Analysis of Remediation Alternatives for the Pacific Crossing-1 North and East Submarine Fiber Optic Cables in the Olympic Coast National Marine Sanctuary

摘要

This Environmental Assessment evaluates alternatives for addressing the existing burial condition of a trans-Pacific fiber optic cable traversing the Olympic Coast National Marine Sanctuary. The cable was laid in 1999-2000. Segments of the cable are not sufficiently buried, and the proposed action is to address this condition (cable remediation). The Olympic Coast National Marine Sanctuary (OCNMS) is a federally designated area of special national significance, recognized for its rich natural resources and human resource values. Site-specific regulations for OCNMS prohibit drilling into, dredging or otherwise altering the seabed of the sanctuary; or constructing, placing or abandoning any structure, material or other matter on the seabed. Submarine cable installation involves substantial seafloor disturbance, and therefore the National Oceanic and Atmospheric Administrations (NOAA) National Marine Sanctuary Program (NMSP) determined a Special Use Permit and authorization were required.