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, P , E PRIORITY ENVIRONMENTAL LABS <br /> L Precision Emironmenlal Analytical Laboratory <br /> August 31, 1997 PEL # 9708049 <br /> WRIGHT ENVIRONMENTAL, INC. <br /> Attn: John Afonso <br /> Re: Three water samples for Gasoline/BTEX with MTBE and TEPH analyses. <br /> Pro3ect name: Haley Flying Service <br /> Project location: 21000 Paradise Rd. , - Tracy,CA. <br /> Date sampled: Aug 25, 1997 Date submitted: Aug 28, 1997 <br /> Date extracted: Aug 28-30, 1997 Date analyzed: Aug 28-30, 1997 <br /> RESULTS: <br /> Ir <br /> SAMPLE MTBE Gasoline Aviation Benzene Toluene Ethyl Total Kerosene <br /> I .D. Benzene Xylene <br /> (ug/L) (ug/L) (ug/L) (ug/L) (ug/L) (ug/L) (ug/L) (mg/L) <br /> MW-1 N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. <br /> MW-2 N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. <br /> .MW-3 N. D. N.D. 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. N.D. N.D. <br /> Spiked <br /> Recovery --- 81. 90 --- 82 . 5% 94 . 4% 85. 7% 94 . 2% --- <br /> Detection <br /> limit 0. 5 50 50 0. 5 0. 5 0. 5 0 . 5 50 <br /> Method of 5030 / 3510/ 3510/ <br /> Analysis 602 8015 8015 602 602 602 602 8015 <br /> David Duong <br /> Laboratory Director <br /> 1764 Houret Court Milpitas, CA 95035 Tel 408-946-9636 Fax 408-945-9663 <br />