Home : Home : Warfare Centers : NUWC Keyport : Naval X : Surface Ship Radiated Noise Measurement
Surface Ship Radiated Noise Measurement (SSRNM)

Per the Council on Environmental Quality regulations implementing the procedural provisions of the National Environmental Policy Act of 1969 (NEPA), and the Department of the Navy (Navy) procedures for implementing NEPA, the Navy has prepared an Environmental Assessment (EA) and Finding of No Significant Impact (FONSI) for the proposed installation and operation of a Fixed Surface Ship Radiated Noise Measurement (SSRNM) system at the Fleet Test and Evaluation Center, Barbers Point O‘ahu, Hawai'i, and surrounding ocean. 

The proposed action is to upgrade and modernize existing Middle Pacific (MIDPAC) Surface Group SSRNM testing and operations.  The Preferred Alternative would include the installation and operation of a fixed SSRNM system, consisting of a hydrophone array, and undersea data transmission cable (trunk cable) in the ocean off the leeward coast of O’ahu, Hawai'i, and a shore station cable landing at Fleet Technical Evaluation Center, Barbers Point.  The hydrophone array would be located about 3.5 mi (5.6 km) offshore within an existing Navy operating area named the Fleet Operational Readiness Accuracy Check Site.