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Water system · PWSID OK2006907

MARLOW MUNICIPAL AUTHORITY

MARLOW, OK · ~4,600 people served

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

PWSID

OK2006907

State

Oklahoma

City

MARLOW

Population served

4,600

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 Jul 2023). Levels in parts per trillion (ppt).

Lithium

37,400 ppt

limit —

No federal limit

Violations & enforcement

11

Violations on record

0

Unaddressed

3

Health-based

30

Enforcement actions

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

Reporting · EPA contaminant 5200 began Oct 2024 Resolved
Treatment technique · EPA contaminant 5200 health-based began Oct 2024 Resolved
Monitoring & reporting · EPA contaminant 2034 began Jan 2005 Resolved
Monitoring & reporting · Total coliform began Mar 2004 Resolved
Max contaminant level (MCL) · Total coliform health-based began Nov 1998 Resolved
Monitoring & reporting · Total coliform began Jan 1998 Resolved
Monitoring & reporting · Total coliform began Dec 1996 Resolved
Max contaminant level (MCL) · Total coliform health-based began Jul 1993 Resolved
Monitoring & reporting · Lead & Copper Rule began Jul 1992 Resolved
Monitoring & reporting · Total coliform began Apr 1992 Resolved
Monitoring & reporting · Total coliform began Oct 1991 Resolved

Recent enforcement actions

  • State action · SOX Jul 2025
  • State action · SOX Jul 2025
  • State action · SIA Jul 2025
  • State action · SIA Jul 2025
  • State action · SOX Aug 2016
  • State action · SOX Aug 2016
  • State action · SOX Aug 2016
  • State action · SOX Aug 2016

This profile is built from EPA public records for system OK2006907 — 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.