2011-02-10_PERMIT FILE - C1981012A (5)

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Samples were taken to a depth of 18 inches in July 1986. the • Division requested additional samples of waste, topsoil borr ow and undisturbed topsoil to be taken to a depth of 36 inches in 1 foot increments. Sample locations 1 through 10 were taken in July 1986; sanq~le locations 11 through 19 were taken in December 1986. Sample locations 1, 2, 17, 18 and 19 were taken at the Golden Eagle Mine; the rena;n;r~. samples were taken at the New Elk Mine (see Map 9). Samples 5, 12 and 13 were taken from the topsoil borrow area. Sample 5 was taken to a depth of 1.5 feet and exhibited a relatively high SAR for undisturbed soil. Samples 12 and 13 have no apparent limiting factors. Zhe sandy clay loam texture of 5 indicates SAR should not pose significant problems in revegetation. 'Ihe rerai*+;.~ undisturbed samples are generally gain to good for direct seeding and/or topsoil salvage. 'ihe topsoil pile at the New Elk (Sanq~le 9) has a relatively high pH of 8.8. Waste samples have high SAR's. 'ihe pred~m~r,a.+t textural classification is clay loam. 'Ihe SAR effects on revegetation will be • mitigated as WFC plans to topsoil these areas. A pH of 4.6 was reported in the 3 foot depth increment at sariple location 10. WEC suspects slight acid formation results fran oxidation of gal . 2.04.10 Vegetation Information A vegetation map has been prepared which shows the area which is affected by the New Elk Mine surface facilities and additional area which will be disturbed within the permit term. 'Ihe various plant crnnamities are delineated based on aerial mapping and field mapping which has been completed by Uniscale ~rporation. Uniscale has conducted tc.D extensive surveys of the areas around the surface facilities to determine species ceng~osition, cover, productivity, and woody plant density in 1980 and I98I. Map 10, Vegetation, has been prepared which delineates each plant community. • 2.04-42 (Revised 03/23/87) /~~1 1r 1~I~~