M & M Three Marble Inc., Sun Valley: Cal/OSHA silica citation
Workers at M & M Three Marble Inc. in Sun Valley, California were exposed to silica dust, and Cal/OSHA cited the company for it. The announcement of this citation came on August 27, 2024.
What inspectors found at the whole workplace goes in the citation; your own health and work there decide whether you can claim.
- Total proposed penalty
- $18,785
- Violations across all hazards cited
- 2 serious and 6 other‑than‑serious
- Announced
- August 27, 2024
- Citation issued by
- Cal/OSHA
- Where
- Sun Valley, California
- Kind of work
- Work with stone
Worked here? Talk to a lawyer for free: (844) 387-9991
Inspection reason: An enforcement push responding to the rise in silicosis cases among stone workers.
Silica dust: the findings
- No effective methods were used to suppress dust
- Employees were not given tight-fitting, full-face powered air-purifying respirators.
More hazards in the citation
- Cited as well for 1 regulatory violation
If your job was with M & M Three Marble
In the US, most new silicosis cases now show up at stone-cutting shops that work with quartz and other engineered stone. Cutting, grinding or polishing slabs for M & M Three Marble in Sun Valley may leave you with two claims. One is a workers' comp claim, paid by the employer's insurance. The other is a lawsuit against the companies that produced the stone.
Two ways to claim in California
Workers' comp claims in California
- to file for workers' comp, from when it disabled you and you knew work caused it
- 1 year
- to send your employer notice in writing
- 30 days
The Department of Industrial Relations, Division of Workers' Compensation is where you file a workers' comp claim in California (official site).
Written notice to your employer is due within 30 days, and your filing deadline is one year past the injury date. With silicosis, that date is the day the illness first disabled you and you knew your job caused it, or should have. (California Labor Code §5400, §5405 and §5412)
A lawsuit against the manufacturers
A suit aimed at whoever made the stone or the equipment counts as a different claim, with a deadline all its own. How silicosis lawsuits work
Can't tell which company made your stone or your equipment? Labels on slabs or tools, along with pay stubs and job photos, can help a lawyer figure it out.
Free claim review by phone

All silica citations in California
Source: official Cal/OSHA release. Cal/OSHA news releases are where these records come from, and they're refreshed each month.
More California employers cited for silica
- Durango Marble in Sun Valley
- Gasper Marble and Tile in Sun Valley
- Jose Sandoval Marble and Granite in Sun Valley
- LB Quality Stone Experts Inc. in Sun Valley
- Nacho Brothers Marble Inc. in Sun Valley
- Valley Marble in Sun Valley
