U.S. Silica Company, LLC

U.S. Silica Company, LLC operates 22 recorded mine and mineral-extraction sites across the United States, drawn from MSHA Mine Safety and Health Administration records. 20 are currently active. Total reported employee count across all sites: 900.

22Total Sites

20Active

12States

900Employees

Where U.S. Silica Company, LLC Operates

State	Sites
Nevada	6
Mississippi	2
New Jersey	2
Oklahoma	2
Oregon	2
Tennessee	2
Alabama	1
Louisiana	1
Missouri	1
Pennsylvania	1
Virginia	1
West Virginia	1

What U.S. Silica Company, LLC Mines

Diatomaceous Earth (Diatomite) · 6Sand, Industrial NEC · 4Construction Sand and Gravel · 3Aplite · 1Bentonite · 1Clay, Ceramic, Refractory Mnls. · 1Common Clays NEC · 1Crushed, Broken Sandstone · 1

All Sites Operated by U.S. Silica Company, LLC

Mine	State	County	Commodity	Status
Colado Plant	Nevada	Pershing	Diatomaceous Earth (Diatomite)	Active
Ep Engineered Clays Corporation	Mississippi	Hinds	Clay, Ceramic, Refractory Mnls.	Active
Middleton Operations	Tennessee	Hardeman	Common Clays NEC	Active
Berkeley Plant	West Virginia	Morgan	Ground Silica	Active
Clark Operations	Nevada	Storey	Diatomaceous Earth (Diatomite)	Active
Fernley Operations	Nevada	Churchill	Diatomaceous Earth (Diatomite)	Active
Celatom Plant	Oregon	Malheur	Diatomaceous Earth (Diatomite)	Active
Mapleton Depot Plant	Pennsylvania	Huntingdon	Sand, Industrial NEC	Active
Pacific Plant	Missouri	St. Louis	Quartz, Ground	Active
Colado Mine	Nevada	Pershing	Diatomaceous Earth (Diatomite)	Active
Mill Creek Plant #39	Oklahoma	Johnston	Crushed, Broken Sandstone	Active
Mauricetown Plant	New Jersey	Cumberland	Sand, Industrial NEC	Active
Montpelier Plant	Virginia	Hanover	Aplite	Active
Mill Creek Plant #37	Oklahoma	Johnston	Sand, Industrial NEC	Active
Jackson Plant	Tennessee	Madison	Sand, Industrial NEC	Active
Dubberly Plant	Louisiana	Webster	Construction Sand and Gravel	Active
Celatom Mine	Oregon	Malheur	Diatomaceous Earth (Diatomite)	Active
Hurtsboro Plant	Alabama	Russell	Construction Sand and Gravel	Active
Fowlkes Mine	Mississippi	Monroe	Bentonite	Active
Port Elizabeth Plant	New Jersey	Cumberland	Construction Sand and Gravel	Active
Pop-Corn	Nevada	Churchill	Perlite	Intermittent
Hazen Pit	Nevada	Churchill	Misc. Nonmetallic Mnls. NEC	Intermittent

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