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Public water system record

St. John Municipal Water Utility

Serves St. John, Lake County, IN · 25,700 people served

Federal records show no health-based violations and no monitoring or reporting issues for St. John Municipal Water Utility in the last ten years.

  • IN5245043
  • ST. JOHN
  • IN
  • 25,700 served

System profile

Source water Groundwater
ZIP 46373
EPA system ID IN5245043

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
0

Key facts

  • St. John Municipal Water Utility draws water from 5 wells (1 of them for emergency, seasonal or other part-time use).
  • Most recent enforcement action: boil water order by Indiana, July 2007.
  • Record on file since 1980, with 3 health-based violations before October 19, 2016.
  • Lead pipe inventory: 0 lead and 0 unknown out of 10,060 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, and no monitoring or reporting violations either.

Full record since 1980

EPA's records for St. John Municipal Water Utility go back to 1980. Before October 19, 2016 they list 3 health-based violations (3 resolved) and 30 monitoring or reporting violations.

Violations that began in Health-based Monitoring and reporting
1980s 0 1
1990s 2 29
2000s 1 0

Most recent health-based violation before October 19, 2016: Total Coliform, began June 2007, Resolved.

Show all 3 health-based violations before October 19, 2016
Contaminant Start date Status
Total Coliform
Contaminant limit exceeded
 Jun 1, 2007 Resolved
Total Coliform
Contaminant limit exceeded
 Oct 1, 1996 Resolved
Total Coliform (acute)
Contaminant limit exceeded
 Jul 1, 1993 Resolved

Enforcement actions

Indiana regulators issued 1 boil water order to St. John Municipal Water Utility in 2007. The most recent was a boil water order in July 2007.

Date By Action Violations covered
Jul 20, 2007 Indiana Boil water order 1 violation (1 health-based): Total Coliform

Where the water comes from

St. John Municipal Water Utility draws water from 5 wells (1 of them for emergency, seasonal or other part-time use). It also has an emergency connection to Schererville Water Department.

Emergency or part-time connections to

Annual water quality report

St. John Municipal Water Utility 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 Indiana.

Certified drinking water labs by state EPA guidance for private wells