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Light, nonaqueous-phase liquid (LNAPL) management (LNAPL assessment and remediation) presents some of the greatest corrective action and cleanup compliance challenges to petroleum manufacturing, storage, and handling facilities such as refineries, bulk product terminals, gas stations, airports, and military bases<\/p>\n
The management of LNAPL requires to first identify the specific LNAPL composition and saturation concerns the particular LNAPL site conditions pose, if any. Next, apply the appropriate LNAPL remedial technology to abate those concerns. After all are addressed and any necessary actions with long-term stewardship are completed, the site should be eligible for no further action (NFA) status, if such status is applicable.<\/p>\n
Over the past few decades, LNAPL remedial technologies have evolved from conventional pumping or hydraulic recovery systems to a variety of innovative, aggressive, and experimental technologies that address the mobile and residual LNAPL fractions, as well as volatile and dissolved-phase plumes. Unfortunately, determining the appropriate level of LNAPL management and choosing among the large number of available LNAPL remedial technologies to provide that level of LNAPL management can be a significant challenge.<\/p>\n
The Interstate Technology & Regulatory Council (ITRC) LNAPLs Team has developed a suite of guidance documents and training to address emerging LNAPL concepts and remedial technology solutions. Specifically, the LNAPLs Team developed the technical\/ regulatory guidance document (guidance) to provide a framework that helps to systematically<\/p>\n\t \n\t\t