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8l9 Sinker Av,nue Suite 8 <br /> SL'(ll101a Sz ranie95634 <br /> (91 <br /> (916))921 9600 <br /> Analytical t A\(9i6)921 0100 <br /> n�i ti sequai:l it's uom <br /> URS-Sac Gateway Oaks Project ARCO 434, Lodi,CA <br /> 2870 Gateway Oaks Dr, Ste 300 Proles Number 434,Lodi,CA R,purtul <br /> Sacramento CA,95833 i'roles Manager Vemon Elarth 07/08/02 16 02 <br /> Total Purgeable Hydrocarbons and BTEX by DHS LUFT-Quality Control <br /> Sequoia Analytical-Sacramento <br /> Reporimb Spike Source %RL G Rl'D <br /> Analyte R,Sult Limit Units Level Result %REC Limits RPD Limit tvotcs <br /> Batch 2070028-EPA 5030B(PIT) <br /> Blank(2070028-BLKI) Prepared&Analyzed 06/28/02 <br /> Purgeable Ilydrocarbohs ND 50 ug/1 <br /> Benzene ND 0 50 <br /> Toluene ND 0 50 " <br /> Ethylbenzene ND 0 50 <br /> Xylenes(total) ND 0 50 <br /> Surrogate a a a-Trifluorotoluene 100 100 100 60 140 <br /> LCS(2070028-BSI) Prepared&Analyzed 06/28/02 <br /> Benzene 9 58 0 50 ug/I l0 0 96 70-130 <br /> Toluene 10 1 0 50 to 0 101 70-130 <br /> Ethylbenzene to 0 0 50 10 0 100 70-130 <br /> ,.,Xylenes(total) 30 5 0 50 30 0 102 70-130 <br /> If-rogate a a a Trrfluorotoluene 10 7 10 0 107 60 140 <br /> Matrix Spike(2070028-MSI) Source 5206335-02 Prepared&Analyzed 06/28/02 <br /> Benzene 9 30 0 50 ug/l 10 0 ND 88 60-140 <br /> Toluene 9 97 0 50 10 0 ND l00 60-140 <br /> Ethylbenzene 9 81 050 10 0 ND 98 60-140 <br /> Xvlenes(total) 30 1 050 30 0 ND too 60-140 <br /> Surrogate a a a-Trrfluorotoluene 106 10 0 106 60-140 <br /> Matrix Spike Du (2070028-MSD1) Source 5206335-02 Prepared&Analyzed 06/28/02 <br /> Benzene 9 84 0 50 ug/l too ND 94 60-140 6 25 <br /> Toluene 10 3 0 50 10 0 ND 103 60 140 3 25 <br /> Ethylbenzene 10 3 0 50 10 0 ND 103 60 140 5 25 <br /> Xylenes(total) 31 5 0 50 300 ND 105 60 140 5 25 <br /> Surrogate a a a-Trrfluorotoluene 103 10 0 103 60-140 <br /> quota Analytical-Sacramento The results in lhrs report apply to th,samples anahzed to accordant,txir{r the chain <br /> V of eurtodi document This analytical report must be reproduced it;it%k nurt tv <br /> Page Page 7 of 10 <br /> t <br />