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<br />ATTACHMENT A <br /> <br />This review is updates the Division of Minerals and Geology (DMG) staff on the status of <br />reclamation work performed at the Logan Wash research facility. <br />No disturbance activity was conducted during the 1995 reporting period. Five adits and two <br />small cutouts were sealed during 1995. These adits were determined to be unnecessary for mine <br />maintenance and sealed to prevent unauthorized entry into the mine. The attached map, "Adits <br />Closed in 1995," shows the adits which were sealed during 1995. The adits were closed using <br />methods outlined in the work plan which was submitted to the DMG on August 10, 1995. Table <br />1 summarizes the methods used to close each adit and cutout. <br />TABLE 1 <br />METHODS USED TO CLOSE ADITS AND CUTOUTS <br /> <br /> <br />. .. .. :. <br /> <br />...... :..:...: ~.. ~ . ~ : ~: ~ :: ~::: ~ <br />...... <br />- ~ Steel Porfal ' <br /> <br />:~::~ . ~.::: ~ :~~; ~ ' ~ :.:.~ ~ ~:~ <br /> <br />:AdiUCutout~;~~: <br />.~.:::.:.~~:~~~.;.Description,~:' <br />:~:.::;::~;~ ,... <br />.~. Uoorsin ... <br />.:::::.::.::~ .:~..:Meth6ds~Used~::::;..~:~.~~.~:. <br />~...... <br /> <br />........ . <br />.. . <br />....... .. P <br /> <br />~...~ ce~ ~ <br />:: <br />..::~ ~ :..~..::..:.~:...:~~: ~ ...:.......... <br />U-1 Uppcr Level Adit N 1 Yes Adit Filled from Interior of Mine to <br /> Surface -Fill Len h Exceeded 30' <br />U-2 Upper Level Adit k 2 Yes Adit Filled from Door to Surface - <br /> Fill Len h Exceeded 30' <br />L-1 Lower Level Adit p 1 No Adi[ Filled from Interior of Mine to <br /> Surface -Fill Len th Exceeded 60' <br />L-2 Large Portal on Lower Mine Bench Yes Rebar MaC and a Minimum of 2' of <br /> Shoterete <br />Research Research Mine Adit Yes Adit Filled Irom Door to Surface - <br />Mine- Drive N Fill Len h Exceeded 30' <br />Cu[ou[ 10'X10'X20' Tumaround No Entire Excavation Was Filled <br />Cutout 10'x10'x20' Tumaround No Entue Excavation Was Filled <br />A formal bid package for mine closure including a work plan was submitted to prequalified <br />bidders. A copy of this work plan was submitted to the DMG. Reams construction of <br />Naturita, Colorado was the successful bidder and performed all work. Work was performed <br />from August 15, 1995 through August 19, 1995. <br />(P.\OXY\95RPfS\MLRB-LOC.RP110326/96/10:45.m) 1 <br />