Safety Incidents OSHA Severe Injury Reports · 2015–2025
5,196,249Inspections Most recent open 2026-08-20 Last loaded 2026-08-24

OSHA Inspection: H A DIEFFENBACH INC

Planned inspection · Safety discipline

On , OSHA opened a planned safety inspection of H A DIEFFENBACH INC in WIDENER UNIVERSITY, Chester, PA 19013 (NAICS 000000). OSHA activity number 12679916.

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employer broke any rule; any findings appear as the citations listed below, and citations can be contested, reduced, or withdrawn.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
H A DIEFFENBACH INC
Site address
WIDENER UNIVERSITY
City
Chester
State
PA
ZIP
19013
Inspection type
Planned (H)
Scope
Complete (A)
Discipline
Safety
Union status
Union (A)
Opened
Closing conference
Case closed
Data loaded
NAICS code
000000
SIC code (legacy)
1711
Employees
2
Industry flags
Construction safety.

3 citations on file for this inspection.

1926.400 C01

Serious 1 instance
Issued
Jun 27, 1980
Abate by
May 9, 1980
Penalty
Initial $560 · Current $560

1926.400 H01

Serious 1 instance
Issued
Jun 27, 1980
Abate by
Jul 2, 1980

1926.401 A01

Serious 1 instance
Issued
Jun 27, 1980
Abate by
Jul 2, 1980

View H a Dieffenbach INC's full OSHA safety record →

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 12679916.

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