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Water system · PWSID MS0300044

GULF PARK

DES PERES, MO · ~4,813 people served

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

PWSID

MS0300044

State

Missouri

City

DES PERES

Population served

4,813

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 2024). Levels in parts per trillion (ppt).

Lithium

10,000 ppt

limit —

No federal limit

Violations & enforcement

334

Violations on record

0

Unaddressed

4

Health-based

264

Enforcement actions

From EPA ECHO (SDWIS), most recent enforcement Jun 2025. Official EPA record →

Monitoring · Lead & Copper Rule began Sep 2024 Resolved
Monitoring & reporting · EPA contaminant 0999 began Jul 2024 Resolved
Monitoring · Lead & Copper Rule began Jun 2024 Resolved
Monitoring & reporting · EPA contaminant 0999 began Apr 2024 Resolved
Monitoring & reporting · EPA contaminant 4020 began Oct 2012 Resolved
Monitoring & reporting · EPA contaminant 4020 began Oct 2012 Resolved
Monitoring & reporting · EPA contaminant 4030 began Oct 2012 Resolved
Monitoring & reporting · Combined radium-226/228 began Oct 2012 Resolved
Monitoring & reporting · EPA contaminant 4020 began Oct 2012 Resolved
Monitoring & reporting · EPA contaminant 4020 began Oct 2012 Resolved
Monitoring & reporting · Combined radium-226/228 began Oct 2012 Resolved
Monitoring & reporting · Combined radium-226/228 began Oct 2012 Resolved

Recent enforcement actions

  • State action · SIF Jun 2025
  • State action · SOX Jun 2025
  • State action · SIF Oct 2024
  • State action · SIE Oct 2024
  • State action · SFJ Oct 2024
  • State action · SIE Oct 2024
  • State action · SFJ Oct 2024
  • State action · SOX Oct 2024

This profile is built from EPA public records for system MS0300044 — 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.