Safety Incidents OSHA Severe Injury Reports · 2015–2025
5,189,645Inspections Most recent open 2026-07-16 Last loaded 2026-07-20

OSHA Inspection: NICHOLAS CASTILLO DBA IRONHORSE BUILDERS

Accident-driven inspection · Safety discipline

On , OSHA opened an accident-driven safety inspection of NICHOLAS CASTILLO DBA IRONHORSE BUILDERS in 2743 KNOB HILL RD, SONOMA, CA 95476 (NAICS 236115). OSHA activity number 125539080.

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Site address
2743 KNOB HILL RD
City
SONOMA
State
CA
ZIP
95476
Mailing
P O BOX 7830, COTATI, CA 94531
Inspection type
Accident-driven (A)
Scope
Partial (B)
Discipline
Safety
Advance notice
No
Union status
N
Opened
Closing conference
Case closed
Last modified
Data loaded
NAICS code
236115
SIC code (legacy)
1521
Employees
4
Ownership type
A
Industry flags
Construction safety.

3 citations on file for this inspection.

1509 A

Other-than-serious 1 instance
Issued
Abate by
Penalty
Initial $50.00 · Current $50.00

1509 B

Other-than-serious 1 instance
Issued
Abate by
Penalty
Initial $50.00 · Current $50.00

1646 E

Serious 1 instance
Issued
Abate by
Penalty
Initial $900.00 · Current $900.00

CBH HOMES

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 125539080.