DrinkingWaterCheck

Sidney City of, MT Water Quality

What's in Sidney City of's water?

Reporting violation only
0 health-based violations

Sidney City of's only violations on record are reporting or monitoring lapses, not a contaminant or treatment-technique failure EPA classifies as health-based. 5,000 people get their water from it, across 2,520 connections.

Ranked against every other system in this dataset

2 total violations and 0 health-based ones put Sidney City of at the 6th percentile nationally for violation burden, rank 12,066 of 12,903.

Against the MT average

Sidney City of's 0 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

Sidney City of's most recent violation on record is dated 2004-01-10. Last reported to EPA: 06/29/2026.

What Sidney City of's record does not cover

This is what Sidney City of 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 - 0 health-based violations on file for Sidney 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.