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ROY F WESTON, INC. <br /> STOCKTON ANALYTICAL LABORATORY <br /> ANALYTICAL CASE NARRATIVE <br /> Client AREG - MAJOR MART <br />' RFW# 93085597 <br /> Test 602-PURGEABLE AROMATICS (BTEX) <br /> 1 This narrative covers the analysis of three (3) water samples in accordance with <br />' protocols based on EPA method 602. <br /> 12 The analytical holding time for this analysis was met <br />' 3 The continuing calibration criteria was met for this analysis with the exception of <br /> Benzene (-24%) on the end of the run standard for samples MW-1 and MW-5 No <br /> samples were analyzed after this standard. <br /> 4 The method blanks associated with these samples did not contain any target analytes <br />' at, or above, the reporting limits <br /> 5 Surrogate recoveries were within Laboratory QC limits <br />' 6 Blank spike recoveries were within Laboratory QC limits <br /> 7 Matrix spike analysis was not requested by the client <br /> 8 Retention times were within QC tolerance limits <br /> 0- 21 <br /> Dale E. Gimble\Unit Leader Date <br />