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APPLICATION FOR CDPS GENERAL PERMIT COG500000 <br />DISCHARGES FROM SAND AND GRAVEL MINING AND PROCESSING <br />Page 1 of 8 – Revision 2/2021 <br />For Agency Use Only: <br />Permit Number Assigned <br />COG50 - <br />Please print or type. <br />The application must be submitted to the Water Quality Control Division at least 60 days prior to the anticipated date <br />of discharge, and must be considered complete by the division before the review and approval process begins. The <br />division will notify the applicant if additional information is needed to complete the application. If more space is <br />required to answer any question, please attach additional sheets to the application form. Applications may be <br />submitted by mail or hand delivered to: <br />Colorado Department of Public Health and Environment <br />Water Quality Control Division, WQCD-P-B2 <br />4300 Cherry Creek Drive South <br />Denver, Colorado 80246-1530 <br /> Submission – Digitally signed documents may be emailed to <br />cdphe.wqrecordscenter@state.co.us <br />Do not follow up with a mailed-in hard copy. <br />A.PERMIT INFORMATION <br />Reason for Application: □ NEW CERT <br />□ RENEW CERT EXISTING CERT # <br />Applicant is: □ Property Owner □ Contractor/Operator <br />The applicant requests authorization for the following discharge type(s). <br />□Mine (pit) dewatering: includes any water, such as groundwater, seepage, and stormwater (precipitation and surface <br />runoff), that is impounded or that collects in the mine pit (surface or underground workings) and is pumped, drained, or <br />otherwise removed from the mine through the efforts of the mine operator. In addition, for construction sand and gravel <br />facilities and industrial sand facilities only, mine dewatering includes wet pit overflow caused solely by direct rainfall <br />and/or groundwater seepage; <br />□Process generated wastewater: includes any wastewater used in slurry transport of mined materials, air emissions <br />control, and processing exclusive to mining. <br />□Water used in processing the mined commodity: includes water from washing, sorting, screening, crushing, <br />classifying, etc. <br />□Stormwater runoff, comingled with the above listed wastewaters before the discharge point. <br />□Stormwater runoff (not comingled with the above listed wastewaters) from facility pollutant sources: <br />includes runoff from stockpiles, disturbed areas, roads, maintenance areas, etc.; asphalt batch plants (SIC code 2951); <br />concrete batch plants (SIC code 3273); or asphalt and concrete recycling activities conducted at the facility. <br />Note: the following discharge types are not eligible for coverage under CDPS General Permit COG500000: <br />Stormwater discharges associated with construction activity that disturbs one acre or more; <br />Process water discharges from asphalt batch plants (resulting from the production of asphalt concrete); <br />Process water discharges from concrete batch plants, including drum and truck wash water (concrete wash <br />out); <br />Stormwater and process water discharges from placer mining industrial activities (SIC Major Group 10). <br />Process water discharges from the SIC codes identified in Appendix 1 of this application. <br />4 <br />4