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-P E PRIORITY ENVIRONMENTAL LABS <br /> 4 <br /> f� L Precision Environmental Analytical Laboratory <br /> December 20, 1997 PEL # 9712026 <br /> WRIGHT ENVIRONMENTAL SERVICES, INC. <br /> Attn: Jonh Lynch <br /> Re: Nine water samples for Gasoline/BTEX with MTBE analysis. <br /> Project name: Cox & Cox <br /> Project location: 595 E. 11th st. - Tracy, CA. <br /> Date sampled: Dec 12 , 1997 Date submitted: Dec 16, 1997 <br /> Date extracted: Dec 16-17 , 1997 Date analyzed: Dec 16-17 , 1997 <br /> RESULTS : <br /> SAMPLE Gasoline Benzene Toluene Ethyl Total MTBE <br /> I.D. Benzene Xylenes <br /> (ug/L) (ug/L) (ug/L) (ug/L) (ug/L) (ug/L) <br /> MW - 1 N.D. N. D. N.D. N.D. N.D. N.D. <br /> MW - 2 760 63 38 110 180 N.D. <br /> MW - 3 350 33 42 48 170 N.D. <br /> MW - 4 N.D. N.D. N.D. N.D. N.D. N.D. <br /> MW - 5 N.D. N.D. N.D. N.D. N.D. N.D. <br /> MW - 6 170 0 . 7 2 . 9 1. 0 6 . 6 N.D. <br /> MW - 7 N.D. N.D. N.D. N.D. N.D. N.D. <br /> MW - 8 N.D. N.D. N.D. N.D. N.D. N.D. <br /> MW - 9 260 11 15 3 . 7 12 N.D. <br /> Blank N.D. N.D. N.D. N.D. N.D. N.D. <br /> Spiked <br /> Recovery 92 .5% 80. 7% 94 . 6% 90 . 2% 87 .7% ---- <br /> Detection <br /> limit 50 0 . 5 0 . 5 0 . 5 0. 5 0. 5 <br /> Method of 5030/ <br /> Analysis 8015 602 602 602 602 602 <br /> uong <br /> abnr--afory Director <br /> 1764 Houret Court Milpitas, CA. 95035 Tel 408-946-9636 Fax: 408-946-9663 <br />