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ENVIRONMENTAL <br /> Analytical Chemists <br /> February 19, 1997 ORGANIC Quality Assurance Report for sample: 633204 ' <br /> Duncan Keir h` <br /> 1103 Grant Line Court D� <br /> Modesto , CA 95350 p <br /> BATCH EPA CALIBRATION QA/QC METHOD QA/QC p� <br /> 1 <br /> Constituent ID Method units Type Conc. % REC AR NOTE Type Conc. % REC % REC AR % DIF MAV NOTE <br /> TPH-Gas OQ13A 8015M mg/kg CCV 2.5 85.5 75-125 MS 2-5 71.6 59.5 75-125 16.6 20.0 410 <br /> BFB OL 3A2.602/8020 m9/k9 CV 0-020_)114 75-125 MS 2 89.0 95.8 75-125 7.4 20.0 <br /> Benzene OL 3A2 602/8020 mg/kg CCV .005 90.7 75-125 MS 0.005 85.9 76.0 75-125 12.3 20.0 <br /> Toluene OL 3A2 602/8020 mg/kg CCV 0.005 91.2 75-125 MS 0.005 124 73.9 75-125 50.7 20.0 410 <br /> Total Xylenes OL 3A2 602/8020 mg/kg CCv 0,015 92.5 75-125 MS 0.015 95.1 75.0 75-125 23.6 20.0 410 <br /> Ethyl Benzene OL 3A2 602/8020 mg/kg CCV 0.005 95.7 75-125 MS 0.005 91.0 79.0 75-125 14.1 20.0 <br /> FGL ID = 19960625 N/A => Not Applicable NOTE => See note indicated below. <br /> Notes: <br /> 410 Matrix Spike (MS) not within Acceptance Range (AR) and/or Relative Percent Difference (RPD) not within <br /> Maximum Allowable Value (MAV) . Batch qualified based on the LCS, CCV, or ICV recovery. <br /> FGL ENVIRONMENTAL, INC. <br /> CJ:jgc <br /> Charles Johns B.S. , QA/QC Officer <br /> Corporaig Offices&Laboratory (Zfice&Laboratory <br /> Field Office <br /> Ia O-Box 272/853 Corporation Street 2500 Stagecoach Road Visalia,California <br /> Santa Paula,CA 93061-0272 Stockton,CA 95215 TEL:(209)734-9473 <br /> TEL:(805)659-0910 TEL:(2091942-0181 Mobile-(209)737-2399 <br /> '111111 "1- - i <br />