ABSTRACT

This chapter describes an attempt to gain a better understanding of the processes governing the effectiveness of soil venting as a soil remediation process, through the results from a field study. Soil gas samples were obtained from the monitoring wells prior to operation of the venting system. To confirm the assumption that soil venting could be practiced at this site, and to gain information needed for design considerations, an air permeability test was conducted. In Johnson et al., it is suggested that soil venting system designs be based on site geology, soil characteristics, location of the saturated zone, location of the contaminant, and contaminant type. As predicted, one must be careful not to apply soil venting in situations where other remediation options are likely to be more efficient and cost-effective. In February 1986, underground steel gasoline storage tanks were excavated and replaced at a service station located in Costa Mesa, California.