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United States Department of Agriculture a MRCS Natural Resources Conservation Service 970-264-5516-OFFICE Pagosa Springs Field Office 970-264-4660-FAX P.O. Box 419 344 Hwy 84 www.co.nres.usda.gov Pagosa Springs, CO 81147 jerry.archuleta@co.usda.gov Date: 12/04/01 Dennis Walker 1231 N.W. Business Hwy 36 Hamilton, Missouri 64644 The following information is provided at your request in order to meet the reclamation plan requirements of the "Colorado Mined Reclamation Act" and subsequent )-ales and regulations of the Colorado Mined Land Reclamation Board. This information is for the reclamation of the proposed gravel pit in the S W %< of Sec 25, T35N, R2 W. A. Initial Excavation and Topsoilin2: Topsoil shall be stockpiled during the extraction phase of the project and stored in places to minimize erosion and disturbance by ongoing mining operations. Stockpiled topsoil shall be revegetated to reduce soil erosion by wind and water if stored For a prolonged period of time. Diversion ditches, silt fence, straw bales, and/or sediment basins should be used to control surface runoff and reduce soil erosion where needed. Upon completion, topsoil shall be replaced to a depth of about 6 to 12 inches to cover above ground disturbed areas and provided a proper medium for revegetation. Spreading shal] not be done when the ground or topsoil is frozen, excessively wet or otherwise in a condition detrimental to the work. After placement of topsoil is complete, the surface shall be finished to a reasonably smooth final grade. Slopes shall not be steeper than 4:1 and in azeas that will be crossed by machinery slopes should be between 6:1 to 8:1. All disturbed azeas shall be revegetated. Since ground water will be intercepted during excavation and will need to be drained from the gravel pit during mining activities it is important that sediment is allowed to settle out before water is returned to the San Juan River. It maybe necessary to construct a small settling pond at the south end of the pit. A drainase ditch could be constructed .o drain water from the pit into the set±Lng pond before it is dischc_ <::~ intc the river. The pond that will remain after the gravel operation is completed should be constructed with an irregular shape to improve its value for wildlife. A small island could also be constructed in the middle of the pond to provide a nesting site for waterfowl. B. Revegetation: 1.} Seedbed Preparation: Seedbed shall be firm and free ofweeds and other non-desirable vegetation. In azeas were there is excessive compaction tillage, such as chiseling and disking, shall be done to break up the compaction and then harrowed down. If seedbed is soft after tillage operations allow 2 to 4 weeks following the last operation for the soil to settle and firm up. The Natural Resource Conservation Service works in partnership with the American People to wnserve antl sustain natural resources on private lands. An Equal Opportunity Provider and Employer.