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I <br /> Table 1 Soil Vapor Extraction and Treatment System Data <br /> P y , ARCO Facility 2133, Stockton, California <br /> Continuous operation began on 1/11/95 <br /> Sample Averagt flow Days to Down day Percent Influent conc tratlonppinv Removal rate, Ibslda NU removal, lbs&gallons <br /> date Pariod rato- cf m ptriod in PLriod o c.ratnonal 3 PI I-G B I'PI I-G B I P]I-G B <br /> 1/11/95 Source test too 1 0 100% 590 1 7 22 1 005 22 lbs 00 lbs <br /> 219195 1111195-2/9/95 80 29 1 97% 480 45 144 oil 403 lbs 29 lbs <br /> 3/28/95 2/9/95-3/28195 80 47 34 28% 160 062 48 001 62 lbs 02 lbs <br /> 414195 3/28/95-414195 80 7 0 100% 190 047 57 001 40 lbs 0 1 lbs <br /> 513/95 4/4/95-5/3/95 100 29 1 97% 460 12 172 035 482 lbs 98 lbs <br /> 5/15/95 5/3/95-5/15195 100 12 1 96% 340 8 8 12 7 026 146 lbs 3 0 lbs <br /> 6/12/95 5/15/95-6/12/95 100 28 3 89% 240 1 8 9 0 005 225 lbs 13 1 b <br /> 7/8/95 6/12195-7/8/95 100 26 0 100% 140 <0 016 5 2 000 136 lbs 00 lbs <br /> 8/22/95 7/8/95-8/22195 80 45 0 100% 1200 41 359 096 1618 lbs 43 1 lbs <br /> 9119195 8122/95-9119/95 100 28 0 100% 480 <0 016 180 000 503 lbs 0 0 lbs <br /> 10/23/95 9/19/95-10/23/95 100 34 0 100% 240 <0 016 9 0 000 306 lbs 00 lbs <br /> 11/15/95 10123195-11115/95 100 23 0 100% 170 4 7 6 4 000 146 lbs 00 lbs <br /> 12/15/95(a) It/15/95-12115/95 100 30 6 80% 31 -- 12 -- 28 lbs -- lbs <br /> 1126196 12/15/95-1126/96 100 42 35 17% 117 -- 4 4 -- 31 lbs -- lbs <br /> 2114/96 1/26/96-2114/96 100 19 0 100% 916 343 -- 652 lbs -- lbs <br /> 3/27196 (b) 2114196-3/27/96 100 42 33 21% 10 -- 04 -- 3 lbs -- lbs <br /> 10/8196 (c) 10/8/96-10118/96 100 10 0 100% 33 -- 12 -- 12 lbs -- lbs <br /> Totals and averages 3131197-6/30/97 -- 91 91 0% -- -- -- -- 0 0 lbs 00 lbs <br /> for reporting period 0 0 gals 0 0 gals <br /> Totals and averages 1/11/95-6/30/97 95 808 470 42% 341 8 4 11 9 0 15 4815 lbs 604 lbs <br /> Cumulative 777 gals 8 3 gals <br /> Sample calculations <br /> Mass extraction rate cah-ulatnon <br /> lbs/day=("x"ppm/1,000,000)* ("Q" It^3/min)*("M W"]b/Ib-mol)*(60 min/hr)*(24 hr/day)*(Ib-mol/379 5 ft^3) <br /> where "x"is influent concentration in ppm <br /> "Q"is the average flow rate in fIA3/min <br /> "M W" is the molecular weight in lb/lb-mol (t 00 2 for TPH-G,78 1 for benzene) <br /> Gallons removal calculation <br /> gal removed=lbs/density,density in lb/gal(density for TAH-G is 6 2,benzene is 7 32) <br /> Notes <br /> (a)Beginning 12/15/95,samples analyzed in the field with a portable Photo Ionization Dectector(PID) <br /> (b)System oft'from 3/27196 through 1018196 due to high groundwater levels <br /> (c)System turned off on 10/18/96 due to low influent concentrations <br /> "--"=Not available or not applicable <br />