| Final environmental impact statement addressing the Port Dolphin LLC deepwater port license application - :6313 | National Environmental Policy Act (NEPA)
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Final environmental impact statement addressing the Port Dolphin LLC deepwater port license application
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Final environmental impact statement addressing the Port Dolphin LLC deepwater port license application
  • Corporate Authors:
    Engineering-Environmental Management, Inc ; United States, Coast Guard., Deepwater Ports Standards Division, ; United States, Maritime Administration, ; ... More ▼
  • Description:
    Appendices: Volume II. Appendix A (Scoping outreach) -- Appendix B (Review of the draft environmental impact statement) -- Volume III. Appendix C (Agency consultation) -- Appendix D (Principal laws and executive orders) -- Appendix E (Biological assessment) -- Appendix F (Detailed maps) -- Appendix G (Ichthyoplankton assessment) -- Appendix H (Essential fish habitat assessment) -- Appendix I (Unanticipated discovery plan for cultural artifacts and human remains) -- Appendix J (Independent risk assessment) -- Appendix K (LNG incident summary).

    Port Dolphin Energy LLC, proposes to own, construct, and operate a deepwater port, named Port Dolphin, in the Federal waters of the Outer Continental Shelf in lease blocks designated by the Minerals Management Service as St. Petersburg (PB) blocks: PB545, PB546, PB547, PB548, PB504, PB505, PB506, PB507, PB463, and PB589. These blocks are approximately 28 miles off the western coast of Florida to the southwest of Tampa Bay, in a water depth of approximately 100 feet. Port Dolphin would consist of a permanently moored unloading buoy system with two submersible buoys separated by a distance of approximately 3 miles. The buoys would be designed to moor a specialized type of liquefied natural gas (LNG) vessel called a Shuttle and Regasification Vessel (SRV). The Applicant would plan to use two classes of SRVs, either 145,000- or 217,000-cubic-meter capacity. When the SRVs are not present, the buoys would be submerged on a special landing pad on the seabed, 60 to 70 feet below the sea surface. SRVs are equipped to vaporize cryogenic LNG cargo to natural gas through an onboard closed-loop vaporization system, and to meter gas for send-out by means of the unloading buoy to a 36-inch flowline to a Y-intersection, and then to a 36-inch pipeline approximately 42 miles in length that would connect onshore in Manatee County, Florida, with the Gulfstream Natural Gas System, LLC, and Tampa Electric Company (TECO) Bayside pipeline. Only SRVs would call on Port Dolphin. Initially, Port Dolphin would be capable of a natural gas throughput of 400 million standard cubic feet per day (MMscfd) and would eventually be capable of an average of 800 MMscfd with a peak capacity of 1,200 MMscfd. Construction of Port Dolphin would be expected to take 11 months. Port Dolphin deepwater port would be designed, constructed, and operated in accordance with applicable codes and standards and would have an expected operating life of approximately 25 years.

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