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Water system · PWSID OK1010830

SOUTHERN OKLA WATER CORP

ARDMORE, OK · ~11,250 people served

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

PWSID

OK1010830

State

Oklahoma

City

ARDMORE

Population served

11,250

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

Latest detections from EPA’s UCMR5 monitoring (through Sep 2025). Levels in parts per trillion (ppt).

Lithium

10,800 ppt

limit —

No federal limit

6:2 FTS

11 ppt

limit —

No federal limit

PFBA

6.4 ppt

limit —

No federal limit

PFPeA

5.2 ppt

limit —

No federal limit

PFHxA

3.4 ppt

limit —

No federal limit

Violations & enforcement

335

Violations on record

0

Unaddressed

76

Health-based

233

Enforcement actions

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

Treatment technique · EPA contaminant 0300 health-based began May 2025 Resolved
Treatment technique · EPA contaminant 0300 health-based began Oct 2020 Resolved
Treatment technique · EPA contaminant 0300 health-based began Oct 2018 Resolved
Monitoring & reporting · EPA contaminant 2981 began Jul 2018 Resolved
Monitoring & reporting · EPA contaminant 2968 began Jul 2018 Resolved
Monitoring & reporting · EPA contaminant 2380 began Jul 2018 Resolved
Monitoring & reporting · EPA contaminant 2976 began Jul 2018 Resolved
Monitoring & reporting · EPA contaminant 2977 began Jul 2018 Resolved
Monitoring & reporting · EPA contaminant 2969 began Jul 2018 Resolved
Monitoring & reporting · EPA contaminant 2964 began Jul 2018 Resolved
Monitoring & reporting · EPA contaminant 2955 began Jul 2018 Resolved
Monitoring & reporting · EPA contaminant 2378 began Jul 2018 Resolved

Recent enforcement actions

  • State action · SOX Dec 2025
  • State action · SIF Aug 2025
  • State action · SFL Aug 2025
  • State action · SIE Aug 2025
  • State action · SOX Feb 2022
  • State action · SIF Jan 2021
  • State action · SIE Jan 2021
  • State action · SFL Jan 2021

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

2 stations · latest Dec 2025

0.111 · max 0.774 mg/L · 10

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 OK1010830 — 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.