What's in HIGHLINE WATER DISTRICT's water?
HIGHLINE WATER DISTRICT has a health-based violation on record, but none in the last five years - an older issue, not necessarily a current one. Population served: 100,170, over 29,544 connections.
How this compares nationally
HIGHLINE WATER DISTRICT has 3 violations on record in total, 3 of thems health-based - ranking it 5,605th of 12,903 systems by violation count, the 57th percentile nationally.
Against the WA average
WA's 322 covered systems average 3.7 health-based violations each; HIGHLINE WATER DISTRICT carries 3, not more than typical for the state. The filter guide explains what a violation like this actually calls for.
Most recent violation on record
HIGHLINE WATER DISTRICT's most recent violation on record is dated 1992-01-01, with the most recent health-based one dated 1992-01-01. Last reported to EPA: 06/19/2026.
The concern categories on record
HIGHLINE WATER DISTRICT'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 HIGHLINE WATER DISTRICT's record does not cover
Everything on this page is HIGHLINE WATER DISTRICT'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 HIGHLINE WATER DISTRICT's customers' taps is household plumbing, invisible to a system-level record ranked 5,605th of 12,903 by violation count. The guide to what this data misses covers that gap.