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819 Striker Avenue Suite 8 <br /> Sequoia Sacramento CA 95834 <br /> 4IN <br /> (916)921-9600 <br /> Analytical FAX(916) c m <br /> FAX <br /> sequoialabs alabs om <br /> SECOR International-Rancho Cordova Project Arco 6020, Manteca,CA <br /> 3017 Kilgore Road,Suite 100 Project Number N/A Reported <br /> Rancho Cordova CA,95670 Project Manager Rusty Benkosky 03/02/01 17 11 <br /> Total Purgeable Hydrocarbons (C6-C12), BTEX and MTBE by DHS LUFT - Quality Control <br /> Sequoia Analytical - Sacramento <br /> Reporting Spike Source %REC RPD <br /> Analyte Result Limit Units Level Result %REC Limits RPD Limit Notes <br /> atch 11020260-EPA 5030B P/T <br /> Blank(1020260-BLKI) ___ Prepared&Analyzed 02/23/01 <br /> Purgeable Hydrocarbons ND 500 ug/l <br /> Uluene <br /> nzene ND 0500 <br /> ND 0 500 " <br /> Ethylbenzene ND 0500 <br /> ylenes <br /> 500 <br /> ylenes(total) ND - 0 500 <br /> ethyl tent-butyl ether ND 250 <br /> Surrogate a a a-Ti i luorotoluene 951 100 951 60-140 <br /> ICS(1020260-BSI)- _ Prepared&Analyzed 02/23/01 <br /> enzene 834 0 500 ug/l 100 834 70-130 <br /> Toluene 897 0 500 100 887 70-130 <br /> nzene 904 0 500 too 904 70-130 <br /> s(total) 270 0 500 300 900 70-130 <br /> Methyl tert-butyl ether 882 250 100 882 70-130 <br /> Lr <br /> rogate a a a-Trifluorotoluene W 816 ]Go 816 60-140 <br /> atnx Spike(1020260-MS1) - Source S102249-02 Prepared&Analyzed 02/23/01 <br /> Benzene 842 0 500 ug/l 100 ND 842 60-140 <br /> Toluene 8 78 0 500 „ 100 ND 87 8 60-140 <br /> thylbenzene 9 25 0 500 100 ND 92 5 60-140 <br /> Xylenes(total) 280 0 500 300 ND 93 3 60-140 <br /> ethyl tert-butyl ether _ _ 9 15 2 50 100 ND 915 60-140 _ <br /> Surrogate ana-Trtfluorotoluene 10/ !o 0 101 60-140 <br /> Matrix Spike Dup(1020260-MSD1) _ --source 5102249-02 Prepared&Analyzed 02/23/01 <br /> tenzene 9 31 0 500 ug/l 10 0 ND 931 60-140 10 0 25 <br /> oluene 9 84 0 500 10 0 ND 984 60-140 1 1 4 25 <br /> Ethylbenzene 998 0 500 ]Go ND 998 60-140 7 59 25 <br />'Xylenes(total) et --� 299 —0 500 300 ND 997 60-140 6 25 <br /> Methyl tert-butyl ether 923 250 100 ND 923 60-140 0871 25 <br /> Surrogate a a a-Trifluorotoluene 110 100 110 60-140 <br /> JFia Analytical-Sacramento The results in this report apply to the samples analyzed in accordance with the chain of <br /> custody document This analytical report must be reproduced in its entirety <br />' Page 6 of 10 <br />