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885 lams Drive <br /> Sequoia Morgan Hit[ CA 95037 <br /> (408) 772-9600 <br /> Analytical <br /> FAX(40$) 782-630$ <br /> Blaine Tech Services(Shell) Project Equiva Sampled 8/27/99 <br /> 1680 Rogers Avenue Project Number 7910 Lower Sacramento Received 8/30/99 <br /> San Jose,CA 95112 Project Manager Ann Peinber Reported 9114/99 <br /> - - _ TotaE Purgeable Hydrocarbons(C6-C12),BTEX and MTBE by DHS LUFT/Quality Control <br /> Sequoia Analytical-Morgan Hill _ <br /> Date Spike Sample QC Reporting Limit Recov RPD RPD <br /> Analyte Analyzed Level Result Result Units Recov Limits % Limit % Notes* <br /> Batch 9090214 Date Prepared 919199 Extraction Method EPA 5030E JP/TI <br /> Blank 9090214-BLK1 <br /> PLrgeable Hydrocarbons 9/9/99 ND ug/1 500 <br /> Benzene ND 0 500 <br /> Toluene ND 0 500 <br /> Ethylbenzene ND 0 500 <br /> Xylenes(total) ND 0 500 <br /> Methyl tert-butyl ether _ _ _ — ND —_ 250 _— <br /> Surrogate -a,a a-Trifluorotoluene 100 110 700-130 110 <br /> LCS 9090214-BS] <br /> Benzene 9/9199 too 10 8 ug/l 700-130 108 <br /> Toluene 100 10 9 700-130 109 <br /> Eth /benzene too 11 3 700-130 113 <br /> s(total) _ 300 34 1_ 700-130 114 - — - <br /> gate a a,a-1'rilluorotoluene -----10 0�- - -- - 104 - - -- - 700-130 104 <br /> Matrix Spike 9090214-MSI 9090010-01 <br /> Benzene 919/99 100 ND 106 ug/l 600-140 106 <br /> Toluene 100 ND 107 600-140 107 <br /> Ethylbenzene too ND 11 1 600-140 111 <br /> Xylenes(total) _— 300 _ ND _ _ _33 3 _-_ - 600-140 111T- <br /> Surrogate a s a-Trifluorotoluene 100 106 700-130 106 <br /> Matrix Spike Dup 9090214-MSD1 9090010-01 <br /> Benzene 919/99 too ND 101 ug/l 600-140 101 250 483 <br /> Toluene 100 ND 10 2 600-140 102 250 4 78 <br /> Ethylbenzene 100 ND 105 600-140 105 25 0 556 <br /> Xvlenes(total_)_ _ _" 300 ND 31 8 600-140 Y 106 250--- 461 --- <br /> Surrogate <br /> 61 -- <br /> Surrogate a,a a-Trifluorotoluene " - 100 102 700-130 10.2 <br /> Batch 9090215 Date Prepared 919199 Extraction Method EPA 5030B [PIT] <br /> Blank 9090215-B LK 1 <br /> Purgeable Hydrocarbons 9/9/99 ND ugJl 500 <br /> Benzene ND 0 500 <br /> Toluene ND 0 500 <br /> Ethylbenzene ND 0 500 <br /> Xylenes(total) ND 0 500 <br /> Methyl tert-butyl ether ND "_ 250 -��— <br /> Surrogate a a,a-Trifluorotoluene 100 105 700-130 105 <br /> Sequoia Analytical-Morgan Hill *Refer to end ofreport for text of notes and definitions <br /> Page 3 of 5 <br />