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APPENDIX A <br />• INDUSTRY SIC CODES (Summary) <br /> <br />SIC Code SIC Code CategoryAndustry Type Permit Permit <br /> Notes Type <br />1400 Mining and Quarrying of Nonmetallic Minerals, Except Fuels <br />1410 Dimension stone (a) SG <br />1411 Dimension stone; mining and quarrying of dimension stone <br />1420 Crushed and broken stone, including riprap <br />1442 Crushed and broken limestone (a) SG <br />1443 Crushed and broken granite (a) SG <br />1429 Sandstone, and crushed and broken stone not elsewhere classified (a) SG <br />1440 Sand and Gravel <br />1442 Construction sand and gravel (a) SG <br />1146 Industrial sand (a) SG <br />1450 Clay, ceramic, and refractory minerals <br />1455 Kaolin and ball clay (a) SG <br />1459 Shale, clay, ceramic, and refractory minerals, not elsewhere classified (a) SG <br />1470 Chemical and fertilizer mineral mining <br />1474 Potash, soda, and borate minerals (a) SG <br />1475 Phosphate rock (a) SG <br />1479 Chemical and fertilizer mineral mining, not elsewhere classified (a) SG <br />1480 Nonmetallic minerals services, except fuels <br />1481 Nonmetallic minerals services, except fuels - removal or <br /> overburden, strip mining, etc. (a) SG <br />1490 Misc. Nonmetallic minerals, except fuels <br />1499 Borrow pits, misc. Nonmetallic minerals not elsewhere classified, <br /> Such as gypsum, mica, peat, pumice, talc, etc. (a) SG <br />2951 Asphalt batch plants (b) SG, C, L <br />3273 Ready-mix concrete facilities (b) SG, C, L <br />Notes: (a) For this SIC Code, a stormwater permit is required only if runoff contacts overburden, raw material, intermediate or finished <br /> product, or waste products. <br />(b) Asphalt and concrete batch plants at sand and gravel operations may be covered under permit SG; <br />facilities at construction sites may be covered under permit C; <br />other facilities, including mobile plants, may be covered under permit L. <br />Permit types: SG: Sand and Gravel General Permit (Permit No. COG-500000) <br />C: Construction General Permit (Permit No. COR-030000) <br />L: Light Industry General Permit (Permit No. COR-010000) <br />A-1 <br />0