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Public water system record

City of Nederland

Serves Nederland, Jefferson County, TX · 18,856 people served

Federal records show 8 health-based violations and 6 monitoring/reporting issues for City of Nederland in the last ten years. The most serious issue in this window was a Haloacetic Acids (HAA5) violation that EPA lists as archived, not resolved.

  • TX1230006
  • NEDERLAND
  • TX
  • 18,856 served

System profile

Source water Surface water
ZIP 77627
EPA system ID TX1230006

Verify this system on EPA ECHO →

Health-based violations, last 10 years
8
Resolved
2
Unresolved
0
Archived by EPA
6
Any acute record
Yes
Monitoring issues, last 10 years
6

Key facts

  • City of Nederland draws water from 1 surface water intake.
  • Highest measured level in the last 10 years: Haloacetic Acids (HAA5), 0.095 mg/L, federal limit 0.06 mg/L (1.6 times the limit), 2025.
  • Most recent enforcement action: boil water order by Texas, February 2024.
  • Record on file since 1992, with 9 health-based violations before October 19, 2016.
  • Lead pipe inventory: 0 lead and 735 unknown out of 879 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
Haloacetic Acids (HAA5)
Contaminant limit exceeded
Measured 0.089 mg/L, federal limit 0.06 mg/L (1.5 times the limit)
 220 Oct 1, 2025 Archived
Violation period ended. EPA no longer counts it toward current compliance, but no fix was formally recorded.
 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, 2025 Archived
Violation period ended. EPA no longer counts it toward current compliance, but no fix was formally recorded.
 No
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, 2025 Archived
Violation period ended. EPA no longer counts it toward current compliance, but no fix was formally recorded.
 No
Haloacetic Acids (HAA5)
Contaminant limit exceeded
Measured 0.091 mg/L, federal limit 0.06 mg/L (1.5 times the limit)
 220 Jul 1, 2025 Archived
Violation period ended. EPA no longer counts it toward current compliance, but no fix was formally recorded.
 No
Total Trihalomethanes (TTHMs)
Contaminant limit exceeded
Measured 0.085 mg/L, federal limit 0.08 mg/L (1.1 times the limit)
 220 Apr 1, 2025 Archived
Violation period ended. EPA no longer counts it toward current compliance, but no fix was formally recorded.
 No
Haloacetic Acids (HAA5)
Contaminant limit exceeded
Measured 0.095 mg/L, federal limit 0.06 mg/L (1.6 times the limit)
 220 Apr 1, 2025 Archived
Violation period ended. EPA no longer counts it toward current compliance, but no fix was formally recorded.
 No
Interim Enhanced Surface Water Treatment Rule
Treatment technique failure
 120 Feb 1, 2024 Resolved Yes
Interim Enhanced Surface Water Treatment Rule
Treatment technique failure
 120 Feb 1, 2021 Resolved Yes

Monitoring and reporting issues

Since October 2016

Missed tests or reports, not contaminants found above a limit.

Issue Start date Status
Public Notice
OTHER
 Mar 20, 2021 Resolved
Public Notice
OTHER
 Mar 20, 2021 Resolved
Public Notice
OTHER
 Mar 19, 2021 Resolved
Public Notice
OTHER
 Jul 12, 2019 Resolved
Interim Enhanced Surface Water Treatment Rule
Monitoring and reporting
 Jun 1, 2018 Resolved
Interim Enhanced Surface Water Treatment Rule
Monitoring and reporting
 May 1, 2018 Resolved

Full record since 1992

EPA's records for City of Nederland go back to 1992. Before October 19, 2016 they list 9 health-based violations (6 resolved, 3 archived by EPA without a recorded fix) and 5 monitoring or reporting violations.

Violations that began in Health-based Monitoring and reporting
1990s 3 3
2000s 6 1
2010 to October 18, 2016 0 1
October 19, 2016 to 2019 0 3
2020s 8 3

Most recent health-based violation before October 19, 2016: Haloacetic Acids (HAA5), began April 2005, Resolved.

Show all 9 health-based violations before October 19, 2016
Contaminant Start date Status
Haloacetic Acids (HAA5)
Contaminant limit exceeded
Measured 0.068 mg/L, federal limit 0.06 mg/L (1.1 times the limit)
 Apr 1, 2005 Resolved
Haloacetic Acids (HAA5)
Contaminant limit exceeded
Measured 0.065 mg/L, federal limit 0.06 mg/L (1.1 times the limit)
 Jan 1, 2005 Resolved
Haloacetic Acids (HAA5)
Contaminant limit exceeded
Measured 0.065 mg/L, federal limit 0.06 mg/L (1.1 times the limit)
 Oct 1, 2004 Resolved
Total Trihalomethanes (TTHMs)
Contaminant limit exceeded
Measured 0.082 mg/L, federal limit 0.08 mg/L (at or just above the limit)
 Jul 1, 2004 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, 2004 Resolved
Haloacetic Acids (HAA5)
Contaminant limit exceeded
Measured 0.067 mg/L, federal limit 0.06 mg/L (1.1 times the limit)
 Apr 1, 2004 Resolved
Total Coliform
Contaminant limit exceeded
 May 1, 1992 Archived
Total Coliform (acute)
Contaminant limit exceeded
 May 1, 1992 Archived
Total Coliform
Contaminant limit exceeded
 Feb 1, 1992 Archived

Enforcement actions

Texas regulators took 2 formal enforcement actions against City of Nederland and issued 1 boil water order between 2005 and 2024, filed as 4 records in EPA's data. The most recent was a boil water order in February 2024.

Date By Action Violations covered
Feb 1, 2024 Texas Boil water order 1 violation (1 health-based): Interim Enhanced Surface Water Treatment Rule
Jul 15, 2005 Texas Compliance order with a penalty 6 violations (6 health-based): Haloacetic Acids (HAA5), Total Trihalomethanes (TTHMs)
May 24, 2005 Texas Compliance order with a penalty 2 violations (2 health-based): Total Trihalomethanes (TTHMs), Haloacetic Acids (HAA5)

What the violations mean

Haloacetic Acids (HAA5)

3 incidents

Haloacetic acid byproducts exceeded the federal limit

Long-term exposure to HAAs may increase cancer risk

Total Trihalomethanes (TTHMs)

3 incidents

Disinfection byproduct levels exceeded the federal limit

Long-term TTHM exposure may increase bladder cancer risk

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

Where the water comes from

City of Nederland draws water from 1 surface water intake. 1 other community water system buys water from City of Nederland. 1 other public water system has an emergency connection to City of Nederland.

Community systems that buy water from it

Annual water quality report

City of Nederland 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.

Systems serving 10,000 or more people must mail or deliver the report to every customer, and from 2027 they must send it twice a year.

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