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Public water system record

Merrionette Park

Serves Merrionette Park, Cook County, IL · 1,969 people served

Federal records show no health-based violations and 5 monitoring/reporting issues for Merrionette Park in the last ten years. At least one of these issues remains unresolved.

  • IL0311890
  • MERRIONETTE PARK
  • IL
  • 1,969 served

System profile

Source water Purchased surface water
ZIP 60803
EPA system ID IL0311890

Verify this system on EPA ECHO →

Health-based violations, last 10 years
0
Resolved
0
Unresolved
0
Any acute record
No
Monitoring issues, last 10 years
5

Key facts

  • Merrionette Park buys its water from Chicago.
  • Most recent formal enforcement: signed compliance agreement by Illinois, June 2006.
  • Record on file since 1993, with 0 health-based violations before October 19, 2016.
  • Lead pipe inventory: 0 lead and 10 unknown out of 542 service lines.

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Health-based violations

Since October 2016

Violation data reflects EPA records through March 2026. For the most current status, visit the EPA ECHO database.

None since October 2016.

Monitoring and reporting issues

Since October 2016

Missed tests or reports, not contaminants found above a limit.

Issue Start date Status
Consumer Confidence Rule
OTHER
 Jul 1, 2025 Active
Total Trihalomethanes (TTHMs)
Monitoring and reporting
 Jan 1, 2025 Archived
Violation period ended. EPA no longer counts it toward current compliance, but no fix was formally recorded.
Haloacetic Acids (HAA5)
Monitoring and reporting
 Jan 1, 2025 Archived
Violation period ended. EPA no longer counts it toward current compliance, but no fix was formally recorded.
Consumer Confidence Rule
OTHER
 Jul 1, 2024 Active
Consumer Confidence Rule
OTHER
 Jul 1, 2023 Resolved

Full record since 1993

EPA's records for Merrionette Park go back to 1993. Before October 19, 2016 they list no health-based violations and 14 monitoring or reporting violations.

Violations that began in Health-based Monitoring and reporting
1990s 0 1
2000s 0 13
2020s 0 5

Enforcement actions

Illinois regulators took 2 formal enforcement actions against Merrionette Park in 2006. The most recent was a signed compliance agreement in June 2006.

Date By Action Violations covered
Jun 27, 2006 Illinois Signed compliance agreement 2 violations: Public Notice
Apr 11, 2006 Illinois Signed compliance agreement 2 violations: Lead and Copper Rule

Where the water comes from

Merrionette Park buys its water from Chicago. It lists no wells or intakes of its own. 1 other community water system and 1 smaller public system such as schools, businesses or campgrounds buy water from Merrionette Park.

Buys water from

Community systems that buy water from it

Annual water quality report

Merrionette Park must give its customers an annual water quality report (Consumer Confidence Report) by July 1, with the levels its tests found in the previous year.

Where the state allows it, systems serving fewer than 10,000 people may publish the report in a local newspaper or news site instead of mailing it, and must provide a copy on request.

Find a posted report with EPA's Consumer Confidence Report search

Testing your own water

To test the water at your tap, or a private well this record does not cover, use a laboratory certified for drinking water by Illinois.

Certified drinking water labs by state EPA guidance for private wells