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SPECTRA Laboratories, Inc. <br />2221 Ross 1Vay • Tacoma, WA 98421 • (206) 272-4350 <br />July 29, 1991 <br />Rittenhouse-Zeman & Associates <br />1400 14Dth Avenue N.E. <br />Bellewe, WA 98005 <br />Atm: Moin Kadri <br />Date Analyzed: 7-26-91 <br />�om�nd <br />Benzene <br />Tolueae <br />Sample <br />�� <br /><0.005 <br />0.008 <br />Sample Matrix: Soil <br />Sample Spiked: Method Blank <br />Uniu: mg/Kg <br />Applies to Spectra #'s <br />59844 & 59845 <br />Q�QALITY CONTROL RESULTS <br />GCMS Volatile Organie Analysis <br />BETX by 8240 D'uect Sparge <br />Spike Spike <br />Amount Amount % <br />A�rsl Esund Recoverv <br />0.050 C.0502 100 <br />0.050 0.0480 80 <br />Dup. <br />Spike <br />AmoUat % % <br />Enilnd Brasvs� SP� <br />0.0476 95 5 <br />0.0457 75 5 <br />Hydrocarbon Analyms, by M�ed 8015 <br />Date Extracted: 7-26-91 Date Analyzed: 7-26-91 <br />S;smR4� <br />#2 'Diesel Fuel <br />. Dup. <br />Spike Spike Spike <br />Sample Amount Amount % Amount % % <br />Br�vilt A�d F_Q]lIId ��X EQltn�_ � $P� <br /><20 448 462 103 465 104 1 <br />� <br />� � . <br />� � � <br />Mike Minner, Lab Director <br />p <br />i; <br />sr <br />