STOCKTON MUNI WATER SUPPLY

CALAMUS, IA · ~176 people served

Check your exact address → CALAMUS overview

100

Excellent

PurityRadar safety score

PWSID

IA7063096

State

Iowa

City

CALAMUS

Population served

176

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

Violations on record

Unaddressed

Health-based

Enforcement actions

From EPA ECHO (SDWIS), most recent enforcement Aug 2019. Official EPA record →

Other · EPA contaminant 7000 began Jul 2019 Resolved

Monitoring & reporting · Total coliform began Dec 2012 Resolved

Other · EPA contaminant 7000 began Jul 2006 Resolved

Other · EPA contaminant 7000 began Jul 2005 Resolved

Monitoring & reporting · Total coliform began Apr 1993 Resolved

Monitoring & reporting · Total coliform began Feb 1993 Resolved

Monitoring & reporting · Lead & Copper Rule began Apr 1988 Resolved

Monitoring & reporting · Nitrate began Jul 1985 Resolved

Monitoring & reporting · Antimony began Jul 1985 Resolved

Monitoring & reporting · Chromium (total) began Jul 1985 Resolved

Monitoring & reporting · Cadmium began Jul 1985 Resolved

Monitoring & reporting · Barium began Jul 1985 Resolved

Recent enforcement actions

State action · SOX Aug 2019
State action · SFJ Aug 2019
State action · SIF Apr 2013
State action · SIE Jan 2013
State action · SFJ Jan 2013
State action · SOX Jan 2013
State action · SOX Aug 2007
State action · SFJ Jan 2007

This profile is built from EPA public records for system IA7063096 — 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.