Said bond shall remain in full force and effect until released or until the original amount thereof is reduced by the Town Board upon issuance of a certificate of completion or of partial completion by the Town Engineer, certifying that all provisions of this article and conditions of the permit have been fully complied with. Application for such certificate shall be made by the permittee, owner, lessee or his agent on forms to be furnished by the Town Engineer and shall be accompanied by a map drawn to a scale showing the affected property, giving elevations thereof at ten-foot intervals, prepared by a duly licensed engineer or land surveyor of the State of New York after the completion of the operations, who shall also certify as to the amount of topsoil remaining upon ground required to be spread with topsoil and that such area has been seeded in compliance with this article and that the other conditions of the approved plan of rehabilitation have been fulfilled.