HI-GRADE MATERIALS CO. is a construction sand and gravel mining employer in LITTLEROCK, CA. Federal records show 21 OSHA inspections with 16 violations and $5,585 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: April 30, 2026.
HI-GRADE MATERIALS CO.
6500 E. AVENUE T, LITTLEROCK, CA, 93543
Parent: Hi-Grade Materials Co. (6 locations)
212321 — Top companies in Construction Sand and Gravel Mining
EIN: 951843828
28 employees
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.
Part of a larger organization
HI-GRADE MATERIALS CO. is one of 6 establishments in our dataset that roll up under the parent organization Hi-Grade Materials Co..
Federal enforcement records on HI-GRADE MATERIALS CO. represent activity at this specific establishment. The full enforcement footprint of Hi-Grade Materials Co. across all 6 of its tracked locations is viewable on the parent profile.
Other establishments operated by Hi-Grade Materials Co.
- HI-GRADE MATERIALS CO. — INDIO, CA — 2 federal records
- HI-GRADE MATERIALS CO. — INDIO, CA — 2 federal records
- HI-GRADE MATERIALS CO. — 29 PALMS, CA — 2 federal records
- HI-GRADE MATERIALS CO. — LUCERNE VALLEY, CA — 2 federal records
- HI-GRADE MATERIALS INC — HESPERIA, CA — 1 federal record
Other employers in Construction Sand and Gravel Mining within CA
- HUMBOLDT REDWOOD COMPANY LLC — SCOTIA — 4 federal records
- CALAVERAS MATERIALS, INC. — MERCED — 4 federal records
- BCJ SAND & ROCK, INC. — OROVILLE — 4 federal records
- HANSON AGGREGATES PACIFIC SOUTHWEST INC — SANTEE — 3 federal records
- BCJ SAND AND ROCK, INC — SACRAMENTO — 3 federal records
- GRANITE ROCK COMPANY — HOLLISTER — 3 federal records
- CALPORTLAND COMPANY — MOORPARK — 3 federal records
- CALMAT CO — BAKERSFIELD — 3 federal records
- GRANITE CONSTRUCTION COMPANY — LLANO — 3 federal records
- CEMEX, INC. — FRIANT — 3 federal records
Industry context
Within the construction sand and gravel mining industry in CA, HI-GRADE MATERIALS CO. ranks in the 97th 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 92th percentile of the same peer group. Inspection frequency ranks in the 99th percentile.
The Bureau of Labor Statistics reports an industry-average Total Recordable Incident Rate (TRIR) of 1.5 for the construction sand and gravel mining sector, with a Days Away, Restricted, or Transferred (DART) rate of 1. HI-GRADE MATERIALS CO.'s self-reported DART rate is 0, which is below the industry average.
Activity timeline
Frequently Asked Questions
- What is HI-GRADE MATERIALS CO.'s OSHA violation history?
- HI-GRADE MATERIALS CO. has 21 OSHA inspections on record with 16 violations and $5,585 in total penalties.
- How does HI-GRADE MATERIALS CO.'s safety record compare to its industry?
- HI-GRADE MATERIALS CO. operates in the construction sand and gravel mining industry. The industry average Total Recordable Incident Rate (TRIR) is 1.5. HI-GRADE MATERIALS CO.'s self-reported DART rate is 0 compared to an industry average of 1.
About this data
This profile aggregates federal enforcement records on HI-GRADE MATERIALS CO. of LITTLEROCK, CA 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 April 30, 2026. HI-GRADE MATERIALS CO. resolves to the parent rollup Hi-Grade Materials Co., which operates 6 establishments in our dataset.
This profile may be incomplete if HI-GRADE MATERIALS CO.operates 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.