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Page 1 of 1 <br /> Vicki McCartney [EH] <br /> From: Vicki McCartney [EH] <br /> Sent: Tuesday, October 16, 2012 2:55 PM <br /> To: 'Delgado, Jeff@Waterboards' <br /> Subject: Boring Logs and Soil Analytical Data for 620 Charter Way in Stockton <br /> Attachments: Soil Analytical Data 620 Charter Way.pdf <br /> Jeff, <br /> have appended in this and additional emails the following information that you requested during our <br /> telephone conversation today concerning Shell-branded Service Station located at 620 Charter Way in <br /> Stockton, California: <br /> • Soil analytical data for SB-1 through SB-8; tank pull; MW-1 through MW-11, MW-13 through MW- <br /> 15; and CPT-1 through CPT-5, CPT-14, CPT-15, CPT-17 and CPT-18; <br /> • Boring logs for SBA through SB-8; <br /> • Boring logs for MWA through MW-11, MW-13 through MW-17; and <br /> • Boring logs for CPT-1 through CPT-23. <br /> (Please note that there is no MW-12.) <br /> Please let me know if you need site maps to locate the borings. <br /> I misspoke during our�telephone conversation today. What I should have said was that Conestoga- <br /> Rovers&Associates(CRA)stated in Feasibility Study& Corrective Action Plan, Section 4.1, dated 12 <br /> October 2011, that the horizontal extent of impacted Zone B soil [45 to 50 feet below surface grade <br /> (bsg)]was defined by CPT-14, MW-6, MW-3 and MW-4 but these borings did not go to a depth of 45 to <br /> 50 feet bsg. Also CPT-1 (to the east, not west), CPT-2 and CPT-21 all had high concentrations of <br /> contaminants of concern in soil around 50 feet bsg. Also in Section 4.2.2, CRA stated that"The extent of <br /> Zone B dissolved constituent impacted groundwater is defined by data from CPT-8 to the west, CPT-7 <br /> and CPT-18 to the southwest and south, CPT-6 to the southeast, well MW-14-50 to the west, and CPT-12 <br /> to the northwest." However, MW-14-50 is really to the east/southeast, and CPT-12 is really to the <br /> northeast, not northwest. This means that there is no soil or groundwater data for Zone B to the <br /> north/northwest. <br /> Vicki McCartney, Senior REHS <br /> San Joaquin County <br /> Environmental Health Department <br /> 1868 East Hazelton Avenue <br /> Stockton, California 95205 <br /> Phone: (209)468-9852 <br /> Email: vmccartney(c2'-)sicehd.com <br /> I <br /> i <br /> i <br /> 10/16/2012 <br />