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stockpiles to complete the topsoil redistribution plan. Since stockpiled soil had rock fragments <br /> removed during stripping, the recovery from stockpiles is treated as 100%. The basic calculation <br /> of the topsoil required in a given zone is: <br /> Topsoil Needed = Zone Area (ac) * 43,560 `�u�.* Soil Thickness (in ). <br /> 12��t * 27 ft3 yd3 <br /> The size of the stockpiles is determined via detailed surveys conducted on site. All soil thicknesses <br /> are designed to the nearest inch, since this is the practical measurement limit for the scale of <br /> equipment used at the New Horizon Mine. <br /> North of BB Road/West of 2700 Road <br /> Several areas are remaining to be topsoiled north of BB Road and West of 2700 Road. One area <br /> will be reclaimed to Prime Farmland and the other areas will be reclaimed to irrigated and dryland <br /> pasture. All areas will have approximately 24 inches of Bench 1 placed prior to topsoil <br /> replacement. Please see Map 2.05.4-4 which delineates currently reclaimed areas, unreclaimed <br /> areas, and the prime farmland area, and Table 2.05.4(2)(d)-4 for the overall topsoil balance for <br /> these remaining areas. <br /> Table 2.05.4 2 d -4 Topsoil Balance North of BB & West of 2700 Road <br /> Area Area Available Stockpiled <br /> (acres) Thickness Topsoil' <br /> (inches) <br /> Non Prime Farmland Areas 83.80 14 153,900 <br /> Prime Farmland Area 2.83 34 13,266 <br /> Total 167,166 <br /> Stockpiled topsoil values are from Table 2.05.4(2)(d)-2 Topsoil Stockpile Inventory <br /> Topsoil piles D, H, and C south of the facilities area will be utilized on the remaining non-prime <br /> farmland areas (Johnson Property), and to mitigate differential settling on irrigated pasture areas <br /> (Benson West and Lloyd properties) when necessary. Please see Section 12 below for further <br /> discussion on differential settling management plan. <br /> Approximately 3,000 cubic yards of topsoil pile C will be taken to an ERMR property outside of <br /> the permit boundary. New Horizon currently has an excess of remaining topsoil necessary to <br /> complete reclamation for the remaining areas to be topsoiled, and this extra topsoil is will be a <br /> long term benefit to an adjacent ERMR property. <br /> Section 2.05.4(2)(d) Page 12 July 2020 (MR-115) <br />