Safety Incidents OSHA Severe Injury Reports · 2015–2025
5,189,992Inspections Most recent open 2026-07-18 Last loaded 2026-07-22

OSHA Inspection: AMERICAN THERMAL SYSTEMS, INC.

Referral inspection · Safety discipline

On , OSHA opened a referral safety inspection of AMERICAN THERMAL SYSTEMS, INC. in 8201 E HWY 51, BROKEN ARROW, OK 74014 (NAICS 541310). OSHA activity number 345179352.

What this inspection record means

OSHA opens inspections for many reasons — routine scheduling under a national or local emphasis program, an employee complaint or referral, or a follow-up after a reported injury. Opening or conducting an inspection is not itself an allegation or a finding that this employer broke any rule; any findings appear as the citations listed below, and citations can be contested, reduced, or withdrawn.

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Site address
8201 E HWY 51
City
BROKEN ARROW
State
OK
ZIP
74014
Mailing
112 COMMERCIAL CIRCLE, CONROE, TX 77304
Inspection type
Referral (C)
Scope
Partial (B)
Discipline
Safety
Advance notice
No
Union status
B
Opened
Closing conference
Case closed
Last modified
Data loaded
NAICS code
541310
Employees
30
Ownership type
A

7 citations on file for this inspection.

1910.134 D01 I

Deleted Serious Gravity 10 1 instance 4 exposed
Issued
Aug 5, 2021
Abate by
Aug 19, 2021
Penalty
Initial $9,557 · Current $0 Reduced

Hazardous substances 0170

29 CFR  1910.134(d)(1)(i): The employer did not select appropriate respirators and cartridges based on the respiratory hazard(s) to which the worker(s) were exposed:   On or about February 13th, 2021, and at times prior thereto, employees were provided with 3D N95 and half mask respirators utilizing organic vapor cartridges while working in ammonia concentrated atmosphere. Employees were exposed to the hazards associated with ammonia.
Recent events (3)
  • — F (S) $0
  • — C (S) $9557
  • — Z (S) $9557

1910.134 D01 III

Deleted Serious Gravity 10 1 instance 4 exposed
Issued
Aug 5, 2021
Abate by
Aug 26, 2021
Penalty
Initial $0 · Current $0

Hazardous substances 0170

29 CFR  1910.134(d)(1)(iii): The employer did not identify and evaluate the respiratory hazard(s) in the workplace; including a reasonable estimate of employee exposures to respiratory hazards and identification of the contaminant's chemical state and physical form:  On or about February 13th, 2021, and at times prior thereto, an evaluation of respiratory hazards at the job-site was not conducted and did not consider ammonia as a hazard while working in a Process Safety Management covered facility. Employees were exposed to the hazards associated with ammonia.
Recent events (3)
  • — F (S) $0
  • — C (S) $0
  • — Z (S) $0

1910.134 E01

Serious Gravity 10 1 instance 4 exposed
Issued
Aug 5, 2021
Abate by
Aug 26, 2021
Penalty
Initial $9,557 · Current $6,000 Reduced

Hazardous substances 0170

29 CFR  1910.134(e)(1): The employer shall provide a medical evaluation to determine the employee's ability to use a respirator, before the employee is fit tested or required to use the respirator in the workplace. The employer may discontinue an employee's medical evaluations when the employee is no longer required to use a respirator.  On or about February 13th, 2021, and at times prior thereto, medical evaluations were not given to employees prior to the issue of respirators to be used on the job-site. Employees are exposed to the hazards associated with respirator use and ammonia.
Recent events (3)
  • — F (S) $6000
  • — C (S) $9557
  • — Z (S) $9557

1910.134 L01

Deleted Serious Gravity 1 1 instance 4 exposed
Issued
Aug 5, 2021
Abate by
Sep 17, 2021
Penalty
Initial $4,096 · Current $0 Reduced

Hazardous substances 0170

29 CFR 1910.134(l)(1): The employer shall conduct evaluations of the workplace as necessary to ensure that the provisions of the current written program are being effectively implemented and that it continues to be effective.  On or about February 13th, 2021, and at times prior thereto, provisions were not taken to ensure the written respiratory protection program was implemented prior to the start of the project. Employees are exposed to the hazards associated with respirator use and ammonia.
Recent events (3)
  • — F (S) $0
  • — C (S) $4096
  • — Z (S) $4096

1910.134 F02

Other-than-serious Gravity 10 1 instance 4 exposed
Issued
Aug 5, 2021
Abate by
Sep 17, 2021
Penalty
Initial $9,557 · Current $6,000 Reduced

Hazardous substances 0170

29 CFR 1910.134(f)(2): Employee(s) using tight-fitting facepiece respirators were not fit tested prior to initial use of the respirator:  On or about February 13th, 2021, and at times prior thereto, employees were not fit tested prior to being issued respirators for use on the job-site. Employees were exposed to the hazards associated with ammonia.
Recent events (3)
  • — F (O) $6000
  • — C (S) $9557
  • — Z (S) $9557

1910.134 G01 I A

Other-than-serious Gravity 10 1 instance 4 exposed
Issued
Aug 5, 2021
Abate by
Aug 26, 2021
Penalty
Initial $9,557 · Current $0 Reduced

Hazardous substances 0170

29 CFR 1910.134(g)(1)(i)(A): Facial hair that comes between the sealing surface of the facepiece and the face or that interferes with valve function;  On or about February 13th, 2021, and at times prior thereto, employer did not ensure employees required to wear respirators were clean shaven when issued a respirator for use. Employees are exposed to the hazards associated with respirator use and ammonia.
Recent events (3)
  • — F (O) $0
  • — C (S) $9557
  • — Z (S) $9557

1904.7 B06

Deleted Other-than-serious 1 instance 1 exposed
Issued
Aug 5, 2021
Abate by
Aug 12, 2021
Penalty
Initial $1,366 · Current $0 Reduced

Hazardous substances 0170

29 CFR  1904.7(b)(6): Employer must record a work-related injury or illness if the worker becomes unconscious, regardless of the length of time the employee remains unconscious.  On or about February 13th, 2021, and at times prior thereto, the employer improperly classified an employee injury and did not note the employee loss of consciousness on the OSHA Form 300.
Recent events (3)
  • — F (O) $0
  • — C (O) $1366
  • — Z (O) $1366

View American Thermal Systems, INC.'s full OSHA safety record →

This record is reproduced from the U.S. Department of Labor Open Data API (OSHA inspection dataset). The original IMIS detail view is available at OSHA's Establishment Search for activity number 345179352.

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