Public water system record

Lake Adelle Subd

Serves an area of Jefferson County, MO · 380 people served

Federal records show no health-based violations and 6 monitoring/reporting issues for Lake Adelle Subd in the last ten years. At least one of these issues remains unresolved.

  • MO6036077
  • CEDAR HILL
  • MO
  • 380 served

System profile

Source water Groundwater
ZIP 63016
EPA system ID MO6036077

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
6

Key facts

  • Lake Adelle Subd draws water from 2 wells.
  • Most recent enforcement action: boil water order by Missouri, April 2006.
  • Record on file since 1991, with 3 health-based violations before October 20, 2016.
  • Lead pipe inventory: 0 lead and 156 unknown out of 156 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 REVISIONS
RPT
Oct 17, 2024 Resolved
Revised Total Coliform Rule
Monitoring violation
Mar 1, 2023 Resolved
Public Notice
OTHER
Sep 21, 2006 Resolved
Public Notice
OTHER
May 25, 2006 Resolved
Public Notice
OTHER
Apr 26, 2006 Resolved

Full record since 1991

EPA's records for Lake Adelle Subd go back to 1991. Before October 20, 2016 they list 3 health-based violations (3 resolved) and 15 monitoring or reporting violations.

Violations that began in Health-based Monitoring and reporting
1990s 0 3
2000s 3 11
2010 to October 19, 2016 0 1
2020s 0 3

Most recent health-based violation before October 20, 2016: Total Coliform, began April 2006, Resolved.

Show all 3 health-based violations before October 20, 2016
Contaminant Start date Status
Total Coliform
Contaminant limit exceeded
Apr 1, 2006 Resolved
Total Coliform (acute)
Contaminant limit exceeded
Apr 1, 2006 Resolved
Total Coliform
Contaminant limit exceeded
Aug 1, 2004 Resolved

Enforcement actions

Missouri regulators issued 1 boil water order to Lake Adelle Subd in 2006. The most recent was a boil water order in April 2006.

Date By Action Violations covered
Apr 20, 2006 Missouri Boil water order 2 violations (2 health-based): Total Coliform

Where the water comes from

Lake Adelle Subd draws water from 2 wells.

Annual water quality report

Lake Adelle Subd 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 500 or fewer people may meet the rule by telling customers the report is available on request, so you may need to ask Lake Adelle Subd for a copy.

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 Missouri.