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Public water system record

Aransas County MUD 1

Serves Lamar, Aransas County, TX · 615 people served

Federal records show no health-based violations and 4 monitoring/reporting issues for Aransas County MUD 1 in the last ten years. At least one of these issues remains unresolved.

  • TX0040042
  • ROCKPORT
  • TX
  • 615 served

System profile

Source water Groundwater
ZIP 78382
EPA system ID TX0040042

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
4

Key facts

  • Aransas County MUD 1 draws water from 2 wells.
  • Most recent formal enforcement: compliance order with a penalty by Texas, May 2007.
  • Record on file since 2005, with 16 health-based violations before October 19, 2016.
  • Lead pipe inventory: 0 lead and 0 unknown out of 198 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
Lead and Copper Rule
Monitoring and reporting
 Dec 30, 2025 Active
Lead and Copper Rule
Monitoring and reporting
 Dec 30, 2016 Resolved
Public Notice
OTHER
 Feb 8, 2016 Resolved
Public Notice
OTHER
 Mar 27, 2012 Resolved

Full record since 2005

EPA's records for Aransas County MUD 1 go back to 2005. Before October 19, 2016 they list 16 health-based violations (16 resolved) and 7 monitoring or reporting violations.

Violations that began in Health-based Monitoring and reporting
2000s 10 1
2010 to October 18, 2016 6 6
October 19, 2016 to 2019 0 1
2020s 0 1

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

Show all 16 health-based violations before October 19, 2016
Contaminant Start date Status
Total Trihalomethanes (TTHMs)
Contaminant limit exceeded
Measured 0.089 mg/L, federal limit 0.08 mg/L (1.1 times the limit)
 Jul 1, 2011 Resolved
Total Trihalomethanes (TTHMs)
Contaminant limit exceeded
Measured 0.108 mg/L, federal limit 0.08 mg/L (1.4 times the limit)
 Apr 1, 2011 Resolved
Total Trihalomethanes (TTHMs)
Contaminant limit exceeded
Measured 0.111 mg/L, federal limit 0.08 mg/L (1.4 times the limit)
 Jan 1, 2011 Resolved
Total Trihalomethanes (TTHMs)
Contaminant limit exceeded
Measured 0.108 mg/L, federal limit 0.08 mg/L (1.4 times the limit)
 Oct 1, 2010 Resolved
Total Trihalomethanes (TTHMs)
Contaminant limit exceeded
Measured 0.102 mg/L, federal limit 0.08 mg/L (1.3 times the limit)
 Jul 1, 2010 Resolved
Total Trihalomethanes (TTHMs)
Contaminant limit exceeded
Measured 0.098 mg/L, federal limit 0.08 mg/L (1.2 times the limit)
 Apr 1, 2010 Resolved
Total Trihalomethanes (TTHMs)
Contaminant limit exceeded
Measured 0.083 mg/L, federal limit 0.08 mg/L (at or just above the limit)
 Oct 1, 2009 Resolved
Total Trihalomethanes (TTHMs)
Contaminant limit exceeded
Measured 0.102 mg/L, federal limit 0.08 mg/L (1.3 times the limit)
 Apr 1, 2007 Resolved
Total Trihalomethanes (TTHMs)
Contaminant limit exceeded
Measured 0.133 mg/L, federal limit 0.08 mg/L (1.7 times the limit)
 Jan 1, 2007 Resolved
Total Trihalomethanes (TTHMs)
Contaminant limit exceeded
Measured 0.141 mg/L, federal limit 0.08 mg/L (1.8 times the limit)
 Oct 1, 2006 Resolved
Total Trihalomethanes (TTHMs)
Contaminant limit exceeded
Measured 0.145 mg/L, federal limit 0.08 mg/L (1.8 times the limit)
 Jul 1, 2006 Resolved
Total Trihalomethanes (TTHMs)
Contaminant limit exceeded
Measured 0.137 mg/L, federal limit 0.08 mg/L (1.7 times the limit)
 Apr 1, 2006 Resolved
Total Trihalomethanes (TTHMs)
Contaminant limit exceeded
Measured 0.135 mg/L, federal limit 0.08 mg/L (1.7 times the limit)
 Jan 1, 2006 Resolved
Total Trihalomethanes (TTHMs)
Contaminant limit exceeded
Measured 0.138 mg/L, federal limit 0.08 mg/L (1.7 times the limit)
 Oct 1, 2005 Resolved
Total Trihalomethanes (TTHMs)
Contaminant limit exceeded
Measured 0.139 mg/L, federal limit 0.08 mg/L (1.7 times the limit)
 Jul 1, 2005 Resolved
Total Trihalomethanes (TTHMs)
Contaminant limit exceeded
Measured 0.099 mg/L, federal limit 0.08 mg/L (1.2 times the limit)
 Apr 1, 2005 Resolved

Enforcement actions

Texas regulators took 1 formal enforcement action against Aransas County MUD 1 in 2007. The most recent was a compliance order with a penalty in May 2007.

Date By Action Violations covered
May 11, 2007 Texas Compliance order with a penalty 9 violations (9 health-based): Total Trihalomethanes (TTHMs)

Where the water comes from

Aransas County MUD 1 draws water from 2 wells. 1 other public water system has an emergency connection to Aransas County MUD 1.

Annual water quality report

Aransas County MUD 1 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