ELK CITY

ELK CITY, OK · ~10,510 people served

Check your exact address → ELK CITY overview

100

Excellent

PurityRadar safety score

PWSID

OK2000501

State

Oklahoma

City

ELK CITY

Population served

10,510

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

Lithium

17,940 ppt

limit —

No federal limit

Violations & enforcement

Violations on record

Unaddressed

Health-based

Enforcement actions

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

Monitoring & reporting · EPA contaminant 0999 began Jan 2024 Resolved

Monitoring · Lead & Copper Rule began Jul 2023 Resolved

Monitoring & reporting · EPA contaminant 0999 began Jul 2023 Resolved

Monitoring & reporting · EPA contaminant 0999 began Apr 2018 Resolved

Other · EPA contaminant 7000 began Jul 2014 Resolved

Monitoring & reporting · Uranium began Jan 2014 Resolved

Monitoring & reporting · Combined radium-226/228 began Jan 2014 Resolved

Monitoring & reporting · Gross alpha began Jan 2014 Resolved

Monitoring & reporting · Beta/photon emitters began Jan 2014 Resolved

Other · EPA contaminant 7000 began Jul 2012 Resolved

Monitoring & reporting · Total coliform began May 1998 Resolved

Monitoring & reporting · Total coliform began Dec 1996 Resolved

Recent enforcement actions

State action · SIF Apr 2025
State action · SIF Apr 2025
State action · SIF Apr 2025
State action · SOX May 2024
State action · SIA Mar 2024
State action · SIE Mar 2024
State action · SOX Nov 2023
State action · SOX Nov 2023

This profile is built from EPA public records for system OK2000501 — 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.