Saturday 10 January 09 - 03:15
 

Diving & Underwater Services

SeaOtter Succeeds Despite the Freeze

American environmental services company Clean Harbors has successfully completed two more inspection projects using their SeaOtter ROV.
Clean Harbours successfully completed the inspection of a Connecticut power plant despite icy conditions.
Clean Harbours successfully completed the inspection of a Connecticut power plant despite icy conditions.

At the Mystic Power Station in Boston, the ROV 'swam' into intake lines in a holding pond to verify the line was clear of obstructions. The ROV was used because the pond could not be safely locked out, which meant it would be extremely dangerous for divers to enter. While on site the ROV also inspected seawater coolant intakes for debris build-up to help in planning a revised cleaning schedule.

On another job in nearby Connecticut, a hole was cut through six inches of ice covering a retention pond. The SeaOtter was deployed through the hole and inspected the freshwater feed and recirculation lines for sediment build-up. Both clients were pleased with the performance of the ROV and the service provided.

Clean Harbors is a leading environmental services provider and the largest waste disposal company in North America. Their services include emergency response and industrial maintenance. With a substantial increase in this part of their business over the last couple of years, the company decided an underwater camera would be a very useful tool to assist in the response and maintenance operations.

Marine operations director Scott Metzger was tasked with determining which of the many camera systems available would be best for their varied applications. After extensive research SeaOtter ROV was selected as the best tool to fit their needs and budget. The remote operated vehicle is equipped with a powerful four motor propulsion system, a high resolution color camera, and four 100 watt lights. The ROV is controlled by an operator on the surface who uses joysticks to manipulate the camera and 'drive' the vehicle to the underwater site.

After purchasing the SeaOtter, Mr. Metzger travelled from Clean Harbors' corporate headquarters in Norwell, Massachusetts to JW Fishers factory in East Taunton for some basic training in ROV operation. With a couple hours of instruction and a little pool time, he was ready to fly solo.

Before performing their first open water inspection, Clean Harbors decided to take the ROV to the Massachusetts Maritime Academy in Buzzards Bay and demonstrate the ROV’s capabilities for the media and public officials. The exercise was designed to highlight new services the company would be offering, which included port security. During the demonstration two cadet interns piloted the SeaOtter as part of their co-op program.

In an interview, Metzger said the advantages of having an ROV is not having to risk the life of a diver in dangerous situations and being able to instantaneously record images. He added that it’s also good for extended underwater operations. The ROV can stay underwater all day and all night with no concern about running out of air or decompression issues.

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