Safety Incidents OSHA Severe Injury Reports · 2015–2025
5,189,645Inspections Most recent open 2026-07-16 Last loaded 2026-07-20

OSHA Inspection: MARMON GROUP LLC DBA MARMON KEYSTONE

Planned inspection · Safety discipline

On , OSHA opened a planned safety inspection of MARMON GROUP LLC DBA MARMON KEYSTONE in 1345 E LEXINGTON AVE, POMONA, CA 91769 (NAICS 332996). OSHA activity number 312310089.

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Site address
1345 E LEXINGTON AVE
City
POMONA
State
CA
ZIP
91769
Inspection type
Planned (H)
Scope
Partial (B)
Discipline
Safety
Advance notice
No
Union status
N
Opened
Closing conference
Case closed
Last modified
Data loaded
NAICS code
332996
SIC code (legacy)
3498
Employees
45
Ownership type
A
Industry flags
Manufacturing safety.

9 citations on file for this inspection.

3664 A

Other-than-serious 1 instance 1 exposed
Issued
Abate by
Penalty
Initial $375.00 · Current $300.00 Reduced
Recent events (2)
  • — F (O) $300.00
  • — Z (O) $375.00

3203 A

Other-than-serious 1 instance 17 exposed
Issued
Abate by
Penalty
Initial $185.00 · Current $150.00 Reduced
Recent events (2)
  • — F (O) $150.00
  • — Z (O) $185.00

3328 D

Other-than-serious 1 instance 1 exposed
Issued
Abate by
Penalty
Initial $280.00 · Current $225.00 Reduced
Recent events (2)
  • — F (O) $225.00
  • — Z (O) $280.00

3209 A

Other-than-serious 1 instance 1 exposed
Issued
Abate by
Recent events (2)
  • — F (O)
  • — Z (O)

3210 A

Other-than-serious 1 instance 1 exposed
Issued
Abate by
Penalty
Initial $280.00 · Current $225.00 Reduced
Recent events (2)
  • — F (O) $225.00
  • — Z (O) $280.00

23400017 A

Other-than-serious 1 instance 1 exposed
Issued
Abate by
Penalty
Initial $3375.00 · Current $300.00 Reduced
Recent events (2)
  • — F (O) $300.00
  • — Z (S) $3375.00

23400022 A

Other-than-serious 1 instance 1 exposed
Issued
Abate by
Penalty
Initial $3375.00
Recent events (2)
  • — F (O)
  • — Z (S) $3375.00

3999 B

Other-than-serious 1 instance 1 exposed
Issued
Abate by
Penalty
Initial $3375.00 · Current $1500.00 Reduced
Recent events (2)
  • — F (O) $1500.00
  • — Z (S) $3375.00

4184 B

Serious 3 instances 2 exposed
Issued
Abate by
Penalty
Initial $3375.00 · Current $2700.00 Reduced
Recent events (2)
  • — F (S) $2700.00
  • — Z (S) $3375.00

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 312310089.