Laserfiche WebLink
Attachment B: Data Usability Summary and Laboratory Chemical Analytical Report <br /> Completeness <br /> Completeness is defined as the number of valid results(i.e.,those not rejected)divided by the <br /> total number rejected. Based on this evaluation of the data against the QC objectives,the <br /> percentages of valid data for each method are 100 percent. <br /> Comparability <br /> Based on the data evaluation,the data are comparable with other laboratory data for similar <br /> samples and sample conditions. The sample collection techniques,EPA test methods, detection <br /> limits, analytical laboratory,units of measure, and sample preparation procedures were selected <br /> to ensure data comparability on this project. <br /> Summary <br /> Based on SAIC's evaluation, all analytical data are usable as qualified for the purpose of <br /> determining chemical concentrations in groundwater at the site. <br /> Data in this sample delivery group were qualified for low surrogate%Rs, field duplicate RPDs, <br /> and estimated concentrations reported between the laboratory's MDL and reporting limit. All <br /> qualified data is presented in Table B-1. <br /> Unless noted otherwise,analytical data collected in support of this investigation are considered <br /> precise, accurate,representative,complete, and comparable, and they may be used for their <br /> intended purposes. <br />