ROBERTSON'S READY MIX INC is a crushed and broken granite mining and quarrying employer in CORONA, CA. Federal records show 5 OSHA inspections with 7 violations and $2,450 in penalties. 1 Wage & Hour Division enforcement case on record. 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 1, 2026.
ROBERTSON'S READY MIX INC
9001 CAJALCO ROAD, CORONA, CA, 92882
Parent: Robertson's Ready Mix (42 locations)
212313 — Top companies in Crushed and Broken Granite Mining and Quarrying
EIN: 330491865
33 employees
Industry Benchmark
Data Insights
Inspection Breakdown
Peer Comparison
Labor Relations (NLRB)
Motor Carrier Safety (FMCSA)
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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.
Part of a larger organization
ROBERTSON'S READY MIX INC is one of 42 establishments in our dataset that roll up under the parent organization Robertson's Ready Mix.
Federal enforcement records on ROBERTSON'S READY MIX INC represent activity at this specific establishment. The full enforcement footprint of Robertson's Ready Mix across all 42 of its tracked locations is viewable on the parent profile.
Other establishments operated by Robertson's Ready Mix
- ROBERTSON'S READY MIX INC. — BARSTOW, CA — 3 federal records
- ROBERTSON'S READY MIX, INC. — PARAMOUNT, CA — 3 federal records
- ROBERTSON'S READY MIX, LTD. — REDLANDS, CA — 3 federal records
- ROBERTSON'S READY MIX INC — LUCERNE VALLEY, CA — 3 federal records
- ROBERTSON'S READY MIX INC — BANNING, CA — 3 federal records
- ROBERTSON'S READY MIX — SAN DIEGO, CA — 3 federal records
- ROBERTSONS READY MIX INC — LUCERNE VALLEY, CA — 3 federal records
- ROBERTSON'S READY MIX LTD. — EL CAJON, CA — 3 federal records
- ROBERTSON'S READY MIX, INC. — RIVERSIDE, CA — 3 federal records
- ROBERTSON'S READY MIX, LTD. — FRENCH CAMP, CA — 3 federal records
Other employers in Crushed and Broken Granite Mining and Quarrying within CA
- GRANITE CONSTRUCTION COMPANY — FALLBROOK — 3 federal records
- CALPORTLAND COMPANY — MOJAVE — 3 federal records
- SUPERIOR READY MIX CONCRETE L.P. — SAN MARCOS — 3 federal records
- ROBERTSON'S READY MIX LTD. — EL CAJON — 3 federal records
- CALMAT — CORONA — 3 federal records
- AMES CONSTRUCTION, INC. — DUARTE — 3 federal records
- HANSON AGGREGATES MID-PACIFIC, INC. — SANTA MARGARITA — 3 federal records
- ROBERTSON'S READY MIX INC — BANNING — 3 federal records
- ROBERTSON'S READY MIX INC — LUCERNE VALLEY — 3 federal records
- HANSON AGGREGATES PACIFIC SOUTHWEST LLC — CORONA — 3 federal records
Industry context
Within the crushed and broken granite mining and quarrying industry in CA, ROBERTSON'S READY MIX INC ranks in the 88th percentile of OSHA violation frequency across 1,678 comparable establishments. That places this employer among the highest-violation establishments in its peer set.
OSHA penalty totals rank in the 87th percentile of the same peer group. Inspection frequency ranks in the 71th percentile.
The Bureau of Labor Statistics reports an industry-average Total Recordable Incident Rate (TRIR) of 1.4 for the crushed and broken granite mining and quarrying sector, with a Days Away, Restricted, or Transferred (DART) rate of 1.1. ROBERTSON'S READY MIX INC's self-reported DART rate is 0, which is below the industry average.
Activity timeline
Frequently Asked Questions
- What is ROBERTSON'S READY MIX INC's OSHA violation history?
- ROBERTSON'S READY MIX INC has 5 OSHA inspections on record with 7 violations and $2,450 in total penalties.
- How does ROBERTSON'S READY MIX INC's safety record compare to its industry?
- ROBERTSON'S READY MIX INC operates in the crushed and broken granite mining and quarrying industry. The industry average Total Recordable Incident Rate (TRIR) is 1.4. ROBERTSON'S READY MIX INC's self-reported DART rate is 0 compared to an industry average of 1.1.
About this data
This profile aggregates federal enforcement records on ROBERTSON'S READY MIX INC of CORONA, CA from 17 federal data sources. Records were found in 6 sources: OSHA workplace safety inspections, DOL Wage and Hour Division enforcement, MSHA mine safety enforcement, NLRB labor relations cases, FMCSA motor carrier safety, and BLS industry safety benchmarks. The remaining 11 sources were checked and found no matching records: EPA, OFLC, OFCCP, 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 1, 2026. ROBERTSON'S READY MIX INC resolves to the parent rollup Robertson's Ready Mix, which operates 42 establishments in our dataset. OSHA accident records on file for ROBERTSON'S READY MIX INC include 1 hospitalization.
This profile may be incomplete if ROBERTSON'S READY MIX INCoperates 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.