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

OSHA Inspection: MAMMOTH CONSTRUCTION CO.

Planned inspection · Safety discipline

On , OSHA opened a planned safety inspection of MAMMOTH CONSTRUCTION CO. in GUAM MAIN FACILITY POST OFFICE, BARRIGADA, GU 96913 (NAICS 236220). OSHA activity number 106393440.

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employer broke any rule; any findings appear as the citations listed below, and citations can be contested, reduced, or withdrawn.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
GUAM MAIN FACILITY POST OFFICE
City
BARRIGADA
State
GU
ZIP
96913
Mailing
P.O. BOX 23635, BARRIGADA, GU 96921
Inspection type
Planned (H)
Scope
Complete (A)
Discipline
Safety
Advance notice
No
Union status
N
Opened
Closing conference
Case closed
Last modified
Data loaded
NAICS code
236220
SIC code (legacy)
1542
Employees
2
Ownership type
A

2 citations on file for this inspection.

1926.451 E01

Serious Gravity 05 1 instance 2 exposed
Issued
Jun 10, 2004
Abate by
Jun 15, 2004
Penalty
Initial $525 · Current $525

1926.451 G01 VII

Serious Gravity 05 1 instance 2 exposed
Issued
Jun 10, 2004
Abate by
Jun 15, 2004
Penalty
Initial $525 · Current $525

View Mammoth Construction CO.'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 106393440.

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