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ID: JUN 27'95 15 15 No .005 P.09
<br />... , ~ .., Lin. LL,If.::L,14Ci.1.1 •A:. :... ... _
<br />12~ 7~e ~1~(S(drV
<br />J~~r-~~ 13,1~~`rY
<br />Y14 N 205,855
<br />B "!., 037, 569
<br />>n
<br />P.lS N 106,066
<br />E '1,037,500
<br />Tl,e deGign id col,eiatent with the 8590' emhankment
<br />1',i ezometere. instal ] ed in September 1993. As outl ircci ~ rr the
<br />])i.vis:.on'st November 2, 1993 letter, the piezometors ware
<br />conetruca:ad ouch Lhat the bottom cap fe at or near the
<br />r7r7„rri r7t of t.l+n emhankment fill mr~t.pr ia]. gnri ~ t.hP ta' 1'~ nqn
<br />with n lo' b~r.c;an interval in the fill material dirPrt:]y
<br />above the r,.aS,. ThF ercbankment piezs+met:er® wilt. Le mor,itc,rcd
<br />month, y.
<br />1~ivv in-tail.i.ttgs giezometera were also installed. T11eoe
<br />pi~zometcre are iciAntifiad ao t+16-P20. Tho coordinal.ea fuz
<br />tht? in-tailrtya giezometers are:
<br />F'16 1J 7.05,195
<br />G 2,U3~,a2~
<br />I'17 N ::05,460
<br />B 7., 037,'150
<br />P18 N 205,671
<br />N ::, 037, 7Uri
<br />L 2, 037,E97
<br />P1U N 206,096
<br />H. '1., 037, 580
<br />'Phe 1)iviai.on provided 3N,RI with a Schematic of in' cailin,c7
<br />pi.ezomet.er/, whiC11 was prepared 6y Water., WBate,entt Land.
<br />rtMRi ;Eollawed the dotlign provided by the Diviaior, Lor the
<br />i.nsta]]ation of the in-*_ailings piezometers.
<br />Au outlined in the DivSaion'e January 6, 1994 e,emo to file.
<br />t:ha accent: to t:.;,r. .in••tailings piezometere for ttte pu7'pnye of
<br />)~ailinc arrci :rloni.toring will be dependettt Upon t.17E
<br />clr,uositional secp,rencing. AB stated by the 13ivisio:,,
<br />quart.exly read~ayt~ - f1eY.lble in that. monir.nring ah.,,:l!i hP
<br />pet•f.oc'med at bast 4 timed per annum on dates as equally
<br />sp3Ged ds por+Etib.le depending on accesgihilir.y - will b~
<br />gollected and recorded,
<br />HMkJ c:<,:+c.inuea to be cor.cern~d aboLt the quality and
<br />inP.CrpretafiCin of data nhr.ninPd fmm r.ha {n-t'ail.in~,;
<br />pi%zcmet:ers. oLvic7ualy, as tailings are deposited a:uund
<br />T.h. F3_Y(.:F:I'IP.d ir,l.rY~va~~ of hh~ RY.rinfl~l+T1r, WHYP>•' W7 1 ]. 6e
<br />coi].er.t:ed in Che piwaon,e~cz. Ones the screened interval i
<br />:ntri.~d hl+ tailingF, the piezc+metera will likely cc,llert.
<br />
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