POTTAWATOMIE COUNTY RWD #3

SHAWNEE, OK · ~560 people served

Check your exact address → SHAWNEE overview

100

Excellent

PurityRadar safety score

PWSID

OK1020807

State

Oklahoma

City

SHAWNEE

Population served

560

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

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

116

Enforcement actions

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

Monitoring & reporting · Total trihalomethanes (TTHM) began Apr 2025 Resolved

Monitoring & reporting · EPA contaminant 2010 began Oct 2024 Resolved

Monitoring & reporting · EPA contaminant 2067 began Jul 2024 Resolved

Monitoring & reporting · EPA contaminant 2015 began Jul 2024 Resolved

Monitoring & reporting · EPA contaminant 2005 began Jul 2024 Resolved

Monitoring & reporting · EPA contaminant 2065 began Jul 2024 Resolved

Monitoring & reporting · EPA contaminant 2010 began Jul 2024 Resolved

Monitoring & reporting · EPA contaminant 2274 began Jul 2024 Resolved

Max contaminant level (MCL) · Total trihalomethanes (TTHM) health-based began Apr 2022 Resolved

Max contaminant level (MCL) · Total trihalomethanes (TTHM) health-based began Jan 2022 Resolved

Max contaminant level (MCL) · Haloacetic acids (HAA5) health-based began Apr 2019 Resolved

Monitoring & reporting · Haloacetic acids (HAA5) began Oct 2013 Resolved

Recent enforcement actions

State action · SOX Oct 2025
State action · SOX Oct 2025
State action · SIA Jun 2025
State action · SIA Jun 2025
State action · SOX Apr 2025
State action · SOX Mar 2025
State action · SOX Mar 2025
State action · SOX Mar 2025

This profile is built from EPA public records for system OK1020807 — 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.