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

OSHA Inspection: PORTOLA MINERALS CO DBA BLUE MOUNTAIN QUARRIES

Planned inspection · Safety discipline

On , OSHA opened a planned safety inspection of PORTOLA MINERALS CO DBA BLUE MOUNTAIN QUARRIES in 24599 MARBLE QUARRY ROAD, COLUMBIA, CA 95310 (NAICS 212321). OSHA activity number 311726517.

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employer broke any rule; any findings appear as the citations listed below, and citations can be contested, reduced, or withdrawn.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
24599 MARBLE QUARRY ROAD
City
COLUMBIA
State
CA
ZIP
95310
Mailing
24599 MARBLE QUARRY ROAD, COLUMBIA, CA 95310
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
212321
SIC code (legacy)
1442
Employees
50
Ownership type
A

2 citations on file for this inspection.

5162 E

Other-than-serious 2 instances 2 exposed
Issued
May 15, 2009
Abate by
May 20, 2009
Penalty
Initial $680 · Current $680

7030 B

Other-than-serious 2 instances 2 exposed
Issued
May 14, 2009
Abate by
May 29, 2009
Penalty
Initial $550 · Current $550

View Portola Minerals CO DBA Blue Mountain Quarries'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 311726517.

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