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TABLE 6 REMEDIATION PILOT TEST GROUNDWATER EXTRACTION COMPO ENT - OPERATIONAL PERFORMANCE AND MASS REMOVAL SUMMARY Barnes Trucking, 1817 South Fresno Avenue, Stockton, California Analytical Results Mass Removed Cumulative Sewer Discharge Data Influent This Period b Mass Removed Hour A verage Date Sample Meter Totalizer Cumulative Time z period GRO DRO Benzene MTBE GRO DRO Benzene MTBE GRO DRO Benzene MTBE Reading Reading Flow(gallons) (gallons) (gallons) (µms') (µms) (µms ) (µg2) (lbs) (lbs) (lbs) (lbs) (lbs) (lbs) 4/29/13 6:57 509.2 453,360 -- -- -- Start of Test 4/29/13 ' 10:20 512.8 4532710 350 350 1 .62 500 150 37 <0.50 0.001 0.0004 0.00011 0.000001 0.001 0.0004 0.00011 0.000001 4/29/13 14:00 516.4 454,150 440 790 2.04 400 140 55 <0.50 0.002 0.001 0.0002 0.00000 0.003 0.001 0.0003 0.000 4/29/13 ' 16: 15 518.5 454,840 690 12480 5.48 19700 110 90 <1 .0 0.006 0.001 0.0004 0.00000 0.009 0.002 0.0007 0.00001 5/1 / 13 ' 8 :07 557.9 466,990 12, 150 13,630 5. 14 610 99 44 <0,50 0. 117 0.011 0.0068 0.00008 0. 126 0.012 0.0075 0.00008 5/3/ 13 6:00 591 .6 4739210 69220 19,850 3. 13 -- -- -- - 0.032 0.005 0.0023 0.00003 0. 158 0.017 0.0098 0.00011 LezendlKey. GRO = Gasoline Range Organics C4-C. 13 µg/L = microgi ams per liter DRO = Diesel Range Organics C13-C22 gpm = gallons 3er minute MTBE = Methyl tertiary butyl ether lbs = pounds - = data not cc Ilected / not calculated Notes, Not representative of actual flow rate, calculation affected by system down time. n Mass removed this period (pounds) = Average concentration (µg/L)[ between the sample da es) x Period gallons x (2.2046 x 10-9)(lb/µg) / 0.26418 (gal/L) ' Totalizer reading used to calculate sewer discharge flow rates we based on the most represerdative field data at time of sampling, due to actual readings were not obtained at the exact time of sampling. r Hour meter reading used to calculate sewer discharge flow rates are based on the most representative field data at time of sampling, due to actual readings were not obtained at the exact time of sampling. ' Due to the systems automatic shutdown prior to end of test, the last sample obtained is used as a data point to calculate the approximate mass removed. K.\Hames Tmcbng Tablc\Bama 0WDPETmdb1y 1 of 1 STRATUS