November 2015, Vol. 242, No. 11
Features
GPR, EM Technologies Offer Rewards in Environmental Assessments
Geophysical surveys can be the bedrock – pardon the pun – of environmental projects, from locating abandoned underground storage tanks (USTs) and utilities, to complex mapping of geology in remedial investigations and finding landfill boundaries and other buried unknown problems. In the past few decades, a variety of nondestructive testing methods have gained in popularity over expensive and time-consuming drilling and digging for environmental projects. Among these, the method of pairing ground penetrating radar (GPR) with electromagnetic (EM) induction instruments is one that shows great promise in significantly reducing survey time and costs. Geophysical Toolbox In the pas

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