DEA Marine Services is providing hydrographic surveying and consulting services to the Port of Long Beach (POLB) to update bathymetry of the harbor suitable for POLB’s Harbor Sounding Program as well as to update the local Pilot database and provide data to NOAA for nautical charting.
DEA has a long history of providing hydrographic and land surveying services to the Walla Walla District, including several surveys on the Columbia, Snake, and Clearwater Rivers.
Since 2018, DEA Marine Services has provided hydrographic surveying and geoscientific consulting services as part of the Upper Columbia River Remedial Investigation and Feasibility Study.
DEA Inc.