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= = ENVIRONMENTAL <br /> Analytical Chemists <br /> June 27, 1996 ORGANIC Quality Assurance Report for sample: 633204 <br /> Duncan Keir <br /> 1103 Grant Line Court <br /> Modesto , CA 95350 <br /> BATCH EPA FALIBRATION QA/QC METHOD QA/QC <br /> Constituent ID Method Units Type Conc. % REC AR NOTE Type Conc. % REC % REC AR % DIF MAV NOTE <br /> TPH-Gas DQ13A 8015M Mg/t. CCV 2.50 85.5 75-125 MS 2.50 71.6 59.5 75-125 18.6 20.0 410 <br /> BFB OL 3A 602/8020 ug/L CCV 20.0 114 75-125 MS 20.0' 89.0 95.8 75-125 7.4 20.0 <br /> Benzene OL 3A 602/8020 ug/L CCV 5.00 90.7 75-125 MS 5.00 85.9 76.0 75-125 12.3 20.0 <br /> Totuene OL 3A 602/8020 ug/L CCV 5.00 91.2 75-125 MS 5.00 124 73.9 75-125 50.7 20.0 410 <br /> Total xylenes OL 3A 602/8020 ug/L CCV 15.0 92.5 75-125 MS 15.0 95.1 75.0 75-125 23.6 20.0 410 <br /> Ethyl Benzene OL 3A 602/6020 ug/L CCV 5.00 95.7 75-125 MS 5.00 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 Diffqrence (RPD) not within <br /> Maximum Allowable Value (MAV) . Batch qualified based on the LCS, CCV, or ICV recovery. <br /> FGL ENVI MENTMa <br /> CJ: 'g c Charles John B.S. , QA/QC Officer <br /> rn <br /> Offices� Office&_Laboratory Field Office <br /> P.O.Box 2721853 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:(209)942-0181 Mobile:(209)737-2399 <br /> FA)(-JPOr5)59F-4179 FAY,t9f141 A49-049q FAX• 714 Wir <br />