What's in SOUTHBOROUGH DPW WATER DIVISION (MWRA)'s water?
SOUTHBOROUGH DPW 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. 10,638 people get their water from it, across 3,340 connections.
Ranked against every other system in this dataset
Out of 12,903 systems in this dataset, SOUTHBOROUGH DPW WATER DIVISION (MWRA) ranks 3,837th by violation burden (70th percentile) - 6 violations total, 5 health-baseds.
Against the MA average
SOUTHBOROUGH DPW WATER DIVISION (MWRA)'s 5 health-based violations sit within the MA average of 7.0, across 283 systems statewide. See the lead and copper guide for why lead counts differently.
Most recent violation on record
SOUTHBOROUGH DPW WATER DIVISION (MWRA)'s most recent violation on record is dated 2006-01-08, with the most recent health-based one dated 2006-01-08. Last reported to EPA: 06/22/2026.
The concern categories on record
SOUTHBOROUGH DPW 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:
- Microbial contamination / treatment technique - flagged from: Coliform (TCR); Surface Water Treatment Rule
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 SOUTHBOROUGH DPW WATER DIVISION (MWRA)'s record does not cover
This is what SOUTHBOROUGH DPW WATER DIVISION (MWRA) 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. This record - 5 health-based violations on file for SOUTHBOROUGH DPW WATER DIVISION (MWRA) - 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.