CORNERSTONE MATERIALS LLC is a cut stone and stone product manufacturing employer in CHINO VALLEY, AZ. Federal records show 2 OSHA inspections with 10 violations and $1,875 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.
CORNERSTONE MATERIALS LLC
2600 N HWY 89, CHINO VALLEY, AZ, 86323
327991 — Top companies in Cut Stone and Stone Product Manufacturing
Industry Benchmark
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 Cut Stone and Stone Product Manufacturing within AZ
- STONE SYSTEMS OF ARIZONA, LLC — PHOENIX — 2 federal records
- JUAREZ STONE LLC — PHOENIX — 1 federal record
- SALCIDO GRANITE LLC — GLENDALE — 1 federal record
- R & R KITCHEN DESIGNS, INC. — PHOENIX — 1 federal record
- ANDREW LAUREN INTERIORS — PHOENIX — 1 federal record
- AQUARIUM DECOR INC — KINGMAN — 1 federal record
- GONDOLIN ENTERPRISES, INC. — PHOENIX — 1 federal record
- CHIVINO SURFACES, L.L.C. — MESA — 1 federal record
- WILD WEST GRANITE INC. — PHOENIX — 1 federal record
- NATURAL STONE MFG CO, INC. — PHOENIX — 1 federal record
Industry context
Within the cut stone and stone product manufacturing industry in AZ, CORNERSTONE MATERIALS LLC ranks in the 91th percentile of OSHA violation frequency across 107 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 81th percentile.
The Bureau of Labor Statistics reports an industry-average Total Recordable Incident Rate (TRIR) of 6.2 for the cut stone and stone product manufacturing sector, with a Days Away, Restricted, or Transferred (DART) rate of 2.5.
Activity timeline
No federal enforcement activity has been recorded against this establishment in the past 15 years.
Frequently Asked Questions
- What is CORNERSTONE MATERIALS LLC's OSHA violation history?
- CORNERSTONE MATERIALS LLC has 2 OSHA inspections on record with 10 violations and $1,875 in total penalties.
- How does CORNERSTONE MATERIALS LLC's safety record compare to its industry?
- CORNERSTONE MATERIALS LLC operates in the cut stone and stone product manufacturing industry. The industry average Total Recordable Incident Rate (TRIR) is 6.2.
About this data
This profile aggregates federal enforcement records on CORNERSTONE MATERIALS LLC of CHINO VALLEY, AZ from 17 federal data sources. Records were found in 3 sources: OSHA workplace safety inspections, MSHA mine safety enforcement, and BLS industry safety benchmarks. The remaining 14 sources were checked and found no matching records: WHD, 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 CORNERSTONE MATERIALS LLCoperates 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.