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14 <br />5.4 CHAIN OF CUSTODY AND SAMPLE TRANSPORT <br /> <br />Sample possession during all sampling efforts must be traceable from the time of collection <br />until results are reported and verified by the laboratory and samples are disposed of. <br />Sample custody procedures provide a mechanism for documenting information related to <br />sample collection and handling. The certified laboratory contracted to perform the pesticide <br />residue analyses will provide a chain-of-custody form along with a cooler, ice packs, and the <br />appropriate sample bottles. <br /> <br />Several ice packs shall be included in the cooler with the samples. The ice may be contained in <br />recloseable bags, but must contact the samples to maintain temperature. Ice packs or soft <br />packing materials shall be positioned in the cooler in a manner to prevent contact between <br />glass bottles and possible breakage. The methods of shipment, courier name, and other <br />pertinent information are entered in the "Received By" or "Remark" section of the chain of <br />custody form if the samples are shipped to a laboratory. <br /> <br />5.5 LABORATORY ANALYSES <br />All laboratory analyses shall be conducted by a State certified laboratory following United <br />States EPA-approved methods and QA/QC procedures. <br />6.3.A. - Page 179