MAHASKA RURAL WATER SYSTEM, INC.

OSKALOOSA, IA · ~9,818 people served

Check your exact address → OSKALOOSA overview

100

Excellent

PurityRadar safety score

PWSID

IA6273901

State

Iowa

City

OSKALOOSA

Population served

9,818

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 2018. Official EPA record →

Treatment technique · Lead & Copper Rule health-based began Apr 2016 Resolved

Max contaminant level (MCL) · Total coliform health-based began Aug 2015 Resolved

Monitoring & reporting · EPA contaminant 1094 began Jan 2009 Resolved

Max contaminant level (MCL) · Total coliform health-based began Dec 2002 Resolved

Monitoring & reporting · Total coliform began Nov 1995 Resolved

Recent enforcement actions

State action · SOX Mar 2018
State action · SIE Feb 2018
State action · SFJ Feb 2018
State action · SIF Jun 2017
State action · SOX May 2017
State action · SIF Apr 2017
State action · SFJ Jul 2016
State action · SIA Apr 2016

This profile is built from EPA public records for system IA6273901 — 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.