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Public water system record

Nueces County WCID 3

Serves Robstown, Corpus Christi and North San Pedro, Nueces County, TX · 14,000 people served

Federal records show 9 health-based violations and 3 monitoring/reporting issues for Nueces County WCID 3 in the last ten years. The most serious issue in this window was a Arsenic violation that EPA lists as archived, not resolved.

  • TX1780005
  • ROBSTOWN
  • TX
  • 14,000 served

System profile

Source water Surface water
ZIP 78380
EPA system ID TX1780005

Verify this system on EPA ECHO →

Health-based violations, last 10 years
9
Resolved
8
Unresolved
0
Archived by EPA
1
Any acute record
No
Monitoring issues, last 10 years
3

Key facts

  • Nueces County WCID 3 draws water from 3 surface water intakes.
  • 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, April 2023.
  • Record on file since 2002, with 9 health-based violations before October 19, 2016.
  • Lead pipe inventory: 0 lead and 0 unknown out of 4,678 service lines.

Check whether Nueces County WCID 3 serves your address

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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
Arsenic
Contaminant limit exceeded
Measured 0.011 mg/L, federal limit 0.01 mg/L (1.1 times the limit)
 330 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 0.083 mg/L, federal limit 0.08 mg/L (at or just above the limit)
 220 Apr 1, 2022 Resolved 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 Jan 1, 2022 Resolved No
Total Trihalomethanes (TTHMs)
Contaminant limit exceeded
Measured 0.083 mg/L, federal limit 0.08 mg/L (at or just above the limit)
 220 Oct 1, 2021 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, 2018 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 Jan 1, 2018 Resolved No
Total Trihalomethanes (TTHMs)
Contaminant limit exceeded
Measured 0.098 mg/L, federal limit 0.08 mg/L (1.2 times the limit)
 220 Oct 1, 2017 Resolved No
Total Trihalomethanes (TTHMs)
Contaminant limit exceeded
Measured 0.089 mg/L, federal limit 0.08 mg/L (1.1 times the limit)
 220 Jul 1, 2017 Resolved No
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, 2017 Resolved No

Monitoring and reporting issues

Since October 2016

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

Issue Start date Status
Long Term 2 Enhanced Surface Water Treatment Rule
Monitoring and reporting
 Aug 1, 2018 Resolved
Lead and Copper Rule
Monitoring and reporting
 Dec 30, 2016 Resolved
Lead and Copper Rule
Monitoring and reporting
 Dec 30, 2013 Resolved

Full record since 2002

EPA's records for Nueces County WCID 3 go back to 2002. Before October 19, 2016 they list 9 health-based violations (9 resolved) and 4 monitoring or reporting violations.

Violations that began in Health-based Monitoring and reporting
2000s 6 2
2010 to October 18, 2016 3 2
October 19, 2016 to 2019 5 2
2020s 4 0

Most recent health-based violation before October 19, 2016: Total Trihalomethanes (TTHMs), began October 2015, Resolved.

Show all 9 health-based violations before October 19, 2016
Contaminant Start date Status
Total Trihalomethanes (TTHMs)
Contaminant limit exceeded
Measured 0.082 mg/L, federal limit 0.08 mg/L (at or just above the limit)
 Oct 1, 2015 Resolved
Total Coliform
Contaminant limit exceeded
 May 1, 2014 Resolved
Total Coliform
Contaminant limit exceeded
 Sep 1, 2013 Resolved
Total Coliform
Contaminant limit exceeded
 Jun 1, 2006 Resolved
Total Trihalomethanes (TTHMs)
Contaminant limit exceeded
Measured 0.081 mg/L, federal limit 0.08 mg/L (at or just above the limit)
 Jan 1, 2006 Resolved
Total Coliform
Contaminant limit exceeded
 Jun 1, 2005 Resolved
Total Coliform
Contaminant limit exceeded
 Jul 1, 2004 Resolved
Total Coliform
Contaminant limit exceeded
 Jul 1, 2003 Resolved
Total Coliform
Contaminant limit exceeded
 Oct 1, 2002 Resolved

Enforcement actions

Texas regulators took 2 formal enforcement actions against Nueces County WCID 3 between 2019 and 2023. The most recent was a compliance order with a penalty in April 2023.

Date By Action Violations covered
Apr 17, 2023 Texas Compliance order with a penalty 3 violations (3 health-based): Total Trihalomethanes (TTHMs)
Aug 29, 2019 Texas Compliance order with a penalty 5 violations (5 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

Arsenic

1 incident

Arsenic exceeded the federal limit

Long-term arsenic exposure is linked to cancer and cardiovascular effects

Where the water comes from

Nueces County WCID 3 draws water from 3 surface water intakes. 1 other community water system buys water from Nueces County WCID 3.

Community systems that buy water from it

Annual water quality report

Nueces County WCID 3 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