Home/ Directory/ OK/ CHEROKEE CO. RWD #13

Water system · PWSID OK1021721

CHEROKEE CO. RWD #13

COOKSON, OK · ~1,640 people served

Check your exact address → COOKSON overview
100
Excellent
PurityRadar safety score

PWSID

OK1021721

State

Oklahoma

City

COOKSON

Population served

1,640

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

50

Violations on record

0

Unaddressed

19

Health-based

76

Enforcement actions

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

Monitoring & reporting · EPA contaminant 0999 began Jan 2018 Resolved
Max contaminant level (MCL) · Total trihalomethanes (TTHM) health-based began Oct 2016 Resolved
Max contaminant level (MCL) · Total trihalomethanes (TTHM) health-based began Jul 2016 Resolved
Max contaminant level (MCL) · Total trihalomethanes (TTHM) health-based began Apr 2016 Resolved
Max contaminant level (MCL) · Total trihalomethanes (TTHM) health-based began Jan 2016 Resolved
Monitoring & reporting · Haloacetic acids (HAA5) began Jul 2009 Resolved
Monitoring & reporting · Total trihalomethanes (TTHM) began Jul 2009 Resolved
Max contaminant level (MCL) · Haloacetic acids (HAA5) health-based began Oct 2008 Resolved
Monitoring & reporting · Haloacetic acids (HAA5) began Oct 2008 Resolved
Max contaminant level (MCL) · Total trihalomethanes (TTHM) health-based began Oct 2008 Resolved
Monitoring & reporting · Total trihalomethanes (TTHM) began Oct 2008 Resolved
Max contaminant level (MCL) · Haloacetic acids (HAA5) health-based began Jul 2008 Resolved

Recent enforcement actions

  • State action · SOX Oct 2025
  • State action · SIE Mar 2025
  • State action · SIA Mar 2025
  • State action · SFO Jan 2021
  • State action · SIF Apr 2018
  • State action · SOX Mar 2018
  • State action · SIE Mar 2018
  • State action · SIA Mar 2018

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 Jun 2023

0.14 · max 0.16 mg/L · 3

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 OK1021721 — 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.