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Sequoia 680 Chesapeake Dnve Redwood City CA 94063 (650) 364 9600 FAX(650)364 9233 <br /> 404iv Wiget [_ane Walnut Creek CA 94598 (510) 988 9600 FAX(510) 988 9673 <br /> Analytical 819 Striker Avenue Suite 8 Sacramento CA 95834 (916) 921 9600 FAX(916) 921 0100 <br /> Pacific Environmental Group-Sac Project Chevron 100 162 1,Banta,CA Sampled 5126198 <br /> 11315 Sunrise Gold Circle St M Project Number 920 002 2D Received 5/26/98 <br /> ' Rancho Cordova,CA 95742 Project Manager Chris Brown Reported 6/22/98 <br /> Total Purgeable Hydrocarbons (C6-C12)and BTEX by DHS LUFT/Quality Control <br /> Sequoia Analytical-Sacramento <br /> Date Spike Sample QC Reporting Limit Recov RPD RPD <br /> Analyte Analyzed Level Result Result Units Recov Limits % Limit % Notes* <br /> ' Batch. 8060043 Date Prepared, 612198 Fxtraction Method. EPA 5030B(1!1T) <br /> $jag 8060043-BLK1 <br /> Purgeable Hydrocarbons 6/2/98 ND ug/l Soo <br /> Benzene ND 0 500 <br /> Toluene ND 0 500 <br /> Ethylben7enc ND 0 500 <br /> ' Xylenes(total) ND 0 500 <br /> Surrogate a,a,a-Trtfluorotoluene 100 986 600-140 986 <br /> Us 8060043-BS 1 <br /> Benzene 612198 100 108 ug/I 700-130 I08 <br /> Toluene 100 100 700-130 100 <br /> Ethylbenzene 100 9 86 700-130 986 <br /> W"lene's,(.total) 300 28 9 700-130 963 <br /> ga,a a-Trifluorotoluene 100 925 600-140 925 <br /> Matrix Spike 8060043-MSI 5805302-04 <br /> ' Benzene 6/2/98 100 ND 101 ug/l 600-140 101 <br /> Toluene 100 ND 9 61 600-140 961 <br /> Ethylbenzene 100 ND 942 600-140 942 <br /> Xylenes(total) 300 ND 279 600-140 930 <br /> ' Surrogate a,a a-Trifluorotoluene 100 9 80 600-140 980 <br /> Matrix SpjktDiLp 8060043-MSD/ 5805302-04 <br /> Benzene 612198 100 ND 107 ug/l 600-140 107 25 0 577 <br /> Toluene 100 ND 993 600-140 993 25 0 3 28 <br /> Ethylbenzene 100 ND 9 77 600-140 977 25 0 3 65 <br /> Xylenes(total) 300 ND 28 8 600-140 960 25 0 3 17 <br /> Surrogate aaa-Trifluototoluetre 100 938 600-140 938 <br /> Batch, 80fi0044 Date Prepared, 6/2/98 Extraction Method, EPA 5030B(P/) <br /> ' Blank 8060044-BLKI <br /> Purgeable Hydrocarbons 6/2/98 ND ug/I 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-TrVluorotoluene 100 9 54 600-140 954 <br /> ' LCS 8060044-BSI <br /> nzene 612/98 100 992 ug/l 700-130 992 <br /> uene 100 926 700-130 926 <br /> Sequoia Analytical-Sacramento 'Refer to end of report for text of notes and definitions <br /> l <br /> nda C Schneldef Laboratory Director Page 7 of 10 <br />