Matheson Tri-Gas, Inc safety record at a glance
Matheson Tri-Gas, Inc has been the subject of 7 Cal/OSHA inspections in California since 2000, opened between Dec 29, 2000 and Jul 30, 2021. 3 of them were planned inspections. 3 of them produced citations, 9 in all: 0 serious. Inspectors proposed $4,495 in penalties; after appeals and settlements the current total is $4,085. The largest single penalty, $2,060, came from an inspection opened Sep 23, 2010 in Newark. That places the employer at #28,326 of 122,854 California employers in the database by penalties.
Industry as coded by the inspecting office: Retail Trade; Wholesale Trade; Transportation and Warehousing. Worksites in Newark, Paso Robles.
Every inspection, newest first
Click a date for the citations in that inspection.
| Opened | City | Why | Result | Penalty | Closed |
|---|---|---|---|---|---|
| Jul 30, 2021 | Newark | Planned | no inspection made | $0 | Aug 2, 2021 |
| Sep 2, 2015 | Paso Robles | Planned | no citations | $0 | Dec 31, 2015 |
| Feb 2, 2015 | Newark | Planned | no inspection made | $0 | Feb 16, 2015 |
| Sep 23, 2010 | Newark | Accident | 3 citations | $2,060 | Oct 15, 2012 |
| Jul 27, 2007 | Newark | Complaint | 1 citation | $150 $560 proposed | Mar 9, 2009 |
| Aug 15, 2005 | Newark | Accident | no citations | $0 | Aug 26, 2005 |
| Dec 29, 2000 | Newark | Complaint | 5 citations | $1,875 | Oct 24, 2001 |
Also recorded as: Matheson Tri-Gas; Matheson Tri Gas, Inc.; Matheson Tri-Gas, Inc.
The rules this employer was cited under
- 8 CCR 4650, Storage, Handling, and Use of Cylinders: 3 citations, $1,085
- 8 CCR 5144, Respiratory protection: 1 citation, $750
- 8 CCR 3203, Injury and Illness Prevention Program: 1 citation, $750
- 8 CCR 5452, Fire Protection: 1 citation, $375
- 8 CCR 5155, Airborne contaminants: 1 citation, $375
- 8 CCR 5453, Operation and Maintenance: 1 citation, $375
- 8 CCR 5143, General Requirements of Mechanical Ventilation Systems: 1 citation, $375
Accidents investigated
How to read this record
Each row is one inspection by Cal/OSHA (or, rarely, federal OSHA) of one worksite. Why is the reason it was opened. Penalty is the current figure after any appeal or settlement; where it was reduced, the amount the inspector first proposed is shown under it. "Serious" means a realistic possibility of death or serious harm; "willful" and "repeat" carry penalties up to $162,851 each.
Citations document that the employer was told, in writing, what the rule required and when. That knowledge is often the center of a retaliation case: a worker who complained about the hazard an inspector later cited, and was then fired or cut, has a Labor Code 6310 claim, with lost wages and attorney's fees.
Full explainer: how to read a Cal/OSHA record.
If you work, or worked, at Matheson Tri-Gas, Inc
Write down what you reported, to whom and when, and what changed afterward: shifts, pay, duties, write-ups. Request the inspection file from the Cal/OSHA district office using the activity number on the inspection page. An injury goes through workers' compensation; a firing, demotion or threat after a safety complaint or injury report is an employment claim with a one-year deadline at the Labor Commissioner (Labor Code 6310) and a longer one in court. Free, confidential review: (800) 371-3088 or send what you have.
Source: U.S. Department of Labor OSHA enforcement data, California inspections. Record last checked Nov 1, 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.