Safety Incidents OSHA Severe Injury Reports · 2015–2025
5,191,871Inspections Most recent open 2026-07-30 Last loaded 2026-08-03

OSHA Inspection: SIGMA CO.

Accident-driven inspection · Safety discipline

On , OSHA opened an accident-driven safety inspection of SIGMA CO. in 2306 HIDDEN OAKS DR., HAYWARD, CA 94541 (NAICS 000000). OSHA activity number 119674471.

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employer broke any rule; any findings appear as the citations listed below, and citations can be contested, reduced, or withdrawn.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
SIGMA CO.
Site address
2306 HIDDEN OAKS DR.
City
HAYWARD
State
CA
ZIP
94541
Inspection type
Accident-driven (A)
Scope
Complete (A)
Discipline
Safety
Advance notice
No
Union status
N
Opened
Closing conference
Case closed
Last modified
Data loaded
NAICS code
000000
SIC code (legacy)
1791
Employees
4
Ownership type
A
Industry flags
Construction safety.

8 citations on file for this inspection.

341 A01

Other-than-serious 6 instances 3 exposed
Issued
Jul 26, 1999
Abate by
Jul 29, 1999
Penalty
Initial $435 · Current $435

1509 C

Other-than-serious 1 instance 3 exposed
Issued
Jul 26, 1999
Abate by
Sep 2, 1999
Penalty
Initial $175 · Current $85 Reduced
Recent events (2)
  • · A (O) $85.00
  • · Z (O) $175.00

1509 C

Other-than-serious 4 instances 4 exposed
Issued
Jul 26, 1999
Abate by
Sep 2, 1999
Penalty
Initial $215 · Current $85 Reduced
Recent events (2)
  • · A (O) $85.00
  • · Z (O) $215.00

1541 J02

Serious 6 instances 3 exposed
Issued
Jul 26, 1999
Abate by
Sep 30, 1999
Penalty
Initial $875 · Current $875
Recent events (2)
  • · A (S) $875.00
  • · Z (S) $875.00

1515 A01

Serious 6 instances 3 exposed
Issued
Jul 26, 1999
Abate by
Jul 29, 1999
Penalty
Initial $875 · Current $85 Reduced
Recent events (2)
  • · A (S) $85.00
  • · Z (S) $875.00

1541 J02

Serious 1 instance 3 exposed
Issued
Jul 26, 1999
Abate by
Jul 29, 1999
Penalty
Initial $875 · Current $85 Reduced
Recent events (2)
  • · A (S) $85.00
  • · Z (S) $875.00

1541 K01

Serious 6 instances 3 exposed
Issued
Jul 26, 1999
Abate by
Jul 29, 1999
Penalty
Initial $875 · Current $85 Reduced
Recent events (2)
  • · A (S) $85.00
  • · Z (S) $875.00

15410001 A01

Serious 6 instances 3 exposed
Issued
Jul 26, 1999
Abate by
Jul 29, 1999
Penalty
Initial $4,500 · Current $3,000 Reduced
Recent events (2)
  • · A (S) $3000.00
  • · Z (S) $4500.00

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 119674471.

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