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NE WMON T RECEIVED Newmont Paining Corporation <br /> 6363 South Fiddler's Green Circle,Suite 800 <br /> Greenwood Village,CO 80111 <br /> t-IDEC 0 5 2016 F 719-689-3254 <br /> v,w*ne irriont com <br /> DNISION OF RECLAMATION <br /> MINING AND SAFETY <br /> SENT CERTIFIED, RETURN RECEIPT REQUESTED <br /> 7015-1660-0000-0779-8164 <br /> December 1, 2016 <br /> Mr. Timothy Cazier, P.E. <br /> Environmental Protection Specialist <br /> Colorado Department of Natural Resources <br /> Division of Reclamation, Mining and Safety <br /> Office of Mined Land Reclamation <br /> 1313 Sherman Street, Room 215 <br /> Denver, Colorado 80203 <br /> Re: Permit No. M-1980-244; Cripple Creek & Victor Gold Mining Company ("CC&V"); <br /> Cresson Project; — Response to DRMS Technical Revision (TR-81) Secondary Adequacy <br /> Review for High Grade Mill Vat Leach Containment. <br /> Dear Mr. Cazier: <br /> Following the Division of Reclamation, Mining and Safety's(DRMS)November 18, 2016 letter <br /> for additional adequacy review comments of technical revision TR-81, please see CC&V's <br /> response to comments in bold and DRMS comments in italics. <br /> Comment 1: The Operator has represented the capacity of the existing secondary <br /> containment structure as 17,039.262 cubic feet. The Division disagrees. Based on <br /> information provided in the submittal, the Division has calculated the existing capacity <br /> as 13,797 cubic feet. This was determined by subtracting the areas consumed by the <br /> "intrusions" located below the height of the containment wall. Based upon site <br /> observations, the Division estimates the height of the eight vat leach tank foundations at <br /> 2.5 feet, or the same elevation as the crest of the existing containment wall. <br /> Response 1: CC&V agrees with the Division that the existing available capacity is <br /> 13,797 W. <br /> Comment 2: The Operator's response indicated an upset condition might not be <br /> discovered for four hours. However, the Operator's response did not include information <br /> regarding the maximum amount of time to shut down the leach circuit after an upset <br /> condition is discovered. Please provide the Division with the maximum time to shut down <br />