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Soil Thickness <br />• The thickness of soil replaced during 1997 was verified by sampling. Sample sites for the New <br />Horizon 2 minim area were selected systematically utilizuig a 467 foot by 467 foot grid pattern. <br />Sites at New Horizon 2 were surveyed and staked in the field using a Geodimeter 510 total <br />swvey station. <br />A 2 ~/4 inch bucket auger was used at each site to excavate a pilot hole through the entire soil <br />strata. An abrupt boundary, defined by color and rock fragment content, typically occurred at <br />the soiVspoil interface. The replaced soil thicwiess was measured through the pilot hole <br />immediately after encowitering the spoil. <br />Soil thiclaiess was determined at the 26 sites at NH2 sho~~m on Exhibit 97.5. Soil thickness <br />iiiorn~ation for each sample site is located on the map. <br />New Horizon 2 his ma~iy different soil thickness requirements as sho~~Rr on Exhibit 97.7, which <br />is 2.05.4-4 from the current perniit. <br />Soil Salvage and Storage <br />All suitable soil has been salvaged ahead of Honing at New Horizon 2. Approximately 93,168 <br />(LIFT 2), 20,090 (LIFT 1), and 42,387 (MIXED) cubic. yards of soil are stored ui stockpiles at <br />the end of 1997 as shovwi on Exhibit 97.9 (1997 Topsoil Balance Map). The soils were <br />separately stockpiled by soil types as specified by our permit. <br />• C ver ro <br />All topsoil stockpiles leave been planted with the approved cover crop seed mixtw•e. <br />Weed and Pest Control Activities <br />Weed control was carried out in the stunmer and fall months of 1997. Target species included <br />Russian Knapweed, Canada Thistle, Sun Flower, White Top and Field Bindweed. Spot spaying <br />was done at NHl & NH2, see Exhibit 97.1 & 97.4. The treated sites were small and random. <br />To small to plot on a map accurately. There was no Pest Control measures implemented in 1997 <br />because there was no need at this time. <br />• (r. \data\wpdata\97recrepo.doc) 2 <br />