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f <br /> Sequoia U 885 Jarvis Drive <br /> J Morgan Hill,CA 95037 <br /> (408) 776-9604 <br /> Analytical <br /> FAX(408) 782-6308 <br /> I - <br /> i <br /> i <br /> ATC Associates,Inc. Project: SUSD/Corporation Yard Sampled: 2/23/99 to 2/24/99 <br /> 1117 Lone Palm Ave.,Suite B Project Number: na Received: 311199 <br />' Modesto,CA 95351 Project Manager: Tom Lutterman Reported: 9/3/99 <br /> � �"`�� -� �" �**�Volatile Organ><c CQmpounds by EPA�Metliod 82t;OB/Quality Control� ' <br /> - -� . ��- �•-, .:;_Sequowa:Anatytica€ Petalurma � � r <br /> Date Spike Sample QC Reporting Limit Recov. RPD RPD <br /> Analyte Analyzed Level Result Result Units Recov.Limits % Limit % Notes* <br /> Matrix Spike 9030118-MS1 P902601-40 <br /> Methyl tert-butyl ether 3/4/99 50.0 ND __ 48.9 ug/kg_ 70.0-130 97.8 <br /> Surrogate: Dibromofluoromethane 50.0 48.9 _ 80.0-120 97.8 - �- <br /> Surrogate: 1,2-Dichloroethane-d4 50.0 42.1 80.0-120 84.2 <br /> Surrogate: Toluene-d8 50.0 46.7 81.0-117 93.4 <br /> Surrogate: 4-Bromoflucrobenzene 50.0 553 74.0-121 111 <br /> Matrix Spike Dup 9030118-MSD1 P902601-40 <br /> Methyl tert-butyl ether. _ - 3!4/99-� 50.0 ND 59.0 ug/kg 70.0-130 118 20.0 18.7 <br /> Surrogate: Dibromoflunromeihane. 50.0 59.3 80.0-120 119 <br /> Surrogate: 1,2-Dichloroethane-d4 50.0 66.6 80.0-120 133 <br /> Surrogate: Toluene-d8 50.0 51.1 81.0-117 102 <br /> Surrogate: 4-Bromofluorobenzene 50.0 60.5 74.0-121 121 6 <br /> -1 h: 9030221 Date Prepared: 319199 Extraction Method: EPA 5035 <br /> k 9030221-BLKI <br /> Tert-amyl methyl ether 3/9/99 ND ug/kg 5.00 <br /> Tert-butyl alcohol ND 100 <br /> Di-isopropyl ether ND 5.00 <br /> 1,2-Dibromoethane(EDB) ND 5.00 <br /> 1,2-Dichloroethane ND 5.00 <br /> Ethanol ND 200 <br /> Ethyl tent-butyl ether ND 5.00 <br /> Methyl tert-butyl ether _ ND _ 5.00 <br /> Surrogate: Dibromofluoromethane 50.0 47.7 80.0-120 95.4 <br /> Surrogate: 1,2-Dichloroethane-d4 50.0 44.6 80.0-120 89.2 <br /> Surrogate: Toluene-d8 50,0 50.0 81.0-117 100 <br /> .Surrogate: 4-Bromofluorobenzene 50.0 50.2 74.0-121 100 <br /> Blank 9030221-BLK2 <br /> Tert-amyl methyl ether 3110199 ND ug/kg 5.00 <br /> Tert-butyl alcohol ND 100 <br /> Di-isopropyl ether ND 5.00 <br /> 1,2-Dibromoethane(EDB) ND 5.00 <br /> 1,2-Dichloroethane ND 5.00 <br /> Ethanol ND 200 <br /> Ethyl tert-butyl ether ND 5.00 <br /> Methyl tert-butyl ether __ ND 5.00 <br /> Surrogate: Dibromofluoromethane 50.0 48.3 80.0-120 96.6 <br /> Surrogate: 1,2-Dichloroethane-d4 50.0 44.4 80.0-120 88.8 <br /> Surrogate: Toluene-d8 50.0 52.0 81.0-117 104 <br /> 0go te, 4-Bromofluorobenzene 50.0 52.0 74.0-121 104 <br /> 1 <br /> Sequoia Analytical-Petaluma *Refer to end of report for text of notes and definitions. ; <br /> Page 25 of 28 <br />