<P>60The Military Engineer L January-February L 2010 result of the historical use of the site, from excavation waste; and s bene?cial reuse of ?ll and other ma- terials needed for preparation and site improvements. Incremental Excavation. The excava- tion approach minimized waste gen- eration by conducting incremental ex- cavation using 12-in lifts in areas where chemical contamination was present at shallow depths. Through this approach, waste generation was reduced by ap- proximately 31 percent compared to traditional dig-and-haul techniques, while the volume of hazardous waste disposed off site was reduced by an es- timated 19 percent. Comprehensive Sampling. A sam- pling plan was developed to meet the dual objectives of reducing the amount of hazardous and non-hazardous waste generated for off-site disposal and demonstrating compliance with CERCLA remedial goals for the site. By combining in-situ pre-excavation sam- pling, real-time ?eld screening meth- odologies concurrent with excavation activities and focused post-excavation veri?cation sampling efforts, the sam- pling was accomplished in a cost-effec- tive manner. Surgical Excavation. The distribution of contaminated soils across the site necessitated the removal of trees from portions of the site. However, the team minimized the number of trees affected through the use of surgical excavation techniques—in many cases, excavating by hand—around the roots of large or signi?cant trees. This approach saved an estimated 75 trees. Wood for Fuel. Despite the painstak- ing excavation approach, approximately 140 trees could not be saved. The proj- ect team leveraged the wood-for-fuel program at APG, as regulators approved this use for 130 of the trees. This had a two-fold bene?t: It minimized the gen- eration of solid waste disposed off site in land?lls, and produced the equiva- lent of the energy needed to heat and provide hot water for eight typical homes in the northeastern U.S. for one full year. Metal Segregation. The historical ac- tivities at the G-Street Salvage Yard re- sulted in a signi?cant amount of waste and scrap metal remaining at the site, mostly on the surface. The project team made a focused effort to segregate re- cyclable metals at the site concurrent with excavation activities. This action also had a two-fold bene?t, reducing the volume of solid waste shipped for off- site disposal and allowing for the reuse or recycling of the scrap metal af- ter the team coordinated with a tenant organization, the U.S. Army Research Laboratory, to tap into its existing recy- cling program. Approximately 15,000- lbs of aluminum was turned over for recycling. Bene?cial Reuse of On-Post Materi- als. The project team actively sought materials generated from on-post ac- tivities, providing for their bene?cial reuse and minimizing the need to im- port off-post materials for ?ll, site im- provements and site preparation. In total, almost 14,000-T of on-post ma- terial was bene?cially reused on site. Approximately 12,750-T of on-post soil suitable for back?ll was utilized to back?ll excavated areas, approximately 300-T of on-post clean CR-6 stone was utilized for site road improvements and approximately 825-T of sand removed from a temporary safety cover previ- ously installed on the site was reused for site grading and back?ll. Regulator Coordination These waste minimization techniques would not have been possible without close coordination by the project team with regulators. In fact, the entire project is a testament to the value of early and close stakeholder engagement, keep- ing regulators, the community and an oversight committee informed and in- volved throughout the project lifecycle. Although waste minimization was an important aspect of the project, the pri- mary goal was naturally the successful remediation of the site and meeting all CERCLA requirements. Consequently, the key components of the waste-mini- mization program required a high level of interaction with state and federal regulators, securing their approval and enabling them to feel con?dent that both human and environmental health goals would be met along with waste- minimization goals. Replicating Success Reducing the environmental impacts of operations—including remedial ac- tions—is becoming increasingly impor- tant at military installations throughout the country. The key components to replicating the success of the G-Street Salvage Yard remediation are: s early and close stakeholder engage- ment, speci?cally including regula- tors; s a commitment on the part of the en- tire project team, including the con- tractor, to performing work in the most sustainable manner possible; s an installation-wide approach for solutions for material reuse, both for the disposal of materials generated and the need for materials to restore the site; and s creativity and a willingness to forgo traditional, typical operations. John Wrobel is Contracting Of?cer Repre- sentative and Project Of?cer, Directorate of Public Works, Aberdeen Proving Ground; 410-436-4840, or john.wrobel@us.army.mil. Joseph P. Gross, M.SAME, is Project Manager, Weston Solutions Inc.; 410-612-5910, joseph. gross@westonsolutions.com. Reducing Waste Waste-minimization efforts dur- ing a Superfund site remediation at Aberdeen Providing Ground yielded signi?cant bene?ts: s</p> <UL><LI><a href="http://www.stallionpublishers.com/publication/286/rhbgvjbgb/1/Front-Cover/" >Front-Cover</a> <LI><a href="http://www.stallionpublishers.com/publication/286/rhbgvjbgb/2/Inside-Cover/" >Inside-Cover</a> <LI><a href="http://www.stallionpublishers.com/publication/286/rhbgvjbgb/3/Page-1/" >Page-1</a> <LI><a href="http://www.stallionpublishers.com/publication/286/rhbgvjbgb/4/Page-2/" >Page-2</a> <LI><a href="http://www.stallionpublishers.com/publication/286/rhbgvjbgb/5/Page-3/" >Page-3</a> <LI><a href="http://www.stallionpublishers.com/publication/286/rhbgvjbgb/6/Page-4/" >Page-4</a> <LI><a href="http://www.stallionpublishers.com/publication/286/rhbgvjbgb/7/Page-5/" >Page-5</a> <LI><a href="http://www.stallionpublishers.com/publication/286/rhbgvjbgb/8/Page-6/" >Page-6</a> <LI><a 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