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4 <br />�Iwo <br />�t <br />4 <br />Sequoia <br />Analytical <br />819 Strtker Avenue Suite 8 <br />Sacramento CA 95834 <br />(916) 921-9600 <br />FAX (916) 92 1 -0100 <br />www sequoialabs com <br />settler -Ryan - Rancho Cordova <br />Project <br />Chevron 9-5775, Lodi, CA <br />Sampled <br />4112100 <br />164 Gold Camp Dr , Ste 240 <br />Project Number <br />346408 10 <br />Received <br />4113100 <br />tancho Cordova, CA 95670 <br />Project Manager <br />David Herzog <br />Reported <br />4114/04 <br />Total Purgeable Hydrocarbons (C6 -C12), BTEX and MTBE by DHS LUFT/Quality Control <br />Sequoia Analytical - Sacramento <br />Date Spike Sample QC Reporting Limit Recov RPD RPD <br />Analvte Analyzed Level Result Result Units Recov Limits % Limit % Notes* <br />Batch 0040126 <br />Blank <br />Purgeable Hydrocarbons <br />Benzene <br />Toluene <br />Ethylbenzene <br />Xylenes (total) <br />Methyl tert-butyl ether <br />Surrogate a a a-Trrfluorotoluene <br />LCS <br />Benzene <br />Toluene <br />Ethylbenzene <br />X lenes (total) <br />yl tent -butyl ether <br />ogale a,a a-Trfluorotoluene <br />Date Prepared 4113/00 Extraction Method EPA 50308 McOH <br />0040126-BLK1 <br />4113/00 ND mg/kg 100 <br />ND 000500 <br />ND 000500 <br />ND 000500 <br />ND 000500 <br />" ND 00500 <br />0 200 0 231 60 0-140 116 <br />0040126-BSl <br />0040126 -NISI <br />5004066-01 <br />4113100 0200 <br />0 223 mg/kg <br />700-130 <br />112 <br />0200 <br />0 223 <br />700-130 <br />112 <br />" 0200 <br />0 234 <br />700-130 <br />117 <br />" 0 600 <br />0 687 <br />700-130 <br />114 <br />" 0200 <br />0 194 <br />700-130 <br />970 <br />0200 <br />0 23711 bU U -14U 116 <br />Matrix Spike <br />0040126 -NISI <br />5004066-01 <br />Benzene <br />4113/00 0200 <br />ND <br />0 184 mg/kg <br />600-140 <br />92 0 <br />Toluene <br />0200 <br />ND <br />0 190 <br />600-140 <br />95 0 <br />Ethylbenzene <br />0200 <br />ND <br />0202 <br />600-140 <br />101 <br />Xylenes (total) <br />0 600 <br />00136 <br />0 601 <br />600-140 <br />979 <br />Methyl tert-butyl ether_ <br />0200 <br />ND <br />0 175 <br />600-140 <br />87 5 <br />_ <br />Surrogate a a a-Trifluorotoluene <br />0200 <br />0 228 <br />600-140 <br />114 <br />Matrix Spike Dup <br />0040126-1%1SD1 <br />5004066-01 <br />Benzene <br />4113/00 0200 <br />ND <br />0 184 mg/kg <br />600-140 <br />920 <br />250 <br />0 <br />Toluene <br />0200 <br />ND <br />0 190 <br />600-140 <br />95 0 <br />25 0 <br />0 <br />Ethylbenzene <br />0200 <br />ND <br />0 198 <br />600-140 <br />990 <br />25 0 <br />200 <br />Xylenes (total) <br />0 600 <br />00136 <br />0 594 <br />600-140 <br />967 <br />25 0 <br />1 23 <br />Methyl tert-butyl ether <br />_" 0200 <br />ND <br />0 176 <br />600-140 <br />88 0 <br />250 <br />0 570 <br />Surrogate a a a-Trifluorotoluene <br />0200 <br />0 225 <br />600-140 <br />112 <br />to Analvtical - Sacramento <br />*Refer to end of report for text of notes and dejlnruons <br />Page 6 of 8 <br />