JOHNSTON CO RWD #3

TISHOMINGO, OK · ~2,783 people served

Check your exact address → TISHOMINGO overview

100

Excellent

PurityRadar safety score

PWSID

OK2003511

State

Oklahoma

City

TISHOMINGO

Population served

2,783

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 Jul 2025. Official EPA record →

Reporting · EPA contaminant 5200 began Oct 2024 Resolved

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

Monitoring & reporting · EPA contaminant 0999 began Apr 2023 Resolved

Monitoring & reporting · EPA contaminant 3014 began Jan 2010 Resolved

Monitoring & reporting · EPA contaminant 2969 began Oct 2009 Resolved

Monitoring & reporting · EPA contaminant 2976 began Oct 2009 Resolved

Monitoring & reporting · EPA contaminant 2955 began Oct 2009 Resolved

Monitoring & reporting · EPA contaminant 2980 began Oct 2009 Resolved

Monitoring & reporting · EPA contaminant 2968 began Oct 2009 Resolved

Monitoring & reporting · EPA contaminant 2981 began Oct 2009 Resolved

Monitoring & reporting · EPA contaminant 2982 began Oct 2009 Resolved

Monitoring & reporting · EPA contaminant 2979 began Oct 2009 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 · SOX Sep 2023
State action · SIE Aug 2023
State action · SIA Aug 2023

Area water-quality monitoring

Environmental monitoring (rivers, wells, intakes) recorded in this system’s service area in the EPA/USGS Water Quality Portal since 2018 — source/ambient water, not finished tap water. Context for the watershed, not a reading from your tap.

ContaminantMedian · max · samples

Nitrate

1 station · latest Dec 2025

0.026 · max 0.044 mg/L · 5

Source: Water Quality Portal (EPA/USGS/state agencies). Values are as-reported and aren’t health thresholds.

This profile is built from EPA public records for system OK2003511 — 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.