1887

Abstract

Magnetic and electromagnetic techniques were used in the investigation of three landfill sites.<br>Historical records of the content and location of buried waste in all three landfills were poor.<br>The geophysical surveys were conducted to map the trenched areas or locate buried drums and<br>other metal objects within the landfill. Waste filled trenches exhibit a higher conductivity than<br>the surrounding undisturbed materials. Drum burial areas have a higher apparent conductivity<br>and also produce significant magnetic anomalies.<br>These geophysical surveys provided accurate locations of the trenches and drum caches in all<br>three cases. When used together, the magnetic and electromagnetic data could be used to<br>differentiate between ferrous and non-ferrous metallic waste. Modern equipment measures and<br>logs EM and magnetic data efficiently, allowing surveys to have high spatial density. This<br>increase in data density provides more precise delineation of trenched areas and more accurate<br>location of buried objects such as drums. The increased efficiency of the modern instruments,<br>computers, and techniques enables the user to complete high quality surveys in hours or days and<br>present the environmental investigator with understandable maps in the field.

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/content/papers/10.3997/2214-4609-pdb.203.1998_047
1998-03-22
2020-05-31
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http://instance.metastore.ingenta.com/content/papers/10.3997/2214-4609-pdb.203.1998_047
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