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Soil samples will be collected in either 8 -once widemouth <br />clear glass jars provided by the laboratory or in clean <br />brass or stainless steel tubes (Table 1). Screw on caps <br />will be fitted with teflon liners. Tubes will be tightly <br />capped and sealed. <br />3.0 Quality Control Field Samples <br />A QC program independent from the laboratory's program will <br />be instituted. The program entails "blind" submittals to <br />the laboratory of blank' and duplicate samples. No spiked <br />samples will be supplied from the field for this <br />investigation. The laboratory in-house QC program will <br />include analysis of 'spiked samples. All QC samples will be <br />assigned independent. sample numbers and made <br />indistinguishable from non QC samples. <br />When sampling groundwater, travel blanks will be used to <br />detect the introduction of contaminants- during <br />transportation from the field to the laboratory. The travel <br />blanks will be provided by the analytical laboratory. They <br />will be taken to the :field and accompany the collected <br />groundwater samples to the laboratory for analysis. The <br />blanks will consist of deionized .water and analytically <br />confirmed organic -free water. The blank is numbered, <br />packaged, and sealed in the same manner as the other <br />samples. <br />Ten percent of the water',samples submitted to the laboratory <br />for analysis will be duplicates. Water sample duplicates <br />will be created by filling two sample bottles from the well <br />bailer. If more than one bailer volume is required, each <br />bailer volume will be split between containers. <br />4.0 Sample Preservation <br />Sample containers will be pre -cooled and transported to the <br />site in the cooler. All samples will be preserved as <br />indicated on Table 1 and placed in a cooler immediately <br />after collection. Chemical ice sealed in plastic bags will <br />be used in the cooler to cool and maintain samples at a <br />temperature of 4°C. A high -low thermometer will accompany <br />the samples to document transport conditions. Further <br />discussion of samples:preservation is included in the <br />sampling protocols (Sections 11 and 12). <br />5.0 Chain -Of -Custody Procedures <br />5.1 Sample Labels <br />Each sample container will be labeled prior to filling to <br />prevent misidentification. The label will contain at least <br />the following information: <br />- Sample number which uniquely identifies the sample <br />