Is OAK HILL WATER ASSN's water safe to drink?
OAK HILL WATER ASSN has a health-based violation on record, but none in the last five years - an older issue, not necessarily a current one. Population served: 4,739, over 1,795 connections.
How this compares nationally
Out of 12,903 systems in this dataset, OAK HILL WATER ASSN ranks 5,746th by violation burden (55th percentile) - 131 violations total, 2 health-baseds.
Against the MS average
Among the 349 MS systems in this dataset, the average is 3.2 health-based violations - OAK HILL WATER ASSN's 2 is at or below that. See the lead and copper guide for why lead counts differently.
Most recent violation on record
OAK HILL WATER ASSN's most recent violation on record is dated 2015-01-11, with the most recent health-based one dated 2015-01-11. Last reported to EPA: 05/18/2026.
The concern categories on record
OAK HILL WATER ASSN'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 OAK HILL WATER ASSN's record does not cover
This is what OAK HILL WATER ASSN reported to its state primacy agency and EPA under the Safe Drinking Water Act - real regulatory record, not a lab test of your specific tap. Between the utility's meter and OAK HILL WATER ASSN's customers' taps is household plumbing, invisible to a system-level record ranked 5,746th of 12,903 by violation count. The guide to what this data misses covers that gap.