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f – — <br /> ' Hydro-Geo Consultants <br /> 2477 Porter Reid Ct Project Stockton <br /> Project Number T200081 <br /> Mt View CA,94040 Project Managcr John O'Rourke Reported <br /> 02/06/02 18 16 <br /> Volatile Organic Compounds by EPA Method 8021B- Quality Control <br />' SunStar Laboratories, Inc <br /> Analyte Reporting Spike Source %REC RPD <br />' Batch 2020506-GC Result Limit Units Level Result %REC Limits RPD Limit Notes <br /> Blank(2020506-BLK1) Prepared 02/05/02 Analyzed 02/06/02 <br />' Benzene ND 5 0 ug/kg <br /> Toluene ND 50 <br /> Ethylbenzene ND 5 0 " <br /> m,p-Xylene ND 10 <br />' o-Xylene ND 5 0 " <br /> Surrogate 4-Bromoflumobcnzene 1!1 125 <br /> 888 65-135 <br />' LCS(2020506-BSI) Prepared 02/05/02 Analyzed 02/06/02 <br /> Benzene 198 5 0 ug/kg 250 <br /> Toluene 792 70-130 <br /> 182 5 0 250 72 8 70-130 <br /> Ethylbenzene 185 5 0' 250 740 70-130 <br /> m,p-Xylene 378 10 <br /> o-Xylene <br /> 190 5 4 500 756 70-130 <br /> 2 <br /> Surrogate 4-Bromofluorobenzen50 <br /> 760 70-130 <br /> e 112 „ 50 <br /> 89 6 65-135 <br /> atrix Spike(2020506-MSI) Source T200081-04 PreEliMPBpared 02/05/02 Analyzed 02/06/02 <br /> enzene 198 S 0 ug/kg 250 ND <br /> Toluene 79 2 75-125 <br /> 195 50 250 ND 780 75-125 <br /> Ethylbenzene 195 50 250 ND 78 0 75-125 <br /> O-Xylene <br /> ne lene 430 10 500 ND 860 75-125 <br /> -Xyle200 5 0 250 ND <br /> Soo 75-125 <br /> Surrogate 4-81om1 luorobenzene 112' 125 896 65-135 <br /> Matrix Spike Dup(2020506-MSD1) Source T200081-04 Prepared 02/05/02 Analyzed 02/06/02 <br /> Benzene <br />' Toluene 188 5 0 ug/kg 250 ND 75 2 75-125 5 18 20 190 5 0 250 ND 760 75-125 260 20 <br /> Ethylbenzene 192 50 250 ND 768 75-125 1 55 20 <br /> m,p-Xylene 410 10 500 ND 82 0 75-125 4 76 20 <br /> o-Xylene 202 50' 250 ND 808 75-125 0 995 20 Surrogate 4-Broinofluorobenzene 113 125 <br /> 904 65-135 <br /> 1 <br /> I <br /> i <br /> 0unStar Laboratories,Inc The results to this report apply to the samples analyzed to accordance wtlh the chain of <br /> icustody document 772's analytical report must be reproduced in its entirely <br /> Lea eaucha"Project <br /> Page 30 of 36 <br />