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

OSHA Inspection: CORSTONE CONTRACTORS LLC

Unprogrammed Related inspection · Safety discipline

On , OSHA opened an unprogrammed Related safety inspection of CORSTONE CONTRACTORS LLC in 26575 MAPLE VALLEY- BLACK DIAMOND RD SE, MAPLE VALLEY, WA 98038 (NAICS 236118). OSHA activity number 317382372.

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employer broke any rule; any findings appear as the citations listed below, and citations can be contested, reduced, or withdrawn.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
26575 MAPLE VALLEY- BLACK DIAMOND RD SE
City
MAPLE VALLEY
State
WA
ZIP
98038
Mailing
PO BOX 2280, SNOHOMISH, WA 98291
Inspection type
Unprogrammed Related (G)
Scope
Partial (B)
Discipline
Safety
Advance notice
No
Union status
N
Opened
Closing conference
Case closed
Last modified
Data loaded
NAICS code
236118
SIC code (legacy)
1522
Employees
1
Ownership type
A

3 citations on file for this inspection.

1550011005 A

Other-than-serious 1 instance 1 exposed
Issued
Jul 23, 2014
Abate by
Jun 23, 2014

1550011009 A

Other-than-serious 1 instance 1 exposed
Issued
Jul 23, 2014
Abate by
Jun 23, 2014

1550011009 A

Other-than-serious 1 instance 1 exposed
Issued
Jul 23, 2014
Abate by
Jun 23, 2014

View Corstone Contractors LLC'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 317382372.

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