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ROY F WESTON, INC <br /> STOCKTON ANALYTICAL LABORATORY <br />' ANALYTICAL CASE NARRATIVE <br /> Client: SAN JOAQUIN COUNTY MVCD- <br /> RFW #: 9408S811 <br />' TOTAL EXTRACTABLE HYDROCARBONS <br />' 1. This narrative covers the analysis of 3 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 with <br />' the samples covered by this report. <br /> 4. The method blanks associated with these samples did not contain any target <br />' compounds at or above the reporting limit. <br /> S. Surrogate recoveries were within advisory limits. <br /> 6. The recoveries for the blank spikes were within advisory limits. The RPD for the <br />' blank spikes was within advisory limits. <br /> 7. Matrix spikes were not performed on any of the samples covered by this report. <br /> I <br /> I <br /> Dale E. Gimble/Umt Leader Date <br /> I <br />