Laserfiche WebLink
25 -foot setback around the edges, the actual total effective area to be mined is <br />reduced to approximately 123.5 acres. <br />f) The material we are pursuing is a calcareous sand/gravel layer <br />approximately 20 feet thick. This material will be used to rebuild or improve <br />road surfaces in the southern reaches of Yuma County. In the event that the <br />calcareous material needs to be processed, it will be done with a portable <br />crusher screen plant. A vibratory packer will be used on the road surface <br />where and whenever possible. The material found in the walls will be mined <br />to a level approximately 10 feet above the drainage channel. <br />i. The overburden/topsoil is in a layer of <br />approximately 10 foot thick at the peak of the canyon and becomes <br />thinner on the steeper slopes. This is the calcareous loam noted in <br />the Natural Resources description of the site. This will be hard to <br />reclaim plant cover, but not impossible to do so. By following the <br />NRCS recommendations and working closely with the range and soil <br />technicians, we expect to be successful. <br />ii. We have not determined the nature of the material <br />in the bottom of the site. Observance of surrounding erosion of <br />other canyons, it appears to be a clay load of light reddish color. <br />g) Primary commodities of rock calcareous sand and gravel will be used for <br />road building and repair material. Secondary commodities of rocky <br />calcareous sandy clay will be used as fill and barrow base. There will be no <br />shop, plant, or other facilities permanently located at the mine site. <br />Equipment will be maintained at the site when mining is occurring. This will <br />be on a periodic basis since material will only be mined on an as need basis. <br />The equipment used to mine the gravel will be primarily a scraper, dozer, <br />front -end loader, and trucks. Fuel and equipment will be outside of the pit <br />area on the permitted acres. Equipment will be serviced out of the mining <br />area. Re- fueling of equipment will occur on site. <br />h) There will be no incidental products produced in this pit. All materials <br />will be utilized as road base and gravel. <br />i) No explosives will be used in our operation. A D -8 dozer with ripper <br />and/or excavator with a pavement breaker will reduce the rock to manageable <br />size. <br />There is also a softer calcareous rock that poses no problem in removal. A <br />geotechnical stability statement or exhibit will not be required. <br />/z <br />