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COLORADO DEPARTMENT OF PUBLIC HEALTH & ENVIRONMENT -Water Quality Control Division <br />Rationale -Page 4 Permit No. COR-040000 <br />!V. STORMWATER DISCHARGES ASSOCIATED WITH MINING OPERATIONS (cont.) <br />3. Inactive mine sites where, in conformance with the Voluntary Cleanup and Redevelopment Act, (CRS 25-16- <br />303), mine-waste remediation projects are undertaken. In this case, the SWMP would be prepared, relying in <br />part on information contained in the Voluntary Cleanup Plan. Once the Voluntary Cleanup Plan is approved <br />by the Hazardous Materials and Waste Management Division, the owner, or third party with permission of the <br />owner, would submit the completed permit application. After the permit certification is issued, stormwater <br />discharges from the remediation project would be authorized. Certification under this permit would be <br />terminated when the termination criteria and other conditions listed at Pan I.F of the permit are met. <br />C. Tvnes of Activities NOT Covered <br />This permit does not authorize stormwater discharges from other types of regulated industrial activities. Other <br />types of regulated industrial activities that require stormwater discharge permits pursuant to different sections of the <br />regulations [-5 CCR 1002-2 Section 6.4.2(S)(b)(!-ii,iv-xi)j are covered under separate genera! permits. <br />Zhis permit also does not authorize the discharge of process water or mine drainage. Applications for process <br />water or mine drainage discharge permits can be obtained from the Permits and Enforcement Section of the Water <br />Quality Control Division at the address listed in Part LA.3 of the permit. Stormwater which mixes with process <br />water or mine drainage prior to discharge is considered to be process water or mine drainage. <br />Table 1 -Mineral Industry Stormwater Permit Coverage <br />SIC General <br />Code Industry Type Permit Note <br />10 Meta[ Mining and Milling COR-040000 (I) <br />12 Coa[ Mining- COG-850000 (2) <br />13 Oit and Gas Extraction (including Oil-shale operatons) COR-010000 (3) <br />14 Mining and Quarrying of Sand & Gravel (and other COG-500000 (4) <br /> Nonmetallic Minerals Except Fuels) <br />10, 12 Inactive Metal (and Coal) Mines COR-040000 (5) <br />-- Mine-waste Remediation COR-040000 (6) <br />Notes: <br />(1) This permit, Colorado General Stormwater Discharge Permit for Metal Mining, number COR- <br />040000. <br />(2) Stormwater discharges from coal mines with surface runoff only are covered by general permit COG- <br />850000. Coverage for stormwater discharges from coal mines with discharge sources which are <br />authorized under irutividual CDPS permits, is provided by this permit, Colorado Genera[ Stormwater <br />Discharge Permit number COR-040000. <br />(3) Stormwater discharges from oil and gas extraction (including oil-shale operations) are covered under <br />the Colorado General Stormwater Discharge Permit for Light Industry, number COR-010000. <br />(4) Stormwater discharges from active and inactive sand, gravel and other non-metallic quarrying and <br />mining operations are covered under Colorado General Stormwater Discharge Permit number COG- <br />500000. , <br />(S) Stormwater discharges from inactive metal and coal mines are covered under this pesmit, Colorado <br />General Stormwater Discharge Permit number COR-040000. <br />(6) Stormwarer discharges from mine-waste remediation operarions are covered under this permit, <br />Colorado Genera[ Stormwater Discharge Permit number COR-040000. <br />