LANCASTER WATER DEPT: EPA violation history, explained
LANCASTER WATER DEPT has a health-based violation on record, but none in the last five years - an older issue, not necessarily a current one. It serves 2,500 people through 934 service connections.
LANCASTER WATER DEPT's record against the rest of the country
LANCASTER WATER DEPT has 44 violations on record in total, 7 of thems health-based - ranking it 2,624th of 12,903 systems by violation count, the 80th percentile nationally.
Against the NH average
Among the 62 NH systems in this dataset, the average is 8.6 health-based violations - LANCASTER WATER DEPT's 7 is at or below that. See the lead and copper guide for why lead counts differently.
Most recent violation on record
LANCASTER WATER DEPT's most recent violation on record is dated 2018-01-07, with the most recent health-based one dated 2018-01-07. Last reported to EPA: 06/23/2026.
The concern categories on record
LANCASTER WATER DEPT'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); Surface Water Treatment Rule
- Disinfection byproducts - flagged from: Total Haloacetic Acids (HAA5)
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 LANCASTER WATER DEPT's record does not cover
LANCASTER WATER DEPT'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. Between the utility's meter and LANCASTER WATER DEPT's customers' taps is household plumbing, invisible to a system-level record ranked 2,624th of 12,903 by violation count. The guide to what this data misses covers that gap.