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la- � g <br />Alpha Analytical Laboratories Inc. 0 860 Waugh Lane, H-1, Ukiah, California 95482 <br />CHEMICAL EXAMINATION REPORT ( 707) 468.0401 <br />Advanced Geo Environmental <br />4005 N. Wilson Way <br />Stockton, CA 95205 Date Printed Page <br />Attn: Kevin McKibben 2/24/98 2 <br />Batch Number Receipt Date Client Client P.O. Send Via <br />98-0217-005 02/17/98 09:40 ADVGEO Mail <br />METHOD EXTRACTED TEST DATE <br />(continued from previous page) <br />RESULT UNITS PQL DILUTION <br />Sample 3 71-S Eastern UST, South End <br />14' <br />ND mg/kg <br />1.00 <br />2/20 <br />2/20/98 <br />ND mg/kg <br />Khaldoon Othman, K & S Gas <br />& Grocery <br />2/20/98 <br />ND mg/kg <br />.005 <br />2/20 <br />2/20/98 <br />Sample Type: Soil Sampled by: <br />Kevin McKibben <br />Sampled: <br />2/13/98 18:04 <br />The PQL's for Benzene, Toluene, & Ethylbenzene <br />are <br />120x, Xylenes <br />360x, and MTBE 5x higher than <br />usual due to matrix <br />interferences. <br />TPH Gasoline W/BTXE <br />TPH - Gasoline <br />GCFID/5030 <br />2/19 <br />2/19/98 <br />1400 <br />mg/kg <br />1.00 <br />Benzene <br />EPA 8020 <br />2/19 <br />2/19/98 <br />ND <br />mg/kg <br />0.60 <br />Toluene <br />EPA 8020 <br />2/19 <br />2/19/98 <br />ND <br />mg/kg <br />0.60 <br />Ethylbenzene <br />EPA 8020 <br />2/19 <br />2/19/98 <br />24 <br />mg/kg <br />0.60 <br />Xylenes <br />EPA 8020 <br />2/19 <br />2/19/98 <br />230 <br />mg/kg <br />1.8 <br />Methyl Tertiary Butyl Ether <br />EPA 8020 <br />2/19 <br />2/19/98 <br />ND <br />mg/kg <br />5.0 <br />Lead <br />60'_0 <br />2/23/98 <br />20 <br />mg/kg <br />5 <br />Sample 4 T2 -N Western UST, North End 13' <br />Khaldoon Othman, K & S Gas & Grocery <br />Sample Type: Soil Sampled by: Kevin McKibben <br />TPH Gasoline W/BTXE <br />TPH - Gasoline GCFID/5030 <br />Benzene EPA 8020 <br />Toluene EPA 8020 <br />Ethylbenzene EPA 8020 <br />Sampled: 2/13/98 17:58 <br />2/19 <br />2/19/98 <br />ND mg/kg <br />1.00 <br />2/20 <br />2/20/98 <br />ND mg/kg <br />.005 <br />2/20 <br />2/20/98 <br />ND mg/kg <br />.005 <br />2/20 <br />2/20/98 <br />ND mg/kg <br />.005 <br />PQL - Practical Quantitation Limit ND - None Detected <br />* - Indicates Detection Limit altered due to Sample Dilution <br />NOTES: <br />Bruce L. Gove <br />Laboratory Director Date Printed: 2/24/98 <br />