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Geomatrix <br /> • wash and scrub in the non-phosphate detergent and potable water (first bucket); <br /> • rinse or soak in potable water(second bucket); <br /> • rinse in DI water(third bucket); and <br /> • final rinse with DI water and air dried. <br /> Decontamination water will be temporarily stored in 5-gallon buckets and transferred to a <br /> 55-gallon labeled drum at the end of each day. Decontamination water and soil cuttings <br /> generated during the investigation will be temporarily stored on-site in DOT-approved, labeled <br /> 55-gallon drums. MonierLifetile will handle and manage the disposition of the drums. <br /> 6.0 FIELD AND LABOROATRY QA/QC PROCEDURES <br /> As part of the soil investigation, standard quality assurance/quality control (QA/QC) <br /> procedures will be used during sampling and laboratory analysis. These activities are described <br /> in the following subsections. <br /> 6.1 QA/QC PROCEDURES FOR SOM <br /> Several types of QA/QC samples will be taken to assure the quality of the data obtained during <br /> and following sampling. The types of field and laboratory QA/QC samples that will be utilized <br /> during the implementation of this Work Plan are described below. <br /> 6.1.1 Field QC Samples <br /> The field QA/QC samples include equipment blanks and soil duplicate samples. These QA/QC <br /> samples are summarized below: <br /> • Equipment Blanks- Equipment blank samples will be used to evaluate the <br /> potential for cross contamination due to sample transport and sample collection. <br /> Equipment blanks primarily provide a check on possible contamination from <br /> sampling instruments used to collect and transfer samples from the point of <br /> collection into sample containers. Equipment blanks are prepared by pouring <br /> laboratory provided die-ionized water over the decontaminated sample equipment <br /> and collecting the water in the appropriate containers. Equipment blanks will be <br /> collected at a frequency of one per 20 samples collected. At a minimum, one <br /> equipment blank will be collected each day. <br /> • Field duplicates—Field duplicate soil samples will be collected at frequency of one <br /> duplicate sample per every 20 soil samples collected. At a minimum, one soil <br /> duplicate sample will be collected at each Facility during the investigation. <br /> PAI 0626.000.0\Docs\MLT Soil Work Plan.doc 9 <br />