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| Air Basin Quality Evaluation RJ Lee Group's (RJLG) air basin quality evaluation in Lewiston, ID, was among the most comprehensive air toxic research studies conducted in the Pacific Northwest. Our experts monitored PM10, trace metals, carbonyls, and VOC at five sites in Lewiston's urban and suburban areas and in Nez Perce Tribe territory. In addition, four towers equipped with meteorological monitors measured wind speed, wind direction, temperature, solar radiation, humidity and other meteorological parameters for the calendar year of 2006. RJLG partnered with the Nez Perce Tribe, Idaho Department of Environment Quality and Washington State University (Pullman WA) for this comprehensive, million-dollar study. Our experts were responsible for all chemical measurements, dispersion modeling (using EPA's CALPUFF model system), and equipment for sampling. The meteorological and chemical measurements are now being applied to understand air toxic levels and impact of meteorological conditions of Lewiston Valley on air toxic levels in the area. |
| Air Force EHM+DRC Project RJ Lee Group (RJLG) is currently developing the Engine Health Management Plus Data Repository Center (EHM+DRC) system for the United States Air Force (USAF) enabling Air Force program managers, engineers, and maintenance users to better manage engine health. The system will consist of a centralized data repository, engine health management plus tools, client-based data transfer mechanism and web-based knowledge management system to integrate, analyze and utilize USAF engine data in a more timely and effective manner. This system will collect and disseminate engine data from and to various systems and personnel at the O-Level, I-Level, and D-Level. At its core, the system contains a centralized data repository that holds engine data from multiple data sources for the selected fleet of USAF aircraft. |
| Air Monitoring During Demolition of 11-Story WTC Impacted Building RJ Lee Group (RJLG) conducted extensive community air monitoring during demolition of a mid-rise building near to the World Trade Center that was impacted by the events of September 11, 2001. Our experts developed a monitoring plan, approved by EPA Region 2, and implemented a Work Stop Criteria (10-6 Risk Basis). Direct read instruments were used to measure particulate matter and elemental mercury concentrations of the air at and around the site. Integrated air samples were obtained each day and analyzed for asbestos, metals, dust, and crystalline silica. Results were summarized and reported to EPA Region 2 on a weekly basis. |
| Analysis of Crayons for Asbestos When a leading manufacturer of crayons faced allegations charging their product contained asbestos, they contacted RJ Lee Group (RJLG). The samples were analyzed using scanning electron, transmission electron and optical microscopy. Our materials experts collaborated with international experts on appropriate identification of asbestos fiber and presented the resulting scientific data to disprove the frivolous accusations. The data provided assurances to the manufacturer, the public and the media of the safety of the crayons. |
| Analytical Support for Tunneling Projects in Serpentine Rock The 3.4-mile Claremont Tunnel near Berkley, CA, was seismically upgraded so that it will survive a major earthquake and allow the safe delivery of water after such an event. This six month tunneling project created a two mile-long tunnel in serpentine and other ultramafic rock. RJ Lee Group (RJLG) took part in the enlargement efforts by analyzing possible contamination in surrounding soil to ensure worker health and safety. RJLG provided daily rush analysis for asbestos, silica, dust, and heavy metals samples. In addition to analyzing samples for the assessment of worker health and safety, RJLG tested excavated rock and soil to determine proper disposal or on-site use. |
