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y k%, KLEINFELDER <br /> 0 <br /> 3.1.1. Soil Sampling procedures <br /> soil samples will be collected <br /> for chemical analysis and to complete <br /> lithalogic logs. Samples will be collected at 5-foot intervals starting <br /> i <br /> at a depth of 5 feet below the ground <br /> surface, Sample collection will, <br /> proceed toa depth wheregr <br /> water is uir petroleum <br /> h <br /> are not in=cated in two consecutive sampling in S•' <br /> Ito a point <br /> soil samples will be collected by advancing the boring <br /> a Modified {. <br /> immediately above the sampling depth and then driving <br /> California Sampler lined with three brass tubes into the undisturbed <br /> soil. The sampler will be renwed from the bottom of the boring and the <br /> bottom leading tiube sealed with alumi.rmm foil and tight-fitting plastic <br /> .1 <br /> caps. The sealed tube will be labeled and immediately stored in a cooler <br /> at 40C. At the end of drilling operations, select soil samples will be <br /> delivered under cbain-of-custody to a state certified analytical <br /> soil samples will be retained by Kleinfelder <br /> laboratory. The remaining <br /> E <br /> for .60 days in refrigerated storage for future reference or analysis. <br /> 3,1.•2 Qualitative Field Screening <br /> A photovac TIP, using a photoionization detector (PID) sensitive to <br /> line related compounds, will be used to screen each <br /> aromatic and other Baso , <br /> E soil sample collected from the soil borings, Calibration will be <br /> performed prior to use in the field using a 100 ppm iscbutylene <br /> calibration gas The field screening of the soil samples with the PID is <br /> intended to provide a qualitative indication of the presence of petzvleuam <br /> hens. Selection of soil samples to be submitted for chemical <br /> analysis will be based on the PID results. The screening procedure will <br /> x <br /> 3 29-8803 9 <br /> I . <br />