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EXHIBIT D- MINING PLAN <br /> This information provided in this Exhibit is intended to satisfy the requirements outlined in Section <br /> 6.4.4 of the Colorado Mined Land Reclamation Board Construction Material Rules and <br /> Regulations: <br /> (a) Description of the method(s)of mining to be employed in each stage of the <br /> operation as related to any surface disturbance on affected lands; <br /> The proposed permit area includes a significant deposit of sand and gravel located in <br /> the alluvium of the Big Thompson River in Weld County. The site is located southwest <br /> of the Big Thompson River, north of WCR 48 and west of WCR 25. It encompasses <br /> 6.0 acres +/-. <br /> Existing Conditions and Site Preparation: <br /> Existing Conditions <br /> The current Bernhardt Gravel Mine is actively being mined. The proposed amended <br /> property is a fallow piece of ground bounded on the north, east and west by the <br /> Bernhardt mine. <br /> Site Preparation <br /> Initial disturbance of the property will include: clearing the site of existing structures <br /> (with exception of the structures to remain), and stripping the topsoil and overburden. <br /> The parcel is too small to mine to bedrock. <br /> Mining: <br /> Cell 1 —mined out, silt storage and fresh water pond <br /> Cell 2—mined out—slurry wall approved and water currently stored <br /> Cell 3—mined out—slurry wall approved <br /> Cell 4- partially mined—slurry wall provisionally approved <br /> Cell 5—minimum disturbance for provisional slurry wall test <br /> Amended Area—minimum disturbance with conveyor going through—future silt <br /> storage if this area is partially mined out after conveyor is moved <br /> The operator will develop and comply with a Stormwater Management Plan and Spill, <br /> Prevention, Control and Countermeasures Plan. The operator will notify the Division <br /> of Mine Safety and Reclamation in the event of a reportable spill. <br /> Processing: <br /> All material mined under this proposed application will be transported by conveyor or <br /> haul truck to the processing area. <br /> Import Material: <br /> Bestway Concrete&Aggregates may import material from and export material to other <br /> sites. The applicant is aware that in accordance with Rule 3.1.5(9) of the Construction <br /> Material Rules and Regulations, if any offsite material is used as backfill, a notarized <br /> Bestway Concrete&Aggregates—Conveyor Amendment-Bernhardt Mine—MLRB 112 Permit Application <br /> Exhibit D-1 <br />