Safety Incidents OSHA Severe Injury Reports · 2015–2025
5,197,549Inspections Most recent open 2026-08-27 Last loaded 2026-08-31

OSHA Inspection: HALVORSON-MASON

Planned inspection · Safety discipline

On , OSHA opened a planned safety inspection of HALVORSON-MASON in LIBBY DAM POWERHOUSE, Libby, MT 59923 (NAICS 000000). OSHA activity number 217748078.

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employer broke any rule; any findings appear as the citations listed below, and citations can be contested, reduced, or withdrawn.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
HALVORSON-MASON
Site address
LIBBY DAM POWERHOUSE
City
Libby
State
MT
ZIP
59923
Inspection type
Planned (H)
Scope
Complete (A)
Discipline
Safety
Union status
Union (A)
Opened
Closing conference
Case closed
Data loaded
NAICS code
000000
SIC code (legacy)
1623
Employees
137
Industry flags
Construction safety.

1 citation on file for this inspection.

1926.500 E01 IV

Other-than-serious 4 instances
Issued
Sep 15, 1975
Abate by
Oct 28, 1975
Penalty
Initial $35 · Current $35

View Halvorson-Mason's full OSHA safety record →

This record is reproduced from the U.S. Department of Labor Open Data API (OSHA inspection dataset). OSHA publishes its own view of this case as inspection number 217748078.

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