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Public water system record

E M C Water Supply

Serves an area of Marion County and Cass County, TX · 2,952 people served

Federal records show 8 health-based violations and 4 monitoring/reporting issues for E M C Water Supply in the last ten years. The most serious issue in this window was a resolved Total Trihalomethanes (TTHMs) violation.

  • TX1580066
  • JEFFERSON
  • TX
  • 2,952 served

System profile

Source water Groundwater
ZIP 75657
EPA system ID TX1580066

Verify this system on EPA ECHO →

Health-based violations, last 10 years
8
Resolved
8
Unresolved
0
Any acute record
No
Monitoring issues, last 10 years
4

Key facts

  • E M C Water Supply draws water from 4 wells.
  • Highest measured level in the last 10 years: Total Trihalomethanes (TTHMs), 0.128 mg/L, federal limit 0.08 mg/L (1.6 times the limit), 2021.
  • Most recent formal enforcement: compliance order with a penalty by Texas, January 2023.
  • Record on file since 2008, with 4 health-based violations before October 19, 2016.
  • Lead pipe inventory: 0 lead and 0 unknown out of 985 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 0.113 mg/L, federal limit 0.08 mg/L (1.4 times the limit)
 220 Apr 1, 2025 Resolved No
Total Trihalomethanes (TTHMs)
Contaminant limit exceeded
Measured 0.11 mg/L, federal limit 0.08 mg/L (1.4 times the limit)
 220 Jan 1, 2025 Resolved No
Total Trihalomethanes (TTHMs)
Contaminant limit exceeded
Measured 0.107 mg/L, federal limit 0.08 mg/L (1.3 times the limit)
 220 Oct 1, 2024 Resolved No
Total Trihalomethanes (TTHMs)
Contaminant limit exceeded
Measured 0.114 mg/L, federal limit 0.08 mg/L (1.4 times the limit)
 220 Jul 1, 2023 Resolved No
Total Trihalomethanes (TTHMs)
Contaminant limit exceeded
Measured 0.103 mg/L, federal limit 0.08 mg/L (1.3 times the limit)
 220 Apr 1, 2023 Resolved No
Total Trihalomethanes (TTHMs)
Contaminant limit exceeded
Measured 0.094 mg/L, federal limit 0.08 mg/L (1.2 times the limit)
 220 Apr 1, 2022 Resolved No
Total Trihalomethanes (TTHMs)
Contaminant limit exceeded
Measured 0.113 mg/L, federal limit 0.08 mg/L (1.4 times the limit)
 220 Jan 1, 2022 Resolved No
Total Trihalomethanes (TTHMs)
Contaminant limit exceeded
Measured 0.128 mg/L, federal limit 0.08 mg/L (1.6 times the limit)
 220 Oct 1, 2021 Resolved No

Monitoring and reporting issues

Since October 2016

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

Issue Start date Status
Consumer Confidence Rule
OTHER
 Jul 1, 2025 Resolved
Lead and Copper Rule
Monitoring and reporting
 Oct 1, 2024 Resolved
E. coli
Monitoring and reporting
 Nov 26, 2020 Resolved
E. coli
Monitoring and reporting
 Jul 30, 2020 Resolved

Full record since 2008

EPA's records for E M C Water Supply go back to 2008. Before October 19, 2016 they list 4 health-based violations (4 resolved) and 3 monitoring or reporting violations.

Violations that began in Health-based Monitoring and reporting
2000s 0 2
2010 to October 18, 2016 4 1
2020s 8 4

Most recent health-based violation before October 19, 2016: Total Trihalomethanes (TTHMs), began July 2012, Resolved.

Show all 4 health-based violations before October 19, 2016
Contaminant Start date Status
Total Trihalomethanes (TTHMs)
Contaminant limit exceeded
Measured 0.101 mg/L, federal limit 0.08 mg/L (1.3 times the limit)
 Jul 1, 2012 Resolved
Total Trihalomethanes (TTHMs)
Contaminant limit exceeded
Measured 0.093 mg/L, federal limit 0.08 mg/L (1.2 times the limit)
 Apr 1, 2012 Resolved
Total Trihalomethanes (TTHMs)
Contaminant limit exceeded
Measured 0.12 mg/L, federal limit 0.08 mg/L (1.5 times the limit)
 Jan 1, 2012 Resolved
Total Trihalomethanes (TTHMs)
Contaminant limit exceeded
Measured 0.086 mg/L, federal limit 0.08 mg/L (1.1 times the limit)
 Oct 1, 2011 Resolved

Enforcement actions

Texas regulators took 2 formal enforcement actions against E M C Water Supply between 2013 and 2023. The most recent was a compliance order with a penalty in January 2023.

Date By Action Violations covered
Jan 24, 2023 Texas Compliance order with a penalty 3 violations (3 health-based): Total Trihalomethanes (TTHMs)
Apr 27, 2013 Texas Compliance order with a penalty 4 violations (4 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

Where the water comes from

E M C Water Supply draws water from 4 wells.

Annual water quality report

E M C Water Supply 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