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Public water system record

Possum Kingdom WSC

Serves an area of Palo Pinto County, TX · 7,395 people served

Federal records show 7 health-based violations and 7 monitoring/reporting issues for Possum Kingdom WSC in the last ten years. The most serious issue in this window was a resolved LEAD AND COPPER RULE REVISIONS violation.

  • TX1820076
  • GRAFORD
  • TX
  • 7,395 served

System profile

Source water Surface water
ZIP 76449
EPA system ID TX1820076

Verify this system on EPA ECHO →

Health-based violations, last 10 years
7
Resolved
7
Unresolved
0
Any acute record
Yes
Monitoring issues, last 10 years
7

Key facts

  • Possum Kingdom WSC draws water from 1 surface water intake.
  • Highest measured level in the last 10 years: Total Trihalomethanes (TTHMs), 0.117 mg/L, federal limit 0.08 mg/L (1.5 times the limit), 2017.
  • Most recent formal enforcement: compliance order with a penalty by Texas, May 2017.
  • Record on file since 2002, with 6 health-based violations before October 19, 2016.
  • Lead pipe inventory: 0 lead and 0 unknown out of 3,686 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
LEAD AND COPPER RULE REVISIONS
Treatment technique failure
 350 Oct 17, 2024 Resolved No
Interim Enhanced Surface Water Treatment Rule
Treatment technique failure
 120 Jul 1, 2022 Resolved Yes
Interim Enhanced Surface Water Treatment Rule
Treatment technique failure
 120 Sep 1, 2021 Resolved Yes
Total Trihalomethanes (TTHMs)
Contaminant limit exceeded
Measured 0.09 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 0.109 mg/L, federal limit 0.08 mg/L (1.4 times the limit)
 220 Apr 1, 2017 Resolved No
Total Trihalomethanes (TTHMs)
Contaminant limit exceeded
Measured 0.117 mg/L, federal limit 0.08 mg/L (1.5 times the limit)
 220 Jan 1, 2017 Resolved No
Total Trihalomethanes (TTHMs)
Contaminant limit exceeded
Measured 0.116 mg/L, federal limit 0.08 mg/L (1.5 times the limit)
 220 Oct 1, 2016 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 Active
LEAD AND COPPER RULE REVISIONS
RPT
 Oct 17, 2024 Resolved
Interim Enhanced Surface Water Treatment Rule
Monitoring and reporting
 Oct 1, 2024 Resolved
Chlorite
Monitoring and reporting
 Jun 1, 2020 Resolved
Chlorite
Monitoring and reporting
 Jun 1, 2017 Resolved
Chlorite
Monitoring and reporting
 May 1, 2017 Resolved
Public Notice
OTHER
 Oct 5, 2013 Resolved

Full record since 2002

EPA's records for Possum Kingdom WSC go back to 2002. Before October 19, 2016 they list 6 health-based violations (6 resolved) and 11 monitoring or reporting violations.

Violations that began in Health-based Monitoring and reporting
2000s 1 6
2010 to October 18, 2016 5 5
October 19, 2016 to 2019 3 2
2020s 3 4

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

Show all 6 health-based violations before October 19, 2016
Contaminant Start date Status
Total Trihalomethanes (TTHMs)
Contaminant limit exceeded
Measured 0.116 mg/L, federal limit 0.08 mg/L (1.5 times the limit)
 Oct 1, 2016 Resolved
Total Trihalomethanes (TTHMs)
Contaminant limit exceeded
Measured 0.127 mg/L, federal limit 0.08 mg/L (1.6 times the limit)
 Jul 1, 2016 Resolved
Total Trihalomethanes (TTHMs)
Contaminant limit exceeded
Measured 0.108 mg/L, federal limit 0.08 mg/L (1.4 times the limit)
 Apr 1, 2016 Resolved
Total Trihalomethanes (TTHMs)
Contaminant limit exceeded
Measured 0.106 mg/L, federal limit 0.08 mg/L (1.3 times the limit)
 Jan 1, 2016 Resolved
Interim Enhanced Surface Water Treatment Rule (acute)
Treatment technique failure
 May 1, 2013 Resolved
Interim Enhanced Surface Water Treatment Rule (acute)
Treatment technique failure
 Jul 1, 2007 Resolved

Enforcement actions

Texas regulators took 1 formal enforcement action against Possum Kingdom WSC in 2017. The most recent was a compliance order with a penalty in May 2017.

Date By Action Violations covered
May 11, 2017 Texas Compliance order with a penalty 7 violations (7 health-based): Total Trihalomethanes (TTHMs)

What the violations mean

Total Trihalomethanes (TTHMs)

4 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

LEAD AND COPPER RULE REVISIONS

1 incident

The system did not complete a treatment step or action that the LEAD AND COPPER RULE REVISIONS requires (a treatment technique violation).

The utility had to notify customers about this violation.

Where the water comes from

Possum Kingdom WSC draws water from 1 surface water intake.

Annual water quality report

Possum Kingdom 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