Public water system record

US Army Ammunition Plant

Serves an area of Pittsburg County, OK · 1,872 people served

Federal records show 3 health-based violations and 3 monitoring/reporting issues for US Army Ammunition Plant in the last ten years. The most serious issue in this window was a resolved Total Trihalomethanes (TTHMs) violation.

  • OK1020605
  • MCALESTER
  • OK
  • 1,872 served

System profile

Source water Surface water
ZIP 74501
EPA system ID OK1020605

Verify this system on EPA ECHO →

Health-based violations, last 10 years
3
Resolved
3
Unresolved
0
Any acute record
No
Monitoring issues, last 10 years
3

Key facts

  • US Army Ammunition Plant draws water from 1 surface water intake.
  • Highest measured level in the last 10 years: Total Trihalomethanes (TTHMs), 0.087 mg/L, federal limit 0.08 mg/L (1.1 times the limit), 2022.
  • Most recent formal enforcement: compliance order (no penalty) by Oklahoma, August 2022.
  • Record on file since 1993, with 12 health-based violations before October 19, 2016.
  • Lead pipe inventory: 0 lead and 149 unknown out of 298 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 0.086 mg/L, federal limit 0.08 mg/L (1.1 times the limit)
220 Apr 1, 2022 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 Jan 1, 2022 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 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
Atrazine
Monitoring and reporting
Oct 1, 2024 Resolved
Glyphosate
Monitoring and reporting
Oct 1, 2024 Resolved
Revised Total Coliform Rule
Monitoring violation
Jun 1, 2024 Resolved

Full record since 1993

EPA's records for US Army Ammunition Plant go back to 1993. Before October 19, 2016 they list 12 health-based violations (10 resolved, 2 archived by EPA without a recorded fix) and 9 monitoring or reporting violations.

Violations that began in Health-based Monitoring and reporting
1990s 4 3
2000s 8 4
2010 to October 18, 2016 0 2
2020s 3 3

Most recent health-based violation before October 19, 2016: Total Trihalomethanes (TTHMs), began April 2006, Resolved.

Show all 12 health-based violations before October 19, 2016
Contaminant Start date Status
Total Trihalomethanes (TTHMs)
Contaminant limit exceeded
Measured 0.087 mg/L, federal limit 0.08 mg/L (1.1 times the limit)
Apr 1, 2006 Resolved
Total Trihalomethanes (TTHMs)
Contaminant limit exceeded
Measured 0.138 mg/L, federal limit 0.08 mg/L (1.7 times the limit)
Jan 1, 2006 Resolved
Total Trihalomethanes (TTHMs)
Contaminant limit exceeded
Oct 1, 2005 Resolved
Total Trihalomethanes (TTHMs)
Contaminant limit exceeded
Jul 1, 2005 Resolved
Total Trihalomethanes (TTHMs)
Contaminant limit exceeded
Apr 1, 2005 Resolved
Total Trihalomethanes (TTHMs)
Contaminant limit exceeded
Jan 1, 2005 Resolved
Total Trihalomethanes (TTHMs)
Contaminant limit exceeded
Oct 1, 2004 Resolved
Total Trihalomethanes (TTHMs)
Contaminant limit exceeded
Jul 1, 2004 Resolved
Surface Water Treatment Rule
Treatment technique failure
Jun 1, 1999 Archived
Surface Water Treatment Rule
Treatment technique failure
Mar 1, 1995 Resolved
Surface Water Treatment Rule
Treatment technique failure
Jun 1, 1994 Resolved
Surface Water Treatment Rule
Treatment technique failure
Dec 1, 1993 Archived

Enforcement actions

Oklahoma regulators took 9 formal enforcement actions against US Army Ammunition Plant between 2005 and 2022. The most recent was a compliance order (no penalty) in August 2022.

Date By Action Violations covered
Aug 29, 2022 Oklahoma Compliance order (no penalty) 2 violations (2 health-based): Total Trihalomethanes (TTHMs)
Feb 23, 2022 Oklahoma Compliance order (no penalty) 1 violation (1 health-based): Total Trihalomethanes (TTHMs)
Sep 22, 2006 Oklahoma Compliance order with a penalty 1 violation (1 health-based): Total Trihalomethanes (TTHMs)
Aug 8, 2006 Oklahoma Compliance order with a penalty 1 violation (1 health-based): Total Trihalomethanes (TTHMs)
Apr 12, 2006 Oklahoma Compliance order with a penalty 1 violation (1 health-based): Total Trihalomethanes (TTHMs)
Jan 3, 2006 Oklahoma Compliance order with a penalty 2 violations (2 health-based): Total Trihalomethanes (TTHMs)
Sep 7, 2005 Oklahoma Compliance order with a penalty 2 violations (1 health-based): Total Trihalomethanes (TTHMs), CARBON, TOTAL
Apr 19, 2005 Oklahoma Compliance order with a penalty 1 violation (1 health-based): Total Trihalomethanes (TTHMs)
Jan 11, 2005 Oklahoma Compliance order with a penalty 1 violation (1 health-based): Total Trihalomethanes (TTHMs)

What the violations mean

Total Trihalomethanes (TTHMs)

3 incidents

Disinfection byproduct levels exceeded the federal limit

Long-term TTHM exposure may increase bladder cancer risk

Where the water comes from

US Army Ammunition Plant draws water from 1 surface water intake. 2 other community water systems buy water from US Army Ammunition Plant.

Community systems that buy water from it

Annual water quality report

US Army Ammunition Plant 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 Oklahoma.