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u.w E.5 F li SCCH31 wd <br /> ROY F. WESTON, INC. <br /> STOCKTON ANALYTICAL LABORATORY <br /> ANALYTICAL CASE NARRATIVE <br /> Client. SAN JOAQ UIN MOS. ABATE <br /> RFW#• 9211S271 <br /> Test SW8015(MODIFIED)-TOTAL PURGEABLE PETROLEUM HYDROCARBONS <br /> 1. This narrative covers the analysis of one (1) water sample in accordance with the <br />' protocols based on The California Luft Manual. <br /> 2. The analytical hold time for this analysis was met. <br /> 3. Continuing calibration criteria was met for this analysis. <br /> 4 The method blanks associated with these samples were free of target analyte <br /> interferences at, or above, the reporting limit. <br /> 5. The surrogate recoveries were within Laboratory Q.0 Limits. <br /> 6 The blank spike recoveries were within acceptable Q.C. criteria <br /> I7 Matrix spikes were not requested by this client. <br /> 8 Retention times were within acceptable Q C. limits. <br /> I <br /> Unit Leader Date <br />