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Eric C. Scott <br /> May 24, 2019 <br /> Page 2 of 2 <br /> Backfilling will occur concurrently with the mining of each cell. The remaining mining cell <br /> excavations will be reclaimed to water storage reservoirs identified as Ponds 1-5. Reclamation of <br /> each water storage reservoir will include construction of a compacted clay embankment (clay liner) <br /> around the perimeter of the excavation to prevent seepage of groundwater into and stored water <br /> out of the reservoirs. <br /> To determine whether the lined reservoirs cause groundwater mounding, the Applicant proposes to <br /> construct observation wells. If significant groundwater mounding is observed, the Applicant <br /> proposes to construct a perimeter well to mitigate the mounding. A dewatering system well permit <br /> will be required to be obtained for the proposed perimeter drain/well. <br /> The consumptive use of groundwater at the site by evaporation, dust control, and water retained <br /> in the mined product is estimated to total 5-10 acre-feet per year. The Applicant intends to obtain <br /> a substitute water supply plan to cover depletions prior to mining. <br /> The Division of Reclamation, Mining and Safety and/or the Applicant may contact the State <br /> Engineer's Office with any questions. <br />