Tidewater Atlantic Research, Inc.
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Target Identification & Assessment
Target reconnaissance surveys are designed to provide a thorough assessment of magnetic and/or acoustic anomalies identified as representing potentially significant cultural resources. The nature and intensity of that research is determined by the potential for archaeological resources, the historical significance of the project area and the nature and extent of proposed project activities. Data collected during field operations is used to identify and assess the historical and archaeological significance of a site and support a determination of eligibility for the National Register of Historic Places. Information generated is also utilized to support the development of a comprehensive plan for mitigation and/or recovery should avoidance of the resource not be possible.

Diving activities conducted by TAR researchers adhere strictly to OSHA, U. S. Navy and U. S. Army Corps of Engineers standards for diving operations. All diving personnel are certified by a nationally recognized training organization and are experienced in both SCUBA and surface supplied systems. Underwater reconnaissance and site testing activities are conducted from vessels suitable for supporting diving operations in a variety of environments (e.g. rivers, sounds, inlets, ocean) and are equipped with all required safety features, first aid supplies, EPIRB and VHF communications equipment.

Tar personnel employ a wide range of equipment during testing Potentially significant targets are relocated by side scan sonar and towed and/or hand-held magnetometers. Once relocated, material is exposed by hand probing, hydro probes and where necessary, limited excavation by water induction dredges. Once exposed, cultural material is mapped in situ using triangulation, photography and/or video. Documentation is carried out in accordance with standards for archaeological techniques and where a resource is determined to be potentially significant assessment options will address appropriate criteria for National Register eligibility according to guidelines prepared by the National Park Service and the National Register of Historic Places (36 CFR 60).

Hand-held magnetometers are used to acurately pinpoint the location of magnetic anomalies.
Tethered scuba equipped diver preparing to identify and assess a target.