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a - <br /> 1 <br /> j <br /> P. No action, landfilling, and chemical nautralization are not <br /> s � , <br /> considered appropriate strategies for this site and are not <br /> I <br /> listed or discussed. <br /> A <br /> { <br /> SOIL EXCAVATION <br /> It is possible to excavate all of the soil down to the saturated <br /> ' zone. However, there are several disadvantages to this <br /> procedure. It would necessitate closure of the station. It <br /> 1A <br /> would require transport and disposal of the soil in a secure <br /> land-fill. Finally, it would not solve the probler. of the <br /> contamination in the saturated zone and groundwater athere most of <br /> the petroleum hydrocarbons are currently found. Therefore, this <br /> M strategy. is. not considered further in this proposal. <br /> This procedure has all the disadvantages of soil excavation, plus <br /> the additional. ro 4 <br /> problem of space necessary far aeration of the <br /> soil. Most f the available surface space is in use and, . <br /> therefore, option tion is-not considered further. <br /> x , { <br /> ' S' T <br /> ,f SOIL FLUSHING <br /> K <br /> This technique flushes affected soils with water. This can be <br /> f � <br /> effective in removing. highly water soluble anti/or materials which <br /> � t <br /> are not strongly adsorbed onto the soil particles. Gasoline <br /> components do not fall into either category, and thus the use of <br /> this technique would not result in the desired level of <br /> F T remediatiOn• ------ --------------------- -------- -r— <br /> } <br /> 33 <br /> 20 . <br /> s , <br /> � i ��:k,tauwr.a.,xav aa...r.w-s,..r,......,.,,,....•--�,..-.- ... -. s- .. . .,_. . .. <br /> Mn <br /> d <br />