAMILO HI0000160 Groundwater 1,895 0
PAHOA HI0000111 Groundwater 1,885 0
PEPEEKEO HI0000106 Groundwater 1,450 0
PAHALA HI0000109 Groundwater 1,226 1
LAUPAHOEHOE-KAPEHU HI0000102 Groundwater 1,169 0
HAWAIIAN OCEAN VIEW ESTATES HI0000169 Groundwater 1,000 3
PAAUILO HI0000134 Groundwater 716 0
HONOMU HI0000105 Groundwater 645 0
KUKUIHAELE HI0000133 Groundwater 483 1
HAKALAU-WAILEA HI0000154 Groundwater 402 0
KALAPANA HI0000110 Groundwater 275 0
OOKALA (DWS) HI0000104 Groundwater 264 0
NIULII HI0000139 Groundwater 254 0
NINOLE HI0000103 Groundwater 151 0
PEPEEKEO WATER ASSOCIATION HI0000167 Groundwater 60 1

Concerned About Your Water?

A home water filter can remove common contaminants. NSF-certified filters are tested against EPA standards.

Consider a reverse osmosis system for comprehensive filtration or a carbon filter for basic improvement.

Data Sources

Drinking water violation data from the EPA Safe Drinking Water Information System (SDWIS). Data includes all recorded violations for active community water systems.

Verify at epa.govSearch ECHO for HI