Kalaheo-Koloa, HI Water Quality
Is Kalaheo-Koloa's water safe to drink?
Kalaheo-Koloa's only violations on record are reporting or monitoring lapses, not a contaminant or treatment-technique failure EPA classifies as health-based. 12,660 people get their water from it, across 5,376 connections.
Ranked against every other system in this dataset
Kalaheo-Koloa has 3 violations on record in total, 0 of them health-based - ranking it 11,629th of 12,903 systems by violation count, the 10th percentile nationally.
Against the HI average
Kalaheo-Koloa's 0 health-based violations sit within the HI average of 8.2, across 48 systems statewide. The filter guide explains what a violation like this actually calls for.
Most recent violation on record
Kalaheo-Koloa's most recent violation on record is dated 2000-01-01. Last reported to EPA: 06/03/2026.
What Kalaheo-Koloa's record does not cover
Everything on this page is Kalaheo-Koloa's own reported record under the Safe Drinking Water Act - a regulatory filing, not a sample of your tap. This record - 0 health-based violations on file for Kalaheo-Koloa - stops at the meter and cannot see household plumbing on the other side of it. The guide to what this data misses covers that gap.