Laserfiche WebLink
EXHIBIT L <br />RECLAMATION COSTS <br />Since mining will occur contemporaneously with reclamation, the largest disturbance at any one <br />time will be 10 acres. The first worst case reclamation phase will be at the end of mining in Pit 1. <br />An 800 foot wide highwall will need to be backfilled from 1.5H:1 V to 3H:1 V. The pit slopes, pit <br />floor, and the facilities area will need to be topsoiled and revegetated. <br />The operation will be limited to an unreclaimed highwall of 800 feet wide by 50 feet tall. Mining in <br />the furthest eastern edges of Pit 1 and Pit 2 may generate taller highwalls, but this will be <br />determined by the full extent of the deposit, which will only be fully defined as mining progresses. <br />Topsoiling is based on the average of 6-12 inches of topsoil replacement, which is 9 inches <br />The bond for the worst case reclamation scenario is broken out below and summarized in Table L- <br />1. Earthwork <br />Area requiring backfilling <br />800 feet of highwall to be backfilled to a height of 50 feet from 1.5H:1 V to 3H:1 V. <br />1,875 square foot backfill cross section across 800 feet = 55,555 CY <br />Area needingtopsoiling_ <br />Maximum disturbed area will be 10 acres at any one time. <br />9 inches of topsoil over 10 acres = 12,100 CY <br />Area needing soil preparation, reseeding, mulching <br />Topsoiled area = 10.0 acres <br />Phase I cost calculations and bond total can be found in Table L-1. <br />Rincon Materials L-1 Greg lcwkki and Associates, PLIA <br />February 2020 <br />