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SIERRA <br /> I'he chain of CUStodV forni includes the piajcct ricin-ibex analysis requested sample IU <br /> date analysts and the SES field persons name The form is signed and dated (with the transfer <br /> ti110 by cacti person who Melds or iec.eives the samples bf-guintng with the field personnel and <br /> ending with the laboratory personnel <br /> A trip blank and bailer blank accompanies each sampling set or 5% trip blanks and 5% <br /> bailer blanks are included for sets of greater than 20 samples The bailer blank is prepared by <br /> pouring previously Moiled 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 /> GWS-CHE SOP <br /> s <br /> M <br />