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..' �. <br /> 1-4 <br /> F <br /> Alpha Analytical Laboratories Inc. . 860 Waugh Lane, H-1, Ukiah, California 95482 <br /> (707) 468-0401 <br /> f <br /> September 24 , 1992 <br /> Mr. '1 Bob Marty 0 C T 0 p 1$92 <br /> Geological=Audit-Services --- -._.. <br /> �"�1\IVlF�(JN�IENTAI� HEALTH <br /> 1803 W. March Ln. <br /> PER��� � f � <br /> Suite A I <br /> Stockton CA 95207 <br /> Subject: Quality Control Report <br /> } CC BATCH NUMBER - CWH 10081 <br /> TEST DATE- - 7/6/92 <br /> MATRIX = WATER <br /> :Method Matrix Duplicate <br /> Blank Spike Spike <br /> Recovery Recovery Recovery RPD <br /> Benzene ND 86. 7 82 . 8 4 . 6 <br /> Toluene ND 85. 4 81 . 9 4 . 2 <br /> Xylenes ND 84 . 8 80. 9 4 .7 t <br /> Ethlybenzene ND 84 . 5 80 . 6 4 .7 <br /> Gasoline ND .98 . 1 106 7 . 7 <br /> Lead (702-5-2) ND -- --. -108 - - 94 . 2 13. 6., <br /> OC BATCH NUMBER - CWH 10079 <br /> :i <br /> TEST DATE - 7/1/92 <br /> H <br /> F MATRIX - SOIL <br /> Benzene ND 81. 2 77 . 0 5. 3 k <br /> Toluene ND 82 . 4 77 . 6 6. 0 <br /> Xylenes ND 79 . 8 75. 2 5. 9 <br /> Ethylbenzene ND 76. 4 71. 5 6. 6 <br /> Gasoline ND 102 104 1. 9 <br /> E <br /> Lead ( (630-27-2) ND 92 . 5 95. 5 3 . 2 1 <br /> Note: This batch passes method quality control acceptance <br /> 1 <br />