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mine. In addition, clean fill may be imported and placed permanently on site with geotechnical
<br /> engineering oversight.
<br /> 4. Topsoil and Overburden Handling
<br /> Topsoil will be stripped to create stormwater berms for each respective mining phase area.Overburden
<br /> will be stockpiled and used as needed for reclamation slopes and placing on bedrock over the mining
<br /> areas.Topsoil and overburden volumes assume an existing depth of 0-3"for topsoil and 18"for
<br /> overburden.Soils in the permit area are rocky and shallow.Table D-3 shows a balance of the topsoil and
<br /> overburden stripped versus the amount used in berms and reclamation of the mined areas.There will
<br /> be no permanent backfilling above existing terrain anywhere in the permit area.The entire permit area
<br /> is outside the Gunnison River 100-year floodplain. '!
<br /> r
<br /> Table D-3
<br /> Topsoil and Overburden Ud)umes(CV)
<br /> Topsoil Slope Excess
<br /> Phase Topsoil Overburden for Berm Reclamation !;Overburden Total
<br /> 1 16,335 98,010 16,335 p N/A', ;, "98,010 114,345
<br /> 2 1,089 6,534 1,089,; N/A„ I 6;534 7,623
<br /> 3 7,421 44,528 71491` 13,3331" �i',! 1!:: 31,195 51,949
<br /> 4 4,074 24,442 4,074 NA 24,442 28,650
<br /> Table D-3 shows there is more than eno'Ugh overburden and f8l'�soil available to reclaim the mined
<br /> areas.
<br /> 5. Schedule of Operations
<br /> Contact awards will determii,ne thd,amount of activity at the site.Although mining operations are
<br /> I. I , In
<br /> dictated by demand,the maximum rates as set forth in the mining plan will not be exceeded. Mining,
<br /> screening, processing,and product',s,ales will take place year-round, but reduced production may occur
<br /> during the wirf e''r Mining,processing�and trucking will be scheduled from 6:00 AM to 7:00 PM, Monday
<br /> through Satdrday,at maximum scheduling. However,many periods will see much less activity.
<br /> 4� U
<br /> 6. Mesa County Impacts and Environmental Impacts
<br /> Surrodr ding land usesi include Conservation/Mineral Extraction to the east and south, BLM to the west,
<br /> and Mesa,County aftcl Business Park Mixed Use to the north. No existing residential uses are adjacent to
<br /> the permit area h6 end use of the permit area is Residential Medium Low(RML),at 2-4 dwelling units
<br /> per acre, according to the 2011 Whitewater Community Plan. For the purposes of this DRMS permit,the
<br /> site will be reclaimed to rangeland as an interim condition prior to development.
<br /> No unwanted stresses on Mesa County utilities or service providers are projected due to this gravel
<br /> mining operation.
<br /> 7. Water Information, Rights,and Augmentation
<br /> All water issues such as availability of water for this operation,consumption rates, dust control,etc. are
<br /> presented in Exhibit G—Water Information.
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