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COLORADO DEPARTMENT OF PUBL/C HEALTH & ENVIRONMENT -Water Quality Comrol Division <br />Rationale -Page 4 Permit No. COR-040000 <br />IV. 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 />pan on information contained in the Yoluntary Cleanup PG:n. 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, stonmvater <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 tnet. <br />C. Types of Activities NOT Covered <br />This permit does not authorize stormwater discharges from other types of regulated industrial activities. Other types <br />of regulated industrial activities that require stonnwater discharge permits pursuant to different sections of the <br />regulations [5 CCR 1002-61 Section 61.3(2) (e)(ii)(A-B,D-K)J are covered under separate general permits. <br />This pennir also does not authorize the discharge of process water or mine drainage. Applications for process water <br />or mine drainage discharge permits can be obtained from the Permits Unit of the Water Quality Control Division at <br />the address listed in Pan I.A.3 of the permit. Stonnwater which mires with process water or mine drainage prior to <br />discharge is considered to be process water or mine drainage. <br />Table 1 -Mineral Industry Stormwater Permit Coverage <br />SIC CeneraI <br />Code Industry Tvae Permit Note <br />]0 Metal Mining and Milling COR-040000 (I) <br />12 Coal Mining COG-850000 (2) <br />13 Oil and Gas Extraction (including Oil-shale operations) COR-070000 (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 pennir, Colorado General Stonnwater Discharge Permit for Metal Mining, number COR-040000. <br />(2) Stormwater discharges from coal mines with surface runoff only are covered by general pennir COG- <br />850000. Coverage for Stonnwater discharges from coal mines with discharge sources which are <br />authorized under individual CDPS permits, is provided by this permit, Colorado General Stonnwater <br />Discharge Permit number COR-040000. <br />(3) Stonnwater discharges from oil and gas extraction (including oil-shale operations) are covered under <br />the Colorado General Stonnwater Discharge Permit for Light Industry, number COR-010000. <br />(4) Stonnwater 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 />(5) Stonnwater discharges from inactive metal and coal mines are covered under this pennir, Colorado <br />General Stonnwater Discharge Permit number COR-040000. <br />(ti) Stonmwater discharges from mine-waste remediation operations are covered under this pennir, <br />Colorado General Stonnwater Discharge Permit number COR-040000. <br />