AGS has the capabilities to determine both lateral and vertical extents of landfills. We offer a well-planned and cost effective geophysical survey design that includes data acquisition, post processing, and reporting. Varying geophysical methods can be applied in determining both lateral and vertical extents of landfills, and AGS has the ability to confidently determine and carry out an investigation designed to get the most out of your geophysical survey.
Standard Geophysical Methods for Landfill Delineation Projects:
- Electrical Resistivity: Electrical resistivity methods are useful for identifying both the lateral and vertical extents of landfills at sites where a measurable contrast between background soils and landfill material can be observed (this is often the case at most sites).
- Electromagnetics: Electromnetic Methods allow for rapid data collection, processing, and interpretation. This instrument measures the lateral variation in terrain conductivity, allowing AGS to accurately measure differences between native and non-native material within the subsurface. This process can be completed by using a single person portable system (EM31 Terrain Conductivity Meter) and is excellent for covering large areas in a short amount of time.
- Magnetics: Magnetic methods measures lateral variation in the intensity of the earth’s magnetic field. Detected anomalies in the earth’s magnetic field are often associated with the secondary magnetic fields produced by ferromagnetic material (e.g. tanks, drums, etc.), making it possible to determine zones that contain landfill debris. This method often only requires one person and allows for rapid data collection and processing.