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I CASTLE ANALYTICAL LABORATORY <br /> Environmental Testing Services 2333 Shuttle Drive,Atwater,CA 95301 Phone (209)384-2930 <br />' Certificate#2480 Fax (209)384-1507 <br /> Advanced GeoEnvironmental Inc Clrent Project ID Pacific Pride-West Lane Sampled 10-09-03 <br /> I of Northern California Reference Number 6211 Received 10-14 03 <br /> 837 Shaw Road Sample Description Soil Extracted 10-15-03 <br /> Stockton CA 95215 Sample Prep/Analysis Method EPA 5030/8260 Analyzed 10-17-03 <br /> Attn Tim Cuellar Lab Numbers 6211-11S 13S 14S, 155, 16S Reported 10-30-03 <br /> I <br /> GASOLINE ADDITIVES BY EPA METHOD 8260 GUMS <br /> IANALYTE REPORTING SAMPLE ID SAMPLE ID SAMPLE ID SAMPLE ID SAMPLE ED <br /> LIMIT P9-60 P10-15 P10-25 P10-35 P10-45 <br /> (mg/Kg) (mg/Kg) (mg/Kg) (mg/Kg) (mg/Kg) (mg/Kg) <br /> FUEL OXYGENATES <br /> IMethyl tert-Butyl Ether(MTBE) 0 010 NO 0 064 NO ND ND <br /> Di-isopropyl Ether (DIPS) 0 010 NO ND NO NO ND <br />' Ethyl tert-Butyl Ether (ETBE) 0 010 NO ND NO ND ND <br /> tert-Amyl Methyl Ether(TAME) 0 010 ND ND ND ND NO <br />' tert-Butanol(TBA) 0 800 NO ND ND NO ND <br />' VOLATILE HALOCARBONS <br /> I <br /> 9 2-D;chlorcethane (1 2-OCA) 0 010 NO NO NO ND NO <br />' Ethylene Drbromide (EDB) 0 010 NO NO NO ND LVD <br /> Report Limit Multiplication Factor 1 1 1 1 1 <br /> I <br /> I <br />' Surrogate Recoveries <br /> 1,2-DicNoroethane-d4 704% 733% 106% 731% 732% <br /> Toluene-d8 614% 597% 941% 607% 637% <br />' Instrument ID HP 5972 MS <br /> Analytes reported as NO were not detected or below the Practical Quantitation Limit <br /> Practical Quantitation Limit= Reporting Limit x Report Limit Multiplication Factor <br /> mg/Kg = millrgrams per kilo m or parts per million(ppm) <br /> I <br /> . ANALYST APPROVED BY <br />' Clark J Cane Jams d 75h-1111ps <br /> L oratory Director <br /> 1 <br />