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Sequoia 1551 Industrial Road <br /> r. <br /> San Carlos CA 94070-4111 <br /> Analytical <br /> (650) 232-9600 <br /> Y JL FAX (650) 232-9612 <br /> Blaine Tech Services Project Chevron(3) Sampled 12/22/99 <br /> 1680 Rogers Avenue Project Number Chevron 9-4275/991222-G2 Received 12/23/99 <br /> San Jose, CA 95112 Project Manager Scott Boor RERorted 1/11/00 <br /> ' <br /> —'T -PiirgeableElydrocarl ons((C6-Cf2),BTEXrcend'MTBE by,,DHS,E FTIQu tywControl <br /> �N <br /> II41a All"dl t1C$l� <br /> 9 ri Y "SanCarlosF k 3 <br /> Date Spike Sample QC Reporting Limit Recov RPD RPD <br /> Analyte Analyzed Level Result Result Units Recov Limits % Limit % Notes* <br /> Batch 0010002 Date Prepared 1/3/00 Extraction Method EPA 5030B [P/Tl <br /> Blank 0010002-BLKI <br /> Purgeable Hydrocarbons as Gasoline 1/3/00 ND ugll 500 <br /> Benzene It <br /> ND 0 500 <br /> Toluene ND <br /> 0 500 <br /> Ethylbenzene ND 0 500 <br /> Xylenes(total) ND 0 500 <br /> Methyl tent-butyl ether ND 500 <br /> Surrogate a a a-Trtfluorotoluene —100 10 8 700-130 108 <br /> LCS 0010002-BSl <br /> Benzene 113100 10 0 805 ug/l 700-130 805 <br /> Toluene 100 783 700-130 78 3 <br /> Ethylbenzene 100 800 700-130 800 <br /> Xylenes(total) 300 240 it 700-130 800 <br /> w <br /> te a a,a-Trif]uorotoluene " 10 0 10 0 700-130 100 <br /> LCS 0010002-BS2 <br /> Purgeable Hydrocarbons as Gasoline 1/3/00 250 262 ug/1 700-130 105 <br /> Surrogate a a a-Trifluorotoluene 11 100 101 700-130 101 <br /> Matrix Spike 0010002-MSI L912212-01 <br /> Benzene 1/3100 100 ND 863 ug/l 600-140 863 <br /> Toluene 100 ND 832 600-140 83 2 <br /> Ethylbenzene 100 ND 859 600-140 85 9 <br /> Xylenes(total) 300 ND 25 6 600-140 853 <br /> Surrogate a,a,a-Trrfluorotoluene 100 926 700-130 926 <br /> Matrix Spike Du p 0010002-MSD1 L912212-01 <br /> Benzene 1/3/00 100 ND 719 ug/1 600-140 719 250 18 2 <br /> Toluene 100 ND 697 60 0-140 69 7 2S 0 17 7 <br /> Ethylbenzene 100 ND 7 15 600-140 715 250 183 <br /> Xylenes(total) 300 ND 21 3 60 0-140 710 25 0 183 <br /> Surrogate a a a-Trifluorotomene 100 811 700-130 81 1 <br /> Batch 9120152 Date Prepared 12/31/99 Extraction Method EPA 5030B PIT <br /> Blank 9120152-BLKI <br /> Purgeable Hydrocarbons as Gasoline 12/31/99 ND ug/1 500 <br /> Benzene " ND 0 500 <br /> Toluene „ <br /> ND 0 500 <br /> Ethylbenzene ND 0 500 <br /> Xylenes(total) ND 0 500 <br /> is Analytical- San Carlos *Refer to end of report for text of notes and definitions <br /> Page 3 of 5 <br />