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Mr. Ben Langenfeld, P.E. <br />Page 2 of 5 <br />16 March 2021 <br />o Inlet and Outlet installations <br />Adequacy issues are numbered in italics below. <br />Rule 6.4.3, Rule 6.4.4, Rule 6.4.5(2)(c) <br />Upon comparison of the 2020 Annual Reclamation map with Maps C213 and FIB submitted <br />with the TR4 application, it appears to DRMS that the vegetated meander bend will be <br />stripped and inundated as a result of extraction operations. <br />1. Please specify what measures are being taken to minimize or prevent injury to existing <br />water rights both during and after mining of the disturbance proposed in TR4. This <br />narrative could comprise an addendum to the 1980 reclamation plan on file at DRMS <br />and be titled: Protection of the Hydrologic Balance. <br />DRMS Response 2021 March <br />Please commit to not exposing groundwater in the proposed cell until you have an <br />approved augmentation plan and well permit. If a TSWSP, will be obtained in the <br />interim Elam Construction can expose groundwater as long as the Division is <br />adequately bonded to address the exposed groundwater. <br />2. Please provide an updated Mining Plan narrative. <br />Resolved <br />3. Please assure that Map C2B provides all information required as per Rule 6.4.3. This <br />may mean a larger format map, or even two maps to insure all information is legible. <br />Resolved <br />Rule 6.4.6 <br />4. Please assure that Map FBI provides all information required as per the above <br />mentioned rule. <br />Resolved <br />Rule 6.4.5 Exhibit E Reclamation Plan, Rule 6.4.12 Exhibit L Reclamation Costs <br />DRMS has on file the 1980 Bunn Ranch Reclamation Plan. There is a need to update the <br />reclamation plan with information appropriate to Technical Revision TR4, specifically in the <br />areas of timing, hydrologic balance, and reclamation costs. DRMS understands that the Bunn <br />Ranch site includes a total of 133 permitted acres with a maximum permitted disturbance of <br />50 acres. The requested new disturbance with TR4 is within the Bunn Ranch permit boundary <br />however, the added disturbance acreage was not fully addressed in the application. <br />5. Please provide the division the acreage for the requested additional disturbance. <br />DRMS Response 2021 March <br />The revised mining and reclamation plan indicate the maximum disturbance will be <br />limited to 50 acres. The annual reclamation report for 2020 indicates 92.5 acres have <br />been affected of which 37.5 acres has been backfilled, graded and 27.5 acres have been <br />seeded. Exhibit F-IB indicates Pond 5 is 33 acres of which a portion appears to have <br />TR4 Bunn Ranch Pit March 2021 <br />ADQ #2 <br />