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ARCA��S San Joaquin County <br /> Department of <br /> Environmental Health <br /> March 28, 2013 <br /> collected using a core barrel sampler designed to operate with the direct push <br /> drilling rig. <br /> The soil samples to be collected adjacent to the fuel dispensing area and the <br /> piping will be collected by driving a brass-tube lined sample container into <br /> undisturbed soil at selected depth intervals using a hand operated slide hammer. <br /> The soil will be logged continuously by an ARCADIS field geologist and classified <br /> to the United Soil Classification System (USCS). Soil samples will be collected <br /> and screened in the field for the presence of organic vapors with a 10.6 eV lamp <br /> photoionization detector (PID). Soil type, PID readings, and soil sample intervals <br /> will be recorded on soil boring logs; <br /> 7. The soil samples will be collected in new, clean sample containers for the <br /> requested analysis. The soil samples collected for laboratory analysis will be <br /> collected in accordance with US EPA SW846 method 5035 field preservation <br /> protocols. Following collection, samples will be placed in an ice-chilled cooler <br /> and transported within 24 hours via strict chain-of-custody protocol to a certified <br /> laboratory, for analysis via a standard 7 business day turnaround time. Samples <br /> will be analyzed for the following compounds: total petroleum hydrocarbons as <br /> gasoline, diesel, and motor oil (TPHg, TPHd, and TPHmo) via method EPA test <br /> method 8015, benzene, toluene, ethylbenzene, and total xylenes, and methyl <br /> tertiary-butyl ether(MTBE) via EPA test method 8260B <br /> 8. In accordance with SJCDEH requirements, investigation derived waste (soil <br /> cuttings and wastewater) will be placed in 55-gallon drums and staged at an <br /> approved location on-site pending collection and transportation for disposal at <br /> licensed disposal facility in accordance with applicable regulations. Such <br /> disposal will be arranged following the receipt and interpretation of sample data <br /> from the laboratory. A separate cost estimate will be provided for the <br /> classification, handling, transportation and disposal of any investigation derived <br /> waste generated, if applicable. The soil boreholes will be backfilled to grade in <br /> accordance with SJCDEH regulations. <br /> Schedule <br /> The field work activities are anticipated to begin on April 8, 2013 and should take 2 <br /> days to complete the work. <br /> Use or disclosure of information contained on this sheet is subject to the restriction and disclaimer located on the <br /> signature page of this document. <br /> Page: <br /> Drillign permit Trnsmittal SJTD-ARCADIS 2013-03-28.docx 3/4 <br />