CHARLESTON PWS: EPA violation history, explained
CHARLESTON PWS has a health-based violation on record, but none in the last five years - an older issue, not necessarily a current one. It serves 5,900 people through 1,450 service connections.
Ranked against every other system in this dataset
CHARLESTON PWS has 4 violations on record in total, 1 of them health-based - ranking it 8,874th of 12,903 systems by violation count, the 31th percentile nationally.
How CHARLESTON PWS compares within MO
MO's 327 covered systems average 6.1 health-based violations each; CHARLESTON PWS 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 CHARLESTON PWS is from 2021-01-07 (health-based: 1999-01-09). Last reported to EPA: 06/16/2026.
What kind of problem, specifically
CHARLESTON PWS'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 CHARLESTON PWS'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 CHARLESTON PWS's customers' taps is household plumbing, invisible to a system-level record ranked 8,874th of 12,903 by violation count. The guide to what this data misses covers that gap.