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e.Kssuu ':V)VXySF .f1"A <br /> h <br /> mom ME <br /> • r~ ryye <br /> "H Roy F. Weston, Inc. <br /> Stockton Laboratory <br /> Case Narrative <br /> Client: TIME OIL MANTECA <br /> RFW #: 91095149 <br /> FUMIGANTS <br /> !. This narrative covers the analysis of 4 samples in accordance <br /> with method EPA 504-modified. <br /> 2. The analytical holding time for this analysis was met. <br /> 3. Initial and continuing calibration criteria were met for this <br /> analysis. <br /> 4 . The method blank did not contain any target compounds at or <br /> above the reporting limits, but did contain an interfering <br /> peak coeluting with EDS on the RTx35 column. <br /> 5. Surrogates were not used in this analysis. <br /> 6. Blank spike recoveries and the RPD's for the blank spikes were <br /> within the advisory limits. <br /> 7. All compounds reported positive were confirmed by second. <br /> column analysis. Sample 035-TP3-E13.5 showed the presence of <br /> EDS at a concentration of 0.65 ug/Kg, but could not be <br /> confirmed on the second column because of interfering matrix <br /> peaks. <br /> D. D. Jenner Date <br /> Unit Leader <br />