TONKAWA

TONKAWA, OK · ~3,299 people served

Check your exact address → TONKAWA overview

100

Excellent

PurityRadar safety score

PWSID

OK2003603

State

Oklahoma

City

TONKAWA

Population served

3,299

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

Enforcement actions

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

Monitoring & reporting · EPA contaminant 3014 began Aug 2025 Unaddressed

Monitoring & reporting · EPA contaminant 3014 began Jan 2017 Unaddressed

Monitoring & reporting · EPA contaminant 3014 began Sep 2015 Unaddressed

Monitoring & reporting · EPA contaminant 3014 began Sep 2014 Unaddressed

Monitoring & reporting · EPA contaminant 3014 began Aug 2014 Unaddressed

Treatment technique · EPA contaminant 5200 health-based began Oct 2024 Resolved

Reporting · EPA contaminant 5200 began Oct 2024 Resolved

Monitoring & reporting · Haloacetic acids (HAA5) began Oct 2022 Resolved

Monitoring & reporting · Total trihalomethanes (TTHM) began Oct 2022 Resolved

Other · EPA contaminant 7000 began Jul 2014 Resolved

Monitoring & reporting · Total coliform began Sep 2013 Resolved

Other · EPA contaminant 7000 began Jul 2013 Resolved

Recent enforcement actions

State action · SIA Sep 2025
State action · SIE Sep 2025
State action · SOX Jul 2025
State action · SOX Jul 2025
State action · SIA Jul 2025
State action · SIA Jul 2025
State action · SIF Aug 2024
State action · SOX Mar 2024

This profile is built from EPA public records for system OK2003603 — 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.