Is OAK BLUFFS WATER DISTRICT's water safe to drink?
OAK BLUFFS 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: 24,000, over 4,628 connections.
How this compares nationally
OAK BLUFFS WATER DISTRICT has 102 violations on record in total, 18 of thems health-based - ranking it 983th of 12,903 systems by violation count, the 92th percentile nationally.
Against the MA average
Among the 283 MA systems in this dataset, the average is 7.0 health-based violations - OAK BLUFFS WATER DISTRICT's 18 is above that. The filter guide explains what a violation like this actually calls for.
Most recent violation on record
OAK BLUFFS WATER DISTRICT's most recent violation on record is dated 2015-01-07, with the most recent health-based one dated 2013-01-06. Last reported to EPA: 06/22/2026.
The concern categories on record
OAK BLUFFS 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 OAK BLUFFS WATER DISTRICT's record does not cover
Everything on this page is OAK BLUFFS WATER DISTRICT'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 102 logged violations can see. The guide to what this data misses covers that gap.