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Public water system record

Texoma Hills

On record as serving Marshall County, OK · Serves 212 people

Federal records show 12 health-based violations and 3 monitoring/reporting issues for Texoma Hills in the last ten years. The most serious issue in this window was a Total Trihalomethanes (TTHMs) violation that EPA lists as archived, not resolved.

  • OK2004538
  • MADILL
  • OK
  • 212 served

System profile

Source water Purchased surface water
ZIP 73446
EPA system ID OK2004538

Verify this system on EPA ECHO →

Health-based violations, last 10 years
12
Resolved
9
Unresolved
0
Archived by EPA
3
Any acute record
No
Monitoring issues, last 10 years
3

Key facts

  • Texoma Hills buys its water from Marshall County Rural Water District #2.
  • Highest measured level in the last 10 years: Total Trihalomethanes (TTHMs), 0.109 mg/L, federal limit 0.08 mg/L (1.4 times the limit), 2022.
  • Most recent formal enforcement: compliance order (no penalty) by Oklahoma, April 2025.
  • Record on file since 1991, with 2 health-based violations before October 19, 2016.
  • Lead pipe inventory: 0 lead and 112 unknown out of 112 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 0.084 mg/L, federal limit 0.08 mg/L (1.1 times the limit)
 220 Jan 1, 2025 Archived
Violation period ended. EPA no longer counts it toward current compliance, but no fix was formally recorded.
 No
LEAD AND COPPER RULE REVISIONS
Treatment technique failure
 350 Oct 17, 2024 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, 2024 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 0.082 mg/L, federal limit 0.08 mg/L (at or just above the limit)
 220 Jul 1, 2024 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 0.084 mg/L, federal limit 0.08 mg/L (1.1 times the limit)
 220 Apr 1, 2023 Resolved No
Total Trihalomethanes (TTHMs)
Contaminant limit exceeded
Measured 0.095 mg/L, federal limit 0.08 mg/L (1.2 times the limit)
 220 Jan 1, 2023 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 Oct 1, 2022 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 Jul 1, 2022 Resolved No
Total Trihalomethanes (TTHMs)
Contaminant limit exceeded
Measured 0.102 mg/L, federal limit 0.08 mg/L (1.3 times the limit)
 220 Apr 1, 2022 Resolved No
Total Trihalomethanes (TTHMs)
Contaminant limit exceeded
Measured 0.099 mg/L, federal limit 0.08 mg/L (1.2 times the limit)
 220 Jan 1, 2022 Resolved No
Total Trihalomethanes (TTHMs)
Contaminant limit exceeded
Measured 0.09 mg/L, federal limit 0.08 mg/L (1.1 times the limit)
 220 Oct 1, 2021 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 Apr 1, 2020 Resolved No

Monitoring and reporting issues

Since October 2016

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

Issue Start date Status
LEAD AND COPPER RULE REVISIONS
RPT
 Oct 17, 2024 Resolved
Haloacetic Acids (HAA5)
Monitoring and reporting
 Jan 1, 2020 Resolved
Total Trihalomethanes (TTHMs)
Monitoring and reporting
 Jan 1, 2020 Resolved

Full record since 1991

EPA's records for Texoma Hills go back to 1991. Before October 19, 2016 they list 2 health-based violations (2 resolved) and 37 monitoring or reporting violations.

Violations that began in Health-based Monitoring and reporting
1990s 1 11
2000s 0 16
2010 to October 18, 2016 1 10
2020s 12 3

Most recent health-based violation before October 19, 2016: Lead and Copper Rule, began July 2012, Resolved.

Show all 2 health-based violations before October 19, 2016
Contaminant Start date Status
Lead and Copper Rule
Treatment technique failure
 Jul 1, 2012 Resolved
Total Coliform
Contaminant limit exceeded
 Sep 1, 1996 Resolved

Enforcement actions

Oklahoma regulators took 16 formal enforcement actions against Texoma Hills between 1991 and 2025. The most recent was a compliance order (no penalty) in April 2025.

Date By Action Violations covered
Apr 3, 2025 Oklahoma Compliance order (no penalty) 1 violation (1 health-based): Total Trihalomethanes (TTHMs)
Jan 7, 2025 Oklahoma Compliance order (no penalty) 1 violation (1 health-based): Total Trihalomethanes (TTHMs)
Oct 9, 2024 Oklahoma Compliance order (no penalty) 1 violation (1 health-based): Total Trihalomethanes (TTHMs)
Sep 21, 2023 Oklahoma Compliance order with a penalty 7 violations (7 health-based): Total Trihalomethanes (TTHMs)
Jul 12, 2023 Oklahoma Compliance order (no penalty) 1 violation (1 health-based): Total Trihalomethanes (TTHMs)
Apr 12, 2023 Oklahoma Compliance order (no penalty) 1 violation (1 health-based): Total Trihalomethanes (TTHMs)
Jan 3, 2023 Oklahoma Compliance order (no penalty) 2 violations (2 health-based): Total Trihalomethanes (TTHMs)
Jun 29, 2022 Oklahoma Compliance order (no penalty) 1 violation (1 health-based): Total Trihalomethanes (TTHMs)
Apr 20, 2022 Oklahoma Compliance order (no penalty) 1 violation (1 health-based): Total Trihalomethanes (TTHMs)
Feb 1, 2022 Oklahoma Compliance order (no penalty) 1 violation (1 health-based): Total Trihalomethanes (TTHMs)
Aug 7, 2020 Oklahoma Compliance order (no penalty) 1 violation (1 health-based): Total Trihalomethanes (TTHMs)
Feb 23, 2012 Oklahoma Compliance order with a penalty 1 violation: Lead and Copper Rule
Apr 27, 2011 Oklahoma Compliance order with a penalty 4 violations: Consumer Confidence Rule
Apr 4, 2011 Oklahoma Compliance order with a penalty 4 violations: Lead and Copper Rule
Oct 19, 1995 Oklahoma Compliance order (no penalty) 1 violation: Total Coliform
Jul 18, 1991 Oklahoma Compliance order with a penalty 1 violation: Total Coliform

What the violations mean

Total Trihalomethanes (TTHMs)

11 incidents

Disinfection byproduct levels exceeded the federal limit

Long-term TTHM exposure may increase bladder cancer risk

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

Texoma Hills buys its water from Marshall County Rural Water District #2. It lists no wells or intakes of its own.

Buys water from

Annual water quality report

Texoma Hills 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 Texoma Hills 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 Oklahoma.

Certified drinking water labs by state EPA guidance for private wells