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Water system · PWSID IA8503528

ISU

AMES, IA · ~42,000 people served

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

PWSID

IA8503528

State

Iowa

City

AMES

Population served

42,000

Primary source

GWP

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

Lithium

23,000 ppt

limit —

No federal limit

Violations & enforcement

11

Violations on record

0

Unaddressed

4

Health-based

49

Enforcement actions

From EPA ECHO (SDWIS), most recent enforcement Dec 2023. Official EPA record →

Monitoring & reporting · Nitrite began Oct 2022 Resolved
Monitoring & reporting · Nitrite began Oct 2018 Resolved
Monitoring & reporting · Total trihalomethanes (TTHM) began Apr 2013 Resolved
Monitoring & reporting · Haloacetic acids (HAA5) began Apr 2013 Resolved
Monitoring & reporting · Total trihalomethanes (TTHM) began Oct 2012 Resolved
Monitoring & reporting · Haloacetic acids (HAA5) began Oct 2012 Resolved
Max contaminant level (MCL) · Total coliform health-based began Jul 2005 Resolved
Max contaminant level (MCL) · Total coliform health-based began Jun 2005 Resolved
Max contaminant level (MCL) · Total coliform health-based began Jul 2004 Resolved
Max contaminant level (MCL) · Total coliform health-based began Jul 1999 Resolved
Monitoring & reporting · Total coliform began Dec 1997 Resolved

Recent enforcement actions

  • State action · SIF Dec 2023
  • State action · SOX Nov 2023
  • State action · SFJ Oct 2023
  • State action · SIE Oct 2023
  • State action · SIF Feb 2020
  • State action · SOX Dec 2019
  • State action · SIE Nov 2019
  • State action · SFJ Nov 2019

This profile is built from EPA public records for system IA8503528 — 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.