Laserfiche WebLink
MINING PLAN <br /> Species Pounds/acre Pure Live Seed <br /> Intermediate Wheatgrass 10 <br /> Pubescent Wheatgrass 10 <br /> Sand Bluestem or Sand Dropseed 10 (if Bluestem) OR 0.25 (if Dropseed) <br /> Blue Grama 1 ` <br /> TOTAL 31 (if Bluestem) OR 21.25 (if Dropseed) <br /> (BROADCAST SEEDING ONLY) <br /> 0 VERB URDEN REMO VAL - Based on what was shown in drill logs, the distinction <br /> between soil and overburden is expected to be rather vague in the area that was once reservoir. <br /> Further to the west, in the existing mining area, there is usually a good distinction between soil and <br /> overburden. There overburden is generally a very fine, slightly darker sand than the sand deposit <br /> itself, but not as dark as the topsoils. Sometimes the overburden is of sufficient quality that it can be <br /> considered marketable sand,but often that is not the case. <br /> In the reservoir area it is likely that this original overburden has been heavily infiltrated with <br /> fines from the soil above. Those fines were carried to greater depth by seepage from the reservoir <br /> into the underlying sands. Although partial sealing of the reservoir bottom probably occurred fairly <br /> quickly, some infiltration undoubtedly still occurred and that carried some fines into deeper layers of <br /> the unconsolidated sand. <br /> Unless there is a similar distinction between soil and overburden in the reservoir area, it is <br /> likely that the overburden will be removed along with the soil. If infiltration of fines actually <br /> occurred it is likely that what would normally be overburden and of limited value as a growth <br /> medium will contain more fines and organic matter in the area of the reservoir. In that case the <br /> overburden itself,when mixed with the overlying soils, would be a suitable growth medium and <br /> could be replaced as such. <br /> In the event an overburden layer is found that is not suitable as a growth medium (similar to <br /> the overburden encountered further to the west)then that will be stockpiled separate from the soil ,5, <br /> and replaced on the final surface prior to placement of the topsoil. <br /> ACTUAL MINING OF THE SAND - Mining will be done in very much the same way as it <br /> has been done since the start of mining on the east side of Academy Boulevard. Basically, a front end <br /> loader will remove the material and place it in the hopper that feeds the conveyor system. The <br /> Daniels Sand Pit Amendment (2008) Exhibit D Page 14 of 28 <br />