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Water system · PWSID IL1815150

ALTO PASS WATER DISTRICT

ALTO PASS, IL · ~1,015 people served

Check your exact address → ALTO PASS overview
100
Excellent
PurityRadar safety score

PWSID

IL1815150

State

Illinois

City

ALTO PASS

Population served

1,015

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

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

40

Violations on record

0

Unaddressed

33

Health-based

128

Enforcement actions

From EPA ECHO (SDWIS), most recent enforcement Sep 2018. Official EPA record →

Monitoring & reporting · Total trihalomethanes (TTHM) began Sep 2016 Resolved
Monitoring & reporting · Haloacetic acids (HAA5) began Sep 2016 Resolved
Monitoring & reporting · Lead & Copper Rule began Jan 2014 Resolved
Max contaminant level (MCL) · Haloacetic acids (HAA5) health-based began Apr 2012 Resolved
Max contaminant level (MCL) · Haloacetic acids (HAA5) health-based began Jan 2012 Resolved
Max contaminant level (MCL) · Haloacetic acids (HAA5) health-based began Oct 2011 Resolved
Max contaminant level (MCL) · Total trihalomethanes (TTHM) health-based began Jul 2011 Resolved
Max contaminant level (MCL) · Haloacetic acids (HAA5) health-based began Jul 2011 Resolved
Max contaminant level (MCL) · Haloacetic acids (HAA5) health-based began Apr 2011 Resolved
Max contaminant level (MCL) · Total trihalomethanes (TTHM) health-based began Apr 2011 Resolved
Max contaminant level (MCL) · Haloacetic acids (HAA5) health-based began Jan 2011 Resolved
Max contaminant level (MCL) · Total trihalomethanes (TTHM) health-based began Jan 2011 Resolved

Recent enforcement actions

  • State action · SOX Sep 2018
  • State action · SIF Jun 2018
  • State action · SIE Oct 2017
  • State action · SIA Oct 2017
  • State action · SOX Apr 2014
  • State action · SIF Feb 2014
  • State action · SIE Jan 2014
  • State action · SIA Jan 2014

This profile is built from EPA public records for system IL1815150 — 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.