2021-12-02_PERMIT FILE - M2021067 (4)

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3. Mining-The mine is organized into four(4)mine phases with twelve(12)mine blocks(1A-B, 2A- B, 3A-D,and 4A-D).The mine blocks vary in size from 10 to 13 acres. a. Mining Direction- i. Mine Phase 1, Block 1A and 1B—mining will occur from west to east. ii. Mine Phase 2 through 4 and their individual mine blocks—mining will occur from North to South as illustrated on the following mining diagram. b. Initially, mine phase 1,2 and 3, (t75 acres)will have the topsoil and overburden striped, t3 feet,and placed in temporary stockpiles. No dewatering trenches will be installed during the first striping operations. i. Mine Phase 2 and 3's aggregate deposit will remain exposed until mining catches up with this initial stripping operations. ii. This overburden material will be used to backfill the hot plant(1A)and wet plant(1B)aggregate excavations. c. Mine Phase 1 -The hot plant site and recycle material yard(Mine Block 1A)and wet plant site (Mine Block 113)aggregate material will be mass excavated and placed in raw aggregate stockpiles. i. The Phase 1A and 1B aggregate material will be excavated down to ground water and stockpiled at the mass aggregate stockpile area (t10 acres). ii. The dewatering trenches,first pump basin and pumps will be installed prior to the removal of wet material from the mass excavation. iii. The Phase 1A and 1B aggregate mass excavation will be completed down to the bedrock subgrade and placed in a raw aggregate stockpile for future processing. iv. The mine area will be filled and compacted with the overburden excavated from the first striping of Phases 1,2 and 3. The sites will be finished with gravel to facilitate future industrial land uses within 1 year of permit approval. v. No topsoil will be spread on mine blocks IA or 16. d. Truck scales and the mine office will be installed with any required utilities. e. The hot plant site will be graded for installation of the permanent hot plant equipment. f. Recycle aggregate crushing and screening equipment will move on site(IA)and begin processing the waste materials into usable recycled aggregate materials ready for sale or use at the asphalt hot plant. g. The wet plant site will be backfilled and graded for installation of the permanent wet plant equipment and infrastructure. h. The wash plant and asphalt hot plant will begin producing products for sale and use in the community. i. The establishment of the hot plant and wet plant sites by using the overburden that is excavated from Phases 1,2 and 3 will affect±75 acres. 4. Phase 1 extracted raw material stockpiles will be reduced and processed in advance of starting the mining in Phase 2.These crushing and screening operations will process aggregate materials from the mass stockpile for t2 years prior to the start of mining operations in phase 2. S. The overall time needed to complete the mining is estimated to be 40 years. Maximum production is expected to be 300,000 tons per year. Due to market and economic considerations, mining could progress faster or slower than expected and more time may be needed for mining and reclamation of the site. H•\Pits HBP Plants\EVANS\Stlks Mining Resource\Ezh D-Mine Plan\Mine Plan Draft.docz