Minnesota Mining & Manufacturing Company safety record at a glance
Minnesota Mining & Manufacturing Company has been the subject of 10 Cal/OSHA inspections in California since 2000, opened between Apr 24, 2001 and Jan 12, 2023. 9 of them were planned inspections. 9 of them produced citations, 33 in all: 1 serious. Inspectors proposed $43,910 in penalties; after appeals and settlements the current total is $24,135. The largest single penalty, $18,450, came from an inspection opened May 30, 2018 in Corona. That places the employer at #5,006 of 122,854 California employers in the database by penalties.
Industry as coded by the inspecting office: Mining, Quarrying, and Oil and Gas Extraction. Worksites in Corona.
Every inspection, newest first
Click a date for the citations in that inspection.
| Opened | City | Why | Result | Proposed | Penalty | Closed |
|---|---|---|---|---|---|---|
| Jan 12, 2023 | Corona | Planned | 4 citations | $750 | $750 | Jun 6, 2023 |
| Oct 12, 2020 | Corona | Planned | 4 citations | $1,635 | $1,635 | May 4, 2021 |
| Aug 10, 2020 | Corona | Complaint | no inspection made | 0 | 0 | Oct 1, 2020 |
| Apr 10, 2019 | Corona | Planned | 3 citations | $1,200 | $1,200 | Jun 3, 2019 |
| May 30, 2018 | Corona | Planned | 12 citations 1 serious | $33,050 | $18,450 | Aug 26, 2019 |
| May 15, 2017 | Corona | Planned | 3 citations | $600 | $600 | Jul 17, 2017 |
| Mar 29, 2016 | Corona | Planned | 3 citations | $5,775 | $600 | Nov 6, 2017 |
| Dec 18, 2014 | Corona | Planned | 1 citation | $300 | $300 | Jan 29, 2016 |
| Jul 11, 2012 | Corona | Planned | 1 citation | $225 | $225 | Sep 13, 2012 |
| Apr 24, 2001 | Corona | Planned | 2 citations | $375 | $375 | Jun 5, 2001 |
Also recorded as: Minnesota Mining and Manufacturing Company; Minnesota Mining and Manufacturing CO.
The rules this employer was cited under
- 8 CCR 4650: 4 citations, $1,725
- 8 CCR 5204: 2 citations, 1 serious, $15,200
- 8 CCR 5048: 2 citations, $900
- 8 CCR 7055: 2 citations, $600
- 8 CCR 3212, Floor openings and wall openings: 2 citations, $450
- 8 CCR 4851: 1 citation, $600
- 8 CCR 3210, Guardrails at elevated locations: 1 citation, $600
- 8 CCR 5045: 1 citation, $450
Local pages: Corona employment lawyer.
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. Proposed is the penalty the inspector assessed; penalty is the current figure after any appeal or settlement. "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 Minnesota Mining & Manufacturing Company
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.