ST. LOUIS, CITY OF: EPA violation history, explained
ST. LOUIS, CITY OF has a health-based violation on record, but none in the last five years - an older issue, not necessarily a current one. It serves 6,976 people through 1,340 service connections.
ST. LOUIS, CITY OF's record against the rest of the country
ST. LOUIS, CITY OF has 4 violations on record in total, 1 of them health-based - ranking it 8,863th of 12,903 systems by violation count, the 31th percentile nationally.
How ST. LOUIS, CITY OF compares within MI
MI's 390 covered systems average 1.3 health-based violations each; ST. LOUIS, CITY OF carries 1, not more than typical for the state. See the lead and copper guide for why lead counts differently.
Most recent violation on record
The last violation EPA has on record for ST. LOUIS, CITY OF is from 2017-01-10 (health-based: 2001-01-08). Last reported to EPA: 06/23/2026.
What kind of problem, specifically
ST. LOUIS, 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 ST. LOUIS, CITY OF's own reported record under the Safe Drinking Water Act - a regulatory filing, not a sample of your tap. Between the utility's meter and ST. LOUIS, CITY OF's customers' taps is household plumbing, invisible to a system-level record ranked 8,863th of 12,903 by violation count. The guide to what this data misses covers that gap.