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<br /> <br />-µ.~ <br />. <br />~ <br />~•. <br />' <br />~ <br />~ <br />i <br />+1.. ~ ,`~.~ y. <br />yam, <br />~~; <br />'d <br />... . 't~'=~:?iTj;'~~`, i.. _ :.6Ee1pf ~.,,. dSi. -;is`0•:. <br />-..2` tl.: .~~ _ <br />} <br />~ <br />~ .. ~ <br />IIIIIII III <br />IIIII <br />. <br />`~ <br />- <br />r <br />I <br />III <br />: <br />^~ <br />; ? <br />~ <br />_, <br />,~~ <br />, <br />. <br />:.~::,~ . <br />- <br />. <br />~ <br />( ~ <br />,~_ . <br />,L f <br />f <br />~ <br />Richard Holsan <br /> <br />4773 214 Rd. 1 <br />; <br />_': Silt Co. ,81652 <br />-•;_.;;:.. 876-2947 °- ... <br />' <br />. <br />p. <br />~, . <br />µ• ~' <br />..4~:' Yv..::'.....T.,1..'.;41'.>.. ill:n.`~f,~~~'~If~.l,.i.4':~J7 • .rV L.:f1=. 1. :iI /.. ~ !.1 ~I.1 ...'. <br /> <br />k <br />~ <br />,E ~~ <br />" <br />~ <br />' <br />~ - <br />. ... <br />. <br />_ _ . <br />- <br />., <br />Eastside <br />Coal Mine <br />,~~.;.::. P.O. Box .161 <br />~: <br />Silt. CO. 81652 ~ ~ ; <br /> <br /> Re: Subsidence Monitoring <br /> I certify that on February 28, 1990 I conducted a field <br /> survey to monitor the position of Subsidence Monument No. 2. ' <br /> and Monument No. e. Listed below are the results of that <br />- survey: <br />-: North Coordinate East Coordinate, Elevation <br />Monument #2 8466.260 10263.457 6753.16 <br />• Monument #8-' ~ - - ...8118:,448 .- 1025.202' - 6883.29 <br />;. <br />The survey is based on coordinates of N 8725.513, E 8958.266 <br />at the backsight point (Rebar & Cap) named Mine. This point <br />is also the benchmark for vertical control having an <br />elevation of 6347.00. Coordinates for the setup point (iron <br />-. stake near <br />tire) are N 8683.647, E 8275.055. <br />. <br />'_-- This survey meets or exceeds Second Order, Class II survey <br />standards. <br />L..~a° _ . ~.~, <br />_...- .. <br />;~. sue.Richard _L.... Holsan:3,:.5~;.~.:13501 <br />