WASHITA CO RWD #2

COLONY, OK · ~1,032 people served

Check your exact address → COLONY overview

100

Excellent

PurityRadar safety score

PWSID

OK2007511

State

Oklahoma

City

COLONY

Population served

1,032

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 Mar 2026. Official EPA record →

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

Reporting · EPA contaminant 5200 began Oct 2024 Addressed

Monitoring & reporting · Total coliform began Nov 2013 Resolved

Other · EPA contaminant 7000 began Jul 2013 Resolved

Monitoring & reporting · Total coliform began Feb 2010 Resolved

Monitoring & reporting · Total coliform began Dec 2003 Resolved

Max contaminant level (MCL) · Total coliform health-based began Dec 2003 Resolved

Recent enforcement actions

EPA/federal action · EFL Mar 2026
State action · SIA Jul 2025
State action · SIA Jul 2025
State action · SOX Sep 2022
State action · SOX Sep 2022
State action · SOX Feb 2015
State action · SOX Jul 2014
State action · SIA Jan 2014

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

1.26 · max 2.31 mg/L · 19

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 OK2007511 — 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.