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

OSHA Inspection: CORNERSTONE MATERIALS LLC

Planned inspection · Safety discipline

On , OSHA opened a planned safety inspection of CORNERSTONE MATERIALS LLC in 2600 N HWY 89, CHINO VALLEY, AZ 86323 (NAICS 327991). OSHA activity number 315584680.

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employer broke any rule; any findings appear as the citations listed below, and citations can be contested, reduced, or withdrawn.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
2600 N HWY 89
City
CHINO VALLEY
State
AZ
ZIP
86323
Inspection type
Planned (H)
Scope
Complete (A)
Discipline
Safety
Advance notice
No
Union status
N
Opened
Closing conference
Case closed
Last modified
Data loaded
NAICS code
327991
SIC code (legacy)
3281
Employees
25
Ownership type
A
Industry flags
Manufacturing safety.

7 citations on file for this inspection.

1910.212 A01

Other-than-serious Gravity 03 1 instance 1 exposed
Issued
Aug 23, 2011
Abate by
Aug 30, 2011
Penalty
Initial $1,250
Recent events (2)
  • — I (O)
  • — Z (S) $1250.00

1910.305 B01

Serious Gravity 03 1 instance 1 exposed
Issued
Aug 23, 2011
Abate by
Aug 30, 2011
Penalty
Initial $1,250 · Current $625 Reduced
Recent events (2)
  • — I (S) $625.00
  • — Z (S) $1250.00

1910.23 C01

Other-than-serious Gravity 01 1 instance 1 exposed
Issued
Aug 23, 2011
Abate by
Aug 30, 2011

1910.23 D01 IV

Other-than-serious Gravity 01 1 instance 1 exposed
Issued
Aug 23, 2011
Abate by
Aug 30, 2011

1910.23 E01

Other-than-serious Gravity 01 1 instance 1 exposed
Issued
Aug 23, 2011
Abate by
Aug 30, 2011

1910.303 F02

Other-than-serious Gravity 01 1 instance 1 exposed
Issued
Aug 23, 2011
Abate by
Aug 30, 2011

1910.305 G02 II

Other-than-serious Gravity 01 1 instance 1 exposed
Issued
Aug 23, 2011
Abate by
Aug 30, 2011

View Cornerstone Materials 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 315584680.

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