Marine Transition 2018

Drills test new response equipment and personnel

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Exercises required for marine transition

A series of drills and exercises, including one large no-notice drill, helped assess the new system in Prince William Sound.

Throughout the past year, Alyeska conducted a series of exercises designed to meet requirements from the Alaska Department of Environmental Conservation and train the crews aboard Edison Chouest Offshore’s new vessels. Some exercises were conducted during windy conditions and others during darkness.

Photo of crews practicing oil spill response at night.
The Council believes safely incorporating realistic challenges into drills and exercises increases safety during a real response. This photo from a July 2018 exercise shows how response crews practice deploying oil spill boom at night.

In June, the department approved major amendments to the oil spill contingency plans for the Valdez Marine Terminal and the tankers that transport oil through Prince William Sound. These amendments stemmed from the change of spill prevention and response contractors to Edison Chouest Offshore, who took over from Crowley Maritime last July. The approval came with conditions, which required specific exercises and training for the new equipment and personnel.

The department required each of the five escort tugs, the four general purpose tugs, and the Ross Chouest utility tug to conduct exercises with oil spill response barges. In addition, the department specified that some of these exercises had to occur in winds of at least 20 knots (23 miles per hour) and in darkness.

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Oil spill prevention and response services transition to new contractor

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Link to more photos of new equipment
More photos of new equipment.

Prince William Sound was a hive of activity this summer. On July 1, Alyeska’s marine services contractor transitioned from Crowley Maritime Corporation to Edison Chouest Offshore.

This transition means all of the escort tugs and much of the spill prevention and response equipment in Prince William Sound are brand new, or new to the Sound.

Demonstrations of the new equipment

The Alaska Department of Environmental Conservation required that each vessel and crew member demonstrate their capabilities before beginning service. Each tug, as well as each tug’s captain, had to perform a set of maneuvers which differed according to the vessel and its purpose.

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Changes to oil spill contingency plans approved

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Extensive amendments due to transition

Photo of oil spill contingency plans with the caption: What is a contingency plan? A contingency plan, or “c-plan,” outlines steps to be taken before, during, and after an emergency. An oil spill contingency plan contains detailed information on how to prevent an oil spill, as well as response activities in the event a spill occurs. Preventing an oil spill from occurring in the first place is the most effective way to protect human health and the environment. If an oil spill occurs, however, a systematic and well-organized approach is necessary to quickly contain and control a spill. Responding efficiently and effectively to a spill requires advanced planning and preparedness.
What is a contingency plan?

The Alaska Department of Environmental Conservation recently approved major amendments to oil spill contingency plans for both the Valdez Marine Terminal and for the tankers that transport oil through Prince William Sound. Both approvals came with conditions.

Neither the tanker plan, nor the terminal plan was due for a renewal. However, Edison Chouest Offshore is bringing so much new equipment and personnel to their new role as Alyeska’s marine services contractor that major changes were needed to both plans. Major amendments require a public comment period.

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Schantz: Prevention and response improving, full capabilities not yet proven

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Donna Schantz

By Donna Schantz
Executive Director

The Council is pleased to say that the recent transition of prevention and response services to Edison Chouest Offshore will bring many improvements in Alyeska’s capabilities to protect Prince William Sound and its downstream communities. Alyeska and the Prince William Sound oil shippers are to be commended for their significant investment and commitment in the new vessels, equipment, and crews.

Details provided by Alyeska show that the new vessels, built specifically for Prince William Sound, will have new technologies to improve safety for the crews and boost spill prevention and response capabilities. A few notable examples include:

  • The new render-recover winches which the Council has been promoting for years
  • Response barges with decks specifically designed to deploy and retrieve oil skimming equipment, maximizing safety for crews

We recognize and appreciate the details about the safety enhancements we have seen so far.

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