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Public water system record

CVWS Site 1

Serves an area of Harrison County, TX · 426 people served

Federal records show 6 health-based violations and 8 monitoring/reporting issues for CVWS Site 1 in the last ten years. The most serious issue in this window was a resolved Total Trihalomethanes (TTHMs) violation.

  • TX1020047
  • KARNACK
  • TX
  • 426 served

System profile

Source water Groundwater
ZIP 75661
EPA system ID TX1020047

Verify this system on EPA ECHO →

Health-based violations, last 10 years
6
Resolved
6
Unresolved
0
Any acute record
No
Monitoring issues, last 10 years
8

Key facts

  • CVWS Site 1 draws water from 1 well.
  • Highest measured level in the last 10 years: Total Trihalomethanes (TTHMs), 0.092 mg/L, federal limit 0.08 mg/L (1.2 times the limit), 2022.
  • Most recent formal enforcement: compliance order with a penalty by Texas, November 2023.
  • Record on file since 1991, with 7 health-based violations before October 19, 2016.
  • Lead pipe inventory: 0 lead and 0 unknown out of 142 service lines.

Check whether CVWS Site 1 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
Total Trihalomethanes (TTHMs)
Contaminant limit exceeded
Measured 0.091 mg/L, federal limit 0.08 mg/L (1.1 times the limit)
 220 Jan 1, 2023 Resolved No
Total Trihalomethanes (TTHMs)
Contaminant limit exceeded
Measured 0.092 mg/L, federal limit 0.08 mg/L (1.2 times the limit)
 220 Oct 1, 2022 Resolved No
Total Trihalomethanes (TTHMs)
Contaminant limit exceeded
Measured 0.086 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 0.091 mg/L, federal limit 0.08 mg/L (1.1 times the limit)
 220 Oct 1, 2018 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, 2018 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 Apr 1, 2018 Resolved No

Monitoring and reporting issues

Since October 2016

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

Issue Start date Status
Public Notice
OTHER
 Apr 15, 2024 Resolved
Public Notice
OTHER
 Mar 23, 2023 Resolved
Total Trihalomethanes (TTHMs)
Monitoring and reporting
 Mar 8, 2023 Resolved
Lead and Copper Rule
Monitoring and reporting
 Dec 30, 2021 Resolved
Chlorine
Monitoring and reporting
 Jan 1, 2021 Resolved
Public Notice
OTHER
 Jul 30, 2018 Resolved
Chlorine
Monitoring and reporting
 Apr 1, 2018 Resolved
Revised Total Coliform Rule
Monitoring violation
 Apr 1, 2017 Resolved

Full record since 1991

EPA's records for CVWS Site 1 go back to 1991. Before October 19, 2016 they list 7 health-based violations (5 resolved, 2 archived by EPA without a recorded fix) and 21 monitoring or reporting violations.

Violations that began in Health-based Monitoring and reporting
1990s 2 6
2000s 2 5
2010 to October 18, 2016 3 10
October 19, 2016 to 2019 3 3
2020s 3 5

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

Show all 7 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)
 Jan 1, 2015 Resolved
Total Trihalomethanes (TTHMs)
Contaminant limit exceeded
Measured 0.091 mg/L, federal limit 0.08 mg/L (1.1 times the limit)
 Oct 1, 2014 Resolved
Total Trihalomethanes (TTHMs)
Contaminant limit exceeded
Measured 0.085 mg/L, federal limit 0.08 mg/L (1.1 times the limit)
 Jul 1, 2014 Resolved
Total Trihalomethanes (TTHMs)
Contaminant limit exceeded
Measured 0.097 mg/L, federal limit 0.08 mg/L (1.2 times the limit)
 Jul 1, 2006 Resolved
Total Trihalomethanes (TTHMs)
Contaminant limit exceeded
Measured 0.105 mg/L, federal limit 0.08 mg/L (1.3 times the limit)
 Apr 1, 2006 Resolved
Total Coliform
Contaminant limit exceeded
 Jun 1, 1991 Archived
Total Coliform
Contaminant limit exceeded
 Mar 1, 1991 Archived

Enforcement actions

Texas regulators took 3 formal enforcement actions against CVWS Site 1 between 2015 and 2023. The most recent was a compliance order with a penalty in November 2023.

Date By Action Violations covered
Nov 14, 2023 Texas Compliance order with a penalty 3 violations (3 health-based): Total Trihalomethanes (TTHMs)
Oct 1, 2019 Texas Compliance order with a penalty 3 violations (2 health-based): Total Trihalomethanes (TTHMs), Chlorine
May 21, 2015 Texas Compliance order with a penalty 8 violations (3 health-based): Lead and Copper Rule, Total Trihalomethanes (TTHMs), Public Notice

What the violations mean

Total Trihalomethanes (TTHMs)

6 incidents

Disinfection byproduct levels exceeded the federal limit

Long-term TTHM exposure may increase bladder cancer risk

Where the water comes from

CVWS Site 1 draws water from 1 well.

Annual water quality report

CVWS Site 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.

Systems serving 500 or fewer people may meet the rule by telling customers the report is available on request, so you may need to ask CVWS Site 1 for a copy.

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