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I1 <br /> 1 � � <br /> SIERRA <br /> The chain-of-custody form includes the project number, analysis requested, sample 1D, <br /> date analysis and the SES field person's name The form is signed and dated (with the transfer <br /> time) by each person who yields or receives the samples beginning with the field personnel and <br /> ending with the laboratory personnel <br /> A trip blank and bailer blank accompanies each sampling set or 5% tnp blanks and 5% <br /> bailer blanks are included for sets of greater than 20 samples The baler blank is prepared by <br /> pouring previously boiled water into a steam-cleaned Teflon bailer prior to sampling a well The <br /> trip and bailer blanks are analyzed for some or all of the same compounds as the ground water <br /> samples <br /> GWTRSAVIP SOP <br />