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885 Jarvis Drive <br /> ' Sequoia Morgan Hill,CA 95037 <br /> (408)776-9600 <br /> Analytical FAX(408) 782-6308 <br /> i <br /> Blame Tech Services(Shell) Project Equiva Sampled 1/28/00 <br /> I680 Rogers Avenue Project Number 2575 Country Club,Stockton Received 1/31/00 <br /> San lose,CA 95112 Project Manager Nick Sudano Reported 2/14/00 16 23 <br /> _!Font _ � <br /> ..� & mo-�- a k <br /> Date Spike Sample QC Reporting Limit Recov RPD RPD <br /> IAnalyte Analyzed Level Result Result Units Recov Limits % Limit % Notes* <br /> Blank(continued) __ OB09003-BLK1 <br /> Surrogate a a a-TrAtIorotoluene 2/9/00 10 0 8 79 ug/1 70-130 879 <br /> LCS OB09003-BSI <br /> Benzene 2/9/00 100 848 ug/l 70-130 848 <br /> Toluene 1. 100 788 70-130 788 <br /> Ethylbenzene to100 823 70-130 823 <br /> Xylenes(total) 300 23 9_ 70-130 797 _ <br /> Surrogate a a a-Trifluorotoluene 100 887 70-130 887 <br /> Matrix Spike OB09003-MSI MJA0234-12 <br /> Benzene 2/9/00 100 ND 823 ug/I 60-140 823 <br /> Toluene 100 ND 7 52 60-140 75 2 <br /> Ethylbenzene 100 ND 7 61 60-140 761 <br /> � <br /> ylenes(total) 300 ND 228 _ 60-140 760 _ <br /> arrogate aaa-_Trtfluorotoluene " 100 -911 �70-130 811 <br /> Matrix Spike Dup OB09003-MSD1 MJA0234-12 <br /> Benzene 2/9/00 100 ND 726 ug/l 60-140 726 25 125 <br /> Toluene 100 ND 679 to60-140 679 25 10 2 <br /> Ethylbenzene 100 ND 7 17 to60-140 717 25 595 <br /> Xylenes(total) 300 ND 208 to60-140_ 693 25 9 17 <br /> Surrogate a,a,a-Trifluorotoluene 100 789 70-130 78 9 <br /> Batch OB09004 Date Prepared 2/9/00 Extraction Method EPA 5030B 1P/T1 <br /> Blank OB09004-BLK1 <br /> Purgeable Hydrocarbons 2/9/00 ND ug/l Soo <br /> Benzene ND 0 500 <br /> Toluene ND 0 500 <br /> Ethylbenzene ND ot0 500 <br /> Xylenes(total) ND 0 500 <br /> Methyl tent-butyl ether ND 2 50 <br /> Surrogate a a a-Trtfluorotoluene 100 919 70-130 919 <br /> LCS OB09004-BSI <br /> Benzene 2/9/00 100 9 10 ug/l 70-130 91 0 <br /> Toluene 11100 851 70-130 85 1 <br /> Ethylbenzene 100 822 70-130 822 <br /> Xylenes(total) 30 0 249 70-130 830 <br /> Sequoia Analytical-Morgan Hill *Refer to end ofreport for text of notes and definitions <br /> • <br /> Page 15 of 20 <br />