HIGHLAND WATER WORKS: EPA violation history, explained
HIGHLAND WATER WORKS has a health-based violation on record, but none in the last five years - an older issue, not necessarily a current one. It serves 23,984 people through 9,640 service connections.
Ranked against every other system in this dataset
Out of 12,903 systems in this dataset, HIGHLAND WATER WORKS ranks 4,496th by violation burden (65th percentile) - 7 violations total, 4 health-baseds.
Against the IN average
Among the 283 IN systems in this dataset, the average is 2.9 health-based violations - HIGHLAND WATER WORKS's 4 is above that. See the lead and copper guide for why lead counts differently.
Most recent violation on record
HIGHLAND WATER WORKS's most recent violation on record is dated 2017-01-10, with the most recent health-based one dated 2013-01-07. Last reported to EPA: 06/30/2026.
The concern categories on record
HIGHLAND WATER WORKS'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 HIGHLAND WATER WORKS's record does not cover
Everything on this page is HIGHLAND WATER WORKS's own reported record under the Safe Drinking Water Act - a regulatory filing, not a sample of your tap. Water quality can still change between the meter and the faucet - household plumbing sits outside what a record of 7 logged violations can see. The guide to what this data misses covers that gap.