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Public water system record

Pittsburg Co. RWD #6 (Alderson)

Serves Krebs and Alderson, Pittsburg County, OK · 300 people served

Federal records show 10 health-based violations and 3 monitoring/reporting issues for Pittsburg Co. RWD #6 (Alderson) in the last ten years. The most serious issue in this window was a Haloacetic Acids (HAA5) violation that EPA lists as archived, not resolved.

  • OK3006109
  • MCALESTER
  • OK
  • 300 served

System profile

Source water Purchased surface water
ZIP 74501
EPA system ID OK3006109

Verify this system on EPA ECHO →

Health-based violations, last 10 years
10
Resolved
9
Unresolved
0
Archived by EPA
1
Any acute record
No
Monitoring issues, last 10 years
3

Key facts

  • Pittsburg Co. RWD #6 (Alderson) buys its water from McAlester PWA.
  • Highest measured level in the last 10 years: Haloacetic Acids (HAA5), 0.072 mg/L, federal limit 0.06 mg/L (1.2 times the limit), 2017.
  • Most recent formal enforcement: compliance order (no penalty) by Oklahoma, October 2025.
  • Record on file since 1992, with 3 health-based violations before October 19, 2016.
  • Lead pipe inventory: 0 lead and 0 unknown out of 439 service lines.

Check whether Pittsburg Co. RWD #6 (Alderson) serves your address

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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
Haloacetic Acids (HAA5)
Contaminant limit exceeded
Measured 0.062 mg/L, federal limit 0.06 mg/L (at or just above 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
LEAD AND COPPER RULE REVISIONS
Treatment technique failure
 350 Oct 17, 2024 Resolved 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 Apr 1, 2023 Resolved No
Total Trihalomethanes (TTHMs)
Contaminant limit exceeded
Measured 0.093 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 0.091 mg/L, federal limit 0.08 mg/L (1.1 times the limit)
 220 Jan 1, 2022 Resolved No
Total Trihalomethanes (TTHMs)
Contaminant limit exceeded
Measured 0.089 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 0.087 mg/L, federal limit 0.08 mg/L (1.1 times the limit)
 220 Jul 1, 2021 Resolved No
Haloacetic Acids (HAA5)
Contaminant limit exceeded
Measured 0.068 mg/L, federal limit 0.06 mg/L (1.1 times the limit)
 220 Apr 1, 2017 Resolved No
Haloacetic Acids (HAA5)
Contaminant limit exceeded
Measured 0.072 mg/L, federal limit 0.06 mg/L (1.2 times the limit)
 220 Jan 1, 2017 Resolved No
Haloacetic Acids (HAA5)
Contaminant limit exceeded
Measured 0.065 mg/L, federal limit 0.06 mg/L (1.1 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
Haloacetic Acids (HAA5)
Monitoring and reporting
 Sep 29, 2025 Resolved
LEAD AND COPPER RULE REVISIONS
RPT
 Oct 17, 2024 Resolved
Total Trihalomethanes (TTHMs)
Monitoring and reporting
 Dec 30, 2020 Resolved

Full record since 1992

EPA's records for Pittsburg Co. RWD #6 (Alderson) go back to 1992. Before October 19, 2016 they list 3 health-based violations (3 resolved) and 13 monitoring or reporting violations.

Violations that began in Health-based Monitoring and reporting
1990s 0 2
2000s 0 6
2010 to October 18, 2016 3 5
October 19, 2016 to 2019 2 0
2020s 7 3

Most recent health-based violation before October 19, 2016: Haloacetic Acids (HAA5), began October 2016, Resolved.

Show all 3 health-based violations before October 19, 2016
Contaminant Start date Status
Haloacetic Acids (HAA5)
Contaminant limit exceeded
Measured 0.065 mg/L, federal limit 0.06 mg/L (1.1 times the limit)
 Oct 1, 2016 Resolved
Haloacetic Acids (HAA5)
Contaminant limit exceeded
Measured 0.067 mg/L, federal limit 0.06 mg/L (1.1 times the limit)
 Jul 1, 2016 Resolved
Haloacetic Acids (HAA5)
Contaminant limit exceeded
Measured 0.062 mg/L, federal limit 0.06 mg/L (at or just above the limit)
 Apr 1, 2016 Resolved

Enforcement actions

Oklahoma regulators took 8 formal enforcement actions against Pittsburg Co. RWD #6 (Alderson) and issued 3 boil water orders between 1993 and 2025. The most recent was a compliance order (no penalty) in October 2025.

Date By Action Violations covered
Oct 20, 2025 Oklahoma Compliance order (no penalty) 1 violation (1 health-based): Haloacetic Acids (HAA5)
Aug 21, 2023 Oklahoma Compliance order (no penalty) 1 violation (1 health-based): Total Trihalomethanes (TTHMs)
Aug 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 18, 2022 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)
Jul 28, 2017 Oklahoma Compliance order with a penalty 1 violation (1 health-based): Haloacetic Acids (HAA5)
May 18, 2017 Oklahoma Compliance order with a penalty 4 violations (4 health-based): Haloacetic Acids (HAA5)
Apr 17, 1995 Oklahoma Boil water order 1 violation
Apr 15, 1994 Oklahoma Boil water order 1 violation
Sep 22, 1993 Oklahoma Boil water order 1 violation

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

Haloacetic Acids (HAA5)

4 incidents

Haloacetic acid byproducts exceeded the federal limit

Long-term exposure to HAAs may increase 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

Pittsburg Co. RWD #6 (Alderson) buys its water from McAlester PWA. It lists no wells or intakes of its own.

Buys water from

Annual water quality report

Pittsburg Co. RWD #6 (Alderson) 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 #6 (Alderson) 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