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Water system · PWSID IA9758023

OTO WATER SUPPLY

OTO, IA · ~72 people served

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

PWSID

IA9758023

State

Iowa

City

OTO

Population served

72

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

13

Violations on record

0

Unaddressed

1

Health-based

79

Enforcement actions

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

Monitoring & reporting · Lead & Copper Rule began Oct 2024 Resolved
Other · EPA contaminant 7000 began Jul 2024 Resolved
Other · EPA contaminant 7000 began Jul 2021 Resolved
Monitoring & reporting · Total coliform began Apr 2008 Resolved
Monitoring & reporting · Nitrate began Jul 2002 Resolved
Max contaminant level (MCL) · Total coliform health-based began Oct 1999 Resolved
Monitoring & reporting · Total coliform began May 1996 Resolved
Monitoring & reporting · Total coliform began Sep 1993 Resolved
Monitoring & reporting · Total coliform began Sep 1993 Resolved
Monitoring & reporting · Total coliform began Jun 1993 Resolved
Monitoring & reporting · Nitrate began Jul 1986 Resolved
Monitoring & reporting · Fluoride began Jul 1986 Resolved

Recent enforcement actions

  • State action · SOX Jan 2025
  • State action · SFJ Jan 2025
  • State action · SOX Aug 2024
  • State action · SFJ Aug 2024
  • State action · SOX Sep 2021
  • State action · SFJ Aug 2021
  • State action · SIF Aug 2008
  • State action · SFJ May 2008

This profile is built from EPA public records for system IA9758023 — 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.