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® ' AMERICAN SCIENTIFIC LABORATORIES, LLC <br /> 8 6 0 <br /> s �0 Environmental Testing Services <br /> w`� 1 2520 N San Fernando Rd, Los Angele4, CA 90065 Tel (323)223-9700 Fax (32 3)223-9500 <br /> ANALYTICAL RESULTS <br /> Ordered By <br /> Environmental Audit,Inc <br /> 1000-A Ortega Way <br /> Placentia, CA 92870 <br /> ,Telephone (714)632-8521 <br /> Attn Boris Stolen <br /> Page 2 <br /> F <br /> roject ID 1232 ab Numb <br /> Jer order ])ate Client: <br /> ro�ectName Mw/Unocal, Stockton 16391 12/13/2002 EAT <br /> Method 8015M/8021B, TPH as Gasoline and BTEX + MTBE <br /> Batch No- 121.502-1 <br /> Our Lab I,V- , 99757 99759 <br /> Sample ID OX-1 A OX-In-2A <br /> Date Sarripled 12/12/2002 12/12/2002 <br /> Date Extracted 12/15/2002 12/15/2002 <br /> Preparation Method <br /> Date Analyzed 12/15/2002 12/15/2002 <br /> Matrix <br /> Air Aar <br /> is uL/L uL/L <br /> tection Limit Multiplier 1 1 <br /> Analytes PQL Results Results <br /> Benzene 0 to ND ND <br /> 7 Ethylbenzene p 10 Nn ND <br /> Toluene(Methyl benzene) 0 10 ND ND <br /> Xylenes,total a 20 ND ND <br /> MTBE 0 50 ND ND <br /> TPH as Gasoline(C4-C12) 10 Nn ND <br /> Our Lab I D. 99757 99759 <br /> Surrogates on Limit $ Rea Rec. <br /> Surrogate Percent Recovery <br /> Bromofluorobenzene 70-120 105 97 <br /> QUALITY CONTROL REPORT <br /> Batch No: 121502-1 <br /> MS MS DUP RPD MS/MSD MS RPD <br /> Analytes %REC %RSC % %Limit %Limit <br /> Benzene 69 93 4 4 75-120 15 <br /> Toluene(Methyl benzene) 96 100 4 1 75-120 15 <br />