WINTHROP WATER DIVISION, (MWRA): EPA violation history, explained
WINTHROP WATER DIVISION, (MWRA) has a health-based violation on record, but none in the last five years - an older issue, not necessarily a current one. 19,316 people get their water from it, across 4,547 connections.
Ranked against every other system in this dataset
WINTHROP WATER DIVISION, (MWRA) has 11 violations on record in total, 8 of thems health-based - ranking it 2,502th of 12,903 systems by violation count, the 81th percentile nationally.
Against the MA average
MA's 283 covered systems average 7.0 health-based violations each; WINTHROP WATER DIVISION, (MWRA) carries 8, more than typical for the state. The filter guide explains what a violation like this actually calls for.
Most recent violation on record
WINTHROP WATER DIVISION, (MWRA)'s most recent violation on record is dated 2024-01-01, with the most recent health-based one dated 2015-01-10. Last reported to EPA: 06/22/2026.
The concern categories on record
WINTHROP WATER DIVISION, (MWRA)'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); Surface Water Treatment Rule
The most severe category on record is lead & copper, which points toward a lead-class filter if you want to address it directly.
What WINTHROP WATER DIVISION, (MWRA)'s record does not cover
WINTHROP WATER DIVISION, (MWRA)'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. Between the utility's meter and WINTHROP WATER DIVISION, (MWRA)'s customers' taps is household plumbing, invisible to a system-level record ranked 2,502th of 12,903 by violation count. The guide to what this data misses covers that gap.