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Public water system record

City of De Leon

Serves De Leon, Comanche County, TX · 2,171 people served

Federal records show 8 health-based violations and 10 monitoring/reporting issues for City of De Leon in the last ten years. The most serious issue in this window was a resolved Total Trihalomethanes (TTHMs) violation.

  • TX0470002
  • DE LEON
  • TX
  • 2,171 served

System profile

Source water Purchased surface water
ZIP 76444
EPA system ID TX0470002

Verify this system on EPA ECHO →

Health-based violations, last 10 years
8
Resolved
8
Unresolved
0
Any acute record
No
Monitoring issues, last 10 years
10

Key facts

  • City of De Leon buys its water from Upper Leon River MWD.
  • Highest measured level in the last 10 years: Total Trihalomethanes (TTHMs), 0.109 mg/L, federal limit 0.08 mg/L (1.4 times the limit), 2023.
  • Most recent formal enforcement: compliance order with a penalty by Texas, August 2024.
  • Record on file since 2014, with 1 health-based violation before October 19, 2016.
  • Lead pipe inventory: 0 lead and 0 unknown out of 1,098 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
Total Trihalomethanes (TTHMs)
Contaminant limit exceeded
Measured 0.082 mg/L, federal limit 0.08 mg/L (at or just above the limit)
 220 Jul 1, 2024 Resolved No
Total Trihalomethanes (TTHMs)
Contaminant limit exceeded
Measured 0.094 mg/L, federal limit 0.08 mg/L (1.2 times the limit)
 220 Apr 1, 2024 Resolved No
Total Trihalomethanes (TTHMs)
Contaminant limit exceeded
Measured 0.09 mg/L, federal limit 0.08 mg/L (1.1 times the limit)
 220 Apr 1, 2024 Resolved No
Total Trihalomethanes (TTHMs)
Contaminant limit exceeded
Measured 0.103 mg/L, federal limit 0.08 mg/L (1.3 times the limit)
 220 Jan 1, 2024 Resolved No
Total Trihalomethanes (TTHMs)
Contaminant limit exceeded
Measured 0.109 mg/L, federal limit 0.08 mg/L (1.4 times the limit)
 220 Oct 1, 2023 Resolved No
Total Trihalomethanes (TTHMs)
Contaminant limit exceeded
Measured 0.101 mg/L, federal limit 0.08 mg/L (1.3 times the limit)
 220 Jul 1, 2023 Resolved No
Total Trihalomethanes (TTHMs)
Contaminant limit exceeded
Measured 0.101 mg/L, federal limit 0.08 mg/L (1.3 times the limit)
 220 Apr 1, 2023 Resolved No
Total Trihalomethanes (TTHMs)
Contaminant limit exceeded
Measured 0.087 mg/L, federal limit 0.08 mg/L (1.1 times the limit)
 220 Jan 1, 2023 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 Active
Public Notice
OTHER
 Feb 3, 2020 Resolved
Chlorine
Monitoring and reporting
 Oct 1, 2019 Resolved
Lead and Copper Rule
Monitoring and reporting
 Oct 1, 2019 Resolved
Consumer Confidence Rule
OTHER
 Jul 1, 2019 Resolved
Lead and Copper Rule
Monitoring and reporting
 Dec 30, 2018 Resolved
Total Trihalomethanes (TTHMs)
Monitoring and reporting
 Dec 25, 2018 Resolved
Lead and Copper Rule
Monitoring and reporting
 Oct 1, 2018 Resolved
Chlorine
Monitoring and reporting
 Apr 1, 2018 Resolved
Public Notice
OTHER
 Nov 10, 2015 Resolved

Full record since 2014

EPA's records for City of De Leon go back to 2014. Before October 19, 2016 they list 1 health-based violation (1 resolved) and 5 monitoring or reporting violations.

Violations that began in Health-based Monitoring and reporting
2010 to October 18, 2016 1 5
October 19, 2016 to 2019 0 7
2020s 8 2

Most recent health-based violation before October 19, 2016: Total Coliform, began June 2015, Resolved.

Show the health-based violation before October 19, 2016
Contaminant Start date Status
Total Coliform
Contaminant limit exceeded
 Jun 1, 2015 Resolved

Enforcement actions

Texas regulators took 1 formal enforcement action against City of De Leon in 2024. The most recent was a compliance order with a penalty in August 2024.

Date By Action Violations covered
Aug 28, 2024 Texas Compliance order with a penalty 8 violations (8 health-based): Total Trihalomethanes (TTHMs)

What the violations mean

Total Trihalomethanes (TTHMs)

8 incidents

Disinfection byproduct levels exceeded the federal limit

Long-term TTHM exposure may increase bladder cancer risk

Where the water comes from

City of De Leon buys its water from Upper Leon River MWD. It lists no wells or intakes of its own.

Buys water from

Annual water quality report

City of De Leon 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 Texas.

Certified drinking water labs by state EPA guidance for private wells