Establishment profile
ALPHA MATERIALS INC
6170 20TH STREET, RIVERSIDE, CA, 92509
212321 — Construction Sand and Gravel Mining
Summary
ALPHA MATERIALS INC has accumulated 0 OSHA violations across 2 inspections over 19 years of recorded history.
The most recent federal enforcement activity was recorded 17 years ago.
Federal records were found in 1 of 15 sources. Sources without matching records returned empty for this establishment.
Agency coverage
ALPHA MATERIALS INC appears in OSHA workplace safety, MSHA mine safety, and FMCSA motor carrier registration records only. No matching records were found in WHD wage enforcement, EPA environmental compliance, NLRB labor relations, OFLC visa and labor certification (historical), SAM.gov federal debarment, CMS nursing home enforcement, UVA Corporate Prosecution Registry, CPSC product recalls, or NHTSA vehicle recalls.
OSHA workplace safety
Peer comparison
Fewer violations than most other employers in NAICS 2123 within CA. Peer group: 1,687 employers. This establishment has 0 OSHA violations; peer median is 2.
Safety self-report (OSHA 300A)
No self-reported injury rates filed with OSHA's Injury Tracking Application for ALPHA MATERIALS INC. Verify directly with OSHA Injury Tracking Application →
Industry benchmark
BLS rates reflect industry-wide averages. Self-reported figures come from OSHA’s Injury Tracking Application; absence of self-reported data does not necessarily indicate non-compliance — many establishments fall below the ITA reporting threshold.
Inspection breakdown
Complaint- and accident-triggered inspections are stronger risk signals than routine planned inspections.
OSHA severe injury reports
No severe injury reports (hospitalization, amputation, or loss of an eye) on file under 29 CFR 1904.39 for ALPHA MATERIALS INC. Verify directly with Occupational Safety and Health Administration →
Activity timeline
No federal enforcement activity has been recorded against this establishment in 17+ years. Most recent activity: 17 years ago. Data on this page is refreshed weekly.
Wage & Hour Division (WHD)
No WHD wage, overtime, or child-labor enforcement cases on file for ALPHA MATERIALS INC. Verify directly with Wage and Hour Division →
Mine safety (MSHA)
Company-level in CA — for ALPHA MATERIALS INC, not this location alone
Mine Safety & Health Administration — citations issued at mining operations. MSHA records cases at the company/regional level (no worksite address), so these are matched by company name and state and may span other ALPHA MATERIALS INC operations in the same state.
MSHA citations
Mine Safety and Health Administration citations. S&S (significant and substantial) marks violations that could reasonably contribute to a serious injury. Negligence rating is MSHA’s operator-culpability assessment (none, low, moderate, high, or reckless disregard). Proposed = assessed at issuance; Paid = post-settlement / appeal. 100 citations · 47S&S · $102,504 proposed / $78,424 paid.
| Citation | Mine | Date | Section | S&S | Negligence | Proposed | Paid |
|---|---|---|---|---|---|---|---|
| 8995362 | Alpha Materials, Inc. San Bernardino, CA | Feb 2018 | — | Yes | ModNegligence | $8,472 | $3,800 |
| 7999924 | Alpha Materials, Inc. San Bernardino, CA | Apr 2008 | — | Yes | HighNegligence | $7,774 | $4,177 |
| 8995360 | Alpha Materials, Inc. San Bernardino, CA | Feb 2018 | — | No | HighNegligence | $7,624 | $3,781 |
| 8995353 | Alpha Materials, Inc. San Bernardino, CA | Feb 2018 | — | Yes | HighNegligence | $7,624 | $7,624 |
| 7999932 | Alpha Materials, Inc. San Bernardino, CA | Apr 2008 | — | Yes | HighNegligence | $7,578 | $4,547 |
| 7999930 | Alpha Materials, Inc. San Bernardino, CA | Apr 2008 | — | Yes | HighNegligence | $7,578 | $4,547 |
| 6440830 | Alpha Materials, Inc. San Bernardino, CA | Nov 2008 | — | No | HighNegligence | $4,000 | $4,000 |
| 7999923 | Alpha Materials, Inc. San Bernardino, CA | Apr 2008 | — | Yes | HighNegligence | $3,493 | $3,493 |
| 7999921 | Alpha Materials, Inc. San Bernardino, CA | Apr 2008 | — | Yes | HighNegligence | $3,143 | $3,143 |
| 7999922 | Alpha Materials, Inc. San Bernardino, CA | Apr 2008 | — | Yes | HighNegligence | $2,341 | $2,000 |
| 8995359 | Alpha Materials, Inc. San Bernardino, CA | Feb 2018 | — | Yes | HighNegligence | $2,295 | $2,295 |
| 8995358 | Alpha Materials, Inc. San Bernardino, CA | Feb 2018 | — | Yes | ModNegligence | $2,295 | $2,295 |
| 8995356 | Alpha Materials, Inc. San Bernardino, CA | Feb 2018 | — | Yes | ModNegligence | $2,295 | $2,295 |
| 8995352 | Alpha Materials, Inc. San Bernardino, CA | Feb 2018 | — | Yes | HighNegligence | $2,295 | $2,295 |
| 7999933 | Alpha Materials, Inc. San Bernardino, CA | Apr 2008 | — | Yes | ModNegligence | $2,282 | $1,369 |
| 7999929 | Alpha Materials, Inc. San Bernardino, CA | Apr 2008 | — | Yes | ModNegligence | $2,106 | $1,264 |
| 7999928 | Alpha Materials, Inc. San Bernardino, CA | Apr 2008 | — | Yes | ModNegligence | $2,106 | $1,264 |
| 7999926 | Alpha Materials, Inc. San Bernardino, CA | Apr 2008 | — | Yes | ModNegligence | $2,106 | $1,264 |
| 7999925 | Alpha Materials, Inc. San Bernardino, CA | Apr 2008 | — | Yes | ModNegligence | $2,106 | $1,264 |
| 8613828 | Alpha Materials, Inc. San Bernardino, CA | Jul 2012 | — | Yes | ModNegligence | $1,795 | $1,795 |
| 8613826 | Alpha Materials, Inc. San Bernardino, CA | Jul 2012 | — | Yes | ModNegligence | $1,795 | $1,795 |
| 6397494 | Alpha Materials, Inc. San Bernardino, CA | Jan 2007 | — | Yes | HighNegligence | $1,566 | $1,566 |
| 8995312 | Alpha Materials, Inc. San Bernardino, CA | Sep 2017 | — | Yes | HighNegligence | $1,010 | $1,010 |
| 8689975 | Alpha Materials, Inc. San Bernardino, CA | Feb 2016 | — | Yes | HighNegligence | $946 | $946 |
| 7999920 | Alpha Materials, Inc. San Bernardino, CA | Apr 2008 | — | Yes | ModNegligence | $946 | $946 |
| 7999919 | Alpha Materials, Inc. San Bernardino, CA | Apr 2008 | — | Yes | ModNegligence | $946 | $568 |
| 8689648 | Alpha Materials, Inc. San Bernardino, CA | Nov 2012 | — | Yes | ModNegligence | $807 | $807 |
| 8607180 | Alpha Materials, Inc. San Bernardino, CA | Oct 2011 | — | Yes | ModNegligence | $807 | $807 |
| 8995355 | Alpha Materials, Inc. San Bernardino, CA | Feb 2018 | — | Yes | ModNegligence | $691 | $691 |
| 7999927 | Alpha Materials, Inc. San Bernardino, CA | Apr 2008 | — | Yes | ModNegligence | $634 | $380 |
| 7999918 | Alpha Materials, Inc. San Bernardino, CA | Apr 2008 | — | Yes | ModNegligence | $634 | $380 |
| 8613824 | Alpha Materials, Inc. San Bernardino, CA | Jul 2012 | — | Yes | ModNegligence | $540 | $540 |
| 8607179 | Alpha Materials, Inc. San Bernardino, CA | Oct 2011 | — | Yes | ModNegligence | $540 | $540 |
| 8607176 | Alpha Materials, Inc. San Bernardino, CA | Oct 2011 | — | Yes | ModNegligence | $540 | $540 |
| 8995357 | Alpha Materials, Inc. San Bernardino, CA | Feb 2018 | — | No | HighNegligence | $462 | $462 |
| 8995354 | Alpha Materials, Inc. San Bernardino, CA | Feb 2018 | — | No | HighNegligence | $462 | $462 |
| 5166048 | Alpha Materials, Inc. San Bernardino, CA | May 2026 | — | Yes | ModNegligence | $398 | — |
| 6397491 | Alpha Materials, Inc. San Bernardino, CA | Jan 2007 | — | Yes | HighNegligence | $350 | $350 |
| 8689974 | Alpha Materials, Inc. San Bernardino, CA | Feb 2016 | — | Yes | HighNegligence | $285 | $285 |
| 6440838 | Alpha Materials, Inc. San Bernardino, CA | Nov 2008 | — | Yes | HighNegligence | $285 | $285 |
| 8995310 | Alpha Materials, Inc. San Bernardino, CA | Sep 2017 | — | No | HighNegligence | $204 | $204 |
| 6397498 | Alpha Materials, Inc. San Bernardino, CA | Jan 2007 | — | Yes | ModNegligence | $191 | $191 |
| 6397492 | Alpha Materials, Inc. San Bernardino, CA | Jan 2007 | — | Yes | ModNegligence | $191 | $191 |
| 9509636 | Alpha Materials, Inc. San Bernardino, CA | Jan 2025 | — | Yes | ModNegligence | $177 | $177 |
| 9509693 | Alpha Materials, Inc. San Bernardino, CA | Nov 2025 | — | No | HighNegligence | $168 | $168 |
| 6369303 | Alpha Materials, Inc. San Bernardino, CA | Oct 2005 | — | Yes | LowNegligence | $165 | $165 |
| 9892058 | Alpha Materials, Inc. San Bernardino, CA | May 2024 | — | Yes | ModNegligence | $147 | $147 |
| 9509714 | Alpha Materials, Inc. San Bernardino, CA | Jan 2024 | — | No | LowNegligence | $147 | $147 |
| 9684125 | Alpha Materials, Inc. San Bernardino, CA | Apr 2022 | — | No | HighNegligence | $143 | $143 |
| 8874152 | Alpha Materials, Inc. San Bernardino, CA | Oct 2016 | — | No | ModNegligence | $134 | $134 |
| 6398298 | Alpha Materials, Inc. San Bernardino, CA | Mar 2020 | — | No | LowNegligence | $123 | $123 |
| 8995375 | Alpha Materials, Inc. San Bernardino, CA | May 2018 | — | No | ModNegligence | $118 | $118 |
| 8995374 | Alpha Materials, Inc. San Bernardino, CA | May 2018 | — | No | ModNegligence | $118 | $118 |
| 8995373 | Alpha Materials, Inc. San Bernardino, CA | May 2018 | — | No | ModNegligence | $118 | $118 |
| 8995314 | Alpha Materials, Inc. San Bernardino, CA | Sep 2017 | — | Yes | ModNegligence | $116 | $116 |
| 8995313 | Alpha Materials, Inc. San Bernardino, CA | Sep 2017 | — | No | ModNegligence | $116 | $116 |
| 8995311 | Alpha Materials, Inc. San Bernardino, CA | Sep 2017 | — | No | ModNegligence | $116 | $116 |
| 8995028 | Alpha Materials, Inc. San Bernardino, CA | Jun 2017 | — | No | LowNegligence | $116 | $116 |
| 8995027 | Alpha Materials, Inc. San Bernardino, CA | Jun 2017 | — | No | LowNegligence | $116 | $116 |
| 8995026 | Alpha Materials, Inc. San Bernardino, CA | Jun 2017 | — | Yes | ModNegligence | $116 | $116 |
| 8995025 | Alpha Materials, Inc. San Bernardino, CA | Jun 2017 | — | Yes | ModNegligence | $116 | $116 |
| 8698305 | Alpha Materials, Inc. San Bernardino, CA | Jun 2013 | — | Yes | ModNegligence | $108 | $108 |
| 8689649 | Alpha Materials, Inc. San Bernardino, CA | Nov 2012 | — | No | ModNegligence | $108 | $108 |
| 8613829 | Alpha Materials, Inc. San Bernardino, CA | Jul 2012 | — | No | ModNegligence | $108 | $108 |
| 8613827 | Alpha Materials, Inc. San Bernardino, CA | Jul 2012 | — | No | ModNegligence | $108 | $108 |
| 8613825 | Alpha Materials, Inc. San Bernardino, CA | Jul 2012 | — | No | ModNegligence | $108 | $108 |
| 8607178 | Alpha Materials, Inc. San Bernardino, CA | Oct 2011 | — | No | ModNegligence | $108 | $108 |
| 8607177 | Alpha Materials, Inc. San Bernardino, CA | Oct 2011 | — | No | ModNegligence | $108 | $108 |
| 8689981 | Alpha Materials, Inc. San Bernardino, CA | Feb 2016 | — | No | ModNegligence | $100 | $100 |
| 8689980 | Alpha Materials, Inc. San Bernardino, CA | Feb 2016 | — | No | ModNegligence | $100 | $100 |
| 8689979 | Alpha Materials, Inc. San Bernardino, CA | Feb 2016 | — | No | ModNegligence | $100 | $100 |
| 8689978 | Alpha Materials, Inc. San Bernardino, CA | Feb 2016 | — | Yes | ModNegligence | $100 | $100 |
| 8689977 | Alpha Materials, Inc. San Bernardino, CA | Feb 2016 | — | No | ModNegligence | $100 | $100 |
| 8689976 | Alpha Materials, Inc. San Bernardino, CA | Feb 2016 | — | No | ModNegligence | $100 | $100 |
| 8788696 | Alpha Materials, Inc. San Bernardino, CA | Oct 2015 | — | No | ModNegligence | $100 | $100 |
| 8788695 | Alpha Materials, Inc. San Bernardino, CA | Oct 2015 | — | No | ModNegligence | $100 | $100 |
| 8781745 | Alpha Materials, Inc. San Bernardino, CA | Apr 2015 | — | Yes | LowNegligence | $100 | $100 |
| 8781679 | Alpha Materials, Inc. San Bernardino, CA | Sep 2014 | — | No | ModNegligence | $100 | $100 |
| 8781470 | Alpha Materials, Inc. San Bernardino, CA | Jun 2014 | — | No | ModNegligence | $100 | $100 |
| 8689908 | Alpha Materials, Inc. San Bernardino, CA | Oct 2013 | — | No | ModNegligence | $100 | $100 |
| 8698304 | Alpha Materials, Inc. San Bernardino, CA | Jun 2013 | — | No | LowNegligence | $100 | $100 |
| 8607181 | Alpha Materials, Inc. San Bernardino, CA | Oct 2011 | — | No | LowNegligence | $100 | $100 |
| 8560874 | Alpha Materials, Inc. San Bernardino, CA | Nov 2010 | — | No | HighNegligence | $100 | $100 |
| 8560873 | Alpha Materials, Inc. San Bernardino, CA | Nov 2010 | — | No | HighNegligence | $100 | $100 |
| 8560872 | Alpha Materials, Inc. San Bernardino, CA | Oct 2010 | — | No | HighNegligence | $100 | $100 |
| 8555262 | Alpha Materials, Inc. San Bernardino, CA | Jan 2010 | — | No | HighNegligence | $100 | $100 |
| 6440839 | Alpha Materials, Inc. San Bernardino, CA | Nov 2008 | — | No | ModNegligence | $100 | $100 |
| 6440837 | Alpha Materials, Inc. San Bernardino, CA | Nov 2008 | — | No | LowNegligence | $100 | $100 |
| 6440836 | Alpha Materials, Inc. San Bernardino, CA | Nov 2008 | — | No | ModNegligence | $100 | $100 |
| 6440835 | Alpha Materials, Inc. San Bernardino, CA | Nov 2008 | — | No | ModNegligence | $100 | $100 |
| 7999931 | Alpha Materials, Inc. San Bernardino, CA | Apr 2008 | — | No | ModNegligence | $100 | $100 |
| 6397497 | Alpha Materials, Inc. San Bernardino, CA | Jan 2007 | — | No | HighNegligence | $60 | $60 |
| 6397496 | Alpha Materials, Inc. San Bernardino, CA | Jan 2007 | — | No | HighNegligence | $60 | $60 |
| 6397495 | Alpha Materials, Inc. San Bernardino, CA | Jan 2007 | — | No | HighNegligence | $60 | $60 |
| 6397493 | Alpha Materials, Inc. San Bernardino, CA | Jan 2007 | — | No | HighNegligence | $60 | $60 |
| 6397490 | Alpha Materials, Inc. San Bernardino, CA | Jan 2007 | — | No | ModNegligence | $60 | $60 |
| 6397489 | Alpha Materials, Inc. San Bernardino, CA | Jan 2007 | — | No | HighNegligence | $60 | $60 |
| 6397488 | Alpha Materials, Inc. San Bernardino, CA | Jan 2007 | — | No | HighNegligence | $60 | $60 |
| 6397487 | Alpha Materials, Inc. San Bernardino, CA | Jan 2007 | — | No | HighNegligence | $60 | $60 |
| 6397486 | Alpha Materials, Inc. San Bernardino, CA | Jan 2007 | — | No | HighNegligence | $60 | $60 |
Source: MSHA citation database. “Contractor” annotations indicate the cited party was on-site at the mine but not the mine’s operator -- responsibility attaches to the contractor LLC, not the mine’s owner. Section codes reference 30 CFR (the Mine Safety and Health regulations).
Labor relations (NLRB)
No NLRB unfair labor practice charges or union representation cases on file for ALPHA MATERIALS INC. Verify directly with National Labor Relations Board →
Visa & labor certification (OFLC) — historical
No H-1B, H-2A, or H-2B labor condition applications on file (historical data only — DOL ended OFLC publication) for ALPHA MATERIALS INC. Verify directly with Office of Foreign Labor Certification →
Environmental compliance (EPA)
No EPA inspections or formal enforcement actions on file for ALPHA MATERIALS INC. Verify directly with Environmental Protection Agency →
EPA-registered facilities
Every EPA ECHO facility associated with this employer, sorted most-significant first. Each row links to EPA’s Detailed Facility Report for the source-of-truth record. Permits column lists active programs (Air = Clean Air Act, Water = Clean Water Act, RCRA = hazardous waste, TRI = Toxics Release Inventory reporting). 3 facilities · 1 marked inactive.
| Facility | Permits | Status | Inspections | Formal actions | Penalties | Last inspected | ECHO |
|---|---|---|---|---|---|---|---|
ALPHA MATERIALS 20TH ST VAN DELL RD · RIVERSIDE, CA, 92509 | Water | No Violation Identified | 0 | 0 | — | — | View → |
ALPHA MATERIALS 5433 28TH STREET · RIVERSIDE, CA, 92509 | RCRA | No Violation Identified | 0 | 0 | — | — | View → |
ALPHA MATERIALS INC 6170 20TH ST · RIVERSIDE, CA, 92509 | RCRA | No Violation Identified | 0 | 0 | — | — | View → |
Source: EPA ECHO (Enforcement and Compliance History Online). Compliance status follows EPA’s own labels (“Sig Violation” = significant noncompliance; QNCR = quarters of noncompliance over the recent reporting window). Inactive facilities (struck through) retain historical enforcement records even after operations ceased.
Motor carrier safety (FMCSA)
Federal Motor Carrier Safety Administration — DOT-regulated carrier registration and fleet data.
Federal criminal prosecution record
No federal criminal prosecutions, plea agreements, or deferred-prosecution agreements on file for ALPHA MATERIALS INC. Verify directly with UVA Corporate Prosecution Registry →
Inspection history
| Date | Trigger | Violations | Serious | Penalty | |
|---|---|---|---|---|---|
| 2008-08-13 | Planned | 0 | — | $0 | |
| 2007-05-23 | Planned | 0 | — | $0 |
Source: OSHA IMIS. Citation amounts reflect initially assessed penalties; final amounts after appeal may differ.
In the news
Other employers in this industry and state
Other employers in construction sand and gravel mining within CA, ordered by federal enforcement volume:
- HUMBOLDT REDWOOD COMPANY LLCSCOTIA — 4 federal enforcement records
- CALAVERAS MATERIALS, INC.MERCED — 4 federal enforcement records
- BCJ SAND & ROCK, INC.OROVILLE — 4 federal enforcement records
- GRANITE ROCK COMPANYHOLLISTER — 3 federal enforcement records
- CEMEX, INC.FRIANT — 3 federal enforcement records
- BCJ SAND AND ROCK, INCSACRAMENTO — 3 federal enforcement records
- CALPORTLAND COMPANYMOORPARK — 3 federal enforcement records
- GRANITE CONSTRUCTION COMPANYLLANO — 3 federal enforcement records
- CALMAT COBAKERSFIELD — 3 federal enforcement records
- PYRAMID CONSTRUCTION AND AGGREGATES, INC.HEBER — 3 federal enforcement records
Related searches
- Construction Sand and Gravel MiningAll employers in this industry
- Employers in CAState-wide enforcement data
- Construction Sand and in CAIndustry × state cross-filter
About this data
This profile aggregates federal enforcement records on ALPHA MATERIALS INC from every major federal compliance and enforcement source plus the UVA Corporate Prosecution Registry. OSHA workplace safety inspections, WHD wage cases, MSHA mine safety, EPA environmental enforcement, NLRB labor relations, OFLC visa/labor certification, FMCSA motor carrier registration, SAM.gov debarments, CMS nursing-home records, BLS industry safety benchmarks, OSHA ITA self-reported injury rates, SEC enforcement and financial disclosures, CPSC and NHTSA recalls.
Establishments are matched across agencies using normalized employer name, state, and ZIP code.
OSHA citations typically appear 3–8 months after the inspection, so very recent enforcement actions may not yet be reflected. Profiles may be incomplete if the establishment operates under multiple legal names or files under variations our entity-matching rules don’t yet cover. To report a missing record or correction, email corrections@fastdol.com.
Need API access, bulk download, or licensed redistribution? The website is free. Programmatic and licensed access is handled separately.
Contact sales →Frequently asked
- What is ALPHA MATERIALS INC's OSHA violation history?
- ALPHA MATERIALS INC has 2 OSHA inspections on record with 0 violations and $0 in total penalties.
- How does ALPHA MATERIALS INC's safety record compare to its industry?
- ALPHA MATERIALS INC operates in the construction sand and gravel mining industry. The industry average Total Recordable Incident Rate (TRIR) is 1.5.