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EXHIBIT "D" MINING PLAN FOR TROUT CREEK PIT Mining operations for area "A" as shown on the Mining Plan Mep will wnsis[ of drilling and blasting to produce specified riprap. As shown on Exhibit "C" Mining Map, the actual quarry area will be approximately 10 acres, depending on quality of the rock. The quarrying process will be done by benching down from the top and will be done in 12 to 20 foot lifts. Ear1r lift will be offset from the last by 6 to 10 feet, leaving the wall of the quarry at an approximate 2:1 slope. The drilling will be done with conventional air beck drills. Low powder factors will be used to produce large blocks that will be sorted. Any oversized material will be reduced using mechanical breakers. The rough product will be sorted and sized in the area to the west of the quarry area. The approximate area will be in the vicinity of 7.5 acres. 'This will also be the area where the fmal products will be stored until hauled to locations of placement. The product will be handled with hydraulic excavators, dozers and loaders. The mining process for the remaining area of effected land, area "B", will actually be a reclamation project in itself. The overall concept is to remove the sands and gravels that have been deposited from past floods. This was once a very fertile and productive ranch. A copy of a brief history and a paintin of this ranch have been included in the Reclamation Plan for reference. The latest flood occurred in 1924 in which the majority of the sand and gravel was deposited. It is the intention of the landowner to remove all of this deposit, reclaim the existing topsoil buried beneath and plant alfalfa, which will be irrigated with mechanical sprinklers. Mining operations for area "B", or the remainder of the permitted azea, are to remove sands and gravels tfiat were deposited by past floods. The sands and gravels were deposited with the thickest portion to the east and fanning out to the west. The plan is to remove all of the deposited material to the original topsoil that lies beneath. These operations will eventually adjoin the riprap quarrying operation. "Ibis operation will be carried out with the use of scrapers, dozers, loaders end motograders. Stockpiles of the raw product will be onsite. Processing will take place on the affected land as well as at our Avery pit located on the south side of Buena Vista. Processing onsite will be any one or combination of the following: Screening, conveying and/or raw material excavation and transportation offsite. N^_ onsite washing is planned. This situation is unique due to the fmal topsoil being in place below the deposits ofsand and gravel. By our removing these deposits, we are actually doing the reclamation, Once the topsoil is exposed, it will be cultivated, fertilized and planted in alfalfa to retran it to productive cropland. The landowner will be placing center pivot sprinklers to irrigate the area. This will be done as enou opsor is exposed to economically plant at one time. There is no overburden to be removed, as the overburden is the flood deposits proposed to be mined. Prior to the flooding, this area was productive ranch ground as well as a smell apple orchard. The risk of future flooding has been eliminated by the placement of a Roller Compacted Concrete (RCC) dam at the narrow canyon mouth near the northern boundary of the southwest '/. of the northwest '/. of Section 26, or area "A". Blast monitors will be used on and around the dam when blasting for riprap occurs. Groundwater is not expected to be encountered. Trout Creek is being held back by the newly constructed RCC dam just upstream of the affected land. Prior to the dam, Trout Creek historically went underground in the area near the dam and continued under the off acted land. My discharges from the dam also go underground. The proposed operations will not effect the groundwater. Water for dust control will be purchased from the landowner end will be delivered from the RCC dam