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Processing: <br /> The material will be dry screened or not screened at all and transported offsite by truck. The <br /> processing area will be located on the south side of the site in cell 2. <br /> Import Material: <br /> The Operator may import material from and export material to other sites. The applicant is <br /> aware that in accordance with Rule 3.1.5(9)of the Construction Material Rules and <br /> Regulations, if any offsite material is used as backfill, a notarized letter will be submitted to the <br /> Division indicating the materials are inert. The applicant will supply such a letter to the <br /> Division if,at the time of Reclamation,the applicant intends to use off-site material as backfill. <br /> (b) Earthmoving; <br /> Topsoil and overburden will be stripped with scrapers or bulldozers and stockpiled in <br /> segregated piles at the edge of the active mine phase. Excavators,front-end loaders,and <br /> bulldozers will be used to excavate the material. Haul trucks will be utilized to transport the <br /> raw material from the active mine phase to the processing area. See Exhibit C for a cross- <br /> section of side-slope mining;after recovering to near-vertical at an offset or 1:1 setback to the <br /> planned top-of-slope, overburden, recovered silt or other suitable fill will be replaced to <br /> establish the final slope profile. <br /> (c) All water diversions and impoundments; <br /> Storm water will be discharged per a CDPHE discharge permit. There are no planned <br /> diversions or impoundments of existing water bodies. A wash cycle for the aggregate <br /> processing area will be established using the freshwater pond as a source and the silt pond for <br /> return flow,with natural groundwater filtration between the source pond and the return pond. <br /> Any water consumed will be provided by the existing water rights associated with the property <br /> and/or a groundwater well with associated substitute water supply plan (see Exhibit G). <br /> (d) The size of area(s)to be worked at any one time. <br /> Excluding the processing area,the maximum area to be worked on at any one time is <br /> approximately 30 acres. <br /> (e) An approximate timetable to describe the mining operation. The timetable is for the <br /> purpose of establishing the relationship between mining and reclamation during the <br /> different phases of a mining operation. <br /> The Operator anticipates that mining will commence as soon as all permits are in place. The <br /> Operator anticipates extracting approximately 1,000,000 tons of aggregate in a typical year, up <br /> to 1.7 million tons at peak capacity. Production rate will vary based on market demands. <br /> Timetable for Mining and Reclamation <br /> Stage 1(Freshwater and silt ponds): The Operator will wet mine the freshwater and silt ponds. <br /> Mining will begin in the siltation pond and progress west to the freshwater pond.The average <br /> rate of mining is expected to be between 1,000,000 tons per year and 1,500,000 tons per year. <br /> Given these rates it is expected that mining in Stage 1 will take approximately 1 to 1 '/2 years. <br /> Nix—Gravel Mine—MLRB 112 Permit Amendment <br /> Exhibit D-2 Page 12 of 126 <br />