2019-02-13_REVISION - M2001038 (5)

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EXHIBIT D MINING PLAN AND TIMETABLE Unless specifically discussed below the methods described in the 2001 mining plans and Technical Revision filed in 9/25/2015 will remain unchanged. The current bond was set at $110, 860 on Octo- ber 4 , 2018 and a new reclamation cost estimate is presented in EXHIBITL on page 53 of this application. Existing sloping, grading and shaping plans will apply to the new area since they are similar to the area now in the permit . The existing permit area is 47 . 75 acres and will be increased by 60 . 13 acres to 107 . 88 acres . This area is being added on the north end and extended to the south to the property line. We revised the 2001 approved Mining Plan as appropriate for adding the new area acreages, methods and timing. LOCATION The property is located in Adams County approximately 3 . 8 miles north of Bennett, Colorado. From Denver take I-70 East to the Bennett exit and follow Colorado State highway 79 north to E 72nd Ave . Then west 1 . 0 miles to a private driveway (a.k.a. Provost Road) on the south side of 72nd Ave. Follow the driveway south 0 .4 miles to the entrance and scale house. The surrounding areas are mainly large tracts of rural residential sites and agricul- tural or rangeland. Please refer to EXHIBIT B -VICINITY MAP for the property configuration and the relationship to surrounding geo- logical features . CURRENT CONDITIONS The current permit area covers 47 . 75± acres with a site elevation of approximately 5340 feet, sea level datum. Most of the exist- ing mine area is partially mined and reclaimed. Growth medium has been placed around the mine area and some partial backfilling has been done on the mine floor to level area mined in the past . The PRE-MINING MAP-EXHIBIT C shows how the area looks at this time . The gravel deposit is an alluvial deposit that averages 5 to 45 feet deep across the property. This deposit tends to thin from west to east . The deepest area is under the terrace area on the west . Drill logs indicate there is a section of the property that has gravel below the water table on the south end of the permit area. MAP EXHIBIT C shows the outline of the mining area, the touching landowners, the 200 foot ownership, current topography, and hydrologic features of the property. The land is presently used for mining and agricultural purposes by the landowners . Most of the existing area is highly disturbed where mining is taking 3