30504001

Industrial Processes
Mineral Products
Mining and Quarrying of Nonmetallic Minerals
Open Pit Blasting

sourcefacilitylocation
0142000010 F003OGLEBAY NORTON INDUSTRIAL SANDS MILLWOOD PLANT HOWARD
0363000002 F001LAFARGE/SYSTECH ENVIRONMENTAL CORP. PAULDING
0664000087 F013OGLEBAY NORTON GLASS ROCK PLANT GLENFORD