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F( eq <br /> JJW GEOSCIENCES - Project#801371 <br /> ` Valley Showcase/Stockton, California <br /> TEG PROJECT#90913CA <br /> BTEX EPA 8020 & TPH EPA mod8015 ANALYSES OF SOILS <br /> SAMPLE DATE DATE C5-C11 BENZENE TOLUENE ETHYLBNZ XYLENES <br /> NUMBER SAMPLED ANALYZED mglkg Tglkg mglkg mglkgm <br /> 09V <br /> BLANK 9113199 nd nd nd nd nd <br /> MW-5-1 913199 9113199 nd 0.030 0.023 0.032 0.066 <br /> a. MW-5-2 913199 9113199 14 0.37 nd' 0.14 1.1 <br /> MW-5-3 913199 911,3x99 1300 4.1 1.2 8.4 31 <br /> MW-5-4 913/99 9113199 nd 0.010 0.047 0.042 0.30 <br /> V <br /> REPORTING LIMITS 1.0 0.005 0.005 0.005 0.005 <br /> 'nd' INDICATES NOT DETECTED A T LISTED REPORTING LIMITS. <br /> 'C5-C11' INDICATES GASOLINE RANGE. <br /> Reporting Limit =0.10 mg/kg due to dilution. <br /> QA/QC DATA - LCS/LCSD - SOIL <br /> DATE GASOLINE BENZENE TOLUENE ETHYLBNZ XYLENES <br /> ANALYZED m 1kg mg/kg mg/kg mg/kg mg/kg <br /> Spiked Conc. 9113199 20.0 0.0100 0.0100 0.0100 0.0300 <br /> Measured Conc. 19.7 0.0093 0.0094 0.0100 0.0321 <br /> `,. %Recovery 98.5% 93.0% 94.0% 100.0% 107.0% <br /> Spiked Conc. 9113199 20.0 0.0100 0.0100 0.0100 0.0300 <br /> ,., Measured Conc. 17.9 0.0105 0.0108 0.0107 0.0327 <br /> %Recovery 89.5% 105.0% 108.0% 107.0% 109.0% <br /> RPD 9.6% 12.1% 13.9% 6.8% 1.9% <br /> ACCEPTABLE RPD LIMIT= 15% <br /> a.. _ ANALYSES PERFORMED IN TEG's DHS CERTIFIED LAB <br /> ANALYSES PERFORMED BY: Mr. Leif Jonsson <br /> DATA REVIEWED BY., Mr. Henry Wilkinson <br /> 11350 Monier Park Place, Rancho Cordova, CA 95742 Phone: (916) 853-8010 Fax: (916) 853-8020 <br /> v <br />