What's in LANCASTER WATER DEPARTMENT's water?
LANCASTER WATER DEPARTMENT has a health-based violation on record, but none in the last five years - an older issue, not necessarily a current one. It serves 6,000 people through 1,896 service connections.
How this compares nationally
LANCASTER WATER DEPARTMENT has 21 violations on record in total, 15 of thems health-based - ranking it 1,263th of 12,903 systems by violation count, the 90th percentile nationally.
How LANCASTER WATER DEPARTMENT compares within MA
Among the 283 MA systems in this dataset, the average is 7.0 health-based violations - LANCASTER WATER DEPARTMENT's 15 is above that. The clean-record guide covers what a comparison like this can hide.
Most recent violation on record
The last violation EPA has on record for LANCASTER WATER DEPARTMENT is from 2015-01-11 (health-based: 2015-01-11). Last reported to EPA: 06/22/2026.
What kind of problem, specifically
LANCASTER WATER DEPARTMENT'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
LANCASTER WATER DEPARTMENT'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 - 15 health-based violations on file for LANCASTER WATER DEPARTMENT - 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.