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Roy F . Weston, Inc . - Stockton Laboratory <br /> Case Narrative <br /> Client: YAMADA BROS. INC. <br /> LP # : 11618 <br /> FUMIGANTS <br /> 1 . This narrative covers the analysis of one sample in accordance <br /> with EPA 564 protocol. i <br /> 2 . The analytical holding time for this analysis was met. <br /> 3 . Initial calibration .criteria was met for this analysis . Contin- <br /> wing calibration criteria was met for this analysis , with the ex- <br /> ception of 'the end-of-run standard for EDB on the RTx5 column, <br /> which shows less sensitivity. The result was reported from the <br /> RTx35 column. <br /> 4 . The method blank did not contain any target compounds above the <br /> reporting limits, however it did contain an interfering peak co- <br /> eluting with EDB on the RTx35 column. <br /> 5 . Surrogates were not used in. this analysis . <br /> 6 . The blank spikes recoveries were within acceptable interim lab- <br /> oratory limits . ' The RPD for the spikes was within acceptable <br /> limits . 1 <br /> 7. All compounds reported positive were confirmed by second column <br /> analysis . <br /> D. Jenner Date <br /> Unit Leader <br /> i <br />