APPCOR12117 - Laserfiche WebLink

Home Browse Search

• No requirements were placed upon Energy Fuels to conduct tests on overburden to determine the acid-formin<: or toxic-producing properties .• however, subsequent tests ha:•e .been conducted in adjacent strata through the same geolocic • strata: Results of these analysts reveal no acid or tox_c- producing agents present in any of the strata examined. 2. Topsoiling A brief description has already been given on Y;o:a the topsoil :•ias salvaged prior to stripping of the coal. Topsoil eras reapplied usii:g tractors with the topsoil be?.^.g pushed uphill until a uniform ti:icF;Hess was achieved. Si^ce the spoil grading was done with Lra:oler tractors, a fairl:• rough boundary existed between the topsoil and tl:e leveler spoil_ The approximate depth of surface and subsurface topsoil .that was applied was two feet, with topsoil in s.._~e depressions on the area being deposited to a greater dep==. the topsoil was stockpiled approximately 18 months prior :.o reapplication. The soil series covering this site prior to miming has been identified as a Buckley Silty Clay Loam. Accorcing to the Soil Survey Interpretations obtained from the Soi'_ Conservation Service, this soil is unsuited for use as a topsoil. Potential uses for reseeding are classi°ied as poor to very poor primarily due to the high clay content. Soils with such high percentages of clays commonly have lcw permeability rates, high shrink-swell potentials and rer.4er seedlings vulnerable to mortality due to the frost-hea:•i-3 action of the soils. Final leveling of the topsoil was done by a motorgrader to achieve a uniform seedbed prior to reseeding. 3. Revegetation Following the leveling of the topsoil, the area • was seeded with a mixture recommended by the Soil Conser:•- ation Service. The mixture that was recommended to Enercy Fuels was: Seed Mixture Species Lbs/Acre Amur Intermediate S~Theatgrass 10 Manchar Smooth IIrome 10 • Ranger Alfalfa 2 Total ~ lbs. r-F,;,; ;