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Mistras Group, Inc.: OSHA inspections and violations

Martinez, California · Engineering Services · NAICS 541330

4inspections
11citation items
$5,900current penalties
Mar 12, 2026last inspection

OSHA has inspected Mistras Group, Inc. 4 times in California since 2014.

The latest one began on Mar 12, 2026 to follow up on an earlier case, in Martinez.

Those inspections ended with 11 citation items: 11 other-than-serious.

Penalties were first proposed at $8,370 and now stand at $5,900, 30% lower after settlements or reviews.

comes up most often in these citations: 2 items under 4300.29.

How that compares: the median penalty per cited inspection for professional services employers since 2015 is $1,821, and Mistras Group, Inc. averages $450 (2 cited inspections).

1 inspection on this page followed a fatal incident.

Mistras Group, Inc.: OSHA citation items per year, 2014 to 2026
Citation items per year, by inspection date.

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Inspection history

Inspection 348810524 OPENED MAR 12, 2026Closed

Follow-up · Partial · Safety · 57 employees at the site · Closed May 12, 2026

3485 Pacheco Blvd, Martinez, CA 94553 · Engineering Services · OSHA's record · Phone and website on Google Maps

No citations from this inspection.

Inspection 348159807 OPENED APR 4, 2025Closed

Accident · Partial · Health · 43 employees at the site · Closed Dec 29, 2025

3495 Pacheco Blvd, Martinez, CA 94553 · Petroleum Refineries · OSHA's record · Phone and website on Google Maps

Citation and ruleTypeProposedCurrentIssuedStatus
Citation 1, item 1 Other-than-serious$375$0Oct 4, 2025Final
Citation 1, item 2 Other-than-serious$280$0Oct 4, 2025Final
Citation 1, item 3 Other-than-serious$280$0Oct 4, 2025Final
Citation 1, item 4
29 CFR 3214(B)
Other-than-serious$280$0Oct 4, 2025Final
Citation 1, item 5
29 CFR 3273(A)
Other-than-serious$280$0Oct 4, 2025Final

Inspection 346832207 OPENED JUL 11, 2023Closed

Accident · Partial · Health · 20 employees at the site · Closed Oct 1, 2025

3485 Pacheco Blvd., Martinez, CA 94553 · Engineering Services · OSHA's record · Phone and website on Google Maps

Citation and ruleTypeProposedCurrentIssuedStatus
Citation 1, item 1
29 CFR 5194(E)(1)
Other-than-serious$750$600Jan 10, 2024Final
Citation 1, item 2
29 CFR 5194(H)(1)
Other-than-serious$375$0Jan 10, 2024Final
Citation 1, item 3 Other-than-serious$375$300Jan 10, 2024Final
Citation 1, item 4 Other-than-serious$375$0Jan 10, 2024Final

Inspection 340125137 OPENED NOV 26, 2014Closed

Fatality or catastrophe · Partial · Safety · 5,500 employees at the site · Closed Mar 10, 2016

841 Chevron Way, Richmond, CA 94801 · Testing Laboratories and Services · OSHA's record · Phone and website on Google Maps

Incident on Nov 26, 2014 (fatal): Employee collapses and dies

On November 26, 2014, an employee was walking to his tractor trailer to retrieve his cell phone when he collapsed and died.

Citation and ruleTypeProposedCurrentIssuedStatus
Citation 1, item 1
29 CFR 342(A)
Other-than-serious$5,000$5,000May 15, 2015Final
Citation 1, item 2
29 CFR 14001(A)
Other-than-serious$0$0Jun 4, 2015Final

The rules behind these citations

Current text from the Code of Federal Regulations. Some citations were issued under older wording.

29 CFR 2500.25

29 CFR 2500.8

29 CFR 4300.29

29 CFR 4300.40

Other engineering services employers in California

Source: U.S. Department of Labor, OSHA enforcement data. A citation is OSHA's allegation; employers can contest it, and the status column shows where each item stands. Something wrong on this page? Tell us.