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0 <br /> AMERICAN SCIENTIFIC LABORATORIES, LLC <br /> ° Environmental Testing Services <br /> i <br /> 2520 N San Fernando Rd Los Angeles, CA 90065 Te! (323)223-9700 Fax (323)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 Stolin <br /> Page 2 <br /> Project ID 1232 Job Number Order Date Client <br /> Project Name MW- Unocal Stockton 12644 12/12/2001 EAr <br /> Method 8015M/8021B, TPH as Gasoline and BTEX + MTBE <br /> Batch No 121301-1 <br /> Our Lair I D 78182 <br /> Sample ID OX-]A <br /> Date Sampled 12/11/2001 <br /> Date Extracted 12/13/2001 <br /> Preparation Method <br />�I <br /> Date Analyzed 12/13/2001 <br /> Matrix Air <br /> is uL/L <br /> etection Limit Multiplier 1 <br /> Analytes PQL Results <br /> Benzene f 0 10 ND <br /> Ethylbenzene 0 10 ND <br /> Toluene(,'vlethyl benzene) 0 10 ND <br /> Xylenes, total 0 20 ND <br /> MTBE 0 5o ND <br /> TPH as Gasoline(C4-C12) 10 ND <br /> Our Lab I D 78182 <br /> Surrogates KConLmm-it $ Rec <br /> Surrogate Percent Recovery <br /> Bromofluorobenzene 70-120 107 <br /> QUALITY CONTROL REPORT <br /> Batch No 121301-1 <br /> MS MS DUP RPI] MS/MSD MS RPD <br /> Analytes %REC %REC % % Limit %Limit <br /> Benzene 95 99 4 1 75-120 15 <br /> Toluene(Methyl ben?enc) 98 103 5 0 75-120 15 <br />