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Water system · PWSID MS0360069

TWELVE OAKS WATER SYSTEM

DES PERES, MO · ~314 people served

Check your exact address → DES PERES overview
100
Excellent
PurityRadar safety score

PWSID

MS0360069

State

Missouri

City

DES PERES

Population served

314

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

9

Violations on record

0

Unaddressed

1

Health-based

30

Enforcement actions

From EPA ECHO (SDWIS), most recent enforcement Sep 2024. Official EPA record →

Monitoring · Lead & Copper Rule began Dec 2023 Resolved
Monitoring & reporting · EPA contaminant 0999 began Oct 2023 Resolved
Monitoring · Lead & Copper Rule began Jun 2023 Resolved
Monitoring & reporting · EPA contaminant 0999 began Apr 2023 Resolved
Monitoring · Lead & Copper Rule began Mar 2022 Resolved
Monitoring & reporting · EPA contaminant 0999 began Jan 2022 Resolved
Other · EPA contaminant 7000 began Jul 2019 Resolved
Treatment technique · EPA contaminant 0700 health-based began Sep 2016 Resolved
Other · EPA contaminant 7000 began Jul 2015 Resolved

Recent enforcement actions

  • State action · SIF Sep 2024
  • State action · SOX Mar 2024
  • State action · SOX Jan 2024
  • State action · SFJ Jan 2024
  • State action · SIE Jan 2024
  • State action · SFJ Jan 2024
  • State action · SIE Jan 2024
  • State action · SOX Sep 2023

This profile is built from EPA public records for system MS0360069 — 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.