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A plethora of submitted and approved changes were made to the Alma Placer 112 DRMS permit. <br /> A timeline of Alma Placer Gold Mine DRMS, M-1985-029, Technical Revisions and <br /> Amendments is listed below. <br /> • Historic placer gold mining recorded (-1872) <br /> • Timberline Enterprises processes secondary gravel commodity(1979) <br /> • DRMS 112 permit M-1985-029 issued to Ducommun Business Trust(owner) and <br /> Panhandle Drilling Company(operator) for gold placer mining(1985)Revisions listed <br /> below apply to DRMS permit M-1985-029 unless otherwise detailed. <br /> • SO; AM-01: operator rights transferred from Panhandle Drilling Company to <br /> Reclamation Resources Inc. (1990) <br /> • AM-03: change of mining method to use a Ross box and add 40 acres (160 to 200 acres; <br /> 1990) <br /> • TR-2: pond drainage and new reclamation cost estimate (1994) <br /> • TR-3: addition of water pipeline for substitute water supply plan map and mining plan <br /> update (1999) <br /> • TR-4: request to conduct limited processing and sales of previously mined gravel <br /> material (1999) <br /> • TR-5: minor revision to mine plan narrative (1999) <br /> • AR-1: acreage reduction to 189.2 acres; pre-law disturbance release (2000) <br /> • Release of 110 sand and gravel mining DRMS permit M-2000-063 (2004) <br /> • AM-04: increase gravel production area, improved reclamation plan, and allow asphalt <br /> and cement production (acreage: 216.1; 2004) <br /> • SO-02: operator rights transferred from Reclamation Resources Inc.to Ducommun <br /> Business Trust(2004) <br /> • TR-6: revision of bond for the gold mining operation (2004) <br /> • TR-7: allowed use of flocculant to coagulate fines for the gold sluice operation (2006) <br /> • SO-03: ownership transferred from Ducommun Business Trust to Alma Placer Company, <br /> L.L.C. (2010) <br /> Alma Placer Mine <br /> December 2017 i-2 <br />