What's in NORTHBOROUGH WATER DEPARTMENT (MWRA)'s water?
NORTHBOROUGH WATER DEPARTMENT (MWRA) has a health-based violation on record, but none in the last five years - an older issue, not necessarily a current one. Population served: 13,551, over 4,283 connections.
NORTHBOROUGH WATER DEPARTMENT (MWRA)'s record against the rest of the country
217 total violations and 10 health-based ones put NORTHBOROUGH WATER DEPARTMENT (MWRA) at the 86th percentile nationally for violation burden, rank 1,867 of 12,903.
How NORTHBOROUGH WATER DEPARTMENT (MWRA) compares within MA
Among the 283 MA systems in this dataset, the average is 7.0 health-based violations - NORTHBOROUGH WATER DEPARTMENT (MWRA)'s 10 is above that. See the lead and copper guide for why lead counts differently.
Most recent violation on record
The last violation EPA has on record for NORTHBOROUGH WATER DEPARTMENT (MWRA) is from 2010-01-10 (health-based: 1999-01-09). Last reported to EPA: 06/22/2026.
What kind of problem, specifically
NORTHBOROUGH WATER DEPARTMENT (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)
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
Everything on this page is NORTHBOROUGH WATER DEPARTMENT (MWRA)'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 217 logged violations can see. The guide to what this data misses covers that gap.