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A S S Q C I A T E 5 I N C. <br />TPHg in groundwater <br />-'" (5,700+50)12 ug TPHg x 1 kq x 3.7 <br />1 L Water 1,000,000,000 ug 1 gal <br />t <br />= 0.21 kq TPHg x 2.2 Ib <br />day 1 kg <br />qw <br />BTEX in groundwater <br />=(1,656+3.5)/2 ug BTEX x 1 kg x <br />1 L Water 1,000,000,000 ug <br />n <br />x 5,280 gal x 24 hours <br />6.5 hours 1 day <br />0.47 pounds of TPHg removed per day <br />3.78 L x 5,280 gal x 24 hours <br />1 gal 6.5 hours 1 day <br />0.06 kq BTEX x 2.2 Ib = 0.13 pounds of BTEX removed per day <br />day 1 kg <br />3.6 <br />On January 30 and 31, and February 1, 2002, the appro <br />during the pumping test and step drawdown test was i <br />and discharged to the City of Lodi sanitary sewer syste <br />the effluent stream of the carbon treatment system. c <br />sample identification, placed on ice, and' shipped under <br />Laboratories for chemical analysis of TPHg by EPA m <br />and MTBE, ETBE, DIPS, TBA, TAME, 1,2 -DC <br />Groundwater analytical results are summarized in 7 <br />presented in Appendix C. <br />Following completion of the treatment of the extractei <br />activated carbon used in the treatment were sampled <br />transported from the site. <br />4.0 DISCUSSION <br />The groundwater extraction pilot test yielded a pumpir <br />ROI of approximately 90 feet. In accordance with th4 <br />approximately 0. 16 pounds of TPHg and BTEX were i <br />pumping pilot test. Assuming that a permanent grounc <br />in well EW -1, the ROI would extend beyond the sou <br />Lane in the downgradient direction. Installation of <br />system would likely prevent groundwater from migrath <br />wA259571reportslpumptest.doc 5 <br />imately 5,500 gallons of water extracted <br />tered through granular activated carbon <br />�. Three water samples were taken from <br />mple containers were then labeled with <br />hain-of-custody to State -certified Argon <br />hod 8015, BTEX by EPA method 8020, <br />, and EDB by EPA method 8260. <br />ble 2, and Iaboratory data sheets are <br />I groundwater, the canisters of granular <br />for analysis, profiled for disposal, and <br />rate of approximately 13.54 gpm and a <br />removal rates calculated in Section 3.5, <br />moved during the 6.5 -hour groundwater <br />eater extraction pump would be installed <br />tern edge of the site beneath Kettleman <br />G groundwater extraction and treatment <br />off-site. <br />4. <br />