Shelby County Pwsd 1, MO Water Quality
Shelby County Pwsd 1: EPA violation history, explained
Shelby County Pwsd 1's only violations on record are reporting or monitoring lapses, not a contaminant or treatment-technique failure EPA classifies as health-based. 3,300 people get their water from it, across 1,360 connections.
How this compares nationally
Shelby County Pwsd 1 has 2 violations on record in total, 0 of them health-based - ranking it 12,128th of 12,903 systems by violation count, the 6th percentile nationally.
Against the MO average
Among the 327 MO systems in this dataset, the average is 6.1 health-based violations - Shelby County Pwsd 1's 0 is at or below that. See the lead and copper guide for why lead counts differently.
Most recent violation on record
Shelby County Pwsd 1's most recent violation on record is dated 1992-01-12. Last reported to EPA: 06/16/2026.
What Shelby County Pwsd 1's record does not cover
Everything on this page is Shelby County Pwsd 1'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 Shelby County Pwsd 1's customers' taps is household plumbing, invisible to a system-level record ranked 12,128th of 12,903 by violation count. The guide to what this data misses covers that gap.