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Public water system record

Antioch

Serves Antioch and Lake Catherine, Lake County, IL · 14,175 people served

Federal records show no health-based violations and 2 monitoring/reporting issues for Antioch in the last ten years. At least one of these issues remains unresolved.

  • IL0970050
  • ANTIOCH
  • IL
  • 14,175 served

System profile

Source water Groundwater
ZIP 60002
EPA system ID IL0970050

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
2

Key facts

  • Antioch draws water from 9 wells (1 of them for emergency, seasonal or other part-time use).
  • Record on file since 1977, with 5 health-based violations before October 19, 2016.
  • Lead pipe inventory: 207 lead and 2 unknown out of 4,939 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
Lead and Copper Rule
Monitoring and reporting
 Oct 1, 2023 Resolved

Full record since 1977

EPA's records for Antioch go back to 1977. Before October 19, 2016 they list 5 health-based violations (4 resolved, 1 archived by EPA without a recorded fix) and 36 monitoring or reporting violations.

Violations that began in Health-based Monitoring and reporting
1970s 0 1
1990s 4 26
2000s 1 9
2020s 0 2

Most recent health-based violation before October 19, 2016: Lead and Copper Rule, began October 2000, Resolved.

Show all 5 health-based violations before October 19, 2016
Contaminant Start date Status
Lead and Copper Rule
Treatment technique failure
 Oct 1, 2000 Resolved
Total Coliform
Contaminant limit exceeded
 May 1, 1995 Archived
Lead and Copper Rule
Treatment technique failure
 Jan 1, 1994 Resolved
Lead and Copper Rule
Treatment technique failure
 Apr 27, 1993 Resolved
Lead and Copper Rule
Treatment technique failure
 Jan 1, 1993 Resolved

Where the water comes from

Antioch draws water from 9 wells (1 of them for emergency, seasonal or other part-time use). 3 smaller public systems such as schools, businesses or campgrounds buy water from Antioch.

Annual water quality report

Antioch 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