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Sequoia <br />Analytical <br />819 Striker Avenue Suite 8 <br />Sacramento CA 95834 <br />(916) 921 9600 <br />FAX (916) 921-0100 <br />www sequoialabs corn <br />3ECOR International - Rancho Cordova <br />Project <br />Chevron 9-5775 <br />Sampled <br />6114/00 to 6/16/00 <br />1017 Kilgore Road, Suite I00 <br />Project Number <br />077 41991 043 <br />Received <br />6119100 <br />2ancho Cordova, CA 95670 <br />Project Manager <br />David Evans <br />Reported <br />6123, 27100 <br />Total Purgeable Hydrocarbons (C6-02), BTEX and MTBE by DHS LUFT <br />Sequoia Analytical - Sacramento <br />Batch Date Date Surrogate Reporting <br />Analyte Number Prepared Analyzed Limits Limit Result Units Notes* <br />MW -81W,551 <br />5006257-14 <br />Soil <br />Purgeable Hydrocarbons <br />0060206 <br />6/21/00 <br />6121/00 <br />100 <br />ND <br />mg/kg <br />Benzene <br />000500 <br />ND <br />" <br />Toluene <br />" <br />000500 <br />ND <br />" <br />Ethylbenzene <br />" <br />" <br />" <br />000500 <br />ND <br />It <br />Xylenes (total) <br />000500 <br />ND <br />" <br />Methyl tert-butyl ether <br />00500 <br />ND <br />_ <br />Surrogate a a a-Triuorotoluene <br />600-140 <br />945 <br />% <br />MW -813090' <br />5006257-25 <br />Soil <br />Purgeable Hydrocarbons <br />0060206 <br />6121100 <br />6/21100 <br />100 <br />ND <br />mg/kg <br />Benzene <br />11 <br />11 <br />000500 <br />ND <br />" <br />Toluene <br />It <br />11 <br />000500 <br />ND <br />" <br />Ethylbenzene <br />000500 <br />ND <br />" <br />Xylenes (total) <br />000500 <br />ND <br />" <br />Methyl tert-butyl ether <br />00500 <br />ND <br />Surrogate a a a-Trifluorotoluene <br />600-140 <br />935 <br />% <br />MW-1MR45' <br />5006257-41 <br />Soil <br />Purgeable Hydrocarbons <br />0060257 <br />6127/00 <br />6/27/00 <br />100 <br />ND <br />mg/kg <br />Benzene <br />000500 <br />ND <br />" <br />Toluene <br />000500 <br />ND <br />" <br />Ethylbenzene <br />000500 <br />ND <br />" <br />Xylenes (total) <br />000500 <br />ND <br />" <br />Methyl tert-butyl ether <br />" <br />00500 <br />ND <br />" <br />Surrogate a aa-Trifluorotoluene <br />600-140 <br />117 <br />% <br />MW-12AA55' <br />S006257-69 <br />Soil <br />Purgeable Hydrocarbons <br />0060206 <br />6/21/00 <br />6/21/00 <br />100 <br />ND <br />mg/kg <br />Benzene <br />000500 <br />ND <br />" <br />Toluene <br />000500 <br />ND <br />" <br />Ethylbenzene <br />000500 <br />ND <br />" <br />Xylenes (total) <br />" <br />000500 <br />ND <br />" <br />Methyl tert-butyl ether <br />" <br />00500 <br />ND <br />_ <br />Surrogate a,a a-Triuorotoluene <br />" <br />600-140 <br />950 <br />% <br />Sequoia Analytical - Sacramento *Refer to end of report for text of notes and definitions <br />Page 5 of 8 <br />