In an effort to keep pace with the need for cost effective technologies, USA employs state-of-the-art technology and approaches to all our project sites. We use a formal and proven review process that identifies, analyzes, and tests proposed innovative solutions for safety, field-worthiness, and effectiveness. The following paragraphs highlight some of these innovative technologies.
Current clean-up methods cannot discriminate between scrap metal and hazardous MEC; as a result, contractors must dig up hundreds of thousands of metal objects in order to identify and remove just a few pieces of MEC. This process is labor-intensive and very expensive. There is no known estimated cost to clean up MEC on known DoD sites. However, Deputy Under Secretary of Defense for Installations and Environment, Dr. Dorothy Robyn, has noted that technologies using Advanced Classification (AC) sensor technologies that can discriminate between MEC and harmless metal objects can reduce DoD’s projected cost for MEC cleanup by 75 percent. USA is experienced in collecting AC data with Time-domain Electromagnetic Multi-sensor Towed Array Detection System (TEMTADS) 2 x 2 x 3 AC sensor, and trained to process and analyze AC data using Geosoft’s UX_Analyze.
USA has been a leader in integrating DGPS and RTK DGPS equipment into the MEC remediation process. We use this equipment to perform project site surveys, to divide sites into manageable work grids, and to record the location of individual MEC items.
For the Engineering Evaluation/Cost Analysis (EE/CA) project at the Waikoloa Maneuver Area, HI, USA evaluated the multigate EM basalt discrimination developed for the EM63 in support of the EM61 MK2 Waikoloa Phase III Geophysical Prove-Out, reliably detecting all near-surface seed items.
Examples of our use of state-of-the-art technol¬ogy includes the multi-sensor, towed-array sys¬tem that simultaneously collects both magnetometer and electromagnetic sensor data via VSEMS.
USA, working with Science Applications International Corporation, developed, demonstrated, and deploys this system. USA has worked with this system on eight projects and has found it exceptionally efficient on large-area surveys. USA has also developed a custom EM61-MK2A towed Array that can be packed and shipped worldwide by FedEx, and uses a locally available tow vehicle.
Range Master, an armored, remote controlled excavator, with integrated power screen was developed and demonstrated for Environmental Security Technology Certification Program. Range Master is designed to remotely and safely clear MEC, buried down to 18 inches, from heavily contaminated target impact areas.
Another example of our use of advanced technology is the TAZ I” system. TAZ II is armored, tracked-vehicular heavy equipment with an articulating arm to cut vegetation, including on steep slopes. The TAZ II proved invaluable on our $29.4M/4-year Fort Ord project, where it replaced the majority of our manual labor associated with steep slope brush-cutting, thus reducing time and cost and eliminating hazardous work conditions.
TEMTADS Towed Array
Using AC data to produce polarizability curves to characterize the buried object.