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<br />Equipment will include, but is not limited to, bulldozers with rippers, scrapers, backhoes, <br />water trucks and front-end loaders. Normally, tandem dump trucks with pups will haul clay to <br />the brick plant. <br />Dust generated during the stockpiling and hauling processes will be controlled effectively <br />by water spraying. Disturbed azea runoff water from the exisEiog-~vater~ pit or erosion <br />control dams will be used for dust suppression unless there is no available water onsite; then <br />RBC will purchase water from offsite. Additioualfy, calcium Ggnosultooate may be applied <br />as a road binder and dust palliative. The IignosuUonate will be applied as a liquid additive <br />duriag water spraying of the road. The lignosulfouate will be diluted with water and <br />applied at the rate of 0.25 to 0.5 bulk gallons per square yard and worked into the upper 1 <br />to 6 inches of the road base. Ligoosullooate regenerates with water spraying for <br />approximately 2 to 3 years. <br />In order to prevent undisturbed area runoff water from <br />collecting in the mining azea, small diversion ditches will be created to carry the water around <br />the working azea and late return the water to the primary drainage course. Disturbed area <br />runoff water is controlled by berms and either retained in the disturbed area or diverted to <br />erosion coetrol dams in accordance with the Stormwater Management Plau. If water does <br />collect in the pits during periods of heavy precipitation, it will be pumped back into the normal <br />drainage system following a suitable settling period. <br />Mining Timetable. The following table is based on a projection of product demand. <br />Any economic change from the norm can and will change the timetable estirrtates dramatically. <br />~_ Yeor~ ..._.,., <br />-)<A~:~~'~-1' 730 <br />P_ 1B '~'f <br />Draft Revision July 1999 <br />9 <br />