Superfund Innovative Technology Evaluation (SITE)
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Measurement Technologies for Total Petroleum Hydrocarbons in Soil siteLAB®
Corporation siteLAB® Analytical Test Kit
siteLAB® Analytical Test Kit UVF-3100A (UVF-3100A) developed by siteLAB® Corporation (siteLAB®) was demonstrated under the U.S. Environmental Protection Agency Superfund Innovative Technology Evaluation Program in June 2000 at the Navy Base Ventura County site in Port Hueneme, California. The purpose of the demonstration was to collect reliable performance and cost data for the UVF-3100A and six other field measurement devices for total petroleum hydrocarbons (TPH) in soil. In addition to assessing ease of device operation, the key objectives of the demonstration included determining the (1) method detection limit, (2) accuracy and precision, (3) effects of interferents and soil moisture content on TPH measurement, (4) sample throughput, and (5) TPH measurement costs for each device. The demonstration involved analysis of both performance evaluation samples and environmental samples collected in five areas contaminated with gasoline, diesel, lubricating oil, or other petroleum products. The performance and cost results for a given field measurement device were compared to those for an off-site laboratory reference method, “Test Methods for Evaluating Solid Waste” (SW-846) Method 8015B (modified). During the demonstration, siteLAB® required 37 hours, 20 minutes, for TPH measurement of 199 samples and 13 extract duplicates. The TPH measurement costs were estimated to be $7,090 for siteLAB®’s UVF-3100A rental option; $7,720 for the UVF-3100A on-site testing support service option; and $17,670 for the UVF-3100A purchase option compared to $42,500 for the reference method. The method detection limits were determined to be 3.4 and 6.32 milligrams per kilogram for the UVF-3100A and reference method, respectively. During the demonstration, the UVF-3100A exhibited good accuracy and precision, ease of use, and lack of sensitivity to interferents that are not petroleum hydrocarbons (neat materials, including tetrachloroethene; turpentine; and 1,2,4-trichlorobenzene and soil spiked with humic acid). However, the device showed less than 5 percent response to neat materials (methyl-tert-butyl ether and Stoddard solvent) that are petroleum hydrocarbons. In addition, it exhibited minor sensitivity to soil moisture content during TPH measurement of weathered gasoline soil samples. Despite some of the limitations observed during the demonstration, the demonstration findings collectively indicated that the UVF-3100A is a reliable field measurement device for TPH in soil.