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Page 2 <br /> Mr. Eric Scott <br /> August 16, 2018 <br /> EXHIBIT D-Mining Plan(Rule 6.4.4): The mining plan states that the excavation will be a maximum of 10 feet below <br /> surface, however the provided figures for mining plan and reclamation plan maps as well as the reclamation plan <br /> indicate that the excavation will proceed to the base of the gravel resource-at least 20 feet b.g.s. and possibly <br /> greater than 50'b.g.s. No depth of excavation is provided for the "recharge pond"area in the northwest corner of the <br /> permit-please clarify these issues. if the operation will be conducted in phases,please clearly describe each phase <br /> of the operation and provide appropriate mining plan maps for each phase. <br /> An updated mining plan has been attached to this response. In summary the mining will progress to <br /> bedrock overtime should the market condition be favorable. Initially the miner will complete the proposed <br /> slurry wall. The slurry wall will be leak tested during which time the miner will mine enough topsoil and <br /> overburden (above the groundwater table)to generate revenue to pay for the slurry wall. There will be no <br /> exposed groundwater during this time and once the slurry wall leak test is compete the miner will stop <br /> excavating topsoil and overburden material. At this time the miner will begin to place their water rights in <br /> the state approved slurry lined reservoir for use in a court approved augmentation plan. <br /> The last paragraph in section(a)refers to Bestway Concrete&Aggregate-please revise. <br /> The last paragraph has been updated. <br /> EXHIBIT E- Reclamation Plan(Rule 6.4.5); Section(c)of the reclamation plan states that 'mining will occur at <br /> slopes that are stable" while the mining plan states that 'phases will be mined at a 3H:7 V slope"Please revise <br /> reclamation plan to state that excavations will not be steeper than 3H.I V during mining. <br /> The reclamation plan has been updated to state "slopes will be no steeper than 3H:lV." <br /> EXHIBIT F- Reclamation Plan Map(Rule 6.4.6):see comments on Exhibit C. <br /> The 16.5 acre pond (changed to 14 acres) on the southeast side of the Site will be mined approximately 10 <br /> feet deep. The material will be stockpiled in berms around the perimeter of the mine area to create a <br /> reclaimed water storage vessel, the water storage vessel will then be lined with a synthetic/plastic liner to <br /> store water. There will be no exposed groundwater. Cross-Section 7 (Sheet 6 of Plans) shows the proposed <br /> depth of excavation, approximate groundwater level and the general layout of the excavation. <br /> EXHIBIT G- Water Information(Rule 6.4.7): In several instances Exhibit G states that the site will not be dewatered, <br /> groundwater will not be exposed or that the material excavated will not contain groundwater. <br /> An updated mining plan has been attached to this response. In summary the mining will progress to <br /> bedrock overtime should the market condition be favorable. Initially the miner will complete the proposed <br /> slurry wall. The slurry wall will be leak tested during which time the miner will mine enough topsoil and <br /> overburden (above the groundwater table)to generate revenue to pay for the slurry wall. There will be no <br /> exposed groundwater during this time and once the slurry wall leak test is compete the miner will stop <br /> excavating topsoil and overburden material. At this time the miner will begin to place their water rights in <br /> the state approved slurry lined reservoir for use in a court approved augmentation plan. <br /> Once the slurry wall has been approved the state does not required water trapped in the material to be <br /> replaced. If market conditions are favorable to mine below the exterior groundwater level of 13' b.g.s the <br /> miner will actually be taking their own stored water out with the product, but as stated above the water in the <br /> product is not required to be replaced per SEO guidelines. The mine will not expose groundwater and in the <br /> event there is a sump excavated the miner understands that a Substitute Water Supply Plan must be <br /> obtained. Civil Resources has been in discussion with the SEO's Water Resources Division concerning how <br />