Is LEWISTON CITY OF's water safe to drink?
LEWISTON CITY OF has a health-based violation on record, but none in the last five years - an older issue, not necessarily a current one. 15,001 people get their water from it, across 5,963 connections.
How this compares nationally
44 total violations and 1 health-based ones put LEWISTON CITY OF at the 42th percentile nationally for violation burden, rank 7,490 of 12,903.
How LEWISTON CITY OF compares within ID
Among the 88 ID systems in this dataset, the average is 10.3 health-based violations - LEWISTON CITY OF's 1 is at or below that. The filter guide explains what a violation like this actually calls for.
Most recent violation on record
The last violation EPA has on record for LEWISTON CITY OF is from 2023-01-01 (health-based: 2002-01-10). Last reported to EPA: 06/26/2026.
What kind of problem, specifically
LEWISTON CITY OF'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
Everything on this page is LEWISTON CITY OF's own reported record under the Safe Drinking Water Act - a regulatory filing, not a sample of your tap. This record - 1 health-based violation on file for LEWISTON CITY OF - 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.