ARCHIVED REPORTS_XR0008271 CASE 1

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(INSequoia � 1551 d�7�I�d Analytical FAX(650) 232-9600 (650) 232-9612— - North Creek Analytical-Bothell Project - Sampled 3/23/00 18939 120th Ave NE,Suite 101 Project Number B000535 Received 3/28/00 Bothell,WA 98011 Pro ect Mana er Dirk Gendron Reported 4/4/00 Volatile Orgame Oxygenated Compounds by EPA Method 8260A Sequoia Analytical-San Carlos Batch Date Date Surrogate Reporting lAnalyte Number Prepared Anal Limits Limit Result Units Notes* B000535-02 L003243-01 Water Ethanol 0030157 3/30100 3/30/00 1000 ND ug/l Text-butyl alcohol It it 100 ND " Methyl tert-butyl ether If " " 200 ND If Di-isopropyl ether it It 200 ND It Ethyl tert-butyl ether " " " 200 ND It Tert-amyl.methyl ether " 200 ND It Surrogate 1,2-Dichloroethane-d4 " 760-114 103 % B000535-03 L003243-02 Water Ethanol 0030157 3130/00 3/30/00 1000 ND u9/1 Tert-butyl alcohol " 100 ND " Methyl tert-butyl etiier 200 ND " Dt-isopropyl ether " " 200 ND " tert-butyl ether " " 200 ND " Mirmyl methyl ether " " " 200 ND " Surrogate 1,2-Dichloroethane-d4 " 760-114 102 % B000535-04 L003243-03 Water Ethanol 0030157 3/30/00 3/30/00 1000 ND ug/1 Tert-butyl alcohol It of 100 ND " Methyl tert-butyl ether " " 200 ND " Di-isopropyl ether if it " 200 ND " Ethyl tert-butyl ether 1. 200 ND " Tent-amyl methyl ether 200 ND Surrogate 1,2-Dichloroethane-d4 " 760-114 107 B000535-05 L003243-04 Water Ethanol 0030157 3/30/00 3/30/00 1000 ND ug/1 Tert-butyl alcohol If It 100 ND " Methyl tert-butyl ether It 200 ND " Di-isopropyl ether it 200 ND " Ethyl tett butyl ether n it n 200 ND Tert-amyl methyl ether " " 200 ND " Surrogate 1,2-1)ichloroethane-d4 " 760-114 102 % Sequoia Analytical-San Carlos *Refer to end of reportfor test of notes and definitions Page 2 of 4