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Water system · PWSID OK1010848

MARSHALL COUNTY RURAL WATER DISTRICT #2

MADILL, OK · ~17,587 people served

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

PWSID

OK1010848

State

Oklahoma

City

MADILL

Population served

17,587

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

27

Violations on record

0

Unaddressed

23

Health-based

73

Enforcement actions

From EPA ECHO (SDWIS), most recent enforcement May 2020. Official EPA record →

Max contaminant level (MCL) · Haloacetic acids (HAA5) health-based began Apr 2019 Resolved
Max contaminant level (MCL) · Haloacetic acids (HAA5) health-based began Jan 2019 Resolved
Max contaminant level (MCL) · Haloacetic acids (HAA5) health-based began Jan 2019 Resolved
Max contaminant level (MCL) · Haloacetic acids (HAA5) health-based began Jan 2019 Resolved
Max contaminant level (MCL) · Haloacetic acids (HAA5) health-based began Jan 2016 Resolved
Max contaminant level (MCL) · Haloacetic acids (HAA5) health-based began Oct 2015 Resolved
Max contaminant level (MCL) · Haloacetic acids (HAA5) health-based began Jul 2015 Resolved
Max contaminant level (MCL) · Total trihalomethanes (TTHM) health-based began Jul 2015 Resolved
Max contaminant level (MCL) · Haloacetic acids (HAA5) health-based began Apr 2015 Resolved
Max contaminant level (MCL) · Total trihalomethanes (TTHM) health-based began Apr 2015 Resolved
Max contaminant level (MCL) · Total trihalomethanes (TTHM) health-based began Jan 2015 Resolved
Max contaminant level (MCL) · Total coliform health-based began Aug 2011 Resolved

Recent enforcement actions

  • State action · SOX May 2020
  • State action · SIF Sep 2019
  • State action · SFL Aug 2019
  • State action · SIE Aug 2019
  • State action · SIF May 2019
  • State action · SIE May 2019
  • State action · SFL May 2019
  • State action · SOX Jan 2017

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

3 stations · latest Dec 2025

0.328 · max 4.43 mg/L · 46

Fluoride

2 stations · latest Aug 2023

0.255 · max 0.33 mg/l · 20

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 OK1010848 — 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.