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..c <br />` ~~~ unitedstetes Soil 9595 Nelson Road, Box D <br />Department of Conservation Longmont, CO 80501 <br />Agriculture Service 776-4034 <br />III IIIIIIIIIIIII III <br />999 <br />s.., loot, Bad Boy Stone Mine Reclamation <br />Data: December 18, 1992 <br />~ECEf 1l,~ ~ <br />TO: Flle COEB: <br />John Vasquez DEC 2 <br />145 East 9th Avenue 3 ~99~ <br />Longmont, CO 80501 <br />Dear John: MINERALSd~c <br />~,_~~ <br />The following are my comments and recommendations regarding your <br />request for assistance in developing a reclamation plan. <br />A site visit was made at your request on Wednesday, December 9, 1992. <br />The purpose of the site visit was to conduct a vegetative inventory and to <br />review and assess areas disturbed during previous mining activities. <br />Snow accumulation on the ground surface made it impossible to conduct a <br />vegetative inventory and difficult to determine the extent of previous <br />mining activities. <br />Based on my observations, reestablishing vegetative cover in this hostile <br />environment may be difficult. This site is on a ridgetop, its slopes are <br />relatively steep and the area is subjected to high and frequest winds. <br />Soils found on this site consist mainly of. Pinata-Rock outcrop complex <br />(PrF), and Rock outcrop (Ro). These soils have very limited topsoil to <br />begin with and it appears very little, if any, topsoil has been salvaged <br />from previous mining activities. <br />Prior to starting any new mining activity to undisturbed areas, topsoil <br />needs to be stripped and stockpiled along with any small rock fragments <br />and fines left during the m ining process. Cut slopes should be no steeper <br />than 3:1. Steep, vertical banks should be avoided. After mining, the <br />stockpiles should be evenly spread over the disturbed area. <br />Before seeding, soil testing is recommended to determine if nutrients need <br />to be added to the soil. If soil testing is not done, I recommend <br />incorporating a minimum 50 pounds of nitrogen (N) and 50 pounds of <br />phosphate (P205) per acre into the soil. <br />The seedbed should be well settled and firm, yet friable enough to get <br />the seed into the soil. The grass seed should be hand broadcast and <br />spread uniformly over the soil. The seed should then be raked into the <br />soil to a 1 /Z - 314 inch depth. Grass seeding should be completed <br />between November 1st and April 30th. Grasses planted should consist of <br />species found native to the area (See attached CO-ECS-7 for recommended <br />grasses and seeding rates). Once the area has been seeded, native, <br />weed-free grass hay should then be spread over the area at the rate of <br />3000-4000 pounds per acre. Crimp the hay into the soil with a spade or <br />0 <br /> <br />