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• If deemed necessary a trip blank may be placed in each cooler containing volatile organic <br /> compounds (VOCs). <br /> • Place ice (or Blue Ice) inside the cooler to chill the samples to 4°C (+1-2°C). <br /> • Seal the cooler with tape and custody seals so that the cooler cannot be opened without <br /> breaking the seal. <br /> In order to prevent breakage while packaging or shipping samples, packaging options are listed <br /> below. <br /> • Wrap samples in bubble wrap or other suitable packaging materials, and seal around the <br /> containers with tape. Protective wrap is not required for plastic containers, but take care <br /> when packing the coolers so that the containers do not directly touch each other. <br /> • Place two to four inches of inert packaging material on the bottom of the cooler. Place the <br /> bagged containers inside the cooler so the bottles do not touch each other. Place cooling <br /> material (e.g., bagged ice, blue ice) around and between the samples. Completely fill any <br /> remaining space with additional inert packaging material such as vermiculite or cellulose <br /> insulation. <br /> D.2. LABORATORY QUALITY ASSURANCE/QUALITY CONTROL <br /> Internal quality control procedures for the laboratory analytical methods are specified in the <br /> SW-846 and EPA methods. These specifications include the type of QC checks required which <br /> include: method blanks, reagent/preparation blanks, matrix spike and matrix spike duplicates, <br /> calibration standards, internal standards, surrogate standards, the specific calibration check <br /> standards, laboratory duplicate/replicate analysis. Field duplicates and field QC blanks will be <br /> collected and analyzed to assess precision and bias. The laboratory that is selected to perform <br /> the analyses will have a QC program to ensure the reliability and validity of the analyses <br /> performed. <br /> All data obtained will be properly recorded. Any samples analyzed in nonconformance with the <br /> QC criteria will be reanalyzed by the laboratory, if sufficient volume is available. Sufficient <br /> sample volumes (excess material) will be collected to allow for re-analysis, when necessary. <br /> D.2.1. DATA REDUCTION,VALIDATION,AND REPORTING <br /> The laboratory procedures for data reduction, validation, and reporting are to be included in <br /> the laboratory QAPP. Data reduction, validation, and reporting by the laboratory will meet the <br /> criteria needed to facilitate internal data validation. Descriptions of internal QC checks and <br /> data validation procedures are as follows. <br /> Daub &Associates, Inc. Page D-2 Natural Soda LLC 2022 SAP <br />