GRAND LAKE PWA

OCHELATA, OK · ~2,800 people served

Check your exact address → OCHELATA overview

100

Excellent

PurityRadar safety score

PWSID

OK1021691

State

Oklahoma

City

OCHELATA

Population served

2,800

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

No PFAS detections are on record for this system from EPA’s UCMR5 monitoring (2023–25). Absence of a detection isn’t a guarantee — not every system was sampled, and this dataset doesn’t cover other contaminants.

Violations & enforcement

Violations on record

Unaddressed

Health-based

175

Enforcement actions

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

Monitoring & reporting · Lead & Copper Rule began Oct 2024 Resolved

Max contaminant level (MCL) · Uranium health-based began Jan 2024 Resolved

Other · EPA contaminant 7000 began Oct 2023 Resolved

Monitoring & reporting · Beta/photon emitters began Apr 2022 Resolved

Monitoring & reporting · Uranium began Apr 2022 Resolved

Monitoring & reporting · Gross alpha began Apr 2022 Resolved

Monitoring & reporting · Combined radium-226/228 began Apr 2022 Resolved

Monitoring & reporting · Uranium began Jan 2022 Resolved

Monitoring & reporting · Combined radium-226/228 began Jan 2022 Resolved

Monitoring & reporting · Beta/photon emitters began Jan 2022 Resolved

Monitoring & reporting · Gross alpha began Jan 2022 Resolved

Monitoring & reporting · EPA contaminant 3014 began Oct 2020 Resolved

Recent enforcement actions

State action · SOX Jul 2025
State action · SOX Jul 2025
State action · SIF Jun 2025
State action · SIA Nov 2024
State action · SIE Nov 2024
State action · SIE Jun 2024
State action · SFL Jun 2024
State action · SIF Apr 2024

This profile is built from EPA public records for system OK1021691 — 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.