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• 819 Sinker Ave Ste 8 <br /> tz� Sequoia Sacramento,CA 95834 <br /> (916)921-9600 <br /> Analytical FAX(916)921 0100 <br /> a N r J www sequosalabs com <br /> -Ryan-Dublin Project Former Unocal 5098,Stockton,CA S302592 <br /> terra Court,Ste J Project Number N/A Reported <br /> ub11n CA,94568 Project Manager Deanna L Harding 03/10/03 17 17 <br /> Volatile Organic Compounds by EPA Method 8260E - Quality Control <br /> Sequoia Analytical - Sacramento <br /> Reporting Spike Source %REC RPD <br />:tch <br /> alyte Result Limit Units Level Result %REC Limits RPD Limit Notes <br /> 3030088-EPA 5030B SPIT <br /> Laboratory Control Sample(3030088-BS2) Prepared&Analyzed 03/07/03 <br /> zene 245 050 ug/I 25 0 98 70-130 <br /> orobenzene 22 6 050 25 0 90 70-130 <br /> I,1-Dichloroethene 225 050 25 0 90 70-130 <br /> fuene 24 0 050 250 96 70-130 <br /> chloroethene 202 050 25 0 81 70-130 <br /> t0g, et12-DCA-d4 29 0 25 0 116 60-140 <br /> "gate Dnbt omolluoromeihane 278 15 0 111 70-130 <br /> Surrogate I 1-DCA d4 29 0 250 116 70-130 <br /> trogate Toluene d8 274 „ 15 0 110 70-130 <br /> rogate 4-BFB 2.51 25 0 100 70-130 <br /> Spike(3030088-MSI) Source S302592-08 Prepared 03/06/03 Analyzed 03/07/03 <br /> 307 050 ugh 250 5 2 102 60-140 <br /> 0,*1..b,n=TIC 25 6 050 25 0 ND 102 60-140 <br /> 1 I-Dichloroethene 240 050 25 0 ND 96 60-140 <br /> uene 27 8 050 250 1 2 106 60-140 <br /> chloroethene 21 8 050 250 ND 87 60-140 <br /> tr"11te I 1-DCA d4 195 250 118 60-140 <br /> .1te DibromoJluoromethane 279 250 112 70-130 <br /> Surrogate 11-DCA-d4 295 25 0 118 70-130 <br /> rrogate Toluene d8 288 250 115 70-130 <br /> rrogate 4-BFB 25 0 250 100 70-130 <br /> atria Spike Pup(3030088-M SDI) Source S302592-08 Prepared 03/06/03 Analyzed 03/07/03 <br /> nzene 27 9 050 ug/1 25 0 52 91 60-140 10 25 <br /> Chlorobenzene 22 8 050 25 0 ND 91 60-140 12 25 <br /> 1Dichloroethene 21 1 050 25 0 ND 84 60-140 13 25 <br /> luene 245 050 250 1 2 93 60-140 13 25 <br /> Trichloroethene 192 050 25 0 ND 77 60-140 13 25 <br /> Iriogate 1 1-DCA d4 284 25 0 114 60-140 <br /> rrogate Dibromojluaromethone 273 15 0 109 70-130 <br /> rrogate 12-DCA-d4 28 4 250 114 70-130 <br /> Oia Analytical - Sacramento The results in this repot i apply to the samples analyzed in actor dance with the chain or <br /> custody document Unless otherwise stated t esults are i eported an a wet weight basis <br /> This analytical t epi i must be rep?oduced in its entirety <br /> Page 121 of 126 <br />