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Sequoia 885 Jarvis Drive <br /> Morgan Hill CA 95037 <br /> (408) 776-9600 <br /> Analytical FAX(408) 782-6308 <br /> • <br /> Blaine Tech Services(Chev) Project Chevron 9-6258(2409 E Main, Stockton) Sampled 8/30/99 <br /> 1680 Rogers Avenue Project Number 990830-N2 Received 8/31199 <br /> San Jose CA 95112 Project Manager Christine Lillie Reported 9/16/99 <br /> --�..Y„.�..__,�.=Total,Pargeable�HydcocaYlaans[C6�C12),B'TE7� na d NL'�'BE.byDHS LUF�'IQuality�Co�trol'x',�"`'��`--��'W� <br /> SequoiaARalytrca_a jMorgan,Hdl k . - -_ -- — —...,__tt <br /> Date Spike Sample QC Reporting Lima Recov RPD RPD <br /> Analyte Analyzed Level Result Result Units Recov Limits % Limit % Nates* <br /> Batch 9090261 Date Pretwed 9110199 Extraction Method RPA 5030E [P/Tl <br /> Blank 9090261-BLKI <br /> Purgeable Hydrocarbons 9/10/99 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 /> Methyl tert-butyl ether_ ND _ 250 _ <br /> Surrogate a,a,a-Tg8uorotoluene 100 960 700-130 960 <br /> LCS 9090261-BSI <br /> Purgeable Hydrocarbons 9110199 _250 242 ug/l 700-130 968 _ <br /> Surrogate a aa-Trifluorotoluene A 100 116 700-130 -116 <br /> Matrix,Spike 9090261-MS1 9090041-05 <br /> �geable Hydrocarbons _ 9110/99 250 ND 236 ug/l 600-140 944 <br /> arrogate a,a,a-Trzfluorotoluene 100 110 700-130 110 <br /> Matrix Spike Dun 9090261-MSD/ 9090041-05 <br /> Purgeable Hydrocarbons _ 9/101`99 250 _ ND 226 ug/l _600-140 904 25 0 _ 433 <br /> Surrogate a,a,a-Trifluorotoluene 100 115 700-130 115 <br /> Iuoia Analytical-Morgan Hill *Refer-to end of report for text of notes and definitions <br /> Page 4 of 6 <br /> i <br />