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Cry CA <br /> (650)364 9600 FAX <br /> )3CA-9233 <br /> Sequoia �1 Nh��`kLa Drive Walnut eek CA 945983 (9z5)988 9600 FAX(925)988-9673 <br /> 819 Striker Avenue Suite 8 Sacramento CA 95834 (916)911 9600 FAX(916)921-0100 <br /> Analytical 1551 McDowell <br /> ndcD trial1Roadd North Ste D Petaluma <br /> artos 94954 0-41 1 1 (6 0)232 9600 FAX(650)232-9612 <br /> Secor Client Project ID Arco # 4932, Stockton Sampled May 26, 1999 <br /> 9912 Business Park Dr Ste 100 Sample Matrix Soil Received May 27, 1999 <br /> Sacramento, CA 95827 Analysis Method EPA 5030/8015 Mod/8020 Reported Jun 28, 1999 <br /> Attention Rusty Benkosky First Sample # 906-0251 <br /> QC Batch Number SP060799 SP060799 SP060799 SP060799 SP060799 SP060799 <br /> 8020EXA 8020EXA 8020EXA 8020EXA 8020EXA 8020EXA <br /> TOTAL PURGEABLE PETROLEUM HYDROCARBONS with BTEX / MTBE <br /> Reporting Sample Sample Sample Sample Sample Sample <br /> Analyte Limit I D I D I D I D I D I D <br /> Mg/Kg 906-0251 906-0252 906-0253 906-0254 906-0255 906-0256 <br /> T1 N@15' T1 S@15' T2N915' T2S915' T3N@15' T3S@15' <br /> Purgeable - <br /> Hydrocarbons 10 1,600 N D 3,400 2,400 N D 59 <br /> Benzene 00050 N D N D N D N D N D N D <br /> Toluene 00050 61 N D 60 60 N D 0 051 <br /> Ethyl Benzene 00050 20 N D 51 62 N D 0 066 <br /> Total Xylenes 00050 180 N D 440 450 0 028 46 <br /> MTBE 0 050 N D N D 11 15 0 077 N D , <br /> Chromatogram Pattern Gasoline Gasoline Gasoline Gasoline <br /> Quality Control Data <br /> Report Limit Multiplication Factor 200 1 0 200 200 1 0 1 0 <br /> Date Analyzed 6/9/99 6/7/99 6/9/99 6/9/99 6/7/99 6/7/99 <br /> Instrument Identification HP-4 HP-4 HP-4 HP-4 HP-4 HP4 <br /> Surrogate Recovery, % 94 89 101 <br /> (QC Limits = 40-140%) <br /> Purgeable Hydrocarbons are quantitated against a fresh gasoline standard <br /> Analytes reported as N D were not detected above the stated reporting limit <br /> SEQUOIA ANALYTICAL, #1271 Please Note <br /> *Surrogate recovery below control limit due to dilution <br /> Dimpl&eS h allr m4 <br /> Project Manager <br /> 9060251 SSS <1 i <br />