Subsurface imaging of an abandoned solid waste landfill site in Norman, Oklahoma

Ground Water Monitoring and Remediation
By: , and 

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Abstract

Leachate plume emanating from an old unlined municipal landfill site near the city of Norman, Oklahoma, is discharging into the underlying alluvial aquifer. Subsurface imaging techniques, electrical resistivity tomography and electrical conductivity (EC) logging, were used on the site to detect and map the position of the leachate plume. Anomalous EC zones, delineated with the two methods, correlated with the occurrence of the plume detected by water chemistry analyses from multilevel monitoring wells. Specific conductance, a potential indicator of leachate contamination, ranged from 1861 to 7710 μS/cm in contaminated zones and from 465 to 2180 μS/cm in uncontaminated ground water. Results are in agreement with those from earlier studies that the leachate plume emerges from the landfill along preferential pathways. Additionally, there are indications that the leading edge of the plume has migrated, at least, 200 m away from the landfill in the direction of ground water flow.

Additional publication details

Publication type Article
Publication Subtype Journal Article
Title Subsurface imaging of an abandoned solid waste landfill site in Norman, Oklahoma
Series title Ground Water Monitoring and Remediation
DOI 10.1111/j.1745-6592.2006.00066.x
Volume 26
Issue 2
Year Published 2006
Language English
Publisher Wiley
Contributing office(s) Toxic Substances Hydrology Program
Description 8 p.
First page 62
Last page 69