Home/ Directory/ IA/ PIERSON WATER SUPPLY

Water system · PWSID IA9766041

PIERSON WATER SUPPLY

PIERSON, IA · ~345 people served

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

PWSID

IA9766041

State

Iowa

City

PIERSON

Population served

345

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

8

Health-based

51

Enforcement actions

From EPA ECHO (SDWIS), most recent enforcement Jan 2021. Official EPA record →

Monitoring & reporting · Nitrate began Oct 2020 Resolved
Max contaminant level (MCL) · Total coliform health-based began Nov 2004 Resolved
Max contaminant level (MCL) · Nitrate health-based began Jan 1995 Resolved
Max contaminant level (MCL) · Nitrate health-based began Oct 1994 Resolved
Max contaminant level (MCL) · Nitrate health-based began Jul 1994 Resolved
Max contaminant level (MCL) · Nitrate health-based began May 1994 Resolved
Max contaminant level (MCL) · Nitrate health-based began Aug 1993 Resolved
Max contaminant level (MCL) · Nitrate health-based began Jan 1993 Resolved
Monitoring & reporting · Total coliform began Aug 1992 Resolved
Other · Nitrate began Jan 1987 Resolved
Max contaminant level (MCL) · Nitrate health-based began Oct 1986 Resolved

Recent enforcement actions

  • State action · SIF Jan 2021
  • State action · SFJ Dec 2020
  • State action · SIE Dec 2020
  • State action · SOX Nov 2020
  • State action · SIF Oct 2017
  • State action · SOX Sep 2017
  • State action · SFJ Sep 2017
  • State action · SOX May 2005

This profile is built from EPA public records for system IA9766041 — 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.