Hnl-Windward-Pearl Harbor, HI Water Quality
Is Hnl-Windward-Pearl Harbor's water safe to drink?
Hnl-Windward-Pearl Harbor has a health-based violation on record, but none in the last five years - an older issue, not necessarily a current one. It serves 631,389 people through 106,491 service connections.
Hnl-Windward-Pearl Harbor's record against the rest of the country
Hnl-Windward-Pearl Harbor has 44 violations on record in total, 1 of them health-based - ranking it 7,487th of 12,903 systems by violation count, the 42th percentile nationally.
How Hnl-Windward-Pearl Harbor compares within HI
Hnl-Windward-Pearl Harbor's 1 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
The last violation EPA has on record for Hnl-Windward-Pearl Harbor is from 2013-01-10 (health-based: 2013-01-10). Last reported to EPA: 06/03/2026.
What kind of problem, specifically
Hnl-Windward-Pearl Harbor's flagged contaminants and rule violations, grouped by what they actually mean for a filter choice rather than left as EPA's raw code list:
- Microbial contamination / treatment technique - flagged from: Coliform (TCR)
The most severe category on record is microbial contamination / treatment technique, which points toward a microbial-class filter if you want to address it directly.
What this data is and is not
Everything on this page is Hnl-Windward-Pearl Harbor's own reported record under the Safe Drinking Water Act - a regulatory filing, not a sample of your tap. Between the utility's meter and Hnl-Windward-Pearl Harbor's customers' taps is household plumbing, invisible to a system-level record ranked 7,487th of 12,903 by violation count. The guide to what this data misses covers that gap.