The estimated costs of measures required to control soil erosion and sedimentation, as specified in the certified plan, that are a condition of certification of any modified site plan, if such a modified site plan is submitted for review by the Commission, may be required to be covered in a performance bond or other assurance acceptable to the Commission in accordance with the provisions specified in the appropriate sections of the Zoning Regulations of the Borough of Newtown and the Subdivision Regulations of the Town of Newtown, as from time to time amended.