MARSHALL COUNTY PSD 4: EPA violation history, explained
MARSHALL COUNTY PSD 4 had a health-based violation within the last five years. The required corrective action was reported, but it happened recently enough to matter. It serves 4,063 people through 1,739 service connections.
How this compares nationally
Out of 12,903 systems in this dataset, MARSHALL COUNTY PSD 4 ranks 2,600th by violation burden (80th percentile) - 58 violations total, 7 health-baseds.
Against the WV average
WV's 135 covered systems average 6.4 health-based violations each; MARSHALL COUNTY PSD 4 carries 7, more than typical for the state. The filter guide explains what a violation like this actually calls for.
Most recent violation on record
MARSHALL COUNTY PSD 4's most recent violation on record is dated 2027-01-02, with the most recent health-based one dated 2023-06-07. Last reported to EPA: 05/19/2026.
The concern categories on record
MARSHALL COUNTY PSD 4'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); Groundwater 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 MARSHALL COUNTY PSD 4's record does not cover
MARSHALL COUNTY PSD 4'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. Water quality can still change between the meter and the faucet - household plumbing sits outside what a record of 58 logged violations can see. The guide to what this data misses covers that gap.