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cbCurtis &Tompkins,Ltd. <br /> Curtis & Tompkins laboratories Analytical Report <br /> Lab #: 171535 Location: SDHR-Stockton <br /> Client: Treadwell & Rollo Prep: EPA 5030B <br /> Project#: 2597.10 <br /> Matrix: Soil Samp e : 04 02 04 <br /> Basis: as received Received: 04/02/04 <br /> Field ID: 15B6-NSW3-6 Diln Fac: 1. 000 <br /> Type: SAMPLE Batch#: 90339 <br /> Lab ID: 171535-019 Analyzed: 04/15/04 <br /> Analyte Resu1' KL Uni: s . An:a1 .s. 's <br /> Gasoline C7-C12 Ni) 1.7 mg Kg EPA 801513 <br /> Benzene ND 5.5 ug/Kg EPA B0213 <br /> Toluene ND 5 .5 ug/Kg EPA 8021B <br /> Ethylbenzene ND 5 .5 ug/Kg EPA 8021B <br /> m,p-Xylenes ND 5.5 ug/Kg EPA 8021E <br /> o-Xvlene ND 5 .5 ua/Ka EPA 8021B <br /> Surrogate %REC: Limits <br /> lririuorotoluene (FID) 95 71-138 EPA 8015B <br /> Bromofluorobenzene (FID) 113 73-143 EPA 8015B <br /> Trifluorotoluene (PID) 93 55-135 EPA 8021B <br /> Bromofluorobenzene PID 106 58-135 EPA 802113 <br /> Field ID: 15B6-B075-6 Diln Fac: 1.000 <br /> Type: SAMPLE Batch#: 90339 <br /> Lab ID: 171535-020 Analyzed: 04/15/04 <br /> Analyte esula h <br /> I Sts Anal sis <br /> Gasoline C7-C12 5 .2 H Y 0 . 97 mg Kg EPA 8015E <br /> Benzene ND 4 . 9 ug/Kg EPA 8021B <br /> Toluene ND 4 .9 ug/Kg EPA 8021E <br /> Ethylbenzene ND 4 .9 ug/Kg EPA 8021B <br /> m,p-Xylenes ND 4 .9 ug/Kg EPA 8021E <br /> o-Xvlene ND 4 . 9 ucj/Kq EPA 8021B <br /> Surrogate —%RE imits .. ..Analvsis ; <br /> Trifiuorotoluene (FID) 90 71-136 EPA 8015E <br /> Bromofluorobenzene (FID) 131 73-143 EPA 8015B <br /> Trifluorotoluene (PID) 89 55-135 EPA 8021B <br /> Bromofluorobenzene PID 109 58-135 EPA 8021B <br /> *= Value outside of QC limits; see narrative <br /> C= Presence confirmed, but RPD between columns exceeds 40% <br /> H= Heavier hydrocarbons contributed to the quantitation <br /> y= Sample exhibits chromatographic pattern which does not resemble standard <br /> b= See narrative <br /> ND= Not Detected <br /> RL= Reporting Limit <br /> >LR= Response exceeds instrument ' s linear range <br /> Page 7 of 9 Z.1 <br />