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point immediately above the desired sampling depth and then driving a stainless steel <br /> hand sampler, lined with a single stainless steel tube, into the undisturbed soil. The <br /> sampler is then removed from the boring. The ends of the tube are covered with Teflon <br /> and sealed with tight-fitting plastic caps. <br /> After the samples are collected they are individually labeled. The label includes <br /> Kleinfelder's name, job number, the date and time the sample was collected, the <br /> employee number of the individual who performed the sampling, and a unique five-digit <br /> sample identification number. A custody seal is also placed on the sample in such a <br /> way that any attempt to tamper with the sample is easily visible. <br /> E-2.4 Qualitative Field Screening <br /> An organic vapor detector, such as a Photovac TIP, using a photoionization detector <br /> (PID) or a Foxboro flame ionization detector (FID), may be used to provide a qualitative <br /> screening of each soil sample collected from the borings. The organic vapor detector <br /> measures ionizable compounds in the air in parts per million by volume (ppmv). Field <br /> calibration is performed using a calibrated span gas. Ambient air is used to set the <br /> instrument zero. A calibration form is attached. The soil contained in the cone of the <br /> sampler or in a brass tube is exposed and screened with the organic vapor detector. <br /> The vapor reading is noted as the field screening result. <br /> For the protection of the drilling crew, the organic vapor detector is also used to <br /> measure the volatile concentrations in the breathing zone prior to and while drilling. <br /> Total ionizable hydrocarbon readings in excess of one ppmv may necessitate <br /> respiratory protection for the affected crewmembers. This requirement is included in the <br /> complete field health and safety plan developed for the project prior to the start of <br /> fieldwork. <br /> E-2.5 Sample Handling <br /> I stored in an iced cooler for transport to <br /> After labeling, the sample Is immediately p <br /> Kleinfelder's office sample control or to the analytical laboratory. A Kleinfelder chain-of- <br /> custody form is attached to the cooler. The chain-of-custody form includes Kleinfelder's <br /> name, address and telephone number, the employee number of the individual who <br /> r <br /> 125819.E01/STO13R0732 Page E-2 December 11, 2013 <br /> Copyright 2013 Kleinfelder <br />