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

OSHA Inspection: NIELSON UNDERGROUND & EXCAVATION

Planned inspection · Safety discipline

On , OSHA opened a planned safety inspection of NIELSON UNDERGROUND & EXCAVATION in 24737 ARNOLD DRIVE, SONOMA, CA 95476 (NAICS 000000). OSHA activity number 120291935.

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employer broke any rule; any findings appear as the citations listed below, and citations can be contested, reduced, or withdrawn.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
24737 ARNOLD DRIVE
City
SONOMA
State
CA
ZIP
95476
Mailing
1964 IROQUOIS STREET, NAPA, CA 94558
Inspection type
Planned (H)
Scope
Complete (A)
Discipline
Safety
Advance notice
No
Union status
N
Opened
Closing conference
Case closed
Data loaded
NAICS code
000000
SIC code (legacy)
1799
Employees
2
Ownership type
A
Industry flags
Construction safety.

1 citation on file for this inspection.

3410001 F02

Other-than-serious Gravity 00 1 instance
Issued
Jun 30, 1995
Abate by
Jun 30, 1995

View Nielson Underground & Excavation'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 120291935.

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