Prior to approval of any application, the Planning Board, at its sole discretion, may require the applicant and/or the owner to establish a maintenance and/or escrow account in an amount sufficient to cover the technical review, installation, maintenance, construction and removal of the proposed telecommunications tower or antenna during its lifetime. The amount required shall be determined at the sole discretion of the Board, based upon the unique characteristics of the tower (or antenna) and the site. The applicant and/or owner shall cooperate with the Board in supplying all necessary construction and maintenance data to the Board prior to approval of any application. Cost estimates may be reviewed by the Town Consulting Engineer at the Planning Board's discretion.