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Multiple Objective Optimized Design of a Groundwater Extraction Network

Probabilistic Approaches to Groundwater Modeling Symposium at World Environmental and Water Resources Congress 2003, , , 2003


Status: Published

Citations:

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Abstract: Groundwater remediation projects involve multiple stakeholders. The design of aquifer remediation systems, which allocates resources to accomplish remediation objectives, should therefore accommodate the existence of multiple, often conflicting objectives. Several optimization methods have been devised or applied to the problem of multiple objectives. This paper discusses an intuitively appealing method that combines archived simulation results and data mining. It is used to plan an augmentation to an operating groundwater extraction network to accelerate the removal of dissolved TCE and PCE by extraction wells. Solutions were sought for multiple goals that focused on mass or concentration values at specific times along property lines, within specific aquifer zones, and/or at selected wells. Based primarily on the optimization results, along with comments from regulatory agencies and other parties, new well locations and pumping rates were used to modify the existing 5-year old groundwater extraction network so that the clean-up time for achieving MCLs would be reduced by 50%.



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