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 MANUFACTURING LLC

Complaint inspection · Health discipline

On , OSHA opened a complaint health inspection of MAMMOTH MANUFACTURING LLC in 1150 W CUSTER PLACE, DENVER, CO 80223 (NAICS 325411). OSHA activity number 348262791.

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employer broke any rule; any findings appear as the citations listed below, and citations can be contested, reduced, or withdrawn.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
1150 W CUSTER PLACE
City
DENVER
State
CO
ZIP
80223
Mailing
1150 W CUSTER PL., DENVER, CO 80223
Inspection type
Complaint (B)
Scope
Partial (B)
Discipline
Health
Advance notice
No
Union status
B
Opened
Closing conference
Last modified
Data loaded
NAICS code
325411
Employees
16
Ownership type
A

3 citations on file for this inspection.

1910.303 B01

Serious Gravity 10 1 instance 3 exposed
Issued
Nov 12, 2025
Abate by
Dec 2, 2025
Penalty
Initial $4,965 · Current $3,467 Reduced
29 CFR  1910.303(b)(1): Electrical equipment was not free from recognized hazards that were likely to cause death or serious physical harm to employees:  a) Hall: On or about May 19, 2025, employees were exposed to electrical shock and fire hazards where an electrical panel did not have a faceplate.
Recent events (2)
  • — I (S) $3466.67
  • — Z (S) $4965

1910.303 B06

Serious Gravity 10 1 instance 3 exposed
Issued
Nov 12, 2025
Abate by
Dec 2, 2025
Penalty
Initial $4,965 · Current $3,467 Reduced
29 CFR  1910.303(b)(6): Conductors or equipment were located in damp or wet locations; where exposed to gases, fumes, vapors, liquids, or other agents that had a deteriorating effect on the conductors or equipment; or where exposed to excessive temperatures and were not identified for use in the operating environment:  a) Main Production Area: On or about May 19, 2025, employees were exposed to electrical shock where electrical receptacles used to power a sump pump in a wet location were not GFCI equipped.
Recent events (2)
  • — I (S) $3466.67
  • — Z (S) $4965

1910.305 G01 IV A

Serious Gravity 10 1 instance 3 exposed
Issued
Nov 12, 2025
Abate by
Dec 2, 2025
Penalty
Initial $4,965 · Current $3,467 Reduced
29 CFR  1910.305(g)(1)(iv)(A): Flexible cords and/or cables were used as a substitute for the fixed wiring of a structure:  a) Main Production Area: On or about May 19, 2025, employees were exposed to electrical shock and fire hazards where flexible cord was wired from a 280 Volt electrical panel, across the ceiling, through a hole in the wall, and to air compressor power source.
Recent events (2)
  • — I (S) $3466.66
  • — Z (S) $4965

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 348262791.

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