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ARCADIS <br /> • Fourteen (including one duplicate) samples will be collected for potential analysis <br /> for PCBs using U.S. EPA Method 8082. <br /> • Seven (including one duplicate) samples will be collected for potential analysis for <br /> dioxins/furans using U.S. EPA Method 8290. <br /> • Fourteen (including one duplicate) samples will be collected for potential analysis <br /> for chlorinated herbicides using U.S. EPA Method 8151. <br /> • Twenty-seven (including two duplicate) samples will be collected for potential <br /> analysis for pH using U.S. EPA Method 9045D. <br /> Laboratory reporting limits are provided in Attachment 1 of the QAPP provided in <br /> Appendix A. <br /> 3.5.1 Analyses of Soil Samples <br /> Select soil samples will be analyzed for CAM 17 metals, chromium speciation, soluble <br /> lead, VOCs, PAHs, TPHg, TPHd, TPHmo, SVOCs, OCPs, OPPs, PCBs, herbicides, <br /> dioxins and furans, and pH. Analytical methods are specified in Table 1. Laboratory <br /> reporting limits are provided in the QAPP. <br /> 3.5.2 Laboratory Quality Control Samples <br /> As part of the standard laboratory QC protocols, the laboratory will monitor the <br /> precision and accuracy of the results of its analytical procedures through analysis of <br /> laboratory QC samples. These include samples designated for matrix spike/matrix spike <br /> duplicate (MS/MSD) analysis for organic parameters or spike duplicate (S/D) analysis <br /> for inorganic parameters. MS/MSD or S/D analysis is performed on an aliquot <br /> (portion) of a field sample selected by the laboratory under a prescribed rate. It is not a <br /> separate sample, but a special designation of an existing sample. At a minimum, one <br /> spike analysis is required for each 20 samples as per U.S. EPA protocol for definitive- <br /> level data. <br /> During sampling for aqueous matrices, double volume is required for laboratory QC <br /> purposes. For surface soil samples collected during this investigation, duplicate soil <br /> samples will be provided for laboratory QC purposes. Extra containers (if necessary) <br /> for laboratory QC purposes will be labeled with the same sample name as the primary <br /> sample. <br /> Other laboratory QC samples include method blanks, surrogates, laboratory duplicates, <br /> laboratory control samples, and dilution procedure duplicates as required in the <br /> applicable U.S. EPA-approved methods and laboratory QC systems. The laboratory <br /> will report results for these QC samples in the data packages. <br /> wp-PEA-Gordon-Jul 10-RV009808.doc: Page 21 <br />