BOONE COUNTY PWSD 9: EPA violation history, explained
BOONE COUNTY PWSD 9 has a health-based violation on record, but none in the last five years - an older issue, not necessarily a current one. 15,035 people get their water from it, across 6,412 connections.
BOONE COUNTY PWSD 9's record against the rest of the country
BOONE COUNTY PWSD 9 has 35 violations on record in total, 30 of thems health-based - ranking it 577th of 12,903 systems by violation count, the 96th percentile nationally.
Against the MO average
MO's 327 covered systems average 6.1 health-based violations each; BOONE COUNTY PWSD 9 carries 30, more than typical for the state. See the lead and copper guide for why lead counts differently.
Most recent violation on record
BOONE COUNTY PWSD 9's most recent violation on record is dated 2025-01-08, with the most recent health-based one dated 2005-01-10. Last reported to EPA: 06/16/2026.
The concern categories on record
BOONE COUNTY PWSD 9'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:
- Radionuclides - flagged from: Combined Radium (-226 and -228); Gross Alpha, Excl. Radon and U
The most severe category on record is radionuclides, which points toward a reverse osmosis-class filter if you want to address it directly.
What BOONE COUNTY PWSD 9's record does not cover
This is what BOONE COUNTY PWSD 9 reported to its state primacy agency and EPA under the Safe Drinking Water Act - real regulatory record, not a lab test of your specific tap. Between the utility's meter and BOONE COUNTY PWSD 9's customers' taps is household plumbing, invisible to a system-level record ranked 577th of 12,903 by violation count. The guide to what this data misses covers that gap.