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TABLE <br /> Page 9 of 9 <br /> GROUNDWATER DATA <br /> FORMER SHELL CENTRAL VALLEY CRUDE OIL PIPELINES <br /> CORDESRANCH <br /> TRACY,CALIFORNIA <br /> d=Due to laboratory error,silica gel clean-up not performed. <br /> e—RPD of the LCS and LCSD exceeds the control Eurits <br /> I=Split Sample 9/1819/2012 by Calscience <br /> g-Split sample 9/1819/2012 by Test America <br /> /=Estimated concentration due to surrogate recovery being below acceptable control B <br /> k=The chromatographic pattern was inconsistent with the profile of the reference fuel standard. <br /> The formula:TOC+(sph thiclmess(0.8))-DTW was used for groundwater elevation <br /> Zone A=Well screen interval 30 to 50 ft bgs. <br /> Zone B=Well screen interval 105 to 125 ft bgs. <br /> Zone C=Well screen interval 160 to 177 ft bgs. <br /> «,aom W) <br />