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~ iii iiiiiiiiiiii iii ~ <br />"" ENGINEERING & SURVEYING COMPANY <br />BOX 674 • 443 DODGE DELTA. COLORADO. 81418 ~ 303-874-7593 <br />•'981-85-Subsidence <br />November i.T•, 1985 <br />Mined Land F?eclamation Eoard <br />42~ Centennial Euilding <br />1'13 Sherman Street <br />Denver, Colorado 8U2t~ <br />aTTN: Jim Pendleton <br />RE: Pear Ceal Cempanv. Bear (line No. 3, ~.ubsidence <br />monitoring. <br />We set new monuments U-8, U-1!~ and U-11. We turned angles to <br />these Geints and also monitored points U-2, U-? and U-9. <br />Upon reducing o!~r n~±es, we determined a problem e::isted with <br />the vertical angles. It was our opinion the problem was in <br />the instrument. We have had the instr!!mer,t checked and <br />repaired, and will ha•:e to turn the •:ert;=a1 angles again. <br />We should have the entire set of data for •:vu by the weeF: of <br />1i-25-85, weather permitting. <br />If you have an.v questions, please call us. <br />E. LeRay E1 cl: <br />cc: Sear Cval Cgmpanv <br />i~~ ~ <br />:r - <br />.... <br />NOV18 <br />f <br />1985 <br />`~~ l <br />^ <br />~r <br />~ <br />r,p <br />. <br />,~,.~ ~~~' <br />J <br />, . <br />QGi <br />t ,'1; <br />:~ ,' <br />~ <br />~~ <br />~'J~;'CC <br />J <br />