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5.2 Identification gg generalResponse ri <br /> Based on information collected during the site investigations, and <br /> available federal and state guidance documents, several potential general <br /> response actions were identified. General response actions are listed in <br /> Table 5-1 with associated remedial technologies, and are discussed below. <br /> 5.2.1 No Action <br /> The No-Action response category serves as baseline against which other <br /> actions can be compared. The No-Action category can involve some activity <br /> such as groundwater monitoring, air quality monitoring, or soil sampling in <br /> order to identify changes in site conditions. <br /> 5.2.2 Containment <br /> The containment response category involves leaving contamination in place <br /> and minimizing potential for migration by using technologies such as surface <br /> caps, topsoil covers, drainage grading, and revegetation. <br /> 5.2.3 Off-Site Disposal <br /> The disposal category involves excavating or otherwise removing <br /> contaminated soils or soils or structures (either completely or partially) and <br /> disposing them in an appropriate off-site landfill or vault. <br /> 5.2.4 Treatment <br /> This category involves in situ or (more commonly) remove-and-treat <br /> technologies that eliminate or reduce the contaminant or its mobility in the <br /> soil. Remove-and-treat technologies can be performed off-site or on-site. <br /> Once treated, material can be backfilled in the excavation or transported to <br /> an off-site disposal facility. <br /> 5-3 <br /> GGA/0186b <br />