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N <br /> j From Angelica Sandoval Marin [EH] rmailto.amarinCcbsjcehd .com] <br /> Sent: Friday, March 14, 2014 12: 03 PM <br /> To: Silva, Larry <br /> r <br /> Subject: RE: 2575 Country Club Blvd, Stockton, CA Shell Oil Co. <br /> Thank you for the information submitted . I will review it and respond to you. <br /> IL <br /> Thanks <br /> Angelica <br /> Have nice weekend 0 <br /> y From : Silva, Larry [mailto: lsilva@craworld .com] <br /> Sent: Thursday, March 06, 2014 12 : 16 PM <br /> To: Angelica Sandoval Marin [EH] <br /> Cc: Silva, Larry <br /> Subject: RE: 2575 Country Club Blvd, Stockton, CA Shell Oil Co. <br /> Angelica, <br /> Please find attached the time to reach water quality objective (WQO) calculations and the residual mass in soil <br /> and groundwater calculations that were prepared for the subject site . <br /> CRA prepared time to reach WOO calculations for wells MW-5r, MW-7, MW-8, MW-15, MW-17, MW-18, and <br /> RW-1A. If a constituent of concern (COC) in a well was below its respective water quality objective (WQO) for at <br /> least the last four consecutive sampling events then CRA did not prepare time to reach WQO calculations for <br /> it. The exception was for MTBE in wells MW-8. MW-9, and MW-15 and benzene in well MW-15, where the COCs <br /> i during the last four sampling events were overall lower than WQOs. <br /> l <br /> I The COC mass remaining in soil and groundwater were calculated using the contours presented in Figures 1 <br /> through 6 and Figures 7 through 9, respectively. <br /> Here's a list of documents included in this email . <br /> &gtWoT Table 1: Soil Analytical Data <br /> &µtSSoT Table 2: Groundwater Analytical Data <br /> &µtSSoT Table 3 : Estimated Mass Remaining in Soil <br /> &µtiSSoi Table 4: Estimate Mass Remaining in Groundwater <br /> &µt8&oT Graphs: Time to Reach Water Quality Objectives <br /> &µtSSoi Figure 1-6: COCs in Soil Isoconcentration Contour Maps <br /> &µLSSoT Figure 7-9: COC Isoconcentration Contour Maps <br /> Please let me know if you have any questions. <br /> Thank you, <br /> Larry <br /> From : Angelica Sandoval Marin [EH] rmailto :amarin@)sjcehd.coml <br /> Sent: Tuesday, March 04, 2014 9 :02 AM <br /> To: Silva, Larry <br /> Subject: RE : 2575 Country Club Blvd, Stockton, CA Shell Oil Co. <br /> Ok. Sounds great. <br /> 2 <br />