2009-12-21_GENERAL DOCUMENTS - M2002078 (5)

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1.0 PROJECT DESCRIPTION Coulson Excavating Co., Inc. (CEC) proposes to mine sand and gravel from approximately 50 acres of a 132.63 acre parcel of land at the Stroh Pit. The raw sand and gravel will be transported due east to the adjoining Kirtright Pit (USR approved March 16, 1987) for processing. It is understood that importation of sand and gravel for processing at the Kirtright USR was not included in the 1987 USR. This application also includes amendment of the Kirtright USR to enable importation. 1.1 MINING PLAN Mining has been divided into two areas which are referred to as West pit (35 acres) and East pit (15 acres). There is a 1 00f gas pipeline easement that separates the East and West pits. The sand and gravel reserve occurs at approximately 6 -8ft below the ground surface under a layer of topsoil, silt, fine sand and clay. This top layer is commonly referred to as overburden. Overburden will be stripped in approximately 5 acre portions to unearth the sand and gravel below. The initial volume of overburden will be stockpiled around the south west corner of the west pit to provide screening from the Thompson River Ranch subdivision. Mining then will begin in the south west corner of the west pit and proceed north. Reclamation will occur concurrently wherever possible, which means overburden will be backfilled. directly into the mined out hole during the stripping process. Following mining of the west pit, mining will begin in the south west corner of the east pit. Similarly, the initial overburden volume will be used to construct a berm along the south side of the east pit. Mining will then proceed to the north. It should be noted that the mine plan could vary'due to unforeseen site conditions, however it is expected to generally follow the plan identified herein. 1.2 RECLAMATION PLAN The west pit will be reclaimed to leave a 28.4 acre lake and a portion of backfilled pit area south of the lake. The east pit will be reclaimed to leave a 10.5 acre lake and a portion of backfilled pit area south west of the lake. CEC will not build an earthen liner for the lakes and as such, groundwater will be allowed to fill the lakes. Final augmentation water to offset evaporative loss due to the lakes will come for either existing water rights for the property (Hillsborough Ditch) or other water rights owned or acquired by CEC. All slope grading and revegetation will be completed per rules and regulations of the Colorado Mined Land Reclamation Board. Stroh Pit USR Application Page 2 of 23