Public water system record

City of Combes

Serves Combes, Cameron County, TX · 2,895 people served

Federal records show 3 health-based violations and 10 monitoring/reporting issues for City of Combes in the last ten years. The most serious issue in this window was a resolved Total Trihalomethanes (TTHMs) violation.

  • TX0310021
  • COMBES
  • TX
  • 2,895 served

System profile

Source water Purchased surface water
ZIP 78535
EPA system ID TX0310021

Verify this system on EPA ECHO →

Health-based violations, last 10 years
3
Resolved
3
Unresolved
0
Any acute record
No
Monitoring issues, last 10 years
10

Key facts

  • City of Combes buys its water from Harlingen Water Works System.
  • Highest measured level in the last 10 years: Total Trihalomethanes (TTHMs), 0.09 mg/L, federal limit 0.08 mg/L (1.1 times the limit), 2022.
  • Record on file since 1991, with 2 health-based violations before October 19, 2016.
  • Lead pipe inventory: 0 lead and 0 unknown out of 1,000 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 0.085 mg/L, federal limit 0.08 mg/L (1.1 times the limit)
220 Jul 1, 2022 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 Apr 1, 2022 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 Jan 1, 2022 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
Revised Total Coliform Rule
Monitoring violation
Jul 1, 2025 Resolved
Revised Total Coliform Rule
Monitoring violation
Jun 1, 2025 Resolved
Revised Total Coliform Rule
Monitoring violation
May 1, 2025 Resolved
Chlorine
Monitoring and reporting
Apr 1, 2025 Archived
Violation period ended. EPA no longer counts it toward current compliance, but no fix was formally recorded.
Revised Total Coliform Rule
Monitoring violation
Apr 1, 2025 Resolved
Revised Total Coliform Rule
Monitoring violation
Dec 1, 2024 Resolved
Public Notice
OTHER
Jan 30, 2022 Resolved
Lead and Copper Rule
Monitoring and reporting
Oct 1, 2020 Resolved
Lead and Copper Rule
Monitoring and reporting
Oct 1, 2015 Resolved

Full record since 1991

EPA's records for City of Combes go back to 1991. Before October 19, 2016 they list 2 health-based violations (1 resolved, 1 archived by EPA without a recorded fix) and 8 monitoring or reporting violations.

Violations that began in Health-based Monitoring and reporting
1990s 1 2
2000s 0 2
2010 to October 18, 2016 1 4
2020s 3 9

Most recent health-based violation before October 19, 2016: Total Coliform, began December 2012, Resolved.

Show all 2 health-based violations before October 19, 2016
Contaminant Start date Status
Total Coliform
Contaminant limit exceeded
Dec 1, 2012 Resolved
Total Coliform
Contaminant limit exceeded
Sep 1, 1993 Archived

What the violations mean

Total Trihalomethanes (TTHMs)

3 incidents

Disinfection byproduct levels exceeded the federal limit

Long-term TTHM exposure may increase bladder cancer risk

Where the water comes from

City of Combes buys its water from Harlingen Water Works System. It lists no wells or intakes of its own. 1 other community water system buys water from City of Combes.

Buys water from

Community systems that buy water from it

Annual water quality report

City of Combes 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.