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R <br /> uuuF 1 pE ri,Enlp+Alav! <br /> I <br />-6 <br /> I <br />' ROY F WESTON, INC. <br /> STOCKTON ANALYTICAL LABORATORY <br />' ANALYTICAL CASE NARRATNE <br />' Client- San Joaquin County <br /> RFW #: 9304S564 <br /> TOTAL EXTRACTABLE HYDROCARBONS FINGER PRINT <br />' 1. This narrative covers the analysis of 5 samples in accordance with protocols based <br /> on California LUFT Manual-Modified, October 1989. <br />' 2. The analytical holding time for this analysis was met. <br /> 3. Initial and continuing calibration criteria were met by the standards associated <br /> with the samples covered by this report. <br />' 4. The method blank associated with this sample did not contain any target <br /> compounds at or above the reporting linut. <br />' 5 Surrogate recoveries for n-Eicosane were within advisory hmits. Recoveries for n- <br /> Undecane were not calculated because this surrogate has not been completely <br /> evaluated. <br />' 6. The recovery for the blank spike was within advisory limits. <br />' 7 Matrix spikes were not performed on any of the samples covered by this report <br /> lie 15ale E Gimble /Unit Leader Date <br /> I <br />