Coastal and Inland Energy

El Paso / Coscol Marine Oil Terminal Deconstruction Project

Location: North San Francisco Bay, California
Project Description
The former Pacific Refinery located alongside San Pablo Bay in the city of Hercules, California was supported by a marine oil terminal (MOT) constructed in 1966 to support the loading and offloading of tankers. The MOT facility was comprised of several reinforced concrete wharf structures founded on concrete pile, wood piling dolphins, several submarine pipelines, and a shore landing. L123 client, a marine construction contractor, was awarded the contract to decommission this facility in accordance with strict environmental agency permit conditions and requirements. This project required the employment of four individual derrick barge-based marine personnel and equipment spreads to complete the work on time and within the environmental parameters. L123 developed the Contractor Work Plan and worked with the client to develop all operational and supporting plans.
 
Relevance
This project demonstrates L123’s experience with marine construction and decommissioning planning and operations in a difficult environmental permitting setting.

Oil/Gas Decommissioning Project

Location: Long Beach, California
Project Description
This project involved the decommissioning of an oil and gas production island located offshore of Seal Beach and Belmont Shores, California. This concrete, wood and steel island was the oldest offshore production facility in the United States. A total of approximately 5,437 tons of concrete was removed, 1,455 tons of steel, 8,000 tons of rock, 2,775 tons of sand, 93 tons of painted concrete, 40 tons of grout and other materials.
 
Relevance
L123 developed the project’s feasibility study, project execution plan, contractor work plan, engineering and graphics that served as the basis for the project’s environmental permits. The decommissioning work included concrete saw cutting, diamond wire cutting, abrasive grit cutting, heavy lift rigging, and concrete disposal. Of the total volume of materials removed in this decommissioning, 96% was recycled and only 4% was disposed into landfill.

Power Station OTC Plugging Design and Planning

Location: El Segundo, California
Project Description
L123 has planned and managed all decommissioning technical aspects of this ongoing turnkey project, including technical studies, all site characterization surveys and inspections, engineering and design, and production of the PEP.
 
Relevance
This project demonstrates L123’s experience with marine construction and decommissioning planning and operations in a difficult environmental permitting setting.