What's in HANSCOM AFB's water?
HANSCOM AFB has a health-based violation on record, but none in the last five years - an older issue, not necessarily a current one. Population served: 11,789, over 203 connections.
How this compares nationally
25 total violations and 19 health-based ones put HANSCOM AFB at the 93th percentile nationally for violation burden, rank 968 of 12,903.
Against the MA average
MA's 283 covered systems average 7.0 health-based violations each; HANSCOM AFB carries 19, more than typical for the state. See the lead and copper guide for why lead counts differently.
Most recent violation on record
HANSCOM AFB's most recent violation on record is dated 2020-01-10, with the most recent health-based one dated 2019-01-10. Last reported to EPA: 06/22/2026.
The concern categories on record
HANSCOM AFB'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); Revised Total Coliform 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 HANSCOM AFB's record does not cover
Everything on this page is HANSCOM AFB's own reported record under the Safe Drinking Water Act - a regulatory filing, not a sample of your tap. This record - 19 health-based violations on file for HANSCOM AFB - 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.