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Public water system record

Shelbyville WSC

Serves an area of Shelby County, TX that includes Shelbyville · 1,800 people served

Federal records show 5 health-based violations and 13 monitoring/reporting issues for Shelbyville WSC in the last ten years. The most serious issue in this window was a resolved Total Trihalomethanes (TTHMs) violation.

  • TX2100014
  • SHELBYVILLE
  • TX
  • 1,800 served

System profile

Source water Groundwater
ZIP 75973
EPA system ID TX2100014

Verify this system on EPA ECHO →

Health-based violations, last 10 years
5
Resolved
5
Unresolved
0
Any acute record
No
Monitoring issues, last 10 years
13

Key facts

  • Shelbyville WSC draws water from 2 wells.
  • Highest measured level in the last 10 years: Total Trihalomethanes (TTHMs), 0.212 mg/L, federal limit 0.08 mg/L (2.7 times the limit), 2020.
  • Most recent formal enforcement: compliance order with a penalty by Texas, March 2006.
  • Record on file since 2003, with 6 health-based violations before October 19, 2016.
  • Lead pipe inventory: 0 lead and 0 unknown out of 416 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 0.099 mg/L, federal limit 0.08 mg/L (1.2 times the limit)
 220 Jul 1, 2020 Resolved No
Total Trihalomethanes (TTHMs)
Contaminant limit exceeded
Measured 0.154 mg/L, federal limit 0.08 mg/L (1.9 times the limit)
 220 Apr 1, 2020 Resolved No
Total Trihalomethanes (TTHMs)
Contaminant limit exceeded
Measured 0.212 mg/L, federal limit 0.08 mg/L (2.7 times the limit)
 220 Jan 1, 2020 Resolved No
Total Trihalomethanes (TTHMs)
Contaminant limit exceeded
Measured 0.173 mg/L, federal limit 0.08 mg/L (2.2 times the limit)
 220 Oct 1, 2019 Resolved No
Total Trihalomethanes (TTHMs)
Contaminant limit exceeded
Measured 0.125 mg/L, federal limit 0.08 mg/L (1.6 times the limit)
 220 Jul 1, 2019 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
 Nov 12, 2021 Resolved
Public Notice
OTHER
 Aug 20, 2021 Resolved
Total Trihalomethanes (TTHMs)
Monitoring and reporting
 Oct 7, 2020 Resolved
Public Notice
OTHER
 Sep 4, 2020 Active
Total Trihalomethanes (TTHMs)
Monitoring and reporting
 Mar 30, 2020 Resolved
Haloacetic Acids (HAA5)
Monitoring and reporting
 Mar 30, 2020 Resolved
Total Trihalomethanes (TTHMs)
Monitoring and reporting
 Jan 16, 2020 Resolved
Public Notice
OTHER
 Jan 4, 2020 Active
Bromate
Monitoring and reporting
 Jan 1, 2020 Resolved
Lead and Copper Rule
Monitoring and reporting
 Oct 1, 2019 Resolved
Chlorine
Monitoring and reporting
 Jul 1, 2019 Resolved
Chlorine
Monitoring and reporting
 Apr 1, 2019 Resolved
Chlorine
Monitoring and reporting
 Jan 1, 2019 Resolved

Full record since 2003

EPA's records for Shelbyville WSC go back to 2003. Before October 19, 2016 they list 6 health-based violations (6 resolved) and 18 monitoring or reporting violations.

Violations that began in Health-based Monitoring and reporting
2000s 6 14
2010 to October 18, 2016 0 4
October 19, 2016 to 2019 2 4
2020s 3 9

Most recent health-based violation before October 19, 2016: Total Trihalomethanes (TTHMs), began July 2005, Resolved.

Show all 6 health-based violations before October 19, 2016
Contaminant Start date Status
Total Trihalomethanes (TTHMs)
Contaminant limit exceeded
Measured 0.098 mg/L, federal limit 0.08 mg/L (1.2 times the limit)
 Jul 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)
 Apr 1, 2005 Resolved
Total Trihalomethanes (TTHMs)
Contaminant limit exceeded
Measured 0.126 mg/L, federal limit 0.08 mg/L (1.6 times the limit)
 Apr 1, 2005 Resolved
Total Trihalomethanes (TTHMs)
Contaminant limit exceeded
Measured 0.125 mg/L, federal limit 0.08 mg/L (1.6 times the limit)
 Jan 1, 2005 Resolved
Haloacetic Acids (HAA5)
Contaminant limit exceeded
Measured 0.072 mg/L, federal limit 0.06 mg/L (1.2 times the limit)
 Jan 1, 2005 Resolved
Total Trihalomethanes (TTHMs)
Contaminant limit exceeded
Measured 0.093 mg/L, federal limit 0.08 mg/L (1.2 times the limit)
 Oct 1, 2004 Resolved

Enforcement actions

Texas regulators took 1 formal enforcement action against Shelbyville WSC in 2006. The most recent was a compliance order with a penalty in March 2006.

Date By Action Violations covered
Mar 6, 2006 Texas Compliance order with a penalty 6 violations (6 health-based): Total Trihalomethanes (TTHMs), Haloacetic Acids (HAA5)

What the violations mean

Total Trihalomethanes (TTHMs)

5 incidents

Disinfection byproduct levels exceeded the federal limit

Long-term TTHM exposure may increase bladder cancer risk

Where the water comes from

Shelbyville WSC draws water from 2 wells.

Annual water quality report

Shelbyville WSC 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