Is ROCHESTER WATER DEPT's water safe to drink?
ROCHESTER WATER DEPT had a health-based violation within the last five years. The required corrective action was reported, but it happened recently enough to matter. 25,000 people get their water from it, across 7,500 connections.
ROCHESTER WATER DEPT's record against the rest of the country
ROCHESTER WATER DEPT has 14 violations on record in total, 9 of thems health-based - ranking it 2,241th of 12,903 systems by violation count, the 83th percentile nationally.
Against the NH average
ROCHESTER WATER DEPT's 9 health-based violations sit above the NH average of 8.6, across 62 systems statewide. See the lead and copper guide for why lead counts differently.
Most recent violation on record
ROCHESTER WATER DEPT's most recent violation on record is dated 2022-01-01, with the most recent health-based one dated 2022-01-01. Last reported to EPA: 06/23/2026.
The concern categories on record
ROCHESTER 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: TTHM; 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 ROCHESTER WATER DEPT's record does not cover
This is what ROCHESTER WATER DEPT reported to its state primacy agency and EPA under the Safe Drinking Water Act - real regulatory record, not a lab test of your specific tap. This record - 9 health-based violations on file for ROCHESTER WATER DEPT - 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.