Well-Point Containment of Impoundment Leakage

摘要

Research was conducted to evaluate the effectiveness of a well-point dewateringsystem in conjunction with a french drain to intercept waste impooundment leakage while reducing the volume of wastewater requiring treatment. A well-point dewatering system composed of 585 production wells was installed around the perimeter of a leaking impoundment which previously used only a french drain system for leakage control. The placement of the well-point system was designed to intercept and remove the leakage from the groundwater before the contaminant reached the french drain. Groundwater monitoring at this site revealed that after a period of approximately 40 days the well-point dewatering system had stablized and effectively prevented the further spread of contamination to the french drain.