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MEMO TO FILE <br />Date: Wednesday. February 21 2001 I I :5I a.m. <br />Specialist: Allen Sorenson Signed: d tivv <br />Subject/Operator /Operation/File No. Various, Henderson Mill. Climax <br />Molybdenum Company. Permit No. M -1977 -342 <br />Type of Interaction: Meeting phone Other <br />Person(s) contacted and affiliation: <br />303/5459.1322 I ext. 2214 <br />c:lwindnwslpersonatlhenderson various MTF.doc <br />111111111011111 <br />Erich Bower. Environmental Coordinator, Henderson Mill <br />Summary and Resolution of Interaction: Discussion of the following three topics: <br />Henderson plans to install phase one of ground water interceptor system during construction season 2001. URS is <br />completing design for approximately eight interceptor wells and a series of 1 inch monitoring piezometers. A <br />technical revision to incorporate the interceptor wells and monitoring network will be provided. <br />RFP for summer 2001 topsoil salvage operations in the tailing basin will be prepared in March 2001. DMG will <br />inspect site this spring to review topsoil stockpile locations and determine if additional permitting is necessary. <br />Pistil any be pushed into temporary windrows or placed in long -term stockpiles depending on cost and logistics. <br />DMG is concerned that salvage operations proceed such that poorer quality subsoil is not mixed with A- horizon <br />material. DMG will schedule inspection to observe topsoil salvage operations. <br />Henderson is proceeding to finalize a plan to accept delivery of biosolids for use as a reclamation soil amendment. <br />Will obtain permit from Health Department and TR with DMG. Currently looking at accepting only grade A, <br />composted material from the producer. This material would have no restrictions on where it could be used. <br />Ccw y14 v:ii A(Q d e .. c <br />