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Public water system record

Lake of Egypt PWD

Serves an area of Williamson County and Johnson County, IL that includes Marion · 11,368 people served

Federal records show 2 health-based violations and no monitoring/reporting issues for Lake of Egypt PWD in the last ten years. The most serious issue in this window was a resolved CARBON, TOTAL violation.

  • IL1995200
  • MARION
  • IL
  • 11,368 served

System profile

Source water Surface water
ZIP 62959
EPA system ID IL1995200

Verify this system on EPA ECHO →

Health-based violations, last 10 years
2
Resolved
2
Unresolved
0
Any acute record
No
Monitoring issues, last 10 years
0

Key facts

  • Lake of Egypt PWD draws water from 1 surface water intake.
  • Most recent formal enforcement: compliance order (no penalty) by Illinois, December 2024.
  • Record on file since 1977, with 16 health-based violations before October 19, 2016.
  • Lead pipe inventory: 0 lead and 0 unknown out of 4,723 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.

Contaminant Rule family Start date Status Acute
CARBON, TOTAL
Treatment technique failure
 210 Jul 1, 2024 Resolved No
CARBON, TOTAL
Treatment technique failure
 210 Apr 1, 2024 Resolved No

Full record since 1977

EPA's records for Lake of Egypt PWD go back to 1977. Before October 19, 2016 they list 16 health-based violations (6 resolved, 10 archived by EPA without a recorded fix) and 27 monitoring or reporting violations.

Violations that began in Health-based Monitoring and reporting
1970s 0 1
1990s 10 16
2000s 5 10
2010 to October 18, 2016 1 0
2020s 2 0

Most recent health-based violation before October 19, 2016: Total Trihalomethanes (TTHMs), began April 2011, Resolved.

Show all 16 health-based violations before October 19, 2016
Contaminant Start date Status
Total Trihalomethanes (TTHMs)
Contaminant limit exceeded
Measured 84 µg/L, federal limit 80 µg/L (1.1 times the limit)
 Apr 1, 2011 Resolved
Total Coliform
Contaminant limit exceeded
 Aug 1, 2006 Resolved
CARBON, TOTAL
Treatment technique failure
 Apr 1, 2003 Resolved
CARBON, TOTAL
Treatment technique failure
 Jan 1, 2003 Resolved
CARBON, TOTAL
Treatment technique failure
 Oct 1, 2002 Resolved
Interim Enhanced Surface Water Treatment Rule (acute)
Treatment technique failure
 Jun 1, 2002 Resolved
Total Coliform
Contaminant limit exceeded
 May 1, 1996 Archived
Surface Water Treatment Rule
Treatment technique failure
 Mar 1, 1994 Archived
Surface Water Treatment Rule
Treatment technique failure
 Jan 1, 1994 Archived
Surface Water Treatment Rule
Treatment technique failure
 Dec 1, 1993 Archived
Surface Water Treatment Rule
Treatment technique failure
 Nov 1, 1993 Archived
Surface Water Treatment Rule
Treatment technique failure
 Oct 1, 1993 Archived
Surface Water Treatment Rule
Treatment technique failure
 Sep 1, 1993 Archived
Surface Water Treatment Rule
Treatment technique failure
 Aug 1, 1993 Archived
Surface Water Treatment Rule
Treatment technique failure
 Jul 1, 1993 Archived
Total Coliform
Contaminant limit exceeded
 Jul 1, 1992 Archived

Enforcement actions

Illinois regulators took 4 formal enforcement actions against Lake of Egypt PWD between 2006 and 2024. The most recent was a compliance order (no penalty) in December 2024.

Date By Action Violations covered
Dec 20, 2024 Illinois Compliance order (no penalty) 2 violations (2 health-based): CARBON, TOTAL
Oct 7, 2011 Illinois Signed compliance agreement 1 violation (1 health-based): Total Trihalomethanes (TTHMs)
Nov 13, 2006 Illinois Civil case concluded 2 violations (2 health-based): CARBON, TOTAL
Nov 2, 2006 Illinois Compliance order with a penalty 2 violations (2 health-based): CARBON, TOTAL

What the violations mean

CARBON, TOTAL

2 incidents

The system did not complete a treatment step or action that federal rules require for CARBON, TOTAL (a treatment technique violation).

The utility had to notify customers about each of these violations.

Where the water comes from

Lake of Egypt PWD draws water from 1 surface water intake. 5 other community water systems buy water from Lake of Egypt PWD.

Community systems that buy water from it

Annual water quality report

Lake of Egypt PWD 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