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

OSHA Inspection: NATIONAL DIAMOND LABORATORY OF CALIFORNIA, INC.

Complaint inspection · Health discipline

On , OSHA opened a complaint health inspection of NATIONAL DIAMOND LABORATORY OF CALIFORNIA, INC. in 4650 ALGER STREET, LOS ANGELES, CA 90039 (NAICS 333517). OSHA activity number 343633533.

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employer broke any rule; any findings appear as the citations listed below, and citations can be contested, reduced, or withdrawn.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
4650 ALGER STREET
City
LOS ANGELES
State
CA
ZIP
90039
Mailing
4650 ALGER STREET, LOS ANGELES, CA 90039
Inspection type
Complaint (B)
Scope
Partial (B)
Discipline
Health
Advance notice
No
Union status
Non-union (B)
Opened
Closing conference
Case closed
Last modified
Data loaded
NAICS code
333517
Employees
8
Ownership type
Private (A)

6 citations on file for this inspection.

3578(G)

Other-than-serious Gravity 10 1 instance 3 exposed
Issued
May 10, 2019
Penalty
Initial $350 · Current $200 Reduced
Recent events (3)
  • · F (O) $200
  • · C (O) $350
  • · Z (O) $350

5143(A)(5)

Other-than-serious Gravity 10 3 instances 8 exposed
Issued
May 10, 2019
Abate by
Jun 14, 2019
Penalty
Initial $525 · Current $300 Reduced
Recent events (3)
  • · F (O) $300
  • · C (O) $525
  • · Z (O) $525

5194(H)(1)

Other-than-serious Gravity 10 1 instance 8 exposed
Issued
May 10, 2019
Abate by
Jun 14, 2019
Penalty
Initial $350 · Current $200 Reduced
Recent events (3)
  • · F (O) $200
  • · C (O) $350
  • · Z (O) $350

6151(E)(2)

Other-than-serious Gravity 10 14 instances 8 exposed
Issued
May 10, 2019
Penalty
Initial $435 · Current $250 Reduced
Recent events (3)
  • · F (O) $250
  • · C (O) $435
  • · Z (O) $435

4215(A)

Serious Gravity 10 1 instance 2 exposed
Issued
May 10, 2019
Penalty
Initial $2,360 · Current $1,350 Reduced
Recent events (3)
  • · F (S) $1350
  • · C (S) $2360
  • · Z (S) $2360

5162(A)

Serious Gravity 10 3 instances 2 exposed
Issued
May 10, 2019
Penalty
Initial $3,935 · Current $2,250 Reduced
Recent events (3)
  • · F (S) $2250
  • · C (S) $3935
  • · Z (S) $3935

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 343633533.

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