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r <br /> CALIFORNIA LABORAYSERVICES Environmental chemistryna <br /> APEX Envirotech Inc. 04/04/2002 <br /> 5330 Primrose Dr. . <br /> #100 <br /> Fair Oaks, CA 95628 <br /> Attention: Kasey Jones <br /> Reference: Analytical Results <br /> Project Name: Former P.E. O'Hair Site CLS ID No. : T6676 <br /> Project No. : REXO1.001 CLS Job No. : 846676 <br /> Date Received: 03/28/2002 <br /> Chain Of Custody: 36320-1 <br /> The following analyses were performed on the above referenced project: <br /> No. of Turnaround <br /> Samples Time Analysis Description <br /> 17 5 Days TPH Gas,BTEX,Oxygenates(5) ,EDB & 1,2-DCA <br /> These samples were received by CLS Labs in a chilled, intact state and <br /> accompanied by a valid chain of custody document. <br /> Calibrations for analytical testing have been performed in accordance to and <br /> pass the EPA's criteria for acceptability. <br /> Although Sample 11GP-3 @ 20' was found to contain compounds in the retention <br /> time range generally associated with TPH/Gasoline, the chromatogram for this <br /> sample was not consistent with the expected chromatographic pattern or <br /> "fingerprint. " However, the reported concentration is based on TPH/Gasoline <br /> calibration. <br /> Analytical results are attached to this letter. Please call if we can <br /> provide additional assistance. <br /> Sincerely, <br /> c <br /> James iang, Ph.D. <br /> Laboratory Director <br /> 3249 Fitzgerald Rd Rancho Cordova,CA 95742 www.californialab.com 800-638-7301 916-638-7301 Far: 916-6384510 <br />