2022-11-18_PERMIT FILE - M2022048 (5)

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MINING PLAN AND TIMETABLE EXHIBIT D(CONT) SOIL UNIT NAME APPROX DEPT OF DEPTH OF UNIT AREA TOPSOIL, OVERBURDEN (AC) (INCHES) (FEET) Aquolls and Aquents, gravelly substra- 3 256.7 12 3.5 turn Ellicott-Ellicott sandy-skeletal com- 10 plex, 0 to 3 percent slopes, rarely 56.8 12 3.5 flooded Dacono clay loam, 0 to 1 percent 21 103.0 12 4.0 slopes 22 Dacono clay loam, 1 to 3 percent 6.3 12 3.0 slopes 39 Nunn loam, 0 to 1 percent slopes 7.5 12 0.0 41 Nunn clay loam, 0 to 1 percent slopes 4.6 12 5.0 68 Ustic Torriorthents, moderately steep 37.3 3 0.0 85 Water 0.6 NA NA Based on the soils report and on site observations there are sufficient quantities of soil available to reclaim the disturbed lands to their present condition. The excess topsoil and over- burden will be used on site for reclamation or removed from the site. The soils on the permit area that will be salvaged and re- placed should be capable of growing vegetation consistent with what is required by the Reclamation Plan. Enough topsoil will be retained to place an average of 10-12 inches on the areas to be revegetated. As each area is stripped, L.G. Everist will deter- mine how much soil will be needed to reclaim the area and it will be stockpiled for use in reclamation. Over the life of the mine, an estimated 588, 400 yards of topsoil will be stripped from the mined area but, a minimum of 60, 200 yards will be retained for resoiling the areas to be revegetated. In addition, there is from 0 to 3 feet of overburden on most of the site. Much of this overburden will be retained and used to backfill the reservoir slopes and used during slurry wall construction or removed from the site. The topsoil and overburden stockpiles will be located around the excavation, typical pile locations are shown on the EXHIBITC-1 - MININGPLANMAP. If the soil stockpiles remain undisturbed for more than one year, a cover crop of the approved seed mix, at the rate L.G. EVERIST, INC-WEST FARM RESERVOIRS November 2022 8