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E PRIORITY ENVIRONMENTAL LABS <br /> L Precision Environmental Analytical Laboratory <br /> December 24 , 1996 PEL # 9612043 <br /> WRIGHT ENVIRONMENTAL SERVICES <br /> Attn• John Alfonso <br /> Re: Three water samples for Gasoline/BTEX with MTBE analysis . <br /> Pro3ect name: Tracy High School <br /> Date sampled: Dec 19 , 1996 Date submitted: Dec 20, 1996 <br /> Date extracted: Dec 20-22 , 1996 Date analyzed: Dec 20-22 , 1996 <br /> RESULTS : <br /> SAMPLE Gasoline MTBE Benzene Toluene Ethyl Total <br /> I .D. Benzene Xylene <br /> (ug/L) (ug/L) (ug/L) (ug/L) (ug/L) (ug/L) <br /> T-1 N.D. N.D. N.D. N.D. N.D. N.D. <br /> T-2 N.D. N.D. N.D. N. D. N.D. N. D. <br /> T--3 N. D. N.D. N.D. N. D. N. D. N.D. <br /> Blank N. D. N. D. N. D. N. D. N. D. N. D. <br /> Spiked <br /> Recovery 104 . 4% --- 97 . 7% 104 . 7% 88 . 90 1.00. 4% <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 /> David Duong <br /> Laboratory Director <br /> 1764 Houret Court Milpitas,vee.. CA 95035 Tel 405-946-9636 Fax: 408-946-9663 <br />