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ARCADIS Mr.Timothy A. Cazier <br /> August 4,2014 <br /> Table 1 -Depth to Water and Sodium Concentrations for Holcim-Portland Quarry <br /> Monitoring Wells <br /> Table 2—Bulk Concentration Range for Potassium and Sodium Oxides in Cement <br /> Kiln Dust <br /> Table 3—Historical Potassium to Sodium Ratios in Water Samples at Cement Plant <br /> Sites <br /> Figure 1 —Holcim Portland Quarry Groundwater Flow Map(March 2014) <br /> Figure 2—Monitoring Well MW-7 Sodium and Depth to Water Over Time <br /> Figure 3—Monitoring Well MW-13 Sodium and Depth to Water Over Time <br /> Attachment 1 —DRMS Approval Letters for Groundwater Monitoring Plan <br /> Attachment 2—Well Construction and Geologic Logs <br /> copes: <br /> Justin Andrews, Holcim(US) Inc. <br /> Lauri Yusko,ARCADIS <br /> File <br /> Page: <br /> C tUcenyv'dD+anaN:ilolcin901/ARV7^.admr120U M0+1 Pmpad M Wma.o Na ham Gnund..b.I Iona-mg-�.yAL.Jocx 4/4 <br />