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John Yoakum [EH] <br /> From: Lindsey Dandridge-Perry <LDandridge@kleinfelder.com> <br /> Sent: Wednesday,April 03, 2013 10:47 AM <br /> To: John Yoakum [EH] <br /> Cc: Karen Gale; Paolo Dizon <br /> Subject: Boring Application <br /> Attachments: 658 10050 SP-3.pdf; SCN_20130403105601.pdf;costco Permit Kleinfelder OOl.jpg <br /> Johnny, <br /> Please find attached the boring permit application and boring location map. The permit fee was paid online, confirmation <br /> number 051763. Field work is currently scheduled for April 10, 2013. The following describes the proposed scope of <br /> work for the Costco Tracy drilling. Please let me know if you have any questions. <br /> Scope of Work <br /> Soil sampling will be performed by Kleinfelder for Costco Wholesale Corporation (Costco) at the location of a proposed <br /> fuel additive UST to be installed at Costco's existing Warehouse No. 658 facility. Soil sampling is being performed in <br /> order to obtain waste profiling data to facilitate disposal of soil that will be excavated during UST installation. <br /> One soil boring will be advanced using direct push drilling methods to approximately 9 feet bgs. Soil samples will be <br /> collected from the boring at approximate depths of 2 feet, 5 feet, and 8 feet bgs(unless field observations, such as the <br /> presence of hydrocarbon or chemical staining or odor, warrant the submittal of a sample from between these intervals). <br /> Soil samples will be collected using a combination of hand-held (i.e., hand auger)and direct-push equipment. Use of <br /> direct-push equipment, such as that used with the GeoprobeTm, typically consists of driving a hollow rod into the ground to <br /> the desired depth using a hydraulic percussion hammer mounted on the back of a truck. The soil samples will be collected <br /> in 0.75-inch diameter, clear polyvinyl chloride sample sleeves that are up to 4 feet long. <br /> VOC field-screening readings will be logged, along with a visual description of the soil. The portion of the soil samples <br /> used for field screening and visual classification will not be submitted for laboratory analysis. <br /> Upon completion of sampling, the boring will be sealed with neat cement and capped with concrete to grade. <br /> The three soil samples from the Site will be submitted to a State-accredited laboratory for analysis of total petroleum <br /> hydrocarbons as gasoline (TPH-g); benzene, toluene, ethylbenzene, and xylenes (BTEX); and methyl tertiary butyl ether <br /> (MTBE). The soil samples will be analyzed using a rush, 72-hour laboratory results turnaround. <br /> Lindsey Dandridge-Perry <br /> Staff Geologist <br /> Kleinfelder <br /> 2 Ada, Suite 250 <br /> Irvine, CA 92618 <br /> p: 949.727.4466 <br /> f: 949.727.9242 <br /> c: 949.254.1264 <br /> i <br />