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filling with construction material will not take place within one hundred (100)feet of the South <br /> Platte River. <br /> 3. Surface Water/Drainage-All mine site operations take place below pre-development grades. <br /> All surface drainage water is to be collected at lower elevations from the mining operations.The <br /> collected waters uses include dust suppression, allowed to evaporate, or discharged per the <br /> substitute water supply plan. <br /> 4. Wetlands-There are no wetlands found within mine boundaries. <br /> 5. Asphalt Specialties will have approved flood permits,gravel pit well permit and a substitute <br /> water supply plan prior to exposing groundwater or working in the floodway. Revision of the <br /> substitute water supply plan takes place annually and accounts for water consumed by <br /> exposing groundwater to evaporation,dust control and water contained in the aggregate <br /> materials. Precipitation runs off are contained in the mine areas for use as dust suppression or <br /> allowed to evaporate. <br /> D—Size of the largest one-time affected land area including the City of Evans 35th Avenue ROW and <br /> Hunt Brother Properties is 158.3 acres and the minable area is±125 acres. <br /> STILES MINING RESOURCE <br /> &"e1/Pared �� l MW liwff IIi.0[1C �AW <br /> N <br /> I-AI kWle 5n. 1 1--Wei PIS <br /> 11-East M 4 4&48,4C.4D 4U <br /> Of W'"t 09 1 iA- ItPI� <br /> 21IE <br /> 35 Ave 6.0 Evans Road 6.4 <br /> TOTAL 1510 125A <br /> Mine phases consist of a sequence of smaller mine blocks varying in size from 10 to 13 acres.The first <br /> mass excavation of topsoil, overburden,and raw aggregate for the establishment of the asphalt hot <br /> plant, recycle material site and wet plant will affect±75 acres in phases 1, 2 and 3. The use of the large <br /> quantity of overburden material is to backfill the two industrial plant sites.After the first striping and <br /> mass excavation,the mine will follow a standard pattern for each block, including striping,dewatering, <br /> mining, back filling and placing topsoil just prior to seeding. <br /> Note: The complete mining, backfilling and reclamation of mine blocks 1A and 16 will result in the final <br /> intended industrial use.The completion of 1A and 1B's reclamation will reduce the initial impacted area <br /> to±60 acres within the first 18 months of operation.The largest mine impact area for the remaining <br /> mine life is±60 acres. <br /> E -Mining Sequence and Schedule-ASCI plans to mine and reclaim the Stiles Mining Resource in four <br /> (4) phases. Mining will progress through the phases and mine blocks as illustrated on the above Mining <br /> Diagram and on the following schedule. <br /> HAPits HOP Plants\EVANS\Stiles Mining Resource\Exh D-Mine Plan\Mine Plan Draft.docx <br />