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EAIGEO <br /> INCORPORATED <br /> Since all groundwater sampling equipment is dedicated, field blanks will be collected rather than <br /> equipment blanks. Field blanks will consist of analyte free water that is transported from the <br /> analytical laboratory to the sampling site. The analyte free water is decanted into the organic <br /> sample containers in the field at a sample collection point. For inorganic parameters, de-ionized <br /> water will be used to prepare the blank. The samples will not be identified as blanks on the <br /> sample labels. <br /> Travel blanks will be placed in each cooler to accompany field sample containers during <br /> shipment to and from the laboratory. Travel blanks will be for VOC analysis only, if needed, <br /> and will be prepared by the laboratory. <br /> The Workplan targets 100 percent data completeness. However, some loss may be expected due <br /> to laboratory error, insufficient sample volume, or samples broken in shipping. In most cases, a <br /> minimum of 90 percent data completeness should be expected. <br /> The laboratory should ensure that data reported is precise and accurate. The precision of data is <br /> a measure of the reproducibility of the measurement when an analysis is repeated. It is reported <br /> in Relative Percent Difference(RPD) or Relative Standard Deviation(RSD). The accuracy of an <br /> analysis is a measure of how much of the constituent actually present is determined. It is <br /> reported as percent recovery. <br /> Laboratory data should be reported in standard units. To ensure samples are analyzed in a <br /> consistent manner, key personnel should participate in a training program. Laboratory staff must <br /> demonstrate proficiency in all the required laboratory activities that they conduct. <br /> 4943.4.640.01 <br /> April 17, 2007 16 <br />