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Case Study 92: Core Sampling in UXO Contaminated Waterways
Real-time metal detection eliminates need for pre-coring survey. Client Needs: The client needed vibracore samples in an area known to contain UXO (unexploded ordnance). They were concerned about our electro-vibracore making contact with UXO. An EM survey could have been performed to provide markout pre-coring, however this approach has several drawbacks: • Increased time on the water for surveying and in the office for for post-processing the EM data; both leading to increased cost. • Variability in GPS accuracy during