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Sequoia 680 Chesapeake Drive Redwood City,CA 94063 (650) 364 9600 FAX(650)364 9233 <br /> 404 N Wiget Lane Walnut Creek,CA 94598 (510) 988-9600 FAX(510)988 9673 <br /> Analytical 819 Stnker Avenue,Suite 8 Sacramento,CA 95834 (916) 921-9600 FAX(916)921 0100 <br /> Upgradient Environmental Consultants Protect Conrady Sampled 7/6/98 <br /> 336 Augusta Court Project Number N/A Received 717198 <br /> Valley Sp,CA 95252 Project Manager Vic Cherven Re rted 7123/98 <br /> Total Purgeable Hydrocarbons(C6-02)and BTEX by DHS LUFT/Quality Control <br /> Sequoia Analytical-Sacramento <br /> Date Spike Sample QC Reporting Limit Recov RPD RPD <br /> IAnalyte Analyzed Level Result Result Units Recov Limits % Limit % Notes* <br /> Batch, 8070191 Date Prepared,„7/15198 Extraction Method. EPA,SQ30H(PIT) <br /> Blank 8070191-BLKI <br /> Purgeable Hydrocarbons 7/15/98 ND ug/l 50 0 <br /> Benzene ND 0 500 <br /> Toluene ND 0 500 <br /> Ethylbenzene ND 0 500 <br /> Xylenes(total) ND 0 500 <br /> Surrogate a,a,a-Trifluorotoluene 100 101 600-140 101 <br /> LCS 8070191-BSI <br /> Benzene 7/15/98 100 103 ug/I 700-130 103 <br /> Toluene 100 970 700-130 970 <br /> Ethylbenzene 10 0 943 700-130 943 <br /> Xylenes(total) 300 283 700-130 943 <br /> 4C::' <br /> a-Trifluorotoluene ” 10 0 996 600-140 996 <br /> 8070191-MS1 S807051-01 <br /> Benzene 7/15198 100 ND 101 ug/1 600-140 101 <br /> Toluene 10 0 ND 951 600-140 951 <br /> Ethylbenzene 10 0 ND 929 600-140 929 <br /> Xylenes(total) 300 ND 279 600-140 93 0 <br /> Surrogate a,a a-Trifluorotoluene 100 996 600-140 996 <br /> Matrix Spike Dup 8070191-MSDI X01 <br /> Benzene 7/15/98 10 0 ND 104 ug/l 600-140 104 25 0 2 93 <br /> Toluene 10 0 ND 979 600-140 979 25 0 2 90 <br /> Ethylbenzene 10 0 ND 944 600-140 944 25 0 160 <br /> Xylenes(total) 300 ND 283 600-140 943 25 0 139 <br /> Surrogate a,a,a-Trifluorotoluene 100 951 600-140 951 <br /> Batch`8070209 Date PreRa,„r�i 7/15198 Extraction Method. EPA 5030B(P/T) <br /> Ellin k 8070209-BL K I <br /> Purgeable Hydrocarbons 7115198 ND ug/l 500 <br /> Benzene ND 0 500 <br /> Toluene ND 0 500 <br /> Ethylbenzene ND 0 500 <br /> Xylenes(total) " ND 0 500 <br /> Surrogate a,a,a-Trifluorotoluene 100 9 91 600-140 991 <br /> LCS 8070209-BSI <br /> Benzene 7/15198 10 0 104 ug/l 700-130 104 <br /> Toluene 100 967 700-130 967 <br /> Am <br /> nota nalytical-Sacramento *Refer to end of report for text of notes and definitions <br /> n a C Schneider,Laboratory Director Page 7 of I I <br /> 'fid' <br />