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Water system · PWSID MO6010834

WARRENTON PWS

WARRENTON, MO · ~8,208 people served

Check your exact address → WARRENTON overview
100
Excellent
PurityRadar safety score

PWSID

MO6010834

State

Missouri

City

WARRENTON

Population served

8,208

Primary source

Groundwater

Score history

No change since tracking began Jun 18, 2026.

Jun 18, 2026 · score 100 Jun 18, 2026 · score 100

2 score updates logged since tracking began Jun 18, 2026. Each future EPA re-score adds a point.

PFAS & contaminant readings

Latest detections from EPA’s UCMR5 monitoring (through Sep 2023). Levels in parts per trillion (ppt).

Lithium

62,800 ppt

limit —

No federal limit

Violations & enforcement

18

Violations on record

0

Unaddressed

14

Health-based

74

Enforcement actions

From EPA ECHO (SDWIS), most recent enforcement Jul 2015. Official EPA record →

Monitoring & reporting · Total coliform began Nov 2014 Resolved
Max contaminant level (MCL) · Total coliform health-based began Feb 2009 Resolved
Max contaminant level (MCL) · Total coliform health-based began Dec 2008 Resolved
Max contaminant level (MCL) · Total coliform health-based began Oct 2008 Resolved
Monitoring & reporting · Total coliform began Jun 2007 Resolved
Other · EPA contaminant 7000 began Jul 2005 Resolved
Max contaminant level (MCL) · Total coliform health-based began Apr 2005 Resolved
Max contaminant level (MCL) · Total coliform health-based began Apr 2003 Resolved
Max contaminant level (MCL) · Total coliform health-based began Mar 2001 Resolved
Max contaminant level (MCL) · Total coliform health-based began Jul 2000 Resolved
Max contaminant level (MCL) · Total coliform health-based began Nov 1999 Resolved
Max contaminant level (MCL) · Total coliform health-based began Aug 1999 Resolved

Recent enforcement actions

  • State action · SIF Jul 2015
  • State action · SOX Mar 2015
  • State action · SIE Dec 2014
  • State action · SIA Dec 2014
  • State action · SOX Jan 2014
  • State action · SOX Jan 2014
  • State action · SOX Jun 2011
  • State action · SIF Mar 2009

This profile is built from EPA public records for system MO6010834 — SDWIS violations and UCMR5 PFAS sampling. The score is system-level and can’t account for your home’s plumbing (older pipes can add lead at the tap). For health decisions, check your exact address, read the utility’s Consumer Confidence Report, and confirm with your provider.