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Water system · PWSID IA4800634

IOWA VALLEY ESTATES

MARENGO, IA · ~46 people served

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

PWSID

IA4800634

State

Iowa

City

MARENGO

Population served

46

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

11

Violations on record

0

Unaddressed

10

Health-based

90

Enforcement actions

From EPA ECHO (SDWIS), most recent enforcement Mar 2024. Official EPA record →

Max contaminant level (MCL) · Nitrate health-based began Oct 2023 Resolved
Max contaminant level (MCL) · Nitrate health-based began Sep 2023 Resolved
Max contaminant level (MCL) · Nitrate health-based began Aug 2023 Resolved
Max contaminant level (MCL) · Nitrate health-based began Jul 2023 Resolved
Max contaminant level (MCL) · Nitrate health-based began Jun 2023 Resolved
Max contaminant level (MCL) · Nitrate health-based began May 2023 Resolved
Max contaminant level (MCL) · Nitrate health-based began Apr 2023 Resolved
Max contaminant level (MCL) · Nitrate health-based began Mar 2023 Resolved
Max contaminant level (MCL) · Nitrate health-based began Apr 2022 Resolved
Max contaminant level (MCL) · Total coliform health-based began Feb 2005 Resolved
Monitoring & reporting · Total coliform began Sep 2004 Resolved

Recent enforcement actions

  • State action · SOX Mar 2024
  • State action · SOX Mar 2024
  • State action · SOX Mar 2024
  • State action · SOX Mar 2024
  • State action · SOX Mar 2024
  • State action · SOX Mar 2024
  • State action · SOX Mar 2024
  • State action · SOX Mar 2024

This profile is built from EPA public records for system IA4800634 — 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.