Public Water Partners

WEST CHICAGO, IL · Cook County

STONE PARK Water System

Consumer Confidence Report status

STONE PARK must publish a Consumer Confidence Report — the annual drinking water quality report covering calendar year 2026 — by July 1, 2027.

As of August 1, 2026, EPA's federal records show 1 item for STONE PARK that is open and awaiting resolution. None are health-based violations — open items of this kind are most often monitoring or reporting requirements, not water-safety findings.

Data sourced from the EPA ECHO database (SDWA bulk download), last refreshed August 1, 2026. This is a record-keeping and public-information tool — it does not replace Illinois’s official records. Always confirm current status with Illinois before making decisions based on this information.

System facts

System ID (PWSID)
IL0313030
System type
Community Water System
Population served
4,576
Service connections
848
Ownership
local government
Water source
surface water (rivers, lakes, or reservoirs)

STONE PARK is one of 248 community water systems in Illinois in the 3,301 to 10,000 people size category, serving 4,576 people from surface water.

As of August 1, 2026, its federal record holds 7 entries between 1991 and 2025, of which 1 remains open; none are health-based.

Of the 7, 3 are monitoring and reporting requirements — the category that accounts for about four in five of all violations in EPA's national dataset — rather than findings about the water itself. The record involves the Lead and Copper Rule, the Consumer Confidence Rule, and the Total Coliform Rules.

Violation history

  • Notification, Known or Potential LSL

    —

    LEAD AND COPPER RULE REVISIONS

    July 2, 2025

    Unaddressed

  • Consumer Confidence Report Complete Failure to Report

    —

    Consumer Confidence Rule

    July 1, 2021 – July 19, 2021

    Resolved

  • Lead Consumer Notice

    —

    Lead and Copper Rule

    December 30, 2020 – January 20, 2021

    Resolved

  • Consumer Confidence Report Complete Failure to Report

    —

    Consumer Confidence Rule

    July 1, 2020 – July 8, 2020

    Resolved

  • Lead Consumer Notice

    —

    Lead and Copper Rule

    January 2, 2012 – June 4, 2012

    Resolved

  • Consumer Confidence Report Inadequate Reporting

    —

    Consumer Confidence Rule

    July 1, 2004 – December 8, 2004

    Resolved

  • Maximum Contaminant Level Violation, Monthly (TCR)

    Health-based

    Coliform (TCR)

    September 1, 1991 – September 30, 1991

    Archived

Unaddressed no corrective action on record yetResolved addressed and confirmed by the stateArchived closed in EPA's records (typically due to age or a data correction)

Enforcement actions

Common questions

Is STONE PARK required to publish a Consumer Confidence Report?

Yes. STONE PARK is a community water system, and federal rules (40 CFR 141 Subpart O) require every community water system to publish a Consumer Confidence Report each year.

When is STONE PARK’s next Consumer Confidence Report due?

STONE PARK’s next Consumer Confidence Report is due by July 1, 2027. The report covers calendar year 2026.

Does STONE PARK have any open drinking water violations on record?

As of August 1, 2026, EPA's federal records show 1 item for STONE PARK that is open and awaiting resolution. None are health-based violations — open items of this kind are most often monitoring or reporting requirements, not water-safety findings.

What is a Consumer Confidence Report?

A Consumer Confidence Report (CCR) is the annual drinking water quality report that community water systems must provide to the people they serve. It lists the contaminants detected in the system’s water during the year, where the water comes from, and how the results compare with federal limits. EPA’s revised CCR rule takes effect January 1, 2027, and the first reports in the new format are due July 1, 2027.

Contact

FACIANO, ANTHONY A.

630-973-3533

WEST CHICAGO, IL 60185