MARSHALLTOWN WATER WORKS

MARSHALLTOWN, IA · ~27,591 people served

Check your exact address → MARSHALLTOWN overview

100

Excellent

PurityRadar safety score

PWSID

IA6469042

State

Iowa

City

MARSHALLTOWN

Population served

27,591

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 May 2025). Levels in parts per trillion (ppt).

Lithium

20,000 ppt

limit —

No federal limit

Violations & enforcement

Violations on record

Unaddressed

Health-based

Enforcement actions

From EPA ECHO (SDWIS), most recent enforcement Aug 2000. Official EPA record →

Monitoring & reporting · Total coliform began Apr 1994 Resolved

Monitoring & reporting · Total coliform began Jun 1992 Resolved

Monitoring & reporting · Nitrate began Oct 1986 Resolved

Recent enforcement actions

State action · SIF Aug 2000
State action · SIE Jul 2000
State action · SFJ Jul 2000
State action · SOX Jul 2000
State action · SOX Jun 1996
State action · SOX Jun 1996
State action · SOX Oct 1995
State action · SIE Jun 1994

This profile is built from EPA public records for system IA6469042 — 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.