1990-01-09_REVISION - M1988112 (6)

Home Browse Search

'90 01 'P9 18:43 S 303 985 9947 EPF. GENVEP BATTLE MOUNTAIN RESOURCES, SAN LUIS PROJECT CMLR~ ADEQUACY LETTER RESPONSES Page 28 of 28 49. Clearly describe how topsoil will be transported and placed on the graded tailings and slopes of the embankments, for ppurposes of the cost estimate, we will assume that the topsoil will be placed by machinery. RESPONSE: Topsoil will be transported and placed on the graded tailings and slopes of the embankments using machinery. The cost estimates for this work were based upon the calculations far topsoil replacement presented on page L-5 of the approved permit. 5D. In order to grade the facility, it would be necessar;Y to allow tailings to dry so that equipment could work efficlenily. Please include the cost of dust control during the grading of the facility. Please provide an approximate square footage of the mil) facility for purposes of estimating its removal cost. RESPONSE: The costs for two 3,500 capacity water trucks to operate for six months is provided in revised Exhihit L. The square footage of the mill facility is included ised Exhibit L. 5.'. Pease include the costs of continued monitoring of the wel)s, piezometers and leak detectfon system (inc)uding water levels, obtaining, preparing and analyzing samples) for a period lof at least five years after site reciamatian is complete. Please Include the cost to remove the 48-inch culvert from the south embankment. 5c5v11NSE: The costs for monitoring for five years following site reclamation are included in revised Exhibit 1. The cost for removal of the 48-inch culvert is included in revised Exhibit L. The cost to deliver and place riprap in the collection pond upon site reciamatian should be included. ;tsPONSE: Riprap for the collection pond will be transported to the area during the initial years of the mining operation for storage until needed for final reclamation. A cost for placement of that riprap has been included in revised Exhibit L. 14