Geophysical Mapping: Problem Details Problem Name: Characteristics of hazardous waste Problem Type: Hazardous Waste Assigned Methods: + Airborne magnetics Magnetic Methods + Fluid logging, Flow meter Borehole Methods + Frequency-domain electromagnetics - Profiling Electromagnetic Methods + Geoelectrics - Crosshole tomography Electrical Methods + Ground penetrating radar - Borehole tomography Electromagnetic Methods + Refraction seismic tomography (surface-based) Seismic Techniques + Seismic crosshole tomography Seismic Techniques + VLF / VLF-R, Radiomagnetotellurics Electromagnetic Methods + Vertical seismic profiling (VSP) Seismic Techniques 0 Acoustic logging Borehole Methods 0 Borehole imaging, Structure logging Borehole Methods 0 DC geoelectrics - Profiling Electrical Methods 0 Electrical and induction logging Borehole Methods 0 Frequency-domain electromagnetics - Sounding Electromagnetic Methods 0 Geoelectrics - Tomography (surface based) Electrical Methods 0 Ground penetrating radar (surface-based) Electromagnetic Methods 0 Induced polarization - Profiling Electrical Methods 0 Induced polarization - Tomography (surface-based) Electrical Methods 0 Seismic surface waves methods Seismic Techniques 0 Standard refraction seismics Seismic Techniques 0 Time-domain electromagnetics - Profiling Electromagnetic Methods 0 Time-domain electromagnetics - Sounding Electromagnetic Methods US Ground magnetics Magnetic Methods    '+' = Technique applicable; '0' = Application possible/limited use; 'US' = Ultra-Sonic (different equipment)