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Kerfoot Technologies Technical Papers Page 2 of 3 <br /> PtL47'�S'C <br /> $UANMARY OF GRO UNDWATER FIELD DATA <br /> Wail 10 Dale Camp Conductivity Dlasolyad l"+uxa iron C nahattc <br /> T400 H T <br /> �' 1°�} {rtiSJcm) Ox�ygan ORP� � lffl� WWI <br /> Magl gtl} ltoading { <br /> Im of water <br /> UN 13 2124JO0 1007 NM 129 910 NM NM Is NM PiMW <br /> 41121170 1346 724 t3 6 1100 3 000 NM 3>4 O.438n NO) <br /> 4117100 1545 740 iS 5 757 1000 $25 10 C00 30 <br /> +0!20100 1240 710 146 067 1 750 3SO 0_43 0 tap 40 <br /> 4J24= 10 20 740 14.3 785 0 750 13s", 00 0 00 30 <br /> slim 1510 720 157 811 1000 ?.6• 00 000 30 <br /> &9)00 916 710 149 866 1 004 -25, DO 027 MIA— <br /> sr.12a 11505 740 16,.7 a63 1 250 Ulla, 00 0.22 NW. <br /> ?4W-21 2)23+4.'0 1131 a$0 12.9 480 NM NNI 12 NM f+thStil <br /> 4112100 1448 751 147 960 1800 213 40 000 two, <br /> 4117100 MO 710 1" 861 0 500 266 0.0 0 W 100 <br /> 4120100 ills 7 20 15.0 a fa 1 000 6W 0.0 ow 1010 <br /> 4J24= 020 720 15.6 Q76 1 540 95M 00 10 00 &0 <br /> slim 14 20 720 158 &as 1 1500 35 00 000 100 <br /> 1170 to is 700 156 874 2OUO WAI 00 017 pvv. <br /> WX00 1450 720 177 8.b2 3 ODD NiA* 00 0115 NWA" <br /> dotes <br /> SWarn tumti d on after Bala coltectad on 4/12100 <br /> "Insfla TWk balm od to be rniulhmctlnrav <br /> ••SySIarn na talg&ramIng,twnedCro$ffl 0 <br /> l+>ows conned t19fd'o pact Start-up <br /> Sample wmidAy hfg1k rosufts may not be reliatAu <br /> flow saw now ORP metm <br /> Figure 2 Pilot test Summary of groundwater field data <br /> Procedure Documents Quick Results <br /> Initial results of the treatment were NIME Ricauft—Pilot Oxanas rgo <br /> 44rtoring by three indicators produaftTor "nal <br /> 100 <br /> o VOC removal by groundwater sampling <br /> from monitoring wells and certified <br /> laboratory analysis <br /> e Dissolved oxygen (D O ) field 7z <br /> determinations on groundwater grab "_7 <br /> samples from monitoring wells <br /> o Oxidation-reduction potential (ORP) alae <br /> field determinations on groundwater 67 <br /> grab samples ace --- --- <br /> Groundwater sampling showed an immediate <br /> rise in concentration of MTBE and benzene due <br /> to mixing followed by a progressive drop In <br /> concentration The agitation of the <br /> groundwater and capillary pores by the fine <br /> bubbles often strips adsorbed fractions The <br /> mixed concentrations are often a better 04MM)a W WWM ovMW OW29M MXM= ftmra WIS" W4M <br /> measure of total mass for treatment than ala+► <br /> solely the aqueous fraction The aivrlssru�-�-�—MEZ11s <br /> concentrations of MTBE from monitoring wells <br /> placed at 3 meters' and 4 meters' distance Figure 3 MTBE results Pilot ozone sparge Colorado Products Termial <br /> from the Spargepoint® rose to 1300 and 550 <br /> ppb before converging to less than 1.00 ppb for a removal efficiency of 99 9% and 99 8% respectively after 5 t weeks of operation <br /> Benzene rose to a high of 4300 ppb before dropping to below 700 ppb for 99 80/o removal efficiency over 5 $ weeks <br /> William B Kerfoot, Ph D, is President and an LSP with K-V Associates, Inc, Mashpee, Massachusetts <br /> s McGrath is a principal Geochemist with SECOR International, Inc, Oakland, California <br /> } <br /> About Kerfoot Technologies I Our Technology I Kerfoot Technology Products I Contact Us I C-SPARC3ERS <br /> http //www kva-equipment com/product php?14,2,28806,ker28806,,,Doc,page htrnl 1111012004 <br />