Date
01 Jun 1988, 1:00 pm - 5:00 pm
Abstract
Water quality monitoring at Cedar Hil.ls Regional Landfill, in King County, Washington has indicated that shallow ground water perched in lodgement till has been impacted by solid waste disposal. A leachate mound to 50 feet in thickness was identified in the refuse which overlies the low permeability till. The leachate head over the till is sufficient to cause downward flow of leachate through the till to shallow ground water, and may contribute to water quality impacts at the site. Lowering the leachate head, therefore, may reduce the potential for impacts on water quality. A study was conducted to obtain estimates of the hydraulic properties of solid waste and to determine if lowering the leachate head using horizontal drains and vertical extraction wells is feasible. This paper discusses the findings of the investigation.
Department(s)
Civil, Architectural and Environmental Engineering
Meeting Name
2nd Conference of the International Conference on Case Histories in Geotechnical Engineering
Publisher
University of Missouri--Rolla
Document Version
Final Version
Rights
© 1988 University of Missouri--Rolla, All rights reserved.
Creative Commons Licensing
This work is licensed under a Creative Commons Attribution-Noncommercial-No Derivative Works 4.0 License.
Document Type
Article - Conference proceedings
File Type
text
Language
English
Recommended Citation
Mills, Denise E. and Cordell, Donald A., "Evaluation of Remedial In-waste Leachate Head Reduction" (1988). International Conference on Case Histories in Geotechnical Engineering. 8.
https://scholarsmine.mst.edu/icchge/2icchge/2icchge-session1/8
Evaluation of Remedial In-waste Leachate Head Reduction
Water quality monitoring at Cedar Hil.ls Regional Landfill, in King County, Washington has indicated that shallow ground water perched in lodgement till has been impacted by solid waste disposal. A leachate mound to 50 feet in thickness was identified in the refuse which overlies the low permeability till. The leachate head over the till is sufficient to cause downward flow of leachate through the till to shallow ground water, and may contribute to water quality impacts at the site. Lowering the leachate head, therefore, may reduce the potential for impacts on water quality. A study was conducted to obtain estimates of the hydraulic properties of solid waste and to determine if lowering the leachate head using horizontal drains and vertical extraction wells is feasible. This paper discusses the findings of the investigation.
