Reynolds Metals / Bechtel Environmental / Metcalf Eddy use WINOPS on three clamshell rigs to remove PCB contaminated sediment from the St. Lawerence Seaway Massena, New York


WINOPS tracked and archived over 17,000 level cut calmshell buckets of contaminated sediment. This material was removed on site from Faust Corporation Derricks COMANCHE, RELIEF, and RYBA4SPOT. There were 5 different size Environmental Clamshell buckets on site provided by Cablearm Inc. Each bucket is represented by a separate color.

Never before has a database like this been attempted or obtained.





The entire contaminated area was sealed off with sheet pile prior to removal and capping of sediments. This was a difficult project to complete on time due to the threat of ice tearing out the containment wall. This remediation was completed on time with successful lab results on the remaining sediments.





The CableArm Clamshell collection with a shot of the staging area during a test of the Clamvision sensors inside each bucket.






Each derrick was fitted out with a special cable on the boom to connect WINOPS to Clamvision sensors. Bucket depth, distance off sediment surface and open/close status are processed in real time by WINOPS to assist precision contaminated sediment processing.





Bill Priore and Scott Blanchard of Metcalf Eddy prep the college students that were onboard each derrick to run Environmental Dredging Operations. Bill Priore, Faust's Steve Absher, Scott Blanchard and I worked together during the winter to put together a version of WINOPS to handle this project. This required several meetings at Faust headquarters in Detroit and Metcalf Eddy offices in Columbus Ohio.





Larry Alderman from Reynolds Metals with Bechtel's Jeff Cange and Ray Bergeron of CableArm...





Remediation Engineer Darrell Nicholas has been working on this project for 9 years. He was happy to see it happen.





This three rig project was demanding due to having many green hands working for the first time with offshore derricks. Mark Eeks the safety man kept all from getting hurt.





This project combined the use of Starlink submeter DGPS receivers for rig position with Novatel 20cm RTK DGPS for the bucket position.






A Novatel Base Station to transmit RTK corrections to each rig was set up on site to obtain 20cm positioning for the bucket. This was our first time using Novatel GPS products. They work well. 1 800 NOVATEL.







The derrick RYBA was the old Dunbar & Sullivan Clyde Steam derrick FOUR SPOT. It has been converted to diesel hydraulic. I was pleased to see such an old time rig still on the water.





Sunset on the St. Lawerence...




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