Public water system record

Pittsburg Co. RWD #20 (Carlton Landing)

On record as serving Pittsburg County, OK · Serves 38 people

Federal records show 11 health-based violations and 8 monitoring/reporting issues for Pittsburg Co. RWD #20 (Carlton Landing) 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.

  • OK3006139
  • CARLTON LANDING
  • OK
  • 38 served

System profile

Source water Purchased surface water
ZIP 74432
EPA system ID OK3006139

Verify this system on EPA ECHO →

Health-based violations, last 10 years
11
Resolved
2
Unresolved
0
Archived by EPA
9
Any acute record
No
Monitoring issues, last 10 years
8

Key facts

  • Pittsburg Co. RWD #20 (Carlton Landing) buys its water from Longtown RW&SD #1 (Pittsburg Co.).
  • Highest measured level in the last 10 years: Total Trihalomethanes (TTHMs), 0.096 mg/L, federal limit 0.08 mg/L (1.2 times the limit), 2024.
  • Most recent formal enforcement: compliance order with a penalty by Oklahoma, December 2024.
  • Record on file since 2013, with 0 health-based violations before October 19, 2016.
  • Lead pipe inventory: 0 lead and 0 unknown out of 365 service lines.

Check whether Pittsburg Co. RWD #20 (Carlton Landing) serves your address

Address suggestions by Mapbox

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 0.092 mg/L, federal limit 0.08 mg/L (1.2 times the limit)
220 Oct 1, 2025 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 0.086 mg/L, federal limit 0.08 mg/L (1.1 times the limit)
220 Jul 1, 2025 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 0.085 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
Total Trihalomethanes (TTHMs)
Contaminant limit exceeded
Measured 0.093 mg/L, federal limit 0.08 mg/L (1.2 times 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 0.096 mg/L, federal limit 0.08 mg/L (1.2 times 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 0.092 mg/L, federal limit 0.08 mg/L (1.2 times the limit)
220 Apr 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 0.088 mg/L, federal limit 0.08 mg/L (1.1 times the limit)
220 Jan 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 0.086 mg/L, federal limit 0.08 mg/L (1.1 times the limit)
220 Oct 1, 2023 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 0.081 mg/L, federal limit 0.08 mg/L (at or just above the limit)
220 Jul 1, 2023 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 0.081 mg/L, federal limit 0.08 mg/L (at or just above the limit)
220 Jul 1, 2021 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, 2021 Resolved No

Monitoring and reporting issues

Since October 2016

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

Issue Start date Status
Total Trihalomethanes (TTHMs)
Monitoring and reporting
Apr 1, 2025 Resolved
Total Trihalomethanes (TTHMs)
Monitoring and reporting
Dec 30, 2024 Resolved
Lead and Copper Rule
Monitoring and reporting
Oct 1, 2022 Active
Total Trihalomethanes (TTHMs)
Monitoring and reporting
Apr 1, 2022 Resolved
Total Trihalomethanes (TTHMs)
Monitoring and reporting
Dec 30, 2021 Resolved
Total Trihalomethanes (TTHMs)
Monitoring and reporting
Apr 1, 2021 Resolved
Revised Total Coliform Rule
Monitoring violation
Apr 1, 2018 Resolved
Chlorine
Monitoring and reporting
Apr 1, 2018 Resolved

Full record since 2013

EPA's records for Pittsburg Co. RWD #20 (Carlton Landing) go back to 2013. Before October 19, 2016 they list no health-based violations and 2 monitoring or reporting violations.

Violations that began in Health-based Monitoring and reporting
2010 to October 18, 2016 0 2
October 19, 2016 to 2019 0 2
2020s 11 6

Enforcement actions

Oklahoma regulators took 8 formal enforcement actions against Pittsburg Co. RWD #20 (Carlton Landing) between 2021 and 2024. The most recent was a compliance order with a penalty in December 2024.

Date By Action Violations covered
Dec 4, 2024 Oklahoma Compliance order with a penalty 9 violations (9 health-based): Total Trihalomethanes (TTHMs)
Oct 9, 2024 Oklahoma Compliance order (no penalty) 1 violation (1 health-based): Total Trihalomethanes (TTHMs)
Jul 11, 2024 Oklahoma Compliance order (no penalty) 1 violation (1 health-based): Total Trihalomethanes (TTHMs)
Apr 5, 2024 Oklahoma Compliance order (no penalty) 1 violation (1 health-based): Total Trihalomethanes (TTHMs)
Feb 8, 2024 Oklahoma Compliance order (no penalty) 1 violation (1 health-based): Total Trihalomethanes (TTHMs)
Oct 13, 2023 Oklahoma Compliance order (no penalty) 1 violation (1 health-based): Total Trihalomethanes (TTHMs)
Nov 5, 2021 Oklahoma Compliance order (no penalty) 1 violation (1 health-based): Total Trihalomethanes (TTHMs)
Aug 25, 2021 Oklahoma Compliance order (no penalty) 1 violation (1 health-based): Total Trihalomethanes (TTHMs)

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

Where the water comes from

Pittsburg Co. RWD #20 (Carlton Landing) buys its water from Longtown RW&SD #1 (Pittsburg Co.). It lists no wells or intakes of its own.

Buys water from

Annual water quality report

Pittsburg Co. RWD #20 (Carlton Landing) 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 Pittsburg Co. RWD #20 (Carlton Landing) 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.