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1 ' <br /> ROY F. WESTON, INC. <br /> STOCKTON ANALYTICAL LABORATORY <br /> ANALYTICAL CASE NARRATIVE <br />' Client: S .J MOSQUITO ABATEMENT DIST. <br /> RFW# : 9112S463 <br />' Test: EPA 602 (BTEX) Purgeable Aromatics <br />' 1 . These samples were collected on December 5, 1991 . <br /> 2 . These samples were analyzed on December 11, 1991 in accordance <br /> with SW602 . <br /> 3 . All required holding times for these samples were met. <br />' 4 . The initial and continuing verification calibration standards <br /> associated with this set of samples were within Q.C. limits <br /> with the exception of Benzene (+21%) in the beginning of the <br /> run standard and Benzene (+20%) in the end of the run <br /> standard. <br />' 5. The method blank analyzed was within Q.C. limits <br /> 6. Of the 3 surrogates analyzed , all were within QC limits. <br />' 7 . The blank spike recoveries were within QC limits. <br /> 8 . All retention times were within acceptable limits. <br /> 1 <br /> ai R. Adams ate <br /> ' Unit Leader <br /> 1 <br />