PORTOLA MINERALS COMPANY is a other crushed and broken stone mining and quarrying employer in COLUMBIA, CA. Federal records show 7 OSHA inspections with 21 violations and $8,245 in penalties. All data sourced from public federal enforcement records.
Data sourced from OSHA, DOL WHD, MSHA, EPA ECHO, NLRB, FMCSA, OFLC, BLS, SAM.gov, CMS, USAspending, CPSC, NHTSA, and the UVA Corporate Prosecution Registry. Last updated: May 3, 2026.
PORTOLA MINERALS COMPANY
24599 MARBLE QUARRY ROAD, COLUMBIA, CA, 95310
212319 — Top companies in Other Crushed and Broken Stone Mining and Quarrying
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Data Insights
Inspection Breakdown
Peer Comparison
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Inspection History
No inspection records found.
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Data aggregated from public federal enforcement and program records (OSHA, WHD, MSHA, EPA, NLRB, FMCSA, OFLC, BLS, SAM.gov, CMS, USAspending, CPSC, NHTSA) plus the UVA Corporate Prosecution Registry. Employer profiles matched by name and location — matching errors may occur. Risk scores computed by FastDOL, not official government assessments. OSHA citations typically appear 3-8 months after the inspection, so very recent enforcement actions may not yet be reflected. Data provided as-is. Report a data error.
Other employers in Other Crushed and Broken Stone Mining and Quarrying within CA
- HANSON AGGREGATES MID-PACIFIC, INC. — CONCORD — 3 federal records
- SYAR INDUSTRIES, INC. — NAPA — 3 federal records
- GAIL MATERIALS, INC. — CORONA — 3 federal records
- GEORGE REED, INC. — JAMESTOWN — 3 federal records
- SYAR INDUSTRIES, INC. — HOPLAND — 3 federal records
- CEMEX CONSTRUCTION MATERIALS PACIFIC LLC — CLAYTON — 3 federal records
- CALMAT CO — CHULA VISTA — 3 federal records
- STIMPEL-WIEBELHAUS ASSOCIATES, INC. — REDDING — 3 federal records
- GRANITE ROCK COMPANY — AROMAS — 3 federal records
- CEMEX INC — CLAYTON — 3 federal records
Industry context
Within the other crushed and broken stone mining and quarrying industry in CA, PORTOLA MINERALS COMPANY ranks in the 98th percentile of OSHA violation frequency across 1,679 comparable establishments. That places this employer among the highest-violation establishments in its peer set.
OSHA penalty totals rank in the 95th percentile of the same peer group. Inspection frequency ranks in the 79th percentile.
The Bureau of Labor Statistics reports an industry-average Total Recordable Incident Rate (TRIR) of 1.8 for the other crushed and broken stone mining and quarrying sector, with a Days Away, Restricted, or Transferred (DART) rate of 1.3.
Activity timeline
Frequently Asked Questions
- What is PORTOLA MINERALS COMPANY's OSHA violation history?
- PORTOLA MINERALS COMPANY has 7 OSHA inspections on record with 21 violations and $8,245 in total penalties.
- How does PORTOLA MINERALS COMPANY's safety record compare to its industry?
- PORTOLA MINERALS COMPANY operates in the other crushed and broken stone mining and quarrying industry. The industry average Total Recordable Incident Rate (TRIR) is 1.8.
About this data
This profile aggregates federal enforcement records on PORTOLA MINERALS COMPANY of COLUMBIA, CA from 17 federal data sources. Records were found in 2 sources: OSHA workplace safety inspections, and BLS industry safety benchmarks. The remaining 15 sources were checked and found no matching records: WHD, MSHA, EPA, NLRB, OFLC, OFCCP, FMCSA, USAspending, SAM.gov, CMS, CPSC, NHTSA, UVA, SEC enforcement, SEC facts.
Establishments are matched across agencies using normalized employer name, state, and ZIP code. The dataset was last refreshed on May 3, 2026.
This profile may be incomplete if PORTOLA MINERALS COMPANYoperates under multiple legal names, files under variations our entity-matching rules don't yet cover, or maintains records below current matching thresholds. To report a missing record or correction, email corrections@fastdol.com.