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r r. III IIIIIIIIIIIIIIII STATE OF COLORADO DIVISION OF MINERALS AND GEOLOGY FROM: Christine E. Johnston RE: Status of Stipulations The following is the list of stipulations for the Red Canyon Mine. Stipulation Nos. 1-9 were added during the first permit issuance. Stipulation No. 10 was added during the 1988 permit renewal, and Stipulation No. 11 was added during the 1993 permit renewal onlyStipulation Nos. 6 and 11 are active. List of Stipulations Depa«mem of Natural Resources ~~oF'oo~R H' 1 31 3 Sherman SL, Room 21 5 Denver, CO 80103 ~.~~~ Phone: 13031 866-}567 ' ~e~c ,' FAX: X3031 872-8106 Roy Romer DATE: June 15, 1993 c°"efnOf Michael B. Lung Divi,iun DueUOr T0: Stipulation Tracking File, d Canyon Mine; File No. C-81-034 Stipulation No. 1 WITHIN 30 DAYS OF ISSUANCE OF THE PROPOSED DECISION, THE PERMITTEE WILL SUBMIT POND SIZING CALCULATIONS FOR INCORPORATION INTO THE PERMIT APPLICATION. STORAGE CAPACITY FOR SEDIMENT AND WATER PUMPED FROM THE MINE MUST BE ADDRESSED. IF THE POND IS DETERMINED TO BE NOT IN COMPLIANCE WITH THE REGULATIONS, IT WILL BE UPGRADED AS NECESSARY WITHIN 3 MONTHS OF PERMIT ISSUANCE, AND PRIOR TO RESUMPTION OF ACTIVE MINING STATUS AT RED CANYON. STATUS: Complied with October 11, 1984. Stipulation No. 2 WITHIN 90 DAYS OF PERMIT ISSUANCE, THE PERMITTEE WILL SUBMIT A REVISED STREAM CHANNEL RECONSTRUCTION PLAN TO THE DIVISION FOR REVIEW. IN ADDITION TO THE INFORMATION PREVIOUSLY SUBMITTED, THE STREAM CHANNEL RECONSTRUCTION PLAN SHALL IDENTIFY THE WIDTH OF THE NATURAL STREAM CHANNEL DOWNSTREAM OF THE DISTURBANCE, THE MAXIMUM WIDTH OF THE RECONSTRUCTED CHANNEL, THE DEPTH OF THE RECONSTRUCTED CHANNEL, AND THE NATURE OF THE BED AND BANK MATERIAL TO BE USED FOR CHANNEL RECONSTRUCTION. THE APPLICANT SHOULD PROVIDE CALCULATIONS FOR THE DESIGN EVENT AND FOR FLOW VELOCITIES IN BOTH THE 5 FT. WIDE AND 10 FT. WIDE CHANNEL SEGMENTS. THE APPLICANT WILL IDENTIFY STREAM SEGMENTS WHERE RIPRAP OR OTHER EROSION PROTECTION WILL BE USED. A STREAM PROFILE SHOULD BE SUBMITTED THROUGH THE ENTIRE LENGTH OF THE AREA PROPOSED FOR RECONSTRUCTION SHOWING THE ORIGINAL SLOPE AND THE PROPOSED RECONSTRUCTED SLOPE. IF RIPRAP IS USED, THE PLAN WILL INCLUDE A DISCUSSION CONCERNING THE SIZING, GRADATION, AND PLACEMENT OF RIPRAP. IN ADDITION, IT WILL DISCUSS HOW THE DURABILITY OF THE MATERIAL USED FOR RIPRAP WILL BE DETERMINED. STATUS: Complied with August 21, 1984.