Superfund Innovative Technology Evaluation (SITE)
Note: EPA no longer updates this information, but it may be useful as a reference or resource.
This document evaluates the performance of the Novaterra, Inc. (formerly know as Toxic Treatments (USA), Inc. (TTUSA)) in situ steam/hot-air stripping technology and its applicability as an on-site treatment technique for hazardous waste site soil cleanup of volatile and semivolatile contaminants. The report addresses both technical and economic aspects of the technology.
A demonstration of the Novaterra, Inc. stripping technology was conducted beginning in the fall of 1989 at the GATX Annex Terminal site located at the Port of Los Angeles, California. Operational, sampling, and analysis data were carefully compiled to establish a database against which other data, as well as the vendor's claims for the technology, could be compared and evaluated. Conclusions about the technology's suitability for use in stripping the range of contaminants at this test site were reached, and extrapolated to consider application at sites with different contaminants and soil types.
The following conclusions were derived primarily from the Demonstration Test results, and supported by other available data: