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

OSHA Inspection: MAMCO INC

Complaint inspection · Safety discipline

On , OSHA opened a complaint safety inspection of MAMCO INC in 9101-9199 MERRILL AVE, ONTARIO, CA 91762 (NAICS 237110). OSHA activity number 344171384.

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employer broke any rule; any findings appear as the citations listed below, and citations can be contested, reduced, or withdrawn.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
MAMCO INC
Site address
9101-9199 MERRILL AVE
City
ONTARIO
State
CA
ZIP
91762
Mailing
764 W. RAMONA EXPRESSWAY STE. C., PERRIS, CA 92571
Inspection type
Complaint (B)
Scope
Partial (B)
Discipline
Safety
Advance notice
No
Union status
B
Opened
Closing conference
Case closed
Last modified
Data loaded
NAICS code
237110
Employees
10
Ownership type
A

2 citations on file for this inspection.

1526(A)

Other-than-serious Gravity 5 1 instance 1 exposed
Issued
Dec 23, 2019
Penalty
Initial $205 · Current $205
Recent events (1)
  • — Z (O) $205

1712(C)(1)

Other-than-serious Gravity 10 1 instance 5 exposed
Issued
Dec 23, 2019
Penalty
Initial $550 · Current $550
Recent events (1)
  • — Z (O) $550

View Mamco INC'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 344171384.

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