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Water system · PWSID OK2001007

LONE GROVE

LONE GROVE, OK · ~4,863 people served

Check your exact address → LONE GROVE overview
100
Excellent
PurityRadar safety score

PWSID

OK2001007

State

Oklahoma

City

LONE GROVE

Population served

4,863

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

Lithium

13,900 ppt

limit —

No federal limit

Violations & enforcement

74

Violations on record

0

Unaddressed

4

Health-based

97

Enforcement actions

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

Treatment technique · EPA contaminant 5200 health-based began Oct 2024 Resolved
Reporting · EPA contaminant 5200 began Oct 2024 Resolved
Monitoring · Lead & Copper Rule began Sep 2023 Resolved
Monitoring & reporting · EPA contaminant 0999 began Jul 2023 Resolved
Monitoring & reporting · EPA contaminant 2034 began Jul 2023 Resolved
Monitoring & reporting · EPA contaminant 0999 began Jan 2019 Resolved
Monitoring & reporting · EPA contaminant 2033 began Jan 2019 Resolved
Monitoring & reporting · EPA contaminant 0999 began Jul 2018 Resolved
Other · EPA contaminant 7000 began Jul 2016 Resolved
Monitoring & reporting · EPA contaminant 2980 began Apr 2015 Resolved
Monitoring & reporting · EPA contaminant 2976 began Apr 2015 Resolved
Monitoring & reporting · EPA contaminant 2979 began Apr 2015 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 · SIF May 2024
  • State action · SIF May 2024
  • State action · SIF May 2024
  • State action · SOX Dec 2023

This profile is built from EPA public records for system OK2001007 — 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.