U S Silica Company: 502 reportable incidents operator
Controlled by
Rio Tinto Group
MSHA operator ID: L08665
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- Fatalities
- 0
- Total incidents
- 502
- Mines on record
- 17
- Years on record
- 1986–1996
Top causes
- HANDLING OF MATERIALS 195 non-fatal
- SLIP OR FALL OF PERSON 90 non-fatal
- HANDTOOLS (NONPOWERED) 54 non-fatal
- MACHINERY 45 non-fatal
- DUST DISEASE OF LUNGS 39 non-fatal
- POWERED HAULAGE 30 non-fatal
Incident timeline
1996
7
1995
42
1994
51
1993
52
1992
36
1991
54
1990
59
1989
73
1988
65
1987
52
1986
11
Mines on record
- Ottawa Plant IL
- Millville Plant NJ
- Montpelier Plant VA
- Mill Creek Plant #37 OK
- Berkeley Plant WV
- Rockwood Plant MI
- Mill Creek Plant #39 OK
- Pacific Plant MO
- Kosse Plant TX
- COLUMBIA PLANT SC
- Mapleton Depot Plant PA
- Ledyard Plant CT
- LOWER SPRINGS QUARRY LLC OH
- Hurtsboro Plant AL
- Oceanside Plant CA
- Dubberly Plant LA
- Voca Plant TX
For insurers, brokers, and safety consultants
Where U S Silica Company stands on silica, penalties, and injury rate
MSHA's standard limits respirable silica to 50 micrograms per cubic metre, but MSHA publishes dust and quartz as separate files and never the silica figure itself. We derive it per sample, score it against the limit, and set the operator's injury rate against a benchmark built from the full MSHA operator record. With the 26-year penalty trail, contest posture, and fatality history. Delivered as a PDF with the underlying data as CSV.
The federal record itself stays free on this site. What costs money, and why.