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Public water system record

Lexington PWS

Serves Lexington, Lafayette County, MO · 4,729 people served

Federal records show 4 health-based violations and 1 monitoring/reporting issue for Lexington PWS in the last ten years. The most serious issue in this window was a resolved Interim Enhanced Surface Water Treatment Rule violation.

  • MO1010464
  • LEXINGTON
  • MO
  • 4,729 served

System profile

Source water Groundwater
ZIP 64067
EPA system ID MO1010464

Verify this system on EPA ECHO →

Health-based violations, last 10 years
4
Resolved
4
Unresolved
0
Any acute record
Yes
Monitoring issues, last 10 years
1

Key facts

  • Lexington PWS draws water from 3 wells.
  • Record on file since 1989, with 14 health-based violations before October 19, 2016.
  • Lead pipe inventory: 0 lead and 2,437 unknown out of 2,504 service lines.

Check whether Lexington PWS serves your address

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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
Interim Enhanced Surface Water Treatment Rule
Treatment technique failure
 120 Jun 1, 2019 Resolved Yes
Interim Enhanced Surface Water Treatment Rule
Treatment technique failure
 120 Mar 1, 2019 Resolved Yes
Long Term 2 Enhanced Surface Water Treatment Rule
Treatment technique failure
 120 Dec 1, 2017 Resolved No
Long Term 2 Enhanced Surface Water Treatment Rule
Treatment technique failure
 120 Jul 1, 2017 Resolved No

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 Resolved

Full record since 1989

EPA's records for Lexington PWS go back to 1989. Before October 19, 2016 they list 14 health-based violations (14 resolved) and 24 monitoring or reporting violations.

Violations that began in Health-based Monitoring and reporting
1980s 0 22
1990s 1 0
2000s 8 2
2010 to October 18, 2016 5 0
October 19, 2016 to 2019 4 0
2020s 0 1

Most recent health-based violation before October 19, 2016: CARBON, TOTAL, began January 2015, Resolved.

Show all 14 health-based violations before October 19, 2016
Contaminant Start date Status
CARBON, TOTAL
Treatment technique failure
 Jan 1, 2015 Resolved
CARBON, TOTAL
Treatment technique failure
 Oct 1, 2014 Resolved
CARBON, TOTAL
Treatment technique failure
 Jul 1, 2014 Resolved
CARBON, TOTAL
Treatment technique failure
 Jul 1, 2011 Resolved
CARBON, TOTAL
Treatment technique failure
 Apr 1, 2011 Resolved
Total Trihalomethanes (TTHMs)
Contaminant limit exceeded
Measured 93.9 µg/L, federal limit 80 µg/L (1.2 times the limit)
 Apr 1, 2006 Resolved
Total Trihalomethanes (TTHMs)
Contaminant limit exceeded
 Jan 1, 2006 Resolved
Total Trihalomethanes (TTHMs)
Contaminant limit exceeded
 Oct 1, 2005 Resolved
Total Trihalomethanes (TTHMs)
Contaminant limit exceeded
 Jul 1, 2005 Resolved
Total Trihalomethanes (TTHMs)
Contaminant limit exceeded
 Apr 1, 2005 Resolved
Total Trihalomethanes (TTHMs)
Contaminant limit exceeded
 Jan 1, 2005 Resolved
Total Trihalomethanes (TTHMs)
Contaminant limit exceeded
 Oct 1, 2004 Resolved
Total Trihalomethanes (TTHMs)
Contaminant limit exceeded
 Jul 1, 2004 Resolved
Surface Water Treatment Rule
Treatment technique failure
 Jul 1, 1993 Resolved

What the violations mean

Interim Enhanced Surface Water Treatment Rule

2 incidents

The system did not meet a filtration or treatment requirement for surface water

Inadequate treatment of surface water can let pathogens such as Cryptosporidium and Giardia through

Long Term 2 Enhanced Surface Water Treatment Rule

2 incidents

The system failed required surface water treatment or filtration standards

Untreated or inadequately treated surface water can contain bacteria and viruses

Where the water comes from

Lexington PWS draws water from 3 wells. 1 other community water system buys water from Lexington PWS.

Community systems that buy water from it

Annual water quality report

Lexington PWS 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.

Where the state allows it, systems serving fewer than 10,000 people may publish the report in a local newspaper or news site instead of mailing it, and must provide a copy on request.

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.

Certified drinking water labs by state EPA guidance for private wells