40The Military Engineer l May-June l 2010 area. This solution would have cost approximately $11 mil- lion with excavation, disposal and transport costs, and would have produced high levels of emissions. By contrast, the green remediation soil treatment system was implemented at a cost of $5.9 million, a cost avoidance of more than $5 million. The green treatment system remediated more than 30,000-T of soil using dry particle separation and a wet gravity sepa- ration process to remove bullets and fragments using gold mining equipment. The contaminated soil was delivered by conveyor belt to a wet screening machine, where the soil was separated through sifting into various sizes. Inside the machine, the soil was sprayed with a high-pressure blast of water to break down the soil clods. Soil was then treated and reclaimed. More than 50 percent of the soil was cleaned and ready to be used in reforestation to re?ll a mountain. Nearly 300-T of lead, or approximately 25,205,000 individual rounds, were sifted out and reclaimed for recycling. Revenue generated by lead recycling was reinvested into restoration. The soil treatment system used a closed loop water system that ?ltered and recycled its own water, reducing demand and preventing the discharge of contaminated water. The system also boasted a stormwater collection component, which collected and directed stormwater into the closed loop system as process water. Upon completion of soil washing, the system treated the process water so it could be recycled for irrigation during natural resources restoration. An independent panel of judges comprising professionals from federal, state and Army organizations recommended the Oregon Army National Guard for the award. The Secre- tary of the Army Environmental Awards represent the highest honor in the ?eld of environmental science and sustainabil- ity conferred by the Army, and Camp Withycombe will go on to compete in the same category at the Secretary of Defense Environmental Awards later this year. (Contributed by U.S. Army Environmental Command) GSA Clears Way for Agencies to Meet Sustainability and Recovery Goals The General Services Administration (GSA) has cleared the way for federal agencies to easily obtain green products and services to ful?ll their goals under President Barack Obamas sustainability executive order and under the American Recov- ery and Reinvestment Act. E.O. 13514 calls on the federal government to lead by exam- ple in greening and modernizing our nations infrastructure. To help agencies meet these goals, GSA set energy service agreements with 18 companies to perform services, including energy audits, energy performance monitoring and imple- mentation of renewable energy solutions, that will promote sustainability across the federal government. The presidents sustainability executive order calls on fed- eral agencies to lead by example in environmental, energy and economic performance, said Nancy Sutley, Chair of the White House Council on Environmental Quality. Innovative programs like these energy service agreements from GSA will Sustainability News (cont.) www pondco.com 678.336.7740 Atlanta, GA Jacksonville, FL Architecture. Engineering. Planning.
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