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

OSHA Inspection: US ANTIMONY CORP

Planned inspection · Health discipline

On , OSHA opened a planned health inspection of US ANTIMONY CORP in 47 COX GULCH, THOMPSON FALLS, MT 59873 (NAICS 331419). OSHA activity number 343204699.

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employer broke any rule; any findings appear as the citations listed below, and citations can be contested, reduced, or withdrawn.

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Establishment
US ANTIMONY CORP
Site address
47 COX GULCH
City
THOMPSON FALLS
State
MT
ZIP
59873
Mailing
P.O. BOX 643, THOMPSON FALLS, MT 59873
Inspection type
Planned (H)
Scope
Complete (A)
Discipline
Health
Advance notice
No
Union status
B
Opened
Closing conference
Case closed
Last modified
Data loaded
NAICS code
331419
Employees
23
Ownership type
A

5 citations on file for this inspection.

1910.1000 A02

Serious Gravity 5 3 instances 23 exposed
Issued
Aug 8, 2018
Abate by
Jul 31, 2019
Penalty
Initial $3,769 · Current $2,261 Reduced
29 CFR 1910.1000(a)(2): Employee(s) were exposed to an airborne concentration of Antimony listed in Table Z-1 in excess of the 8 hour Time Weighted Average concentration of 0.50 mg/m3:   a) US Antimony: On June 5, 2018, and at times prior, employees processing ore were exposed to airborne Antimony at a concentration of 1.3224 mg/m3 expressed as an 8-hour time weighted average. The exposures are approximately 3 times the daily Permissible Exposure Limit (PEL) of 0.50 mg/m3 based on a 387 minutes sampling period; exposure calculations included a zero-increment for the 93 minutes not sampled.   b) US Antimony: On June 5, 2018, and at times prior, employees processing ore were exposed to airborne Antimony at a concentration of 0.5989 mg/m3 expressed as an 8-hour time weighted average. The exposures are approximately 1.2 times the daily Permissible Exposure Limit (PEL) of 0.50 mg/m3 based on a 373 minutes sampling period; exposure calculations included a zero-increment for the 107 minutes not sampled.   c) US Antimony: On June 5, 2018, and at times prior, employees processing ore were exposed to airborne Antimony at a concentration of 1.12761 mg/m3 expressed as an 8-hour time weighted average. The exposures are approximately 3 times the daily Permissible Exposure Limit (PEL) of 0.50 mg/m3 based on a 368 minutes sampling period; exposure calculations included a zero-increment for the 112 minutes not sampled.
Recent events (2)
  • — I (S) $2261.4
  • — Z (S) $3769

1910.1000 E

Serious Gravity 5 3 instances 23 exposed
Issued
Aug 8, 2018
Abate by
Jul 31, 2019
Penalty
Initial $0 · Current $0
29 CFR 1910.1000(e): Feasible administrative or engineering controls were not determined and implemented to achieve compliance with the limits prescribed in 29 CFR 1910.1000(a) through (d):  a) US Antimony: On June 5, 2018, and at times prior, employees processing ore were exposed to airborne Antimony at a concentration of 1.3224 mg/m3 expressed as an 8-hour time weighted average. The exposures are approximately 3 times the daily Permissible Exposure Limit (PEL) of 0.50 mg/m3 based on a 387 minutes sampling period; exposure calculations included a zero-increment for the 93 minutes not sampled.   b) US Antimony: On June 5, 2018, and at times prior, employees processing ore were exposed to airborne Antimony at a concentration of 0.5989 mg/m3 expressed as an 8-hour time weighted average. The exposures are approximately 1.2 times the daily Permissible Exposure Limit (PEL) of 0.50 mg/m3 based on a 373 minutes sampling period; exposure calculations included a zero-increment for the 107 minutes not sampled.   c) US Antimony: On June 5, 2018, and at times prior, employees processing ore were exposed to airborne Antimony at a concentration of 1.12761 mg/m3 expressed as an 8-hour time weighted average. The exposures are approximately 3 times the daily Permissible Exposure Limit (PEL) of 0.50 mg/m3 based on a 368 minutes sampling period; exposure calculations included a zero-increment for the 112 minutes not sampled.
Recent events (2)
  • — I (S) $0
  • — Z (S) $0

1910.134 E06 I A

Other-than-serious 1 instance 15 exposed
Issued
Aug 8, 2018
Penalty
Initial $0 · Current $0
29 CFR 1910.134(e)(6)(i)(A): The employer did not obtain from physician or other licensed health care professional (PLHCP) information on any limitations on respirator use related to the medical condition of the employee, or relating to the workplace conditions in which the respirator will be used, including whether or not the employee is medically able to use the respirator:  a) US Antimony: On June 5, 2018, and at times prior, the employer was not obtaining information from the licensed health care professional (PLHCP) on each employees ability to wear a respirator.
Recent events (2)
  • — I (O) $0
  • — Z (O) $0

1910.178 Q07

Other-than-serious 1 instance 15 exposed
Issued
Aug 8, 2018
Penalty
Initial $0 · Current $0
29 CFR 1910.178(q)(7): Powered industrial truck(s) which were used on a round-the-clock basis were not examined for defects after each shift:  a) US Antimony: On June 5, 2018, and at times prior, employees are not performing pre-operational checks on the forklifts prior to operation.
Recent events (2)
  • — I (O) $0
  • — Z (O) $0

1910.305 J01 I

Other-than-serious 1 instance 23 exposed
Issued
Aug 8, 2018
Penalty
Initial $0 · Current $0
29 CFR 1910.305(j)(1)(i): Fixtures, lampholders, lamps, rosettes, and receptacles located within 8 feet of the floor had live parts exposed to employee contact:  a) US Antimony: On June 5, 2018, and at times prior, employees were exposed to a light fixture with live parts not being covered.
Recent events (2)
  • — I (O) $0
  • — Z (O) $0

View US Antimony Corp'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 343204699.

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