Coastal Magnet has conducted and overseen thousands of miles of geophysical surveys including bathymetric, side-scan sonar, seismic, and magnetometer surveys. We have sampled and overseen the collection of hundreds of vibracores and jet probes, underwater sediment sampling by divers, and bottom sediment sampling by barge-mounted clamshells. Our key personnel have reviewed geological and geotechnical data to rank borrow areas, determined available quantities, and characterized the compatibility of borrow material composition, grain size and color to native material. These services are often utilized by Coastal Magnet in support of comprehensive project services to provide probable opinion of construction costs and to verify proper construction upon project completion.