Dirt, Sand, and Rock Quarries and Aggregate Processing
Dec 08, 2020#0183;#32;1442 Construction Sand and Gravel Mining; 1446 Industrial Sand Mining; Facilities that contain all stormwater onsite (including from haul roads) may be exempt from MSGP requirements. Review Claiming No Discharge from Stormwater Permit Requirements (RG538) for more information. Industrial Wastewater Regulations