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Water system · PWSID IA6950075

RED OAK WATER SUPPLY

RED OAK, IA · ~5,596 people served

Check your exact address → RED OAK overview
100
Excellent
PurityRadar safety score

PWSID

IA6950075

State

Iowa

City

RED OAK

Population served

5,596

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

Latest detections from EPA’s UCMR5 monitoring (through Sep 2025). Levels in parts per trillion (ppt).

Lithium

16,000 ppt

limit —

No federal limit

Violations & enforcement

67

Violations on record

0

Unaddressed

2

Health-based

332

Enforcement actions

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

Monitoring & reporting · Nitrate began Jul 2024 Resolved
Monitoring & reporting · Nitrate began Jan 2024 Resolved
Monitoring & reporting · Nitrate began Oct 2018 Resolved
Monitoring & reporting · Gross alpha began Jul 2018 Resolved
Monitoring & reporting · Uranium began Jul 2018 Resolved
Monitoring & reporting · Haloacetic acids (HAA5) began Jul 2014 Resolved
Monitoring & reporting · Total trihalomethanes (TTHM) began Jul 2014 Resolved
Monitoring & reporting · Nitrate began Jan 2014 Resolved
Monitoring & reporting · EPA contaminant 2990 began Jan 2009 Resolved
Monitoring & reporting · EPA contaminant 2982 began Jan 2009 Resolved
Monitoring & reporting · EPA contaminant 2968 began Jan 2009 Resolved
Monitoring & reporting · EPA contaminant 2969 began Jan 2009 Resolved

Recent enforcement actions

  • State action · SIF Apr 2025
  • State action · SOX Mar 2025
  • State action · SIE Jan 2025
  • State action · SFJ Jan 2025
  • State action · SIF Dec 2024
  • State action · SIF Dec 2024
  • State action · SOX Oct 2024
  • State action · SOX Oct 2024

This profile is built from EPA public records for system IA6950075 — 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.