2012-02-24_REVISION - M1999120 (7)

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Exhibit D MINING PLAN Existing Conditions. Unless specifically discussed below, the methods described and approved in the original Fort Lupton Sand and Gravel Mine (FLS &G) 1999 permit and 2004 amendment applications, mining and reclamation plans will remain unchanged. The Mining Plan described in the 2004 amendment will be used with the only change being to the direction of mining. The mining methods used at the Lupton Meadows Reservoir are changed to conform with the FLS &G methodology when the permit was transferred from Suburban Sand and Gravel Co. to L.G. Everist, Inc. This amendment combines Fort Lupton Sand and Gravel Mine (M- 1999 -120) with the Lupton Meadows Reservoir (M- 2002 -104) and adds 6 parcels north, south and west of the existing mines. The addition of the Lupton Meadows Reservoir mine and the six new parcels to the permit boundary will increase the permit area by approximately 641.64 acres +. MAP ExHIBIT C shows all of the properties combined onto one map. The hatched areas are the permit boundaries of the existing mines. All of the mined areas shown on the maps will be slurry wall lined and developed as a series of 22 water storage reservoirs ranging from 10.26 to 52.50 acres +. TABLE D -1 - MINING TIMETABLE on Page 9 is the list of the mining stages that will be referred to in the following text. MAP ExHIBIT B shows the legal parcels that will be added while the mining and reclamation Plan Maps show how the site will be developed. As part of this amendment, some existing Stages and new areas are combined into single Stages. The new Meadows West Stage is the Lupton Meadows Reservoir Stage 3n combined with a portion of the Vincent property and a 5 acre lot on the east side, into one stage lying between Little Dry Creek /Slate Ditch in the east and north, the old railroad bed on the west and gasline ROW's on the south. The southwestern stage in the Fort Lupton S &G mine were combined with the Vincent property north of the creek /ditch into one stage called the Swingle South. The total number of stages added to the Fort Lupton Sand & Gravel mine is 19 stages and the new area will add approximately 12.5- 15.5 years to the life of the mine at a rate of 750,000 to 1,000,000 tons per year. We estimate by adding the new area, the life of the mine will last from 23 to 35 more years. This rate is subject to fluctuation depending on market conditions. The current bond for Ft. Lupton S &G is $997,872.00 and Lupton Meadows Reservoir is $286,000.00 for a total combined bond amount of $1,286,870.00. These bonds include surety for 9,100 feet of slurry wall and construction of bank sloping. At this time the applicant has a contract with the City of Aurora to develop 11 water storage reservoirs on the northern parcels of the property. This includes 256.0 acres of the permit area, all of the Lupton Meadows Reservoir mine, Lot A and the Vincent property, all south of Weld County Road 18. The southern parcels and the Blue Ribbon Tract will be marketed by L.G. Everist, Inc. as it is developed. 3