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, <br /> 819 Sinker Avenue,Suite 8 <br /> Sacramento,CA 95834 <br /> Sequoia (916)921`9600 <br /> FAX(916)921-0100 <br /> Analytical www sequntalabs corn <br /> SECOR International-Rancho Cordova Project ARCO 595,Stockton,CA <br /> Project Number 077 43130 050 Reported <br /> 3017 Kilgore Road,Suite 100 11/07/Ol 16 47 <br /> Rancho Cordova CA,95670 Project Manager Rusty Benkosky <br /> - <br /> Total Purgeable-Hydroc argon,BTEEX and M'I'CE by DHS LUFT-Quality Control <br /> Sequoia'Analytical,-,Sacramento.. <br /> Reporting Spike I Source - %REC, _ RPD <br /> y� Result Limit Units Level Result %REC Luntts RPD Limit Notes <br /> Batch 1100326=EPA 5030E(P!D <br /> Blank 1100326-BLKl Pre aced&Anal d 10/26/01 <br /> Purgeable Hydrocarbons ND 50 UFA <br /> ND 0 50 " <br /> Benzene <br /> Toluene <br /> ND 0 50 <br /> " <br /> Ethylbeiizene <br /> ND 050 " <br /> Xylenes(total) <br /> ND 0 50 " <br /> Methyl tert-butyl ether ND 2 5 " <br /> Surrogate a a a-Triuorotoluene <br /> 101 IO 0 101 6d-140 <br /> LCS 1100326-BS1 Preva—'&Anal d 10/26/01 <br /> Benzene 9 80 0 50 ugfl 100 98 0 70-130 <br /> Toluene 9 45 050 10 0 945 70-130 <br /> Ethylbenzene 948 0 50n 100 948 70-130 <br /> Xylenes(total) 286 0 50 " 300 95 3 70-130 . <br /> Methyl tert-butyl ether ti 0 2 5 100 110 70-130 <br /> Surrogate a a a-Trifluorotoluene <br /> 104 100 104 60-140 <br /> Matrix Spike 1100326-MS1 Source 5110332-04 P aced&Anal d 10/26/fl1 <br /> Benzene9 88 050 119/1 10 0 ND 98 8 60440 <br /> Toluene _ 9 55 0 50- -� 10 0= ND--=95 5=-60-140- - <br /> Ethylbenzene 9 58 050 H too ND 95 8 60-140 <br /> Xylenes(total) 29 1 0 50 " 300 ND 97 0 60-140 <br /> Methyl tert-butyl ether 11 0 2 5 10 0 ND 110 60-140 <br /> Surrogate a,a a-Trifluorotoluene 100 100 100 60-140 <br /> Matrix Spike Du 1100326-MSD1 Source.S110332-04 Pre Oared&Analyzed iia 6101 <br /> Benzene 60-140 5 13 25 <br /> t 0 4 050 URA <br /> Toluene <br /> 102 050 100 ND 102 60-140 658 25 <br /> Ethylbenzene <br /> 103 050 100 ND 103 60-140 724 25 <br /> Xylenes(total) <br /> 30 8 050 300 ND 103 60-140 568 25 <br /> - - - -- - <br /> Methyl tert-butyl ether <br /> 11 5 2 5 too ND 115 60-140 444 25 <br /> Surrogate a,a a-Trifluorotoluene 107 - - - 100 +- - 107— 60-140---- - - _ _- - --- <br /> The results in this report apply to the samples analyzed in accordance with the chat <br /> Sequoia AtlalyhCal-Sacramento >� <br /> ojcustody document This analytical report must be reproduced in its entirety <br /> Page Page 11 of 12 <br />