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Public water system record

City of Trinidad

Serves Trinidad, Henderson County, TX · 1,482 people served

Federal records show 11 health-based violations and 18 monitoring/reporting issues for City of Trinidad in the last ten years. The most serious issue in this window was a resolved Total Trihalomethanes (TTHMs) violation.

  • TX1070004
  • TRINIDAD
  • TX
  • 1,482 served

System profile

Source water Surface water
ZIP 75163
EPA system ID TX1070004

Verify this system on EPA ECHO →

Health-based violations, last 10 years
11
Resolved
11
Unresolved
0
Any acute record
Yes
Monitoring issues, last 10 years
18

Key facts

  • City of Trinidad draws water from 1 surface water intake.
  • Highest measured level in the last 10 years: Total Trihalomethanes (TTHMs), 0.098 mg/L, federal limit 0.08 mg/L (1.2 times the limit), 2017.
  • Most recent formal enforcement: compliance order with a penalty by Texas, December 2024.
  • Record on file since 1993, with 9 health-based violations before October 19, 2016.
  • Lead pipe inventory: 0 lead and 0 unknown out of 516 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 0.097 mg/L, federal limit 0.08 mg/L (1.2 times the limit)
 220 Jan 1, 2024 Resolved No
Total Trihalomethanes (TTHMs)
Contaminant limit exceeded
Measured 0.097 mg/L, federal limit 0.08 mg/L (1.2 times the limit)
 220 Oct 1, 2023 Resolved No
Total Trihalomethanes (TTHMs)
Contaminant limit exceeded
Measured 0.097 mg/L, federal limit 0.08 mg/L (1.2 times the limit)
 220 Jul 1, 2023 Resolved No
Total Trihalomethanes (TTHMs)
Contaminant limit exceeded
Measured 0.096 mg/L, federal limit 0.08 mg/L (1.2 times the limit)
 220 Apr 1, 2023 Resolved No
Haloacetic Acids (HAA5)
Contaminant limit exceeded
Measured 0.067 mg/L, federal limit 0.06 mg/L (1.1 times the limit)
 220 Oct 1, 2017 Resolved No
Total Trihalomethanes (TTHMs)
Contaminant limit exceeded
Measured 0.081 mg/L, federal limit 0.08 mg/L (at or just above the limit)
 220 Oct 1, 2017 Resolved No
Interim Enhanced Surface Water Treatment Rule
Treatment technique failure
 120 Sep 1, 2017 Resolved Yes
Total Trihalomethanes (TTHMs)
Contaminant limit exceeded
Measured 0.098 mg/L, federal limit 0.08 mg/L (1.2 times the limit)
 220 Jul 1, 2017 Resolved No
Haloacetic Acids (HAA5)
Contaminant limit exceeded
Measured 0.066 mg/L, federal limit 0.06 mg/L (1.1 times the limit)
 220 Jul 1, 2017 Resolved No
Total Trihalomethanes (TTHMs)
Contaminant limit exceeded
Measured 0.097 mg/L, federal limit 0.08 mg/L (1.2 times the limit)
 220 Apr 1, 2017 Resolved No
Total Trihalomethanes (TTHMs)
Contaminant limit exceeded
Measured 0.084 mg/L, federal limit 0.08 mg/L (1.1 times the limit)
 220 Jan 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
Interim Enhanced Surface Water Treatment Rule
Monitoring and reporting
 Nov 1, 2025 Archived
Violation period ended. EPA no longer counts it toward current compliance, but no fix was formally recorded.
Lead and Copper Rule
Monitoring and reporting
 Oct 1, 2025 Active
Interim Enhanced Surface Water Treatment Rule
Monitoring and reporting
 Sep 1, 2025 Archived
Violation period ended. EPA no longer counts it toward current compliance, but no fix was formally recorded.
Public Notice
OTHER
 Feb 26, 2024 Resolved
Public Notice
OTHER
 Jan 19, 2024 Resolved
Public Notice
OTHER
 Aug 17, 2023 Resolved
Public Notice
OTHER
 Jul 7, 2023 Resolved
Public Notice
OTHER
 May 5, 2023 Resolved
Public Notice
OTHER
 Jan 15, 2023 Resolved
Interim Enhanced Surface Water Treatment Rule
Monitoring and reporting
 Nov 1, 2022 Resolved
CARBON, TOTAL
Monitoring and reporting
 Oct 1, 2022 Resolved
Interim Enhanced Surface Water Treatment Rule
Monitoring and reporting
 Mar 1, 2022 Resolved
Lead and Copper Rule
Monitoring and reporting
 Jan 1, 2022 Resolved
Interim Enhanced Surface Water Treatment Rule
Monitoring and reporting
 Oct 1, 2021 Resolved
Interim Enhanced Surface Water Treatment Rule
Monitoring and reporting
 Feb 1, 2019 Resolved
Public Notice
OTHER
 Oct 22, 2017 Resolved
Public Notice
OTHER
 Sep 26, 2017 Resolved
Lead and Copper Rule
Monitoring and reporting
 Oct 1, 2010 Resolved

Full record since 1993

EPA's records for City of Trinidad go back to 1993. Before October 19, 2016 they list 9 health-based violations (9 resolved) and 8 monitoring or reporting violations.

Violations that began in Health-based Monitoring and reporting
1990s 0 2
2000s 2 0
2010 to October 18, 2016 7 6
October 19, 2016 to 2019 7 3
2020s 4 14

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

Show all 9 health-based violations before October 19, 2016
Contaminant Start date Status
Total Trihalomethanes (TTHMs)
Contaminant limit exceeded
Measured 0.084 mg/L, federal limit 0.08 mg/L (1.1 times the limit)
 Apr 1, 2016 Resolved
Total Trihalomethanes (TTHMs)
Contaminant limit exceeded
Measured 0.082 mg/L, federal limit 0.08 mg/L (at or just above the limit)
 Jan 1, 2016 Resolved
Total Trihalomethanes (TTHMs)
Contaminant limit exceeded
Measured 0.099 mg/L, federal limit 0.08 mg/L (1.2 times the limit)
 Oct 1, 2015 Resolved
Total Trihalomethanes (TTHMs)
Contaminant limit exceeded
Measured 0.123 mg/L, federal limit 0.08 mg/L (1.5 times the limit)
 Jul 1, 2015 Resolved
Total Trihalomethanes (TTHMs)
Contaminant limit exceeded
Measured 0.082 mg/L, federal limit 0.08 mg/L (at or just above the limit)
 Apr 1, 2015 Resolved
Total Trihalomethanes (TTHMs)
Contaminant limit exceeded
Measured 0.088 mg/L, federal limit 0.08 mg/L (1.1 times the limit)
 Jan 1, 2015 Resolved
Total Coliform
Contaminant limit exceeded
 Jun 1, 2011 Resolved
Surface Water Treatment Rule
Treatment technique failure
 Oct 1, 2003 Resolved
Surface Water Treatment Rule
Treatment technique failure
 Sep 1, 2003 Resolved

Enforcement actions

Texas regulators took 2 formal enforcement actions against City of Trinidad between 2016 and 2024. The most recent was a compliance order with a penalty in December 2024.

Date By Action Violations covered
Dec 6, 2024 Texas Compliance order with a penalty 6 violations (2 health-based): Public Notice, Total Trihalomethanes (TTHMs)
Feb 23, 2016 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

Haloacetic Acids (HAA5)

2 incidents

Haloacetic acid byproducts exceeded the federal limit

Long-term exposure to HAAs may increase cancer risk

Interim Enhanced Surface Water Treatment Rule

1 incident

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

Where the water comes from

City of Trinidad draws water from 1 surface water intake.

Annual water quality report

City of Trinidad 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