What's in BUTTE SILVERBOW WATER DEPT's water?
BUTTE SILVERBOW WATER DEPT has a health-based violation on record, but none in the last five years - an older issue, not necessarily a current one. Population served: 33,000, over 12,958 connections.
How this compares nationally
89 total violations and 4 health-based ones put BUTTE SILVERBOW WATER DEPT at the 69th percentile nationally for violation burden, rank 3,958 of 12,903.
Against the MT average
BUTTE SILVERBOW WATER DEPT's 4 health-based violations sit within the MT average of 6.7, across 59 systems statewide. The filter guide explains what a violation like this actually calls for.
Most recent violation on record
BUTTE SILVERBOW WATER DEPT's most recent violation on record is dated 2025-01-10, with the most recent health-based one dated 2013-12-04. Last reported to EPA: 06/29/2026.
The concern categories on record
BUTTE SILVERBOW 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: 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 BUTTE SILVERBOW WATER DEPT's record does not cover
This is what BUTTE SILVERBOW 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 - 4 health-based violations on file for BUTTE SILVERBOW 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.