Sierra Aluminum Company safety record at a glance
Sierra Aluminum Company has been the subject of 13 Cal/OSHA inspections in California since 2000, opened between May 21, 2003 and Jun 25, 2026. 11 of them were accident inspections. 12 of them produced citations, 22 in all: 10 serious. Inspectors proposed $153,710 in penalties; after appeals and settlements the current total is $106,335. The largest single penalty, $19,250, came from an inspection opened Apr 19, 2012 in Riverside. That places the employer at #382 of 122,854 California employers in the database by penalties.
Industry as coded by the inspecting office: Manufacturing. Worksites in Jurupa Valley, Fontana, Riverside.
Every inspection, newest first
Click a date for the citations in that inspection.
| Opened | City | Why | Result | Proposed | Penalty | Closed |
|---|---|---|---|---|---|---|
| Jun 25, 2026 | Jurupa Valley | Accident | open, no citations yet | 0 | 0 | open |
| Jun 10, 2022 | Fontana | Accident | 1 citation 1 serious | $18,000 | $18,000 | Jan 17, 2025 |
| Feb 24, 2021 | Fontana | Complaint | 1 citation | 0 | 0 | Nov 4, 2021 |
| Aug 20, 2020 | Riverside | Accident | 1 citation 1 serious | $18,000 | $18,000 | Jun 7, 2021 |
| Dec 8, 2015 | Fontana | Unprogrammed related | 2 citations 1 serious | $9,370 | $9,370 | Jun 23, 2016 |
| Jun 18, 2015 | Fontana | Accident | 6 citations 2 serious | $30,180 | $14,240 | Jan 31, 2017 |
| Jun 18, 2015 | Fontana | Accident | 1 citation | $5,000 | $3,000 | Apr 15, 2016 |
| Apr 19, 2012 | Riverside | Accident | 4 citations 2 serious | $30,500 | $19,250 | Oct 7, 2015 |
| Nov 5, 2010 | Riverside | Accident | 1 citation | $475 | $175 | Feb 15, 2012 |
| Apr 30, 2010 | Riverside | Accident | 1 citation 1 serious | $18,000 | $2,700 | Feb 11, 2011 |
| Sep 7, 2004 | Fontana | Accident | 1 citation 1 serious | $18,000 | $18,000 | Oct 9, 2006 |
| Apr 13, 2004 | Riverside | Accident | 1 citation 1 serious | $5,735 | $3,150 | Jul 13, 2008 |
| May 21, 2003 | Riverside | Accident | 2 citations | $450 | $450 | Jul 12, 2008 |
Also recorded as: Sierra Aluminum CO. Inc.; Sierra Aluminum CO; Sierra Aluminum.
The rules this employer was cited under
- 8 CCR 3203, Injury and Illness Prevention Program: 4 citations, 1 serious, $7,870
- 8 CCR 4002, Machine guarding, moving parts: 2 citations, 2 serious, $21,150
- 8 CCR 342, Reporting serious injuries and deaths: 2 citations, $8,000
- 8 CCR 3385, Foot protection: 2 citations, $360
- 8 CCR 3314, Lockout and cleaning of machinery: 1 citation, 1 serious, $18,000
- 8 CCR 4184, Cranes and derricks, general: 1 citation, 1 serious, $18,000
- 8 CCR 3212, Floor openings and wall openings: 1 citation, 1 serious, $8,435
- 8 CCR 3328, Machinery and equipment, general: 1 citation, 1 serious, $6,750
Accidents investigated
Local pages: Jurupa Valley employment lawyer, Fontana employment lawyer, Riverside 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 Sierra Aluminum 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.