Pursuant to § 7-725-a, Subdivision 5, of the Village Law, the Planning Board may waive, when reasonable, any requirements for the approval, approval with modifications or disapproval of site plans submitted for approval. Any such waiver shall be subject to appropriate conditions of the Planning Board which it may find to be reasonably necessary and where the Board concludes that any such requirements are not to be required in the interest of the public health, safety or general welfare or inappropriate to a particular site plan.