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NE W M O N T Newmont Mining Corporation <br /> 6363 South Fiddler's Green Circle Suite 800 <br /> Greenwood Village,CO 80111 <br /> T 719-689-2977 <br /> F 719-689-3254 <br /> www newmont.0%tjvry <br /> AUG '�2 20�6 <br /> SENT CERTIFIED, RETURN RECEIPT REQUESTED pMAT�4N <br /> 7015-1660-0000-0779-7228 OWSMtN,N�Rg, <br /> 18 August 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"); Cresson <br /> Project - Addendum to TR#80 —Temporary fresh water line construction in Grassy Valley <br /> Dear Mr. Cazier: <br /> Newmont Mining Corporation (Newmont) hereby submits the following Addendum to Technical <br /> Revision JR) #80 that proposes the installation of an additional temporary fresh water supply <br /> line to provide water to the High Grade Mill (HGM). The design for the additional temporary <br /> fresh water line tie-in in Grassy Valley was developed in response to a failure of a fresh water <br /> pipeline identified by Newmont on May 23, 2016. <br /> Pipe Route <br /> For your reference please see an overview of the proposed pipeline in Figure 1: <br /> • The fresh water source will originate from the Grassy Valley pipeline; <br /> • Temporary pipeline tie-in to the Grassy Valley pipeline will occur at the location <br /> indicated by the red star in Figure 1 <br /> • Water will be conveyed in the temporary pipeline using 1,200 feet of 10" High Density <br /> Polyethylene (HDPE) pipe; and <br /> • Water will be conveyed through a portable water fill stand to allow water to be loaded <br /> into the water truck and hauled to the Mill. <br /> Warranty Estimate <br /> CC&V used the 2016 RS Means costs for calculating the increase in reclamation cost. The RS <br /> Means estimate for "Utility removal, pipe, sewer/water, 12' diameter remove,"(2016 RSMeans <br /> #02 41 13.23.3000) is $7.79 per linear foot for a total of $9,348.00. A 22% contingency was <br /> added to the RS Means demolition cost $2,056.56. The RS Means "B-20" crew was used at 2 <br /> hours labor (based off of Davis-Bacon wage rates) resulting in a total of $373.76 for removal of <br /> the water fill station. The project in whole will increase the reclamation costs by a total of <br /> $11,778.32. <br /> pig <br />