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D680(+���yO�� Chesapeake Drive Redwood City CA 94063 (650)364-9600 FAX(650)364-9233 <br /> J rva 404 N Wiget Lane Walnut Creek.CA 94598 (925)988-9600 FAX(925)988-9673 <br /> ical 819 5trlker Avenue Suite 8 Sacramento CA 95834 (9t6)921-9600 FAX(9t6)921-0100 <br /> � r Analyt <br /> 1455 McDowell Blvd North Ste D Petaluma CA 94954 (707)792-1865 FAX(707)792-0342 <br /> Environmental Consultants Project fPjgr�—ad—.,.tConrad Property J Y Sampled 1217198 <br /> 336 Augusta Court Project Number NIA Received 12/8198 <br /> Valley 5 ,CA 95252 Pro ect Manager Vic Cherven Reported 12/30/98 <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 /> LCS(continued) 8120214-US1 <br /> Ethylbenzene 12/15/98 100 994 ug/1 700-130 99 4 <br /> Xylenes(total) 300 298 „ 700-130 99 3 <br /> Surrogate a,a,a-Tr(fluorotoluene 10 0 101 01600-140 101 <br /> h!aldx SPike 8120214-MS1 5812176-01 <br /> Benzene 12/15/98 t0 0 ND 109 ug/l 600-140 109 <br /> Toluene 1. 100 ND 10 1 600-140 101 <br /> Ethylbenzene 100 ND 998 600-140 99 8 <br /> Xylenes(total) 300 ND 299 600-140 997 <br /> Surrogate a a,a-Trtfluorotoluene too 972 600-140 972 <br /> Matrix Spike Dun 8120214-MSD1 5812176-01 <br /> Benzene 12/15198 too ND 107 ug/l 600-140 107 250 185 <br /> Toluene 100 ND 996 11600-140 99 6 25 0 140 <br /> Ethylbenzene too ND 986 P. 600-140 98 6 250 121 <br /> Aftlenes(total) 300 ND 295 600-140 98 3 250 1.41 <br /> rrogate a,a,a-Tr fluoratoluene too 95-3 600-140 953 <br /> Batch. 8120235 Date Prepared. 12/15/98 Extraction Method. EPA 50301,.,.(M <br /> DIU& 8120235-BLK1 <br /> Purgeable Hydrocarbons 12/15/98 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-Trtfluorotoluene 100 995 600-140 99 5 <br /> US 8120235-BS1 <br /> Benzene 12/15/98 100 10 8 ug/1 700-130 108 <br /> Toluene 100 101 700-130 101 <br /> Ethylbenzene 10 0 987 700-130 98 7 <br /> Xylenes(total) 300 29 7 700-130 99 0 <br /> Surrogate a,a,a-Tr fluoratoluene loo 979 600-140 979 <br /> eke 8120235-M51 5812111-06 <br /> Benzene 12/15/98 100 ND 109 ug/l 600-140 109 <br /> Toluene too ND 996 600-140 99 6 <br /> Ethylbenzene too ND 982 600-140 98 2 <br /> Xylenes(total) 300 ND 29 6 600-140 987 <br /> Surrogate a,a a-Trtfluorotoluene !0 0 <br /> 950 600-140 950 <br /> uoia Analytical -Sacramento *Refer to end of report for text of notes and definitions <br /> Linda C Schneider, Laboratory Director �60 Page 8 of 12 <br />