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TABLE 4 <br /> SUMMARY OF ANALYTICAL RESULTS <br /> I L Former Canteen Facility <br /> 1500 Shaw Road <br /> Stockton, California <br /> Ethyl- Corrected Adjusted <br />' r f Sample Sample Benzene Toluene Benzene Xylenes BTEX MTBE TPH P[Ds Rcvy/Emis <br /> IL Location Date (pg/L) (pg/L) (pg/L) (pg/L) (pg/L) (WJL) (pg/L) ( pmv) (lbs/hr)4 <br /> SVE Influent 12/03/04 670 430 160 780 1,437 <50 4,100 277 0 690 <br /> Effluent 1 050 050 050 050 200 < 1 0 ----250 1 86 0 001 <br /> ICE Unit Efficiency. 993% 99.9% 99.7% 999% 99.9% 994% 993% 1 999% <br /> SVE Influent 01/21/05 530 150 50 280 533 <50 2,800 477 0 789 <br /> f Effluent <br /> 430 290 160 850 134 <2 5 480 131 0 008 <br /> l ICE Unit Efficiency 919% 807% 68.0% 696% 74.8% 82.9% 973% 990% <br /> SVE Influent 1 03/18/05 500 120 43 210 423 <50 2,200 500 0 880 <br /> II Effluent 100 5 8 46 250 36 <2 5 150 207 0 001 <br /> ICE Unrt E icien 980% 952% 89.3% 88 1% ; 914% — 932% 996% 999% <br /> Ir I NOTES <br /> l 1 To determine the influent and effluent concentrations,the following analytical methods were utilized <br /> BTEX – Modified EPA Method SW846-8021B <br /> r I MTBE – Modified EPA Method SW846-8021B <br /> L TPH – Modified EPA Method SW846-8015 XG <br /> 2 The shaded values indicate constituents which were found to be MDI, One half the BDL is presented for calculation purposes <br /> 3 SVE Infl indicates samples obtained prior to the ICE unit and represent only the vapors being removed from the subsurface <br /> 5/28 The ICE effluent includes the remaining hydrocarbons from BOTH the Influent stream and the supplemental propane supply <br /> For these reasons,the "ICE Unit Efficiency"is inherently underestimated(the actual number is higher than indicated) <br /> 4 The in-flow of propane has been added to the Influent recovery rates to get an accurate portrayal of destruction efficiency <br /> L <br /> L <br /> I L <br /> I L <br /> L <br />