What's in ACTON WATER SUPPLY DISTRICT's water?
ACTON WATER SUPPLY DISTRICT has a health-based violation on record, but none in the last five years - an older issue, not necessarily a current one. It serves 21,285 people through 6,905 service connections.
Ranked against every other system in this dataset
72 total violations and 20 health-based ones put ACTON WATER SUPPLY DISTRICT at the 93th percentile nationally for violation burden, rank 884 of 12,903.
How ACTON WATER SUPPLY DISTRICT compares within MA
MA's 283 covered systems average 7.0 health-based violations each; ACTON WATER SUPPLY DISTRICT carries 20, more than typical for the state. 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 ACTON WATER SUPPLY DISTRICT is from 2024-01-03 (health-based: 2014-01-12). Last reported to EPA: 06/22/2026.
What kind of problem, specifically
ACTON WATER SUPPLY 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 this data is and is not
ACTON WATER SUPPLY DISTRICT's numbers here come from its own required reporting to EPA under the Safe Drinking Water Act, not from an independent test of your glass of water. This record - 20 health-based violations on file for ACTON WATER SUPPLY DISTRICT - stops at the meter and cannot see household plumbing on the other side of it. The guide to what this data misses covers that gap.