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I <br /> SUPERIOR ANALYTICAL LABORATORY, INC <br />' 1555 BURKE UNIT I • SAN FRANCISCO CA 94124 • PHONE (415) 647-2081 <br />' C E R T I F I C A T E O F A N A L Y S I S <br /> LABORATORY NO. 80720 DATE RECEIVED 04/04/90 <br />' CLIENT Vapor Extraction Technology DATE REPORTED 04/12/90 <br /> CLIENT ,SOB NO. Stockton VES <br /> ATR ANALYSIS by modified NIOSH 1500 FOR TOTAL HYDROCARBONS <br /> & AROMATIC VOLATILE ORGANICS <br />' LAB # 3 <br /> SAMPLE MW-1 <br />' Analyte Vol- ( L ) Front ( mg ) Back( mg ) Tot_ ( mg ) ( mg/m3 ) ( Plum ) <br /> Benzene 10 <0 . 009 0 009 <0 009 <0 9 cO 3 <br /> Toluene 10 0 020 <0 009 0 . 020 2 0 0 . 53 <br /> Ethyl Benzene 10 0 12 "0 . 009 0 12 12 2 8 <br /> l� lenes 10 1 8 <0 009 1 8 180 42 <br /> lieTotal Hydrocarbon 10 7 . 7 <0 . 1 7 7 770 ----- <br /> Method Det ect2 on Limit BTEX-0 , 009 mg <br /> TPH-0 . 1 rig <br /> Q4QC Summarti <br /> IMS/MSD average Recovery =109% Duplicate RPO = 5 . 4 <br /> ITdt.a,rd R Morales <br /> Labor or anager <br /> OUTSTANDING QUALITY AND SERVICE <br />