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I <br /> ITABLE 4 <br /> SUMMARY OF ANALYTICAL RESULTS <br /> IFormer Canteen Facility <br /> 1500 Shaw Road <br /> IStockton, California <br /> Ethyl- Corrected Adjusted <br /> I Sample Sample Benzene Toluene Benzene Xylenes BTEX MTBE TPH P1Ds Rcvy/Emis <br /> Location Date (µg/L) OWL) (µg/L) (gg/L) (µgIL) (gg/L) (gg/L) (ppmv) (lbs/hr)4 <br /> SVE Infl 03/25/04 350 1,000 110 480 1,940 500 15,000 3,230 <br /> IEffluent 390 340 920 460 93 1 250 270 27 <br /> ICE Unit Efficiency 989% 966% 916% 904% 952% 950% 982% 992% <br /> SVE Infl 04/02/04 290 490 30 100 910 500 12,000 4,120 <br /> I Effluent 0 250 0 250 0 250 0 250 100 250 25 32 <br /> ICE Unit Efficiency 999% 999% 992% 998% 999% 998% 99.2% <br /> I SVE Infl 04/16/04 230 370 18 69 687 500 5,100 1,099 <br /> Effluent 0 250 0 250 0 250 0 250 100 250 25 68 <br /> ICE Unit Efficiency 999% 999% 986% 996% 999% --- 995% 938% <br /> I ,SVE Infl 05/07/04 230 520 230 990 872 500 7,100 647 <br /> Effluent 340 160 150 680 277 025 1,400 28 <br /> ICE Unit Efficiency 852% 692% 348% 31.3% 682% --- 803% 957% <br /> SVE Infl 05/19/04 160 480 280 120 788 500 7,100 647 <br /> Effluent 130 110 140 680 205 025 960 28 <br /> IICE Unit Efficiency 919% 771% 500% 433% 740% -- 865% 957% <br /> SVE Infl 06/04/04 100 370 250 99 594 <25 5,800 2,012 1 938 <br /> I Effluent 1 110 90 110 450 157 <2 5 880 457 0 035 <br /> ICE Unit Efficiency 890% 75.7% 56 0% 545% 736% 848% 977% 982% <br /> SVE Infl 07/28/04 100 720 790 380 1,279 <50 8,000 6,679 4 485 <br /> I Effluent 1 0 125 0 125 0 125 0 125 0 500 <2 5 12 5 2 13 0 002 <br /> ICE Unit Efficiency 999% -1000% 998% 1000% 1000% 998% 1000% 1000% <br /> I SVE Influent 09/03/04 550 370 530 240 718 <50 5,500 780 1 019 <br /> Effluent 1 200 380 130 600 113 <2 5 500 532 0 037 <br /> ICE Unit Efficient 964% 897% 755% 750% 843% - 909% 93.2% 964% <br /> I NOTES <br /> 1 To determine the influent and effluent concentrations, the following analytical methods were utilized <br /> I BTEX — Modified EPA Method SW846-8021B <br /> MTBE — Modified EPA Method SW846-8021B <br /> TPH — Modified EPA Method SW846-8015 XG <br /> I2 The shaded values indicate constituents which were found to be MDL One half the BDL is presented for calculation purposes <br /> 03 SVE Infl indicates samples obtained prior to the ICE unit and represent only the vapors being removed from the subsurface <br /> 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 /> I <br />