1999-09-03_REVISION - M1977129 - Laserfiche WebLink

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Exhibit D MINING PLAN Unless specifically discussed below the methods described in the 1977 and 1981 mining plans will remain unchanged. Existing sloping, grading and shaping plans will apply to the new area since they are similar to the area now in the permit. The following amendments to the mining plan are numbered sequentially to follow those submitted in 1981. We currently have well permits on each lake shown on the 1981 maps. We will revise our well permit to include the Stage 2 - Part B and Stage 5 lakes prior to mining commencing in those stages. AMENDMENT 7 - Acreage added to Permit This section describes the changes in area made to the permit. in 1997 we leased additional lands in the southern area from Unaweep Charolais Ranches, Inc. , for mining. In Stage 2 - Part A we will square up the southeast corner of that stage by adding 2 .40 acres ±. This will create an area where the houses on Highway 141 will become lake front property. These houses are owned by Unaweep Charolais Ranches and in the lease agreement we have to stay 100 feet away from the houses with our digline as shown on the Mining Plan Map. One minor change to the lake configuration in Stage 2 - Part A is in the west arm where the existing settling pond is located. This area may be silted in with wash water to create a shallow divider as shown. This will not affect the final reclamation plan since it will have a shallow water cover. The largest area added on the south side is the 32 .04 acre area east of Hwy 141 adjacent to the Gunnison River. This area will be mined using the method described in the original mining plan. we will maintain a 100 foot setback from the highwater line of the Gunnison River on the east and East Creek on the south. A 25 foot setback will be maintained along HWY 141 . The material will be hauled to our processing plant in Stage W. The final slope will be 3h to lv from five feet above the water line to 10 feet below and 2h to lv from there to the bottom of the excavated area. in 1997 Whitewater Building Materials Corp. purchased additional land north of the Gunnison River adjacent to lands purchased in 1980. In this area we are adding 92 .53 acres ± north of Coffman Road to the permit. We also traded BLM a parcel west of Coffman Road for an equal amount on the west side of old Stage 4 that adds 0.92 acres ± to Stage 3 - Part B. The newly added areas will be mined using the methods described in the existing permit with the only change being the sequencing changes as shown on the Mining Plan Maps and Mining Plan timetable. The most distinctive change is, to start mining north of Coffman Road in Stage 3 - Part A so that we can create a settling pond to collect the fines as the area north of the river is mined. The slopes into this area will be left nearly vertical while it is being filled so it will hold more. The distance around this vertical slope stage is less than what we have accounted for in our Reclamation Cost Estimate (Exhibit L) . 5