County record, Cal/OSHA and OSHA inspections

Mariposa County Cal/OSHA Inspections

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

Every Cal/OSHA and OSHA inspection of employers in Mariposa County since 2000: 202 inspections, 178 citations, $152,226 in penalties, newest first.

Every Cal/OSHA and federal OSHA inspection of a California workplace opened since 2000: 238,466 inspections of 122,854 employers, 447,188 citations, $586,238,760 in penalties, 5,717 deaths investigated.

Cal/OSHA inspections in Mariposa County at a glance

Employers in Mariposa County account for 202 Cal/OSHA and OSHA inspections since 2000, 82 of which produced citations (41%): 178 citations, 82 serious, $152,226 in penalties after appeals, and 6 worker deaths investigated. In the last 12 months 11 inspections opened. The industries inspected most here are Construction (36), Administrative and Support and Waste Management Services (31), Mining, Quarrying, and Oil and Gas Extraction (30).

All inspections, newest first

202 inspections, page 1 of 3. Click a date for the citations.

EmployerCityOpenedWhyResultPenalty
Kieiwit Infrastructure West, CO.El PortalSep 3, 2026Accidentno inspection made0
Small Mine DevelopmentHornitosAug 5, 2026Plannedno citations0
Yosemite Hospitality, LLCYosemite National ParkJul 8, 2026Complaint8 citations 6 serious$22,509
Yosemite Hospitality, LLCYosemite National ParkJul 8, 2026Follow-upno citations0
Yosemite Hospitality, LLCYosemite National ParkMay 27, 2026Complaint4 citations 1 serious$8,441
CA Forestry & Fire ProtectionMidpinesMay 18, 2026Accidentopen, no citations yet0
Mariposa - Yosemite Slate QuarryMariposaApr 29, 2026Plannedno inspection made0
Small Mine DevelopmentHornitosMar 10, 2026Plannedno citations0
Nasco Industrial Services and Supply LLCHornitosMar 10, 2026Programmed relatedno citations0
Small Mine DevelopmentHornitosDec 17, 2025Planned3 citations$2,025
Mariposa - Yosemite Slate QuarryMariposaNov 7, 2025Plannedno inspection made0
Merced CountyMariposaSep 29, 2025Accident1 citation$560
Department of Interior - NPS - (Yosemite National Park) - Wawona Wastewater FacilityYosemite National ParkSep 9, 2025Complaint7 citations 6 serious0
Mariposa CountyMariposaMay 5, 2025Complaintno citations0
Mariposa - Yosemite Slate QuarryMariposaApr 29, 2025Plannedno inspection made0
MT Gaines RockHornitosJan 30, 2025Plannedno citations0
Summit Line Construction, Inc.MariposaJan 3, 2025Accident1 citation$300
Mariposa County Hsa BuildingMariposaJan 2, 2025Complaintno citations0
A.B. Brar, IncMariposaJun 26, 2024Complaint2 citations$285
CA Department of Forestry and Fire ProtectionMariposaApr 5, 2024Accidentno citations0
The Greenlaw Grupe JR., Operating CompanyMariposaDec 26, 2023Accident3 citations$6,250
Ghai Management Services, Inc.MariposaSep 14, 2023Complaint2 citations$320
MP Nextlevel Inc.MariposaJul 25, 2023Complaintno inspection made0
Mariposa Foodwerx IncorporatedMariposaOct 24, 2022Complaint3 citations$435
Steve Manning Construction IncYosemite National ParkSep 13, 2022Referral2 citations 2 serious$6,395
Pacific Oasis Inc.MariposaAug 4, 2022Accidentno citations0
Pacific Oasis Inc.MariposaAug 2, 2022Accidentno citations0
Arborworks, Inc.CoultervilleJul 21, 2022Referralno citations0
CA Department of Forestry and Fire ProtectionMariposaJun 21, 2022Accidentno citations0
A Teichert & Sons, Inc.MariposaJul 8, 2021Referralno citations0
Mariposa Unified School DistrictMariposaNov 5, 2020Complaintno citations0
CA Forestry & Fire ProtectionMariposaJul 31, 2020Accidentno citations0
Modern Air Mechanical ContractorsYosemite National ParkJul 30, 2020Complaint1 citation 1 serious$2,834
U.S. Department of the Interior - National Park Service - San Francisco Maritime National Historical ParkWawonaJul 27, 2020Complaint3 citations 2 serious0
U.S. Department of the Interior - National Park Service - San Francisco Maritime National Historical ParkEl PortalJul 27, 2020Complaint4 citations 3 serious0
CA Forestry & Fire ProtectionMariposaJul 17, 2020Accidentno citations0
Yosemite Hospitality, LLCYosemite National ParkJul 8, 2020Complaintno citations0
Yosemite Hospitality, LLCYosemite National ParkJul 8, 2020Complaint2 citations0
U.S. Department of the Interior - National Park Service - San Francisco Maritime National Historical ParkYosemite National ParkJul 8, 2020Complaint5 citations 3 serious0
California Trees, Inc.MidpinesMay 6, 2020Accident3 citations 2 serious$23,110
O'Reilly Auto PartsMariposaFeb 27, 2020Complaint1 citation$280
The Original Mowbray's Tree Service IncorporatedCoultervilleJan 3, 2020Referralno citations0
Aramark LeisureYosemite National ParkOct 7, 2019Complaintno citations0
Arborworks, Inc.CoultervilleAug 2, 2019Referralno citations0
Central Sierra Pest Control, Inc.CoultervilleMar 20, 2019Referralno citations0
Foster Poultry FarmsMariposaMar 4, 2019Accident2 citations$2,025
Stephen AitchisonCatheys ValleyFeb 6, 2019Complaint1 citation$150
Yosemite Hospitality, LLCYosemite National ParkOct 30, 2018Planned9 citations 2 serious$8,894
Quality Tree CareMariposaOct 23, 2018Accident1 citation$225
Core Tree Care Inc.MariposaSep 17, 2018Complaintno citations0
Stephen AitchisonCatheys ValleyJul 19, 2018Complaint2 citations$390
Core Tree Care Inc.CoultervilleJul 16, 2018Referralno citations0
CA Forestry & Fire ProtectionMariposaJul 14, 2018Fatality or catastrophedeath no citations0
Delaware North Companies Parks & Resorts, Inc.Fish CampJul 6, 2018Accident2 citations$1,200
Pacific Coast Tree ExpertsMariposaJun 26, 2018Referralno citations0
Donald KnissMariposaJun 22, 2018Referralno citations0
Dancefire Ranch LLCCatheys ValleyMar 29, 2018Fatality or catastrophedeath no citations0
Firestorm Wildland Fire Suppression, Inc.CoultervilleFeb 8, 2018Referralno citations0
CA Forestry & Fire ProtectionMariposaOct 24, 2017Accidentno citations0
Michael PattonMariposaAug 23, 2017Referral2 citations$900
P.W. Stephens Environmental, Inc.MariposaJul 6, 2017Referral2 citations$350
CA Forestry & Fire ProtectionMariposaJun 23, 2017Accidentno citations0
Pacific Coast Tree ExpertsCoultervilleJun 20, 2017Referralno citations0
Trees, Inc.CoultervilleJun 19, 2017Referralno citations0
National Waste Management West Inc.CoultervilleApr 11, 2017Referral1 citation$275
Trees, Inc.CoultervilleApr 11, 2017Referralno citations0
Four C's Construction, Inc.Yosemite National ParkMar 14, 2017Planned2 citations$4,040
J.I. Garcia Construction Inc.Yosemite National ParkMar 14, 2017Plannedno citations0
Sierra Mountain Construction, Inc.MariposaMar 6, 2017Referralno citations0
Rgis, LLCYosemite National ParkMar 6, 2017Referraldeath no citations0
Chrisos Tree TrimmingCoultervilleFeb 24, 2017Referralno citations0
Andrew & Paula BaldwinMariposaFeb 13, 2017Referral1 citation$85
A & L Abbott EnterprisesMidpinesFeb 1, 2017Accidentno citations0
Utility Tree Service IncCoultervilleDec 2, 2016Referralno citations0
Arborworks, Inc.CoultervilleDec 1, 2016Fatality or catastrophedeath 2 citations 1 serious$32,000
George Reed IncYosemite National ParkOct 17, 2016Programmed relatedno citations0
AramarkYosemite National ParkAug 9, 2016Complaintno inspection made0
Bryant Home Center, IncMariposaMar 14, 2016Complaint1 citation$335
R.J. Miller Construction, Inc.MariposaMar 4, 2016Referral1 citation$338
Yosemite Hospitality, LLCYosemite National ParkMar 4, 2016Complaintno citations0
National Park Service - Whiskeytown National Recreation AreaEl PortalJul 23, 2015Planned2 citations 2 serious0
National Park Service - Whiskeytown National Recreation AreaEl PortalJul 23, 2015Plannedno citations0
National Park Service - Whiskeytown National Recreation AreaEl PortalJul 23, 2015Planned1 citation 1 serious0
National Park Service - Whiskeytown National Recreation AreaEl PortalJul 23, 2015Planned1 citation 1 serious0
National Park Service - Whiskeytown National Recreation AreaEl PortalJul 23, 2015Plannedno citations0
National Park Service - Whiskeytown National Recreation AreaEl PortalJul 23, 2015Plannedno citations0
Delaware North AT YosemiteYosemite National ParkJul 22, 2015Planned1 citation$2,295
Delaware North AT YosemiteYosemite National ParkJul 22, 2015Plannedno citations0
Delaware North AT YosemiteYosemite National ParkJul 22, 2015Plannedno citations0
Delaware North AT YosemiteYosemite National ParkJul 22, 2015Plannedno citations0
Delaware North AT YosemiteYosemite National ParkJul 22, 2015Plannedno citations0
Steve's Wrought IronMariposaJul 16, 2015Unprogrammed relatedno citations0
Vandemark Enterprises, Inc.MariposaJul 16, 2015Referralno citations0
Kevin GimblMariposaJun 24, 2015Accident3 citations 1 serious$11,110
Mariposa - Yosemite Slate QuarryMariposaApr 28, 2015Plannedno citations0
M.T. Gaines ConsolidatedHornitosApr 28, 2015Plannedno citations0
White Chief Mountain LodgeMariposaJan 9, 2015Complaintno inspection made0
John C. Fremont Healthcare DistrictCoultervilleSep 8, 2014Complaintno citations0
CA Forestry & Fire ProtectionMariposaJun 6, 2014Accidentno citations0
Colorado Quartz Gold CorporationMidpinesMar 27, 2014Planned2 citations 2 serious$3,600

Largest penalties in Mariposa County

EmployerInspectionsCitationsPenaltiesDeathsLatest
Yosemite Hospitality, LLC723$39,8440Jul 8, 2026
Arborworks, Inc.32$32,0001Jul 21, 2022
California Trees, Inc.13$23,1100May 6, 2020
Kevin Gimbl13$11,1100Jun 24, 2015
Steve Manning Construction Inc12$6,3950Sep 13, 2022
The Greenlaw Grupe JR., Operating Company13$6,2500Dec 26, 2023
Delaware North Companies12$4,5000Jun 25, 2008
Four C's Construction, Inc.12$4,0400Mar 14, 2017
Colorado Quartz Gold Corporation44$3,6750Mar 27, 2014
Modern Air Mechanical Contractors11$2,8340Jul 30, 2020
Val's Plumbing32$2,4750Oct 7, 2004
Delaware North AT Yosemite51$2,2950Jul 22, 2015
Small Mine Development33$2,0250Aug 5, 2026
Foster Poultry Farms12$2,0250Mar 4, 2019
Delaware North Companies Parks & Resorts, Inc.12$1,2000Jul 6, 2018
American Venture Construction Group16$9250Jul 20, 2005
Michael Patton12$9000Aug 23, 2017
Natural Environments, Inc.13$7850Nov 15, 2010
Merced County11$5600Sep 29, 2025
Stephen Aitchison23$5400Feb 6, 2019

Rules cited most in Mariposa County

By year opened

YearInspectionsWith citationsCitationsPenaltiesDeaths
20269212$30,9500
20259412$2,8850
2024212$2850
2023325$6,5700
2022625$6,8300
2021100$00
202012719$26,2240
2019523$2,1750
201811414$10,7092
20171558$5,6501
2016734$32,6731
20151758$13,4050
2014624$3,7700
2013523$00
201220925$1700
2011411$00
201019814$7850
2009533$3000
2008526$4,5000
2007322$00
20061145$3751
2005839$9250
2004211$00
2003512$00
2002434$2,6450
2001625$3251
2000222$750

Cities in Mariposa County with inspections

Your rights when the hazard is real in Mariposa County

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.

Our Mariposa County employment law page covers the local courts, agencies and deadlines.

Source: U.S. Department of Labor OSHA enforcement data, California inspections opened through Oct 27, 2026. County is assigned from the worksite ZIP code. 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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