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<br /> <br />1 <br />TABLE 1 <br />Southfield Mine <br />SEMI-ANNUAL SUBSIDENCE MONITORING DATA SUMMARY <br />PERIOD: JANUARY 1 -JUNE 30, 1998 <br />FLORENCE WATER LINE <br />Original Survey Dates: 5185, 10/87, 1185, 5/96 <br />Prevbua Survey Dete: 1/98 <br />Letes[ Survey Dete: 6/98 <br />Change from Original Survey <br />Change from P2vious Survey <br />Monument Latest Survey Vertical Horizontal ~ Previous Survey Vertical Horizontal <br />No. Elevation Ft Cha Ft Cha Ft Elevation Ft Ch Ft Cha a Ft <br />B 6,432.04 0.04 0.48 6,431.88 0.16 0.45 <br />C.' .. . '::6:477.70::::::.': .:. -0:43.::.: ......0.84 ...... .: ::....::':.' ~. <br /> <br />D <br />6,553.79 - <br />0.68 <br />0.58 <br />6,553.52 <br />0.27 <br />0.62 <br />E ::...:.. ::...: 8;631;67 :! :::: -1:96: ' : ::.0:94:'::: :. .:: ; :'. ;,:, :6.#131,38,:.:.: . ' ; 0:28 .::...,.; ..:: 1;0$ ! ! :: <br />F 6,297.13 -1.77 0.39 8,29fi.79 0.34 0.36 <br />., . <br />G;::'.::::'..: <br />. ;:: 6;261.:75:::::: <br />:::.:3i8R.:;'::: <br />::::.0.53 ::::: <br />::: <br />:::::.!::..8:...:,39.:::.:::. <br />:::.:0.38':..::: <br />:..:.:..:.0.48:: <br />H 6,239.29 -0.99 0.30 6,238.88 0.41 0.53 <br />I..:::::: :: ':::8:208:3.1::::.' . : ' ' -3:00 .::.:..:: :...::...0:48,,,'..::: :' :.8:205 86 ::::.:.;. ..: ' :::0.48:.' ..: ::; :.:0.95 :.:..: <br />CV Joint N%A N/A N/A 6,258.62 N/A WA <br />THOMPSON RANCH STRUCTURES <br />Original Survey Dele: 5165 <br />Prevbue Survey Date: 1/66 <br />Latest Survey Date: 8198 <br />Change from Original Survey Change from Previous Survey <br />Latest Survey Vertical Horizontal Previous Survey Vertical Horizontal <br />Stnx~ure Elevation Ft Cha Ft C Ft Elevation Ft Cha Ft C Ft <br />N. House 6,367.44 0.09 0.10 6,366.91 0.53 0.36 <br />,. <br />S House:..:::.. 6,372:13 ::.::..: D:7g ::: <br />.. ::.0:'1;1::::. <br />:::.: ' ::.:13;37.7.;53. :! : <br />: 0.80: ::.. 27.25.:::: :. <br />Bam 6,383.55 0.15 0.15 6,382.92 0.63 0.36 <br />CREEK POINT <br />Original Survey Date: 5/65, 12/96 <br />Previous Survey Dete: 1/88 <br />Latest Survey Date:6/98 <br />Change from Original Survey <br />Latest Survey Vertical Horizontal <br />Elevation (Ft) Chance (Ft) Chance (F1 <br />Change from Previous Survey <br />Previous Survey Vertical Horizontal <br />Elevation (FO Chance (Ft) Chanoe (FI <br />-0.02 <br />NOTE: N/A = No Dana <br />