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Water system · PWSID IA6663001

OSAGE MUNICIPAL WATER SUPPLY

OSAGE, IA · ~3,637 people served

Check your exact address → OSAGE overview
91
Excellent
PurityRadar safety score

PWSID

IA6663001

State

Iowa

City

OSAGE

Population served

3,637

Primary source

Groundwater

Score history

▼ 9 points — the score moved from 100 to 91 on Jun 18, 2026, as newly published EPA data was incorporated.

Jun 18, 2026 · score 100 Jun 18, 2026 · score 91

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 Oct 2024). Levels in parts per trillion (ppt).

PFOS

Perfluorooctanesulfonic acid

4.2 ppt

limit 4 ppt

Above EPA limit · 1.0×

PFHxS

Perfluorohexanesulfonic acid

3.8 ppt

limit 10 ppt

Below EPA limit

Violations & enforcement

12

Violations on record

0

Unaddressed

9

Health-based

72

Enforcement actions

From EPA ECHO (SDWIS), most recent enforcement Jun 2017. Official EPA record →

Other · EPA contaminant 0700 began Jun 2016 Resolved
Max contaminant level (MCL) · Nitrate health-based began Aug 2009 Resolved
Monitoring & reporting · EPA contaminant 0999 began Jan 2004 Resolved
Max contaminant level (MCL) · Total coliform health-based began Sep 2002 Resolved
Max contaminant level (MCL) · Total coliform health-based began Aug 2002 Resolved
Max contaminant level (MCL) · Total coliform health-based began Jun 2002 Resolved
Max contaminant level (MCL) · Total coliform health-based began Nov 2001 Resolved
Max contaminant level (MCL) · Total coliform health-based began Aug 1999 Resolved
Max contaminant level (MCL) · Total coliform health-based began Jul 1997 Resolved
Max contaminant level (MCL) · Total coliform health-based began Oct 1996 Resolved
Monitoring & reporting · Lead & Copper Rule began Jul 1992 Resolved
Max contaminant level (MCL) · Total coliform health-based began Oct 1991 Resolved

Recent enforcement actions

  • State action · SIF Jun 2017
  • State action · SFJ Jul 2016
  • State action · SIE Jul 2016
  • State action · SOX Jun 2016
  • State action · SOX Feb 2010
  • State action · SIF Aug 2009
  • State action · SFJ Aug 2009
  • State action · SIE Aug 2009

This profile is built from EPA public records for system IA6663001 — 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.