What's in SUDBURY WATER DISTRICT's water?
SUDBURY WATER DISTRICT had a health-based violation within the last five years. The required corrective action was reported, but it happened recently enough to matter. Population served: 18,416, over 6,288 connections.
Ranked against every other system in this dataset
SUDBURY WATER DISTRICT has 197 violations on record in total, 10 of thems health-based - ranking it 1,870th of 12,903 systems by violation count, the 86th percentile nationally.
Against the MA average
Among the 283 MA systems in this dataset, the average is 7.0 health-based violations - SUDBURY WATER DISTRICT's 10 is above that. The clean-record guide covers what a comparison like this can hide.
Most recent violation on record
SUDBURY WATER DISTRICT's most recent violation on record is dated 2025-01-08, with the most recent health-based one dated 2025-01-08. Last reported to EPA: 06/22/2026.
The concern categories on record
SUDBURY WATER DISTRICT'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 SUDBURY WATER DISTRICT's record does not cover
SUDBURY WATER DISTRICT'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. This record - 10 health-based violations on file for SUDBURY WATER DISTRICT - 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.