| Title: 1,500,000 Ton CCB Reuse Success 18-Hole Golf Course Project – N.E. United States |
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| Steven Putrich | | URS Corporation |
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| Source: Proceedings of the 15th International American Coal Ash Association Symposium on Management & Use of Coal Combustion Products |
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| Publisher: Electric Power Research Institute, Inc. (EPRI) |
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| Date: January 2003
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| Full Paper Instructions: For more information visit www.acaa-usa.org or e-mail info@acaa-usa.org. |
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| Abstract: This article presents an overview of findings from a recently completed confidential engineering evaluation for a 1,500,000-ton coal combustion byproduct (CCB) beneficial reuse project located in the Northeast United States. The project involves permitting and construction of a new 200-acre, 18-hole golf course located adjacent to an existing residential development. Residents in that development are utilizing shallow potable wells located immediately downgradient of the site. The objectives of this study included evaluation of the potential impacts to groundwater associated with leachable metals from amended ash to be used in construction of the golf course fill. The engineering evaluation included: implementing hydrogeologic investigations to characterize existing subsurface conditions; developing a customized contaminant fate and transport model to predict concentrations of ash-related metals in groundwater at the property boundaries; and evaluating exposure and potential risk to human health associated with future site groundwater use. Results of these evaluations indicated that all total predicted exposure point concentrations of metals in groundwater were below current drinking water standards. This included arsenic at the newly proposed drinking water standard of 10 ug/l. Comprehensive reagent pre-screening and laboratory ash stabilization testing were conducted in support of this project. This testing program facilitated selection of the optimal reagent dosage while providing adequate protection for site groundwater. As a result of the findings from this study, the client received EPA approval to proceed and authorized the golf course project. Using the recommended target reagent dosages of 1.5 to 2.0% (in lieu of earlier plans for using 3% to 5% reagent), project costs were reduced by $500,000. Construction of the golf course project began in April 2002. |
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| Reprinted with permission from the American Coal Ash Association. |
