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RAPID OPTICAL SCREEN TOOL (ROST): INNOVATIVE TECHNOLOGY EVALUATION REPORT
Citation:
Hess, E. AND D. Hamilton. RAPID OPTICAL SCREEN TOOL (ROST): INNOVATIVE TECHNOLOGY EVALUATION REPORT. U.S. Environmental Protection Agency, Washington, D.C., EPA/540/R-95/519.
Description:
In August 1994, a demonstration of cone penetrometer-mounted sensor technologies took place to evaluate their effectiveness in sampling and analyzing the physical and chemical characteristics of subsurface soil at hazardous waste sites. he effectiveness of each technology was evaluated by comparing each technology's results to the results obtained using conventional reference methods technologies. he demonstration was developed under the Environmental Protection Agency's (EPA) Superfund Innovative Technology Evaluation Program. hree sizes were selected for the demonstration, each contained varying concentrations of coal tar waste and petroleum fuels, and wide ranges in soil texture. his demonstration found that the SCAPS, Geoprobe, and ROST technologies produce screening level data. pecifically, the qualitative assessment showed that the stratigraphic and chemical cross sections (SCAPS and ROST only) were comparable to the total petroleum hydrocarbons and volatile petroleum hydrocarbons data. imited correlation was measured between the ROST data and polynuclear aromatic hydrocarbon concentrations. n both cases, the demonstration did not identify a consistent relationship between the fluorescence data and the reference method data. ncreases in contaminant concentrations were not always followed by increases in measured fluorescence.