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~ii~ iiiiiiiiiii~i iii <br />999 <br />EAS'IS1llE l:OAx, CO,v;PAx~Y, t.v[;. <br />Subsidence Report <br />?larch 1994 <br />Eatcaction Limits <br />I'he mining chat has occurred ac t,[e k.astside J,iue since one last <br />subsidence survey is shown on Lhe Subsidence P,ap dated :,arch 1994. A <br />conservative angle of draw of 2~" includes ~;onument 1, 2, $, Alternate i <br />and Alternate 2 in the area of possible inLluence Irom subsidence. <br />Observed Subsidence <br />honuments 1, 2, $, Alternate 1 and Attex'nai,e 3 were surveyed uu hatch <br />29, 1994. The results are nivowu in the enclosed tables. <br />?.onument 1, ::onumeut 1: dlternace and :.onumenl 2: Alternate show a <br />surveyed decrease in elevation of O.OlU feet from the last survey. <br />~.onument 2 shows a decrease of 0.U4U teems trues the last survey. <br />ivionument $ shows a increase in elevation of U.UStl ieet Irom th[~ Last <br />survey and dcrease elevation of 0.440 feet from the original survey. Vote <br />that the previous survey was conducted August of 1990. P.onumeu[ $ was <br />deleted from the ongoing subsidence survey due [o being outside the <br />area covereu by Lhe angle of draw proposed by the subsidence report <br />prepared uy HUCx.a. <br />,vo ubservaole subsidence was observed al Lhe sites ut the subsidence <br />points. The survey indicates no measureable subsidence has occucreu <br />due Lo mining activity in Lue c,asLside ..i[[e. <br />Cro structures or renewable resources have been aliected by subsidence <br />oI Lhe naaLSiue :,ine. <br />