COHASSET WATER DEPT: EPA violation history, explained
COHASSET WATER DEPT has a health-based violation on record, but none in the last five years - an older issue, not necessarily a current one. Population served: 7,555, over 2,692 connections.
COHASSET WATER DEPT's record against the rest of the country
48 total violations and 2 health-based ones put COHASSET WATER DEPT at the 54th percentile nationally for violation burden, rank 5,929 of 12,903.
How COHASSET WATER DEPT compares within MA
Among the 283 MA systems in this dataset, the average is 7.0 health-based violations - COHASSET WATER DEPT's 2 is at or below that. 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 COHASSET WATER DEPT is from 2022-01-07 (health-based: 2008-01-04). Last reported to EPA: 06/22/2026.
What kind of problem, specifically
COHASSET WATER DEPT'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:
- Lead & copper - flagged from: Lead and Copper Rule
- Microbial contamination / treatment technique - flagged from: Coliform (TCR)
The most severe category on record is lead & copper, which points toward a lead-class filter if you want to address it directly.
What this data is and is not
COHASSET WATER DEPT'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. Water quality can still change between the meter and the faucet - household plumbing sits outside what a record of 48 logged violations can see. The guide to what this data misses covers that gap.