In this case, the primary purpose of the project is to remove the material from its present location with no predetermined placement location or use other than ensur­ing that it does not re-enter the dredging site.

В этом случае основной целью проекта является удаление грунта/ осадка с места его нахождения не в заранее определенное/отведенное место, а таким образом, чтобы перемещенный грунт не проникал обратно на драгируемый участок.

context to follow:
In practice, placement site selection is often an iterative process. It begins with a broad-brush initial evaluation of place­ment site options from which one or perhaps a few options are selected for more detailed evaluation. This process eventually leads to the identification of the environ­mentally preferred placement option. Once the environmentally preferable place­ment site is identified, it is compared with acceptability criteria as described in the following section on placement site evaluation.