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Phase 4B <br />The depth to bedrock in this area is greatest near the western portion of the mining cell. Therefore a <br />worst case scenario is represented near the western portion of the mining highwall of this phase. The <br />soil profile analyzed was based on a conglomeration of soil information from exploration locations <br />PA04-BH02, PA04-BH09 and PA04-BH11. The model analyzed; a soil overburden that was 5 feet <br />thick, a sand and gravel layer that was 10 feet thick, and a total pit depth of 15 feet. The highest <br />groundwater monitored in the area was in MW-8 approximately 8 feet below the ground surface. <br />No stockpiles are currently planned to be next to this mining cell. No flood irrigation is near this mining <br />cell; therefore the piezometric surface was based on the site monitoring. <br />Phase 4C <br />The depth to bedrock in this area is greatest near the eastern portion of the mining cell. Therefore a <br />worst case scenario is represented near the eastern portion of the mining highwall of this phase. The soil <br />profile analyzed was based on a conglomeration of soil information from exploration locations PA04- <br />BH10, PA04-BH11, MW-7 and MW-12. The model analyzed; a soil overburden that was 5 feet thick, a <br />sand and gravel layer that was 8 feet thick, and a total pit depth of 13 feet. The highest groundwater <br />monitored in the area was in MW-7 approximately 8 feet below the ground surface. <br />An overburden stockpile was placed east of the pit. No flood irrigation is near this mining cell; <br />therefore the piezometric surface was based on the site monitoring. <br />Phase 5A <br />The depth to bedrock in this area is greatest near the western portion of the mining cell. Therefore a <br />worst case scenario is represented near the western portion of the mining highwall of this phase. The <br />soil profile analyzed was based on a conglomeration of soil information from exploration locations <br />MW-9 and MW-10. The model analyzed; a soil overburden that was 4 feet thick, a sand and gravel <br />layer that was 10 feet thick, and a total pit depth of 14 feet. The highest groundwater monitored in the <br />area was in MW-10 approximately 8 feet below the ground surface. <br />No stockpiles are currently planned to be next to this mining cell. No flood irrigation is near this mining <br />cell; therefore the piezometric surface was based on the site monitoring. <br />Parsons Mine <br />DRMS 112 Permit <br />Page SES of SE8