EPA Performance- TPH Soil - Case Study
"The UVF-3100A exhibited the following desirable characteristics of a field TPH measurement device; (1) good accuracy, (2) good precision, (3) high sample throughput, (4) low measurement costs and (5) ease of use."
The U.S. Environmental Protection Agency conducted a performance study called "Field Measurement Technologies for Total Petroleum Hydrocarbons in Soil" by evaluating Sitelab and six other manufacturers through the Superfund Innovative Technology Evaluation (SITE) program. The project was directed by the Office of Research and Development`s National Exposure Research Laboratory in Las Vegas, Nevada. Tetra Tech, Inc. was contracted to manage this $800,000 project. See ENGINEERING AWARD for details.
During the final field demonstration, Sitelab tested over 200 samples using our UVF-3100A analyzer for both Gasoline Range Organics, Extended Diesel Range Organics and Total Petroleum Hydrocarbons (TPH as combined GRO and EDRO). Sitelab was the only developer who performed and reported TPH as well as GRO and EDRO separately, just like the reference laboratory.
Samples consisted of Performance Evaluation spiked soils, liquid interference samples and a variety of environmental samples from five different contaminated sites located throughout the United States. All samples were split and sent to a certified laboratory for confirmatory analysis using EPA Method 8015M.
Sitelab Soil Results vs. Lab Results
Performance evaluation samples spiked with gasoline, diesel fuel and interferences with acceptance limits:
- Performance Evaluation TPH Results for PE Soils
- Weathered Gasoline Spike Recovery TPH Results
- Diesel Fuel Spike Recovery TPH Results
- Weathered Gasoline Spike Recovery GRO Results
- Performance Evaluation Interferents for PE Liquids
- Environmental investigation samples collected from five different contaminated sites in the United States:
- Texas: US Air Force Base UST Site GRO Results
- California: US Navy Fuel Farm Site TPH Results
- California: US Navy NEX Gas Station Site TPH Results
- California: US Navy Site Phytoremediation DRO Results
- Indiana: Petroleum Tank Farm Site TPH Results
