MO AMERICAN ST LOUIS ST CHARLES COUNTIES: EPA violation history, explained
MO AMERICAN ST LOUIS ST CHARLES COUNTIES has a health-based violation on record, but none in the last five years - an older issue, not necessarily a current one. It serves 1,111,000 people through 376,501 service connections.
How this compares nationally
MO AMERICAN ST LOUIS ST CHARLES COUNTIES has 3 violations on record in total, 2 of thems health-based - ranking it 6,980th of 12,903 systems by violation count, the 46th percentile nationally.
How MO AMERICAN ST LOUIS ST CHARLES COUNTIES compares within MO
Among the 327 MO systems in this dataset, the average is 6.1 health-based violations - MO AMERICAN ST LOUIS ST CHARLES COUNTIES's 2 is at or below that. See the lead and copper guide for why lead counts differently.
Most recent violation on record
The last violation EPA has on record for MO AMERICAN ST LOUIS ST CHARLES COUNTIES is from 2010-01-06 (health-based: 2010-01-06). Last reported to EPA: 06/16/2026.
What kind of problem, specifically
MO AMERICAN ST LOUIS ST CHARLES COUNTIES'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: Interim Enhanced Surface Water Treatment Rule
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
MO AMERICAN ST LOUIS ST CHARLES COUNTIES's numbers here come from its own required reporting to EPA under the Safe Drinking Water Act, not from an independent test of your glass of water. Between the utility's meter and MO AMERICAN ST LOUIS ST CHARLES COUNTIES's customers' taps is household plumbing, invisible to a system-level record ranked 6,980th of 12,903 by violation count. The guide to what this data misses covers that gap.