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Water system · PWSID MO5031380

CENTRAL CROSSING ACRES II

SHELL KNOB, MO · ~25 people served

Check your exact address → SHELL KNOB overview
100
Excellent
PurityRadar safety score

PWSID

MO5031380

State

Missouri

City

SHELL KNOB

Population served

25

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

No PFAS detections are on record for this system from EPA’s UCMR5 monitoring (2023–25). Absence of a detection isn’t a guarantee — not every system was sampled, and this dataset doesn’t cover other contaminants.

Violations & enforcement

14

Violations on record

2

Unaddressed

5

Health-based

45

Enforcement actions

From EPA ECHO (SDWIS), most recent enforcement Jun 2019. Official EPA record →

Monitoring & reporting · Lead & Copper Rule began Dec 2025 Unaddressed
Other · EPA contaminant 7000 began Jul 2025 Unaddressed
Monitoring · Lead & Copper Rule began Mar 2019 Resolved
Monitoring & reporting · Lead & Copper Rule began Apr 2011 Resolved
Monitoring & reporting · Total coliform began Aug 2005 Resolved
Monitoring & reporting · Total coliform began Jul 2005 Resolved
Max contaminant level (MCL) · Total coliform health-based began Mar 2004 Resolved
Max contaminant level (MCL) · Total coliform health-based began Mar 2004 Resolved
Monitoring & reporting · Total coliform began Feb 2004 Resolved
Max contaminant level (MCL) · Total coliform health-based began Jan 2004 Resolved
Monitoring & reporting · Total coliform began Nov 2003 Resolved
Max contaminant level (MCL) · Total coliform health-based began Oct 2003 Resolved

Recent enforcement actions

  • State action · SOX Jun 2019
  • State action · SIF May 2019
  • State action · SIE Apr 2019
  • State action · SIA Apr 2019
  • State action · SIA Dec 2018
  • State action · SIA Jan 2016
  • State action · SOX Jan 2014
  • State action · SOX Jan 2014

This profile is built from EPA public records for system MO5031380 — 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.