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Public water system record

Zion

Serves Zion, Lake County, IL · 24,442 people served

Federal records show no health-based violations and 3 monitoring/reporting issues for Zion in the last ten years. At least one of these issues remains unresolved.

  • IL0972000
  • ZION
  • IL
  • 24,442 served

System profile

Source water Purchased surface water
ZIP 60099
EPA system ID IL0972000

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
3

Key facts

  • Zion buys its water from Lake County Public Water District.
  • Record on file since 1996, with 0 health-based violations before October 19, 2016.
  • Lead pipe inventory: 5 lead and 4,589 unknown out of 7,117 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
Public Notice
OTHER
 Oct 11, 2024 Resolved
Lead and Copper Rule
Monitoring and reporting
 Oct 1, 2023 Active

Full record since 1996

EPA's records for Zion go back to 1996. Before October 19, 2016 they list no health-based violations and 2 monitoring or reporting violations.

Violations that began in Health-based Monitoring and reporting
1990s 0 1
2010 to October 18, 2016 0 1
2020s 0 3

Where the water comes from

Zion buys its water from Lake County Public Water District. It lists no wells or intakes of its own. 2 other community water systems and 1 smaller public system such as schools, businesses or campgrounds buy water from Zion.

Buys water from

Community systems that buy water from it

Annual water quality report

Zion 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.

Systems serving 10,000 or more people must mail or deliver the report to every customer, and from 2027 they must send it twice a year.

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