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� SEQUOIA ANALYTICAL <br /> 1900 Bates Avenue - Suite LM - Concord,California 94520 <br /> (510) 686-9600 • FAX (510) 686-9689 RECEIVED SEP 2 2 1993 <br /> ff`^�"''rt'�r: <br /> t!X Associates w < �„x�.,,.v mcg,,,r F W CNrwr♦fY'4.H Rn. <br /> x�lienfprojectD Arco X2130=i�3=1, Stockton Sampled Sep 15, 199r? <br /> 1855 Gateway Blvd , Ste 770 Sample Matrix Soil Received Sep 16, 1993 , <br /> Concord,CA 94520 Analysis Method EPA 5030/8015/8020 Reported Sep 20, 1993',1 <br /> Attention Paul Supple First Sample# 309-0632 <br /> y^.rrrxx vvxv+ 4 xv4.~Ir Ve't xh s vv c ,, x r v. r , vmr . {..wrtr r\MrL. r <br /> TOTAL PURGEABLE PETROLEUM HYDROCARBONS with BTEX DISTINCTION <br /> Reporting Sample Sample <br /> Analyte Limit I.D. I D. <br /> mg/kg 309-0632 309-0633 <br /> CA1 (A-D) CA2 (A-D) <br /> Purgeable <br />' Hydrocarbons 10 15 N D <br /> Benzene 0 005 00051 N D <br /> Toluene 0 005 00054 N D <br />' Ethyl Benzene 0 005 N D N D <br /> PTotal Xytenes 0 005 00084 N D <br />'Chromatogram Pattern Non Gasoline <br /> (>C10) <br /> Quality Control Data <br /> Report Limit Multiplication Factor 10 10 <br /> Date Analyzed 9/16/93 9/16/93 <br /> Instrument Identification HP-5 HP-5 <br /> Surrogate Recovery, % 104 106 <br /> (OC Limits = 70-130%) <br /> Purgeable Hydrocarbons are quantitated against a fresh gasoline standard <br /> Analytes reported as N D were not detected above the stated reporting limit <br /> EQUOIA ICAL <br /> Kenneth K F Lee <br /> Laboratory Director <br />' 3090632 ROU <1> <br />