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Table D-2 Topsoil and Overburden Material Generated During Mining <br /> Material Generated (CY) <br /> Topsoil 220,000 <br /> Overburden 330,000 <br /> Due to the reclaimed land use as water storage ponds, there will be an excess of topsoil than <br /> what is needed for reclamation. This is because the pond makes up the majority of the <br /> reclaimed land and does not need to be topsoiled entirely. Excess topsoil and overburden will <br /> be used to achieve the final grading shown in the reclamation map in Exhibit F. Overburden, <br /> topsoil, and sand will be used to backfill mining slopes to their final reclaimed state. Topsoil will <br /> be replaced on all disturbances outside of the pond floor and on the pond slopes. It will not be <br /> replaced on the pond floor. Topsoil will be replaced in an average 24-inch layer based on the <br /> available topsoil stripped. Details pertaining to reclamation can be found in Exhibit E and the <br /> maps in Exhibit F. <br /> 5. Oil & Gas Facility Handling <br /> Existing oil and gas facilities will be disturbed as minimal as possible, with proper setbacks kept <br /> from any facilities that will remain through mining. The slurry wall will be installed with proper <br /> care where it interacts directly with these facilities. Areas surrounding gas and other pipelines <br /> will be excavated carefully to avoid causing damage. The slurry will then be poured under and <br /> around these facilities which will serve to seal and support them. This is a common practice for <br /> slurry walls that the installation crew will have experience in handling. <br /> Some of the oil and gas facilities will be removed, as shown on Map C-2. These will be removed <br /> by the facility owner with the collaboration of the mining operator. <br /> 6. Site Access <br /> Primary <br /> access to the site is via the entrance road on the north side of Weld CountyRoad CR <br /> � ) <br /> 52. Site access is shown on Map C-1. No improvements to this access are necessary. <br /> 7. Internal Roads <br /> Internal access to the mining and operating areas will be achieved with gravel roads <br /> approximately 30 ft. wide although this may vary. All roads will be sprayed for dust control and <br /> will drain internally to the pits. <br /> P123 Mine <br /> July 2025 D-4 Il Lew-icki&Associates <br />