The state Department of Water Resources is looking to replace the geologist on the team looking into what caused the Oroville Dam spillway to collapse.

In a letter to David Capka, director of the Division of Dam Safety and Inspections, DWR Project Manager Ted Craddock wrote the previously selected geologist for the team could no longer fulfill his role “due to issues that arose during the contracting process.” The letter was filed Tuesday with FERC.

DWR has proposed geologist Dr. Peter Dickson as the replacement.

Dickson is a global geotechnical practice leader with Stantec and vice president of MWH, Global Inc.,acquired by Stantec last year. He has been with MWH for 39 years and has 44 total years of experience, according to his resume included with the filing.

Dickson has worked on dams and hydroelectric projects in the U.S. and around the world.