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Water system · PWSID OK2005801

OTTAWA CO RWD # 4

100
Excellent
PurityRadar safety score

PWSID

OK2005801

State

Oklahoma

City

FAIRLAND

Population served

652

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

Latest detections from EPA’s UCMR5 monitoring (through Nov 2023). Levels in parts per trillion (ppt).

Lithium

32,000 ppt

limit —

No federal limit

Violations & enforcement

76

Violations on record

0

Unaddressed

2

Health-based

72

Enforcement actions

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

Monitoring & reporting · EPA contaminant 2034 began Jul 2024 Resolved
Monitoring & reporting · EPA contaminant 2034 began Jul 2024 Resolved
Monitoring & reporting · EPA contaminant 2034 began Jul 2024 Resolved
Monitoring & reporting · EPA contaminant 2034 began Jul 2024 Resolved
Monitoring & reporting · EPA contaminant 2034 began Jul 2024 Resolved
Monitoring & reporting · EPA contaminant 0999 began Oct 2020 Resolved
Monitoring & reporting · EPA contaminant 0999 began Oct 2020 Resolved
Monitoring & reporting · EPA contaminant 0999 began Oct 2020 Resolved
Monitoring & reporting · Beta/photon emitters began Jan 2018 Resolved
Monitoring & reporting · Uranium began Jan 2018 Resolved
Monitoring & reporting · Gross alpha began Jan 2018 Resolved
Monitoring & reporting · Arsenic began Jan 2018 Resolved

Recent enforcement actions

  • State action · SOX Jun 2025
  • State action · SOX Jun 2025
  • State action · SOX Jun 2025
  • State action · SOX Jun 2025
  • State action · SOX Jun 2025
  • State action · SIF May 2025
  • State action · SIA Nov 2024
  • State action · SIE Nov 2024

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 Sep 2025

1.77 · max 4.39 mg/L · 60

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 OK2005801 — 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.