The presence of nonaqueous phase hydrocarbons such as gasoline, coal tar, creosote, and similar wastes in subsurface soil is a pervasive problem in industrialized countries. The optical image profiler (OIP)* provides an efficient and effective way to detect the presence and extent of these hazardous materials in subsurface soil. When used in conjunction with other direct push logging sensors (electrical conductivity, hydraulic profiling tool, CPT) it provides an efficient means to develop a high-resolution conceptual site model for facilities located in soils and unconsolidated formations. The OIP data and resultant site models can be used to guide sampling, monitoring, and remediation efforts at many sites to reduce the time to and cost of closure. This technology and standard will be valuable for industry, regulators, and the regulated community to advance site assessment, investigation and remediation activities more efficiently.
The title and scope are in draft form and are under development within this ASTM Committee.