Sierra Aggregate Company, Inc. safety record at a glance
Sierra Aggregate Company, Inc. has been the subject of 13 Cal/OSHA inspections in California since 2000, opened between Oct 17, 2007 and Jun 18, 2026. 13 of them were planned inspections. 6 of them produced citations, 14 in all: 0 serious. Inspectors proposed $1,445 in penalties; after appeals and settlements the current total is $1,445. The largest single penalty, $410, came from an inspection opened Jan 31, 2018 in Lucerne Valley. That places the employer at #45,818 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 Lucerne Valley.
Every inspection, newest first
Click a date for the citations in that inspection.
| Opened | City | Why | Result | Proposed | Penalty | Closed |
|---|---|---|---|---|---|---|
| Jun 18, 2026 | Lucerne Valley | Planned | open, no citations yet | 0 | 0 | open |
| Feb 14, 2023 | Lucerne Valley | Planned | no inspection made | 0 | 0 | Mar 28, 2023 |
| Nov 30, 2020 | Lucerne Valley | Planned | no citations | 0 | 0 | Dec 29, 2020 |
| Sep 18, 2019 | Lucerne Valley | Planned | 1 citation | $100 | $100 | Dec 2, 2019 |
| Dec 18, 2018 | Lucerne Valley | Planned | no citations | 0 | 0 | Dec 27, 2018 |
| Jan 31, 2018 | Lucerne Valley | Planned | 4 citations | $410 | $410 | Mar 12, 2018 |
| Nov 8, 2016 | Lucerne Valley | Planned | 3 citations | $260 | $260 | Dec 20, 2016 |
| Jun 17, 2015 | Lucerne Valley | Planned | 2 citations | $350 | $350 | Feb 12, 2016 |
| Dec 14, 2010 | Lucerne Valley | Planned | no citations | 0 | 0 | Dec 15, 2010 |
| Jan 6, 2010 | Lucerne Valley | Planned | 3 citations | $250 | $250 | Apr 29, 2010 |
| Nov 19, 2008 | Lucerne Valley | Planned | no citations | 0 | 0 | Nov 21, 2008 |
| Oct 24, 2007 | Lucerne Valley | Planned | 1 citation | $75 | $75 | Jun 13, 2008 |
| Oct 17, 2007 | Lucerne Valley | Planned | no inspection made | 0 | 0 | Oct 17, 2007 |
Also recorded as: Sierra Aggregate Company Inc.
The rules this employer was cited under
- 8 CCR 3314, Lockout and cleaning of machinery: 2 citations, $260
- 8 CCR 4650: 2 citations, $150
- 8 CCR 461: 1 citation, $175
- 8 CCR 3210, Guardrails at elevated locations: 1 citation, $175
- 8 CCR 7030: 1 citation, $150
- 8 CCR 7183: 1 citation, $110
- 8 CCR 5021: 1 citation, $100
- 8 CCR 3276, Portable ladders: 1 citation, $100
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 Aggregate Company, 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.