Is ARLINGTON WATER DEPT. (MWRA)'s water safe to drink?
ARLINGTON WATER DEPT. (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: 46,308, over 12,765 connections.
ARLINGTON WATER DEPT. (MWRA)'s record against the rest of the country
Out of 12,903 systems in this dataset, ARLINGTON WATER DEPT. (MWRA) ranks 4,490th by violation burden (65th percentile) - 7 violations total, 4 health-baseds.
How ARLINGTON WATER DEPT. (MWRA) compares within MA
MA's 283 covered systems average 7.0 health-based violations each; ARLINGTON WATER DEPT. (MWRA) carries 4, not 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 ARLINGTON WATER DEPT. (MWRA) is from 2020-01-01 (health-based: 1994-01-01). Last reported to EPA: 06/22/2026.
What kind of problem, specifically
ARLINGTON WATER DEPT. (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: 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 this data is and is not
Everything on this page is ARLINGTON WATER DEPT. (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 7 logged violations can see. The guide to what this data misses covers that gap.