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Page 3 Permit No. COG-500000 PARTI A. COVERAGE UNDER THIS PERMIT 1. Industries Covered Under this general permit, the following types of facilities may be granted authorization to discharge [tested process- generated wastewaters and/or stormwater runoff into waters of the state of Colorado: Facilities engaged in the mining and processing of sand and gravel (including rock or stone used as aggregate), sad mining end quarrying of other nonmetallic minerals (except fuels or graphite), as described by the Standard Industrial Classification (SIC) Code 14, and asphalt end concrete batch plants located at facilities covered uader.SiC code 14. a. Stotmwatrr vs. Process water: When stormwater mixes with process water. the process water limitations (Part I.B of the permit) apply to the discharge of that mixed water. Process waters from these facilities are subject to effluent limitations under 40 CFR 436. b. Process Water: For purposes of this permit, process generated wastewaters include 1) Product wash waters; 2) Maintenance/equipment wash waters; 3) Transport waters; 4) Scrubber waters (crushers or classifiers); 5) Mine dewatering (groundwater and/or tuaoff); 6) Other process water es determined by the permit issuing authority; 'n Stormwater runoff from mine or processing areas; end 8) Stormwater runoff which mixes with process generated wastewater prior to sampling. c. Stormwata: The stormwater section (Part I.C of the permit) is intended to cover stormwarer ronoff from those portions of a nonmetallic minerals production operation that are not subject to effluent limitations under 40 CFR 436. 2. Dredee and Fill Ooerations This permit does not constitute authorization under 33 U.S.C. 1344 (Section 404 of the Clean Water Act) of any stream dredging or filling operations. Application Requirements 1n order to be considered eligible for authorization to discharge under the terms and conditions of this permit, the owner, operator, and/or authorized agent of any facility desiring to dischuge must submit, by letter or bend delivery, the discharge application form, available from the Water (?[rarity Control Division (the 'Division'), which generally requires the following information: a. Name, address, and descriptive location of the facility; b. Name of principal in charge of operation of the facility;