ARCHIVED REPORTS XR0010134 - Laserfiche WebLink

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' Draft • would require the installation of air sparging wells, soil vapor extraction wells, and a vapor treatment system Finally, the cost for this technology would be much greater than those for the other technologies evaluated 412 Fenton's Oxidation Fenton's oxidation was not selected as the remedial technology because of the low permeability of the aquifer, which would not allow for sufficient distribution of compounds in the subsurface In addition, this technology would require the installation of new wells at the site, therefore, this alternative would be more expensive than extraction and treatment and enhanced bioremediation Finally, this technology requires the injection of acetic acid and iron into the subsurface, this is not expected to be acceptable to the County and CVRWQB 413 Ground Water Extraction and Treatment Ground water extraction and treatment was not selected as the remedial technology because of the low permeability of the aquifer Based on the results of the slug tests and the grain size analysis, the low permeability aquifer would not allow for effective capture of ground water Therefore, 10 even the installation of several new extraction wells would not necessarily be sufficient to remove enough ground water to cause a significant ' reduction in the concentration of chemicals in ground water The costs to install these new wells and associated instrumentation and piping would represent a significant expense for little benefit 41. 4 Enhanced Bioremediation ' Enhanced bioremediation using ORC would be effective in reducing the mass of TPH-g and BTEX compounds beneath the site As with the other remedial technologies, the low permeability of the aquifer will reduce the ' effectiveness of this technology However, greater effectiveness can be achieved with this technology by injection of ORC at numerous locations ' at each UST ORC injection can be performed using GeoProbe sampling rig 1 I i ' 13