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JM Equipment <br /> Chemical Oxidation Test Report <br /> Total Hydrocarbon Versus pounds of Oxidents Injected <br /> ectad J <br /> ' JM Equipment <br /> C hamical Oadahon Test(March-.lune 2004) <br /> 2.25 —-- ---- �-Mw_J <br /> 200 GP-2 <br /> GP-3 <br /> ' 175 Average <br /> r <br /> CL .f f <br /> � 150 <br /> ' o 3 <br /> 125 - - --- - - — <br /> L <br /> z 100 J <br /> F- 75 <br /> 9 <br /> 50 <br /> 25 - <br /> 00 100 200 300 400 500 600 <br /> ' Lb Oxidants <br /> ' Figure 3- Total Hydrocarbon vs Pounds of Oxidants Injected <br /> ' The destruction of hydrocarbons with hydrogen peroxide or ozone appears to be effective The <br /> hydrogen peroxide)Injections reduced the hydrocarbon levels to wells MW-9 and GP-1 over 50% <br /> following the first three injections (see Figure 4 below). A hydrocarbon destruction rate of 97% <br /> by ozone was shown by analyzing the dissolved concentrations from well MW-9 before and after <br /> an ozone injection event However, after two weeks the hydrocarbon concentration in well MW- <br /> 9 rebounded to nearly the hydrocarbon level that was detected before the infection event This <br />' result would indicate that adsorbed-phase hydrocarbons from the clay soils leached into the <br /> groundwater during the two weeks between infections Therefore, the amount of oxidant <br /> required to remediate the site is significantly higher than expected, due to the amount of <br /> adsorbed-phase hydrocarbons <br /> The target of the test was to determine the applicability of peroxide and ozone injection at the <br /> site Due to the clay that exists onsite, this passive approach only exemplified a radius of <br /> Applied Process Technology, Inc Confidential Information <br /> 09/20/04 <br /> APT so-o19 wrww aptwater cont Page 8 of 1] <br />