MCALESTER PWA

MCALESTER, OK · ~18,206 people served

Check your exact address → MCALESTER overview

100

Excellent

PurityRadar safety score

PWSID

OK1020609

State

Oklahoma

City

MCALESTER

Population served

18,206

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

192

Violations on record

Unaddressed

174

Health-based

387

Enforcement actions

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

Monitoring & reporting · EPA contaminant 0300 began Mar 2025 Resolved

Monitoring & reporting · EPA contaminant 0300 began Feb 2025 Resolved

Monitoring & reporting · EPA contaminant 0300 began Jan 2025 Resolved

Reporting · EPA contaminant 5200 began Oct 2024 Resolved

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

Treatment technique · EPA contaminant 0300 health-based began Jul 2024 Resolved

Treatment technique · EPA contaminant 0200 health-based began Jul 2024 Resolved

Treatment technique · Bromate health-based began Jul 2023 Resolved

Treatment technique · EPA contaminant 0300 health-based began Jun 2023 Resolved

Treatment technique · Bromate health-based began Apr 2023 Resolved

Max contaminant level (MCL) · Total trihalomethanes (TTHM) health-based began Apr 2023 Resolved

Max contaminant level (MCL) · Total trihalomethanes (TTHM) health-based began Jan 2023 Resolved

Recent enforcement actions

State action · SOX Oct 2025
State action · SOX Oct 2025
State action · SOX Oct 2025
State action · SOX Jul 2025
State action · SOX Jul 2025
State action · SIA Jul 2025
State action · SIA Jul 2025
State action · SIA Jun 2025

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

6 stations · latest Jun 2024

0.157 · max 0.401 mg/L · 75

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 OK1020609 — 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.