What's in ST LOUIS CITY PWS's water?

ST LOUIS CITY PWS's only violations on record are reporting or monitoring lapses, not a contaminant or treatment-technique failure EPA classifies as health-based. It serves 304,709 people through 96,080 service connections.

How this compares nationally

ST LOUIS CITY PWS has 10 violations on record in total, 0 of thems health-based - ranking it 10,432th of 12,903 systems by violation count, the 19th percentile nationally.

Against the MO average

ST LOUIS CITY PWS's 0 health-based violations sit within the MO average of 6.1, across 327 systems statewide. The clean-record guide covers what a comparison like this can hide.

Most recent violation on record

ST LOUIS CITY PWS's most recent violation on record is dated 2027-06-12. Last reported to EPA: 06/16/2026.

What ST LOUIS CITY PWS's record does not cover

Everything on this page is ST LOUIS CITY 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 ST LOUIS CITY PWS's customers' taps is household plumbing, invisible to a system-level record ranked 10,432th of 12,903 by violation count. The guide to what this data misses covers that gap.