Safety Incidents OSHA Severe Injury Reports · 2015–2025
5,194,531Inspections Most recent open 2026-08-11 Last loaded 2026-08-14

OSHA Inspection: THORNTON ROOFING CO.

Planned inspection · Safety discipline

On , OSHA opened a planned safety inspection of THORNTON ROOFING CO. in 929 - 8TH N.E., MASON CITY, IA 50401 (NAICS 000000). OSHA activity number 304794027.

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employer broke any rule; any findings appear as the citations listed below, and citations can be contested, reduced, or withdrawn.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
929 - 8TH N.E.
City
MASON CITY
State
IA
ZIP
50401
Mailing
18784 BLUE BELLE AVE., CLEAR LAKE, IA 50428
Inspection type
Planned (H)
Scope
Partial (B)
Discipline
Safety
Advance notice
No
Union status
Non-union (N)
Opened
Closing conference
Case closed
Last modified
Data loaded
NAICS code
000000
SIC code (legacy)
1761
Employees
5
Ownership type
Private (A)
Industry flags
Construction safety.

1 citation on file for this inspection.

1926.20 B02

Serious Gravity 01 1 instance 5 exposed
Issued
Sep 10, 2002
Abate by
Sep 13, 2002
Penalty
Initial $600 · Current $600

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 304794027.

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