Water Quality: Wailuku, HI

18 water systems • 142,982 people served

Multiple Health Violations
9
Total Violations
5
Health-Based Violations
18
Water Systems
142,982
Population Served

Water Quality Summary

Wailuku has 5 health-based violations on record, meaning one or more contaminants were found above EPA-established safe levels. Contaminants involved: Disinfection Byproducts, Fecal Coliform, Stage 2 DBP. In total, 9 violations are on record for 18 water systems serving 142,982 people.

Contaminants Found

Disinfection Byproducts
Fecal Coliform
Stage 2 DBP

Water Systems Serving Wailuku

System Name PWSID Source Population Violations
WAILUKU HI0000212 Surface Water 74,511 0
MAKAWAO HI0000213 Surface Water 29,868 1
LAHAINA HI0000214 Surface Water 20,065 4
UPPER KULA HI0000215 Surface Water 7,686 0
KAUNAKAKAI HI0000234 Groundwater 3,702 0
LOWER KULA HI0000247 Surface Water 3,522 2
HANA HI0000217 Groundwater 1,284 0
UALAPUE HI0000233 Groundwater 1,119 0
KALAE HI0000235 Groundwater 360 0
KEANAE HI0000219 Groundwater 270 0
KAHAKULOA WATER CO. HI0000249 Groundwater 150 1
NAHIKU HI0000220 Groundwater 107 0
MAUNAOLU PLANTATION HI0000254 Groundwater 100 0
KULA NANI HI0000255 Surface Water 80 0
WEST KUIAHA MEADOWS HI0000252 Groundwater 60 0
HONOKOHAU HI0000218 Groundwater 42 0
VILLA ROSE HI0000374 Groundwater 30 1
MAUI HIGHLANDS HI0000256 Groundwater 26 0

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