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0 0 <br /> LAMB RIA <br /> Table 3 Groundwater Extraction Mass Removal Data,She'll-branded Service Station,2575 Country C16W1 x&var#,Stockton,Ctaillosma <br /> TPHg Benzene MTBE <br /> Site Flaw Meier Cumulative Flow TPHg Penod Cumulative Benzene Period Cumulative MTBE Period Cumulative <br /> Visit Reading Volume Rate Cone Removal Removal Cone Removal Removal Cone Removal Removal Active <br /> (mmlddl ) ( al) ( al) { m) (ppb) (pounds) (pounds) (ppb) (pounds) (pounds) (ppb) (pounds) ( unds) Wells Comments <br /> 05/31/01 20 0 0 0 RW]A System Stimip <br /> 05/31/01 220 200 36 000 0 060 0 060 9,400 0 016 0 016 63,000 0 105 0 105 RW-1A <br /> 06/20/01 290 270 000 3 000 0 002 0 062 650 0 000 0 016 2 800 0 002 0 107 RW-]A <br /> 06125/01 6 950 6 930 093 28 000 156 162 5 700 0 317 0 333 16,000 0 889 0 996 RW IA <br /> 07/16/01 8 222 8,202 004 34 000 0 361 198 9 800 0 104 0 437 61000 0 647 164 RW-lA <br /> 07/23/01 16 610 16 590 083 23 000 161 359 4,600 0 322 0 759 33 000 231 395 RW lA <br /> 08/02101 31 200 31 190 101 47 000 572 931 12 000 146 222 87 000 106 145 RW IA <br /> 08/20/01 33 320 33,300 008 44,000 0 778 101 11,000 0 195 241 99 000 175 163 RW lA <br /> 09/06/01 67 750 67 730 141 50 000 144 245 10000 287 520 110 000 316 479 RW IA <br /> 09!21101 96 310 96 290 132 53 000 126 37 1 9,800 234 762 110,000 262 74 1 RW-1A <br /> 10/03/01 98 030 98 010 010 47,000 0 675 378 12 000 0 172 780 150,000 2 15 763 RW IA <br /> 10/16/01 100 400 100 380 013 45 000 0 890 386 12 000 0 237 803 200 000 396 802 RW IA <br /> Carbon changeout performed on 1111101 <br /> System downtime approximately 12 <br /> 11/08/01 104,340 104 320 012 60 000 0 822 395 12,000 0 395 843 160 000 526 855 RW-lA hours <br /> 11/21101 109 740 109 720 029 33 000 149 410 900.0 0 406 883 110 000 496 904 RW-lA <br /> Total Gallons Extracted 109,720 Total Pounds Removed 41.0 Tot.1 ft.&Remo%d, 8,133Tb� g "A <br /> Total Gad ttlitdtsved 6 72 TO Gelbtr lientq '142 <br /> T+tt,t 111.4 <br /> Abbrevwtions&Notes <br /> TPHg=Totai purgeable hydrocarbons as gasoline <br /> MTBE=Methyl tent-butyl ether <br /> Cone =Concentration <br /> ppb=Parts per billion equivalent toµg/L <br /> µg/L=Micrograms per]iter <br /> L=Liter <br /> gpm=Gallons per minute <br /> gal=Gallon <br /> g=Gram <br /> Mass removed based on the formula volume extracted(gal)x Concentration(µg/L)x(g1106µg)x(pound/453 6g)x(3 785 Llgal) <br /> When constituents are not detected the concentration is assumed to be equal to half the detection limit in subsequent calculations <br /> Volume removal data based on the formula mass(pounds)x(density)1(cm31g)x 453 6(glpound)x(UI000 cm)x(gal/3 785 L) <br /> Density inputs TPHg=0 73 glcm3,TPHd=0 87 g/cm' MTBE=0 74 g/cm' <br /> TPHGg benzene and MTBE analyzed by EPA Method 8260E <br /> 1 <br /> Page 1 of 1 <br /> 0783 <br />