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<br />Figure 4-2 <br /> 2008 Pregnant Assays & Production <br /> -O-n„e P-1 . vas CO3 Ne2Ca3 - NaCl <br /> sa, - 85 <br />p <br /> 330 <br /> .5 <br />Z <br />.. 305 <br />O <br /> 280 tVtp <br /> 255 as <br />O <br /> 230 5 0 <br /> ZN <br /> 205 <br />d 45 O <br />00 al <br />a 155 33 <br /> 130 9 <br />105 - <br />- - - <br />25 <br /> <br /> <br /> <br />Figure 4-3 <br /> MTOPtodicton - VTOPiodicuon <br /> 11.000 <br /> 10000 <br />q <br /> <br />00 <br /> 9.000 <br />c <br />0 <br />u <br />P 8.000 <br /> <br />CL <br />r :9 <br /> 1.000 a <br /> <br /> <br />Natural Soda Production <br /> <br /> 105,000 <br /> 95.000 <br /> 85.000 <br /> q <br />75.000 c <br /> r <br />65,000 0 <br />55.000 <br />45.000 a <br />YS o T <br />S m 35.000 m <br /> R 125,000 <br />6,000 <br /> ° <br />rG 15,000 <br />5,000 ! - - - - - 5.000 <br /> $ ? m¢. ?qeA ? ? Q <br /> d' J? x z <br />In 2008, approximately >3.46 million gallons of water was pumped from well 90-1 with an <br />average of 63.7 gptn. <br />4.4 Geotechnica! Program <br />NSI monitors two (2) time-domain-reJlectometry monitor wells, 4A-5M and3M-TDR. These wells <br />are located between cavities ill, 611. and IA. There has been no indication of subsidence in 4A-5M <br />since installation and that has continued throughout 2008. Subsidence well 3M-TDR was drilled late <br />in 2100.x. TANrO of the fOUr TDR cables in 3M-TDR subsidence well appear to have water infiltration <br />2008 Annual Report 7 of 28