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Y' <br />Alpha Analytical Laboratories Inc. 9 860 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 3 <br />Batch Number Receipt Date Client <br />Client P.O. <br />Send Via <br />98-0217-005 02/17/98 09:40 ADVGEO <br />Mail <br />METHOD EXTRACTED <br />TEST DATE <br />RESULT <br />UNITS <br />PQL DILUTION <br />(Sample 4 T2 -N Western UST, North End 13' <br />-- continued) <br />Xylenes <br />EPA 8020 <br />2/20 <br />2/20/98 <br />ND <br />mg/kg <br />.005 <br />Methyl Tertiary Butyl Ether <br />EPA 8020 <br />2/19 <br />2/19/98 <br />ND <br />mg/kg <br />1 <br />Sample 5 T2 -C Western UST, Center 13' <br />Khaldoon Othman, K & S Gas <br />& Grocery <br />Sample Type: Soil Sampled by: <br />Kevin McKibben <br />Sampled: <br />2/13/98 17:51 <br />* Additional notes for this Sample are printed <br />at the <br />conclusion of <br />the Results Report. <br />TPH Gasoline W/BTXE <br />TPH - Gasoline <br />GCFID/5030 <br />2/19 <br />2/20/98 <br />850 <br />mg/kg <br />1.00 <br />Benzene <br />EPA 8020 <br />2/20 <br />2/20/98 <br />ND <br />mg/kg <br />0.30 <br />Toluene <br />EPA 8020 <br />2/20 <br />2/20/98 <br />ND <br />mg/kg <br />0.30 <br />Ethy'_benzene <br />EPA 8020 <br />2/20 <br />2/20/98 <br />ND <br />mg/kg <br />0.50 <br />Xylenes <br />EPA 8020 <br />2/20 <br />2/20/98 <br />ND <br />mg/kg <br />2.0 <br />Methyl Tertiary Butyl Ether <br />EPA 8020 <br />2/20 <br />2/20/98 <br />ND <br />mg/kg <br />10 <br />Sample 6 T2 -S Western UST, South End <br />13' <br />Khaldoon Othman, K & S Gas <br />& Grocery <br />Sample Type: Soil Sampled by: <br />Kevin McKibben <br />Sampled: <br />2/13/98 17:40 <br />The PQL's for Benzene, Toluene, & Ethylbenzene <br />are 6x, <br />and <br />Xylenes 18x higher than usual <br />due to matrix interferences. <br />PQL - Practical Quantication Limit ND - None Detected <br />- Indicates Detection Limit altered due to Sample Dilution <br />NOTES: <br />Bruce L. Gove / / ✓(�CrC�S:—L�t� '— <br />Laboratory Director Date Printed: 2/24/98 <br />