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' 680 Chesapeake Dnve Redwood City CA 94063 (650) 364 9600 FAX(650)364 9233 <br /> Sequoia680 <br /> N W,get Lane Walnut Creek CA 94598 (Si0) 988 9600 FAX(510) 988 9673 <br /> Analytical 819 Straker Avenue Suite % Sacramento CA 95834 N16) 921 9600 FAX(916) 921 0100 <br /> ' Pacific Environmental Group-Sac Project Chevron 1001621,Banta,CA Sampled 5/27198 <br /> 11315 Sunrise Gold Circle St M Project Number 920 002 2D Received 5/27/98 <br /> Rancho Cordova,CA 95742 Project Manager Chris Brown Reported 6/22198 <br /> Total Purgeable Hydrocarbons (C6-C12) and BTEX by DHS LUFTIQuality 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. 8060045 Date Prepared, 613198 Extraction Method, EPA 5030B(PCC) <br /> Blanl. 8060045-BLKl <br /> Purgeable Hydrocarbons 6/3198 ND ug/l Soo <br /> Benzene ND " 0 500 <br /> Toluene ND 0 500 <br /> Eth�lbcnzene ND 0 500 <br /> Xylenes(total) ND 0 500 <br /> Surrogate a,a,a-Tnfluorotoluene 100 101 600-140 101 <br /> 8060045-BSI <br /> ' Benzene 613/98 100 107 ugll 700-130 107 <br /> Toluene 100 101 700-130 101 <br /> Ethylbenzene 100 100 700-130 100 <br /> gligiWlenes(total) 300 298 700-130 99 3 <br /> rogate a a a-Trtfluorotoluene 100 105 600-140 105 <br /> Matrix S ft 8060045-MSI 5805321-06 <br /> ' Benzene 613198 too ND 110 ug/l 600-140 110 <br /> Toluene 100 ND 104 600-140 104 <br /> Ethylbenzene 10 0 ND 10 1 600-140 101 <br /> Xyienes(total) 300 ND 303 600-140 101 <br /> ' Surrogate a a,a-Trifluorotoluene 100 101 600-140 101 <br /> Matrix Spike Dun 8060045-MSDI S805321-06 <br /> Benzene 613198 10 0 ND 108 ug/l 600-140 108 250 183 <br /> Toluene 100 ND 100 " 600-140 100 25 0 3 92 <br /> Ethylbenzene 100 ND 9 83 600-140 98 3 25 0 2 71 <br /> Xylenes(total) 300 ND 293 600-140 977 25 0 3 32 <br /> ' Suieogaie aaa-Tr tfluorotohiene 100 941 600-140 941 <br /> Batch. 806OQ60 Extraction Method. EPA 5030B(M) <br /> Blank 806006Q-BLK1 <br /> Purgeable Hydrocarbons 613198 ND ugll 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-Trtfluorotolitene 100 9 79 600-140 979 <br /> LC5 8060060-BSI <br /> enzene 613/98 100 106 u811 700-130 106 <br /> luene too 104 700-130 104 <br /> Sequoia Analytical-Sacramento *Refer to end of report for text of notes and definitions <br /> oda C Schnei r Laboratory Director Page 6 of 10 <br /> r <br />