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<br />These areas include: <br /> <br />- haul road and associated topsoil stockpiles; <br />- borrow area in the west pit for haul road surface; <br />- ancillary building and plant site; and <br />- associated topsoil stockpiles. <br />Topsoil has been stockpiled near all disturbed areas. <br />Stockpiles along the haul road have been recontoured and will be <br />seeded this summer (approximately 25.5 acres). Exhibit 1 <br />identifies the seed mixture applied. A map is provided (Exhibit 2) <br />and identifies areas disturbed and reclaimed. No fertilizers or <br />conditioners were applied to the soils. <br />All of our test plots were successful. Minor erosion occurred <br />due to heavy fall rains. A sediment trap was installed and <br />performed very well. Since then, we have readdressed some of these <br />areas, slightly altering runoff patterns that should assist as <br />erosion control. 1990 activities include the disturbance of <br />approximately 262 acres of land. These areas will include: <br />- East Pit and associated waste rock dump; <br />- portion of the West Pit and associated waste rock dump; <br />- waste rock dump north of the ancillary building; <br />- tailings disposal site; and <br />- various associated topsoil stockpile areas. <br />Several open mine shafts were found at the mine site. The <br />shafts were backfilled. <br />Approximately 22,000 square feet were covered with concrete at <br />the ancillary building site. This included the lab building, <br />administration building, shop (change room and wareh~~use) and <br />aprons. <br />After the Rito Seco haul road crossing was installed, Chadwick <br />and Associates conducted an aquatic biological survey. The <br />conclusion of this survey revealed that no significant impacts <br />occurred and the stream remains healthy. <br />Groundwater was not encountered at the west pit borrow area or <br />the dry wash south of the plant site. <br />Surface flow gaging data will be provided under separate <br />cover. The down gradient gaging station was knocked down several <br />times by livestock and the stream diverted by beaver activity. The <br />gaging station was reinstalled 3/5/90. <br />