Is CITY OF BAY ST LOUIS's water safe to drink?
CITY OF BAY ST LOUIS 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 9,284 people through 3,847 service connections.
Ranked against every other system in this dataset
202 total violations and 8 health-based ones put CITY OF BAY ST LOUIS at the 82th percentile nationally for violation burden, rank 2,289 of 12,903.
Against the MS average
CITY OF BAY ST LOUIS's 8 health-based violations sit above the MS average of 3.2, across 349 systems statewide. The filter guide explains what a violation like this actually calls for.
Most recent violation on record
CITY OF BAY ST LOUIS's most recent violation on record is dated 2026-03-05, with the most recent health-based one dated 2024-01-10. Last reported to EPA: 05/18/2026.
The concern categories on record
CITY OF BAY ST LOUIS'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)
- Disinfection byproducts - flagged from: TTHM
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 CITY OF BAY ST LOUIS's record does not cover
Everything on this page is CITY OF BAY ST LOUIS'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 CITY OF BAY ST LOUIS's customers' taps is household plumbing, invisible to a system-level record ranked 2,289th of 12,903 by violation count. The guide to what this data misses covers that gap.