Industry record, Cal/OSHA and OSHA inspections

Mining, Quarrying, and Oil and Gas Extraction Cal/OSHA Inspections

Benjamin Eghbali, Esq.Legal notes by Benjamin Eghbali, Esq.,

Every Cal/OSHA and OSHA inspection of California employers in Mining, Quarrying, and Oil and Gas Extraction since 2000: 7,006 inspections, 7,300 citations, $6,857,669 in penalties, newest first.

Every Cal/OSHA and federal OSHA inspection of a California workplace opened since 2000: 238,466 inspections of 122,853 employers, 447,188 citations, $586,238,760 in penalties, 5,717 deaths investigated.

Cal/OSHA inspections in Mining, Quarrying, and Oil and Gas Extraction at a glance

California employers in Mining, Quarrying, and Oil and Gas Extraction account for 7,006 Cal/OSHA and OSHA inspections since 2000, 3,491 of which produced citations (50%): 7,300 citations, 559 serious, $6,857,669 in penalties after appeals, and 75 worker deaths investigated. In the last 12 months 187 inspections opened.

All inspections, newest first

7,006 inspections, page 1 of 71. Click a date for the citations.

EmployerCityOpenedWhyResultPenalty
National Cement Company of CaliforniaLebecOct 26, 2026Accidentopen, no citations yet$0
MCC Development Corp dba Robertsons Ready MixPalmdaleOct 21, 2026Plannedopen, no citations yet$0
The Don Chapin CO., Inc.MarinaOct 21, 2026Plannedopen, no citations yet$0
West Coast Aggregate Supply Inc.San DiegoOct 20, 2026Plannedopen, no citations yet$0
Granite Construction CompanyLlanoOct 15, 2026Plannedopen, no citations yet$0
Martin Marietta - Eagle Valley AggregatesCoronaOct 13, 2026Plannedopen, no citations yet$0
MP Mine Operations LLCMountain PassOct 12, 2026Plannedopen, no citations yet$0
Capital Agg, IncSheridanOct 9, 2026Plannedopen, no citations yet$0
Santa Paula Materials, Inc.Santa PaulaOct 6, 2026Plannedopen, no citations yet$0
North Star Minerals, Inc.ActonSep 30, 2026Plannedopen, no citations yet$0
Gillibrand Industrial Sands, Inc.Simi ValleySep 29, 2026Plannedopen, no citations yet$0
A Teichert & Son Inc dba Teichert AggregatesRancho CordovaSep 25, 2026Plannedopen, no citations yet$0
Granite Construction CompanySacramentoSep 24, 2026Accidentopen, no citations yet$0
Sls&n Inc.MonroviaSep 24, 2026Plannedopen, no citations yet$0
Gordon Sand CO.GuadalupeSep 23, 2026Plannedopen, no citations yet$0
Calportland CompanyApple ValleySep 23, 2026Plannedopen, no citations yet$0
Weimer and Sons, Inc.OrovilleSep 23, 2026Plannedopen, no citations yet$0
A Teichert & Son Inc dba Teichert AggregatesCoolSep 16, 2026Plannedopen, no citations yet$0
Brown General Engineering, Inc.OrovilleSep 15, 2026Plannedopen, no citations yet$0
Calnrg Operating, LLCPiruSep 15, 2026Plannedopen, no citations yet$0
Western Mesquite Mines, Inc.BrawleySep 14, 2026Plannedopen, no citations yet$0
Connolly-Pacific COAvalonSep 11, 2026Plannedopen, no citations yet$0
Calmat COSun ValleySep 11, 2026Plannedno inspection made$0
Vulcan Materials CompanyCanyon CountrySep 9, 2026Plannedno inspection made$0
Santa Barbara Sand and Topsoil CorporationSanta BarbaraSep 9, 2026Plannedopen, no citations yet$0
Griffith CompanyLebecSep 2, 2026Plannedopen, no citations yet$0
Canyon Rock CO IncForestvilleSep 2, 2026Accidentopen, no citations yet$0
Chandler Aggregates IncLake ElsinoreAug 26, 2026Plannedopen, no citations yet$0
Buellflat Rock Company IncSolvangAug 25, 2026Plannedopen, no citations yet$0
Don Robinson Sand & Gravel IncNewcastleAug 24, 2026Plannedopen, no citations yet$0
Quartzview Inc.AlleghanyAug 20, 2026Plannedno inspection made$0
Red Ledge Mining Company IncAlleghanyAug 20, 2026Complaintno inspection made$0
MP Mine Operations LLCMountain PassAug 19, 2026Complaintopen, no citations yet$0
Calportland ConstructionSanta MariaAug 19, 2026Plannedno citations$0
Mineral Resources LLCOrovilleAug 14, 2026Plannedopen, no citations yet$0
Seduli Sutter Operations CorporationSutter CreekAug 14, 2026Plannedno citations$0
Oil Dri Corporation of AmericaTaftAug 13, 2026Plannedopen, no citations yet$0
Calportland CompanyMojaveAug 12, 2026Complaintopen, no citations yet$0
Eagle Rock IncJunction CityAug 11, 2026Complaintopen, no citations yet$0
Turner Excavating, Inc.WestwoodAug 6, 2026Plannedno citations$0
Sezzi Concrete and Materials IncSusanvilleAug 6, 2026Plannedopen, no citations yet$0
Robertson's Ready Mix LTD A California Limited PartnershipCoronaAug 6, 2026Plannedopen, no citations yet$0
Small Mine DevelopmentHornitosAug 5, 2026Plannedno citations$0
Santa FE Aggregates IncWintonAug 5, 2026Unprogrammed relatedopen, no citations yet$0
7/11 Materials IncBishopJul 30, 2026Plannedopen, no citations yet$0
Santa FE Aggregates IncWintonJul 30, 2026Plannedopen, no citations yet$0
Jaxon EnterprisesMaderaJul 29, 2026Plannedopen, no citations yet$0
Bc2 Environmental, LLCYucaipaJul 29, 2026Accidentopen, no citations yet$0
Twin Mountain Rock Venture, LLC.Little LakeJul 29, 2026Plannedno citations$0
Langley Hill QuarryWoodsideJul 28, 2026Plannedopen, no citations yet$0
Granite Construction CompanyCoalingaJul 17, 2026Plannedno inspection made$0
Granite Construction CompanyCoalingaJul 17, 2026Plannedno citations$0
A Teichert & Son Inc dba Teichert AggregatesTracyJul 16, 2026Plannedopen, no citations yet$0
Cemex Construction Materials Pacific LLCRialtoJul 7, 2026Planned3 citations$1,350
7/11 Materials IncChicoJul 6, 2026Plannedno citations$0
Calmat COPleasantonJul 2, 2026Plannedno citations$0
Tim Greenleaf EngineeringHuntington BeachJun 30, 2026Programmed relatedno citations$0
U.S. Borax Inc.BoronJun 26, 2026Complaintopen, no citations yet$0
Global Pumice, LLCOlanchaJun 25, 2026Plannedopen, no citations yet$0
David Crye General Engineering Contractor, Inc.Santa MargaritaJun 24, 2026Plannedopen, no citations yet$0
American Perlite CompanyBig PineJun 24, 2026Plannedopen, no citations yet$0
F.W. Aggregates Inc.Lone PineJun 24, 2026Plannedopen, no citations yet$0
Calportland CompanyPaso RoblesJun 24, 2026Plannedopen, no citations yet$0
Global Pumice, LLCOlanchaJun 22, 2026Plannedno inspection made$0
Rio Tinto Minerals, Inc.CartagoJun 22, 2026Plannedno citations$0
Sierra Aggregate Company, Inc.Lucerne ValleyJun 18, 2026Plannedopen, no citations yet$0
R & S Industrial Field Service, IncIrwindaleJun 18, 2026Accidentopen, no citations yet$0
Martin Marietta San Diego Aggregates, LLCLakesideJun 16, 2026Plannedno citations$0
Duke Sherwood Contracting IncOrovilleJun 4, 2026Plannedno citations$0
Martin Marietta San Diego Aggregates, LLCSanteeJun 3, 2026Planned1 citation$280
Arcosa LWFP, LLCFrazier ParkJun 3, 2026Complaintopen, no citations yet$0
Ethosenergy Field Services, LLCWest HollywoodJun 3, 2026Accidentopen, no citations yet$0
Kenai Drilling LimitedMiddletownMay 28, 2026Accidentopen, no citations yet$0
All American AsphaltCoronaMay 27, 2026Planned4 citations$1,400
Franklin Construction IncVinaMay 20, 2026Plannedno citations$0
True Organic Products, IncHelmMay 18, 2026Accidentopen, no citations yet$0
LLP Concrete, Inc.LodiMay 15, 2026Planned1 citation$280
Rich-Ted Trucking, Inc.KelseyvilleMay 6, 2026Planned1 citation$175
General Production Service of California, Inc.TaftMay 6, 2026Accidentno citations$0
Ohe Sand & Gravel IncOakdaleApr 29, 2026Plannedno inspection made$0
Mariposa - Yosemite Slate QuarryMariposaApr 29, 2026Plannedno inspection made$0
Jaxon EnterprisesLe GrandApr 29, 2026Plannedno inspection made$0
MRC Rock and Sand LLCOjaiApr 23, 2026Planned1 citation 1 repeat$21,600
Martin Marietta Northern California Aggregates, LLC.Santa MariaApr 22, 2026Planned1 citation$750
Sentinel Peak Resources Management LLCFellowsApr 22, 2026Fatality or catastropheno citations$0
Recycled Base Materials, Inc.Santa MariaApr 22, 2026Programmed relatedopen, no citations yet$0
Robertson's Ready Mix IncCabazonApr 22, 2026Plannedno citations$0
Calmat COSan DiegoApr 22, 2026Complaintno citations$0
San Joaquin County Aggregates, LLCLindenApr 16, 2026Planned2 citations$390
MP Mine Operations LLCMountain PassApr 15, 2026Accidentopen, no citations yet$0
Basalite Building Products, LLCSacramentoApr 13, 2026Plannedno citations$0
7/11 Materials IncOnyxApr 9, 2026Planned3 citations$1,585
Robertson's Ready Mix LTD A California Limited PartnershipEl CajonApr 9, 2026Planned2 citations$525
Calmat COSangerApr 8, 2026Plannedno citations$0
Calmat COChula VistaApr 8, 2026Plannedno citations$0
Calmat CONapaApr 3, 2026Plannedno citations$0
Tapo Rock and Sand IncSimi ValleyApr 2, 2026Planned1 citation$150
Recycled Base Materials, Inc.PortervilleApr 1, 2026Programmed related2 citations$1,000
Seduli Sutter Operations CorporationSutter CreekApr 1, 2026Planned1 citation 1 repeat$900
Jaxon EnterprisesPortervilleApr 1, 2026Planned1 citation$685

Largest penalties in Mining, Quarrying, and Oil and Gas Extraction

EmployerInspectionsCitationsPenaltiesDeathsLatest
Cemex Inc106161$163,6201Nov 22, 2019
National Cement Company of California1833$138,3851Oct 26, 2026
Robertsons Ready Mix5761$133,8050Sep 12, 2014
Lehigh Southwest Cement Company3553$120,5205Jul 22, 2021
Mercer Fraser Company2758$118,2600Apr 21, 2025
Cemex Construction Materials Pacific LLC62114$110,8350Jul 7, 2026
E & B Natural Resources Management Corporation527$110,0650Dec 2, 2022
Mmi Services, Inc.1114$105,4750Jun 19, 2025
Hi-Grade Materials CO.4879$104,5001Feb 24, 2026
Papich Construction Company, Inc.1022$98,1400Dec 5, 2025
Key Energy Services Inc.2311$91,9754Jan 21, 2021
Ortiz Enterprises Inc38$87,3251Oct 16, 2007
Oil Well Service Company1017$86,6401Oct 25, 2019
U.S. Borax Inc.2226$73,1701Jun 26, 2026
Martin Marietta Northern California Aggregates, LLC.89$71,8400Apr 22, 2026
Searles Valley Minerals2227$71,7252Sep 5, 2025
Excalibur Well Services Corporation911$69,9850Nov 5, 2024
Calportland Company5269$69,9550Sep 23, 2026
Vulcan Materials Company12248$67,8952Sep 9, 2026
Granite Rock Company4960$65,2350Feb 5, 2026

Rules cited most in Mining, Quarrying, and Oil and Gas Extraction

By year opened

YearInspectionsWith citationsCitationsPenaltiesDeaths
20261513879$161,5800
202518993237$438,3300
202416766136$332,2022
202312475154$273,1951
202214394279$441,1002
202115893211$277,6974
20201195496$137,3201
2019261138293$225,2104
2018259165511$399,0350
2017215132378$339,9852
2016269176614$390,5100
2015280177478$429,6902
2014358190370$270,2754
2013230107183$255,4754
2012334144237$155,9802
2011369159271$118,8106
2010373164266$269,7503
2009429169262$112,4954
2008575233369$263,7205
2007567265447$224,1053
2006536279536$341,6555
2005257125214$340,1306
2004209116203$172,9703
2003286148268$175,9206
200210656129$173,9405
2001312552$123,9301
2000111027$12,6600

Your rights when the hazard is real

You can report it, and the employer may not touch you for it. Any worker can file a confidential complaint with the nearest Cal/OSHA district office, by phone, online or in writing, and can ask that the employer not be told who complained. Firing, demoting, cutting hours, threatening or otherwise punishing a worker for a safety complaint, for reporting an injury, for testifying or for asking for a Cal/OSHA inspection is unlawful retaliation under Labor Code 6310; a complaint to the Labor Commissioner's Retaliation Complaint Investigation unit must be filed within one year, and a civil lawsuit is also available.

You can refuse work that would violate a safety standard and create a real and apparent hazard to you or your coworkers, and the employer may not retaliate for that refusal (Labor Code 6311). Say why in writing if you can, name the rule or the hazard, and keep a copy.

Every employer must have a written Injury and Illness Prevention Program (Title 8, section 3203), train workers on the hazards of their jobs, provide protective equipment at no cost, and give workers access to the exposure and medical records that concern them. Outdoor workplaces need a heat illness plan with water, shade and rest (section 3395); indoor ones above 82 degrees need the indoor rule (section 3396); and since July 2024 nearly every employer needs a workplace violence prevention plan (Labor Code 6401.9).

An injury itself is a workers' compensation claim, handled separately from anything on this page. What this firm handles is the employment side: the retaliation, the firing after the injury report, the wage and hour problems that usually travel with an unsafe workplace. Free, confidential review: (800) 371-3088.

Source: U.S. Department of Labor OSHA enforcement data, California inspections opened through Oct 27, 2026. Back to the safety tracker.

About this data: Records come from the U.S. Department of Labor's OSHA enforcement datasets (inspection, violation, accident and accident injury tables), which carry Cal/OSHA's state-plan inspections alongside federal ones. We load every inspection of a California worksite opened since January 1, 2000 and refresh it weekly. Employer names, addresses and industry codes are as the inspecting office recorded them; similar names are grouped where they clearly refer to the same employer. A citation can be reduced, vacated or withdrawn on appeal, and an inspection can stay open for months, so a record can change. Penalties shown as "current" reflect the latest status in the federal file. This page is public information about the employer's regulatory record, not legal advice and not a statement that any person was harmed or any law broken beyond what the record states.

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