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COLORADO DEPARTMENT OF PUBLIC HEALTH & ENVIRONMENT -Water Quality Control Division <br />Rationale -Page 4 Permit No. COR-040000 <br />IV. STORMWATER DISCHARGES ASSOCIATED WITH MINING OPERATIONS (cont.) <br />3. Inactive mine sires 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 coraained 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:cetzification is issued, Stormwater <br />discharges from the remediation project would be authorized. Certificaiion under this permit would be <br />terminated when the termination criteria and other conditions listed at Part I.F of the permit are met. <br />C. Wipes 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)(I-ii,iv-xi)j are covered under separate general permits. <br />This 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 I.A.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 />Code Industry Type Permit Note <br />10 Metal Mining and Milling COR-040000 (1) <br />I2 Coal Mining COG-850000 (2) <br />13 Oil and Gas Etraction (including Oil-shale operations) COR-010000 (3) <br />14 Mining and Quarrying of Sand & Gravel (and other COG-500000 (4) <br /> Nonmetallic Minerals Except Fuels) <br />10, I2 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 individual CDPS permits, is provided by this permit, Colorado General Stormwater <br />Discharge Permit number COR-040000. <br />(3) Stormwater discharges from oil and gas extraction (including oil-shale operations) are co -ed under <br />the Colorado General Stormwater Discharge Permit for Light Industry, number COR-OIOL ?. <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 permit, Colorado <br />General Stormwater Discharge Permit number COR-040000. <br />(6) Stormwater discharges from mine-waste remediation operations are covered under this permit, <br />Colorado Genera[ Stormwater Discharge Permit number COR-040000. <br />