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Water system · PWSID OK1010821

CHICKASHA MUNICIPAL AUTHORITY

CHICKASHA, OK · ~16,036 people served

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

PWSID

OK1010821

State

Oklahoma

City

CHICKASHA

Population served

16,036

Primary source

Surface water

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 Aug 2025). Levels in parts per trillion (ppt).

Lithium

11,600 ppt

limit —

No federal limit

Violations & enforcement

75

Violations on record

0

Unaddressed

54

Health-based

150

Enforcement actions

From EPA ECHO (SDWIS), most recent enforcement Mar 2026. Official EPA record →

Treatment technique · EPA contaminant 5200 health-based began Oct 2024 Addressed
Reporting · EPA contaminant 5200 began Oct 2024 Addressed
Monitoring · Lead & Copper Rule began Mar 2024 Resolved
Monitoring & reporting · EPA contaminant 0999 began Jan 2024 Resolved
Other · EPA contaminant 7000 began Oct 2023 Resolved
Treatment technique · EPA contaminant 0300 health-based began Aug 2022 Resolved
Treatment technique · EPA contaminant 0300 health-based began Sep 2021 Resolved
Treatment technique · EPA contaminant 0300 health-based began Sep 2021 Resolved
Treatment technique · EPA contaminant 0200 health-based began Sep 2021 Resolved
Treatment technique · EPA contaminant 0300 health-based began Aug 2021 Resolved
Treatment technique · EPA contaminant 0300 health-based began Aug 2021 Resolved
Treatment technique · EPA contaminant 0300 health-based began Jul 2021 Resolved

Recent enforcement actions

  • EPA/federal action · EFL Mar 2026
  • State action · SIA Jul 2025
  • State action · SIA Jul 2025
  • State action · SIF May 2025
  • State action · SIF May 2025
  • State action · SOX May 2024
  • State action · SOX May 2024
  • State action · SIA May 2024

This profile is built from EPA public records for system OK1010821 — 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.