DREDGING: Only technique that directly removes accumulated sediment from lake systems
But there are
*environmental concerns�
*expensive
*problems concerning Disposal site: removed sediment
*Aesthetic impact

A dam necessary for the removal of the nutrient rich water.
While these techniques could be cheap and viable if dam is already in place, 3MP does not have a dam.
And Even if a dam were constructed �
The high nutrient water would be Discharged into WEBBER

Therefore, we have concluded that these water removal techniques are not feasible for 3MP.