Annual report. Upon the issuance of a building permit for a wireless telecommunication tower site, the owner or operator of the site shall provide to the Township Engineer, Township Planner, and Township Zoning Officer, an initial report signed and sealed by a licensed professional engineer, certifying the estimated use and structural life of the tower, as well as providing an initial inventory of all equipment and antennas on the site. After 50% of the structural life is elapsed, annual recertification reports as to the structural integrity of the tower shall be required. An updated report shall also be provided whenever antennas are raised or modified and shall include a detailed listing of all antennas and equipment. All vendors and lessees shall also be required to notify the above Montague Township officials when the use of such antennas or equipment is discontinued. If any of the reports disclose that a condition of the tower presents an imminent hazard to the public health, safety or welfare, or that the tower, antennas or equipment are no longer in use, the owner shall, and the Township Engineer or Zoning Officer may order, in their discretion, the removal of the tower to protect the public health, safety and welfare. Wireless telecommunications towers and sites shall be maintained to ensure continued structural integrity. The owner of the tower shall also perform such other maintenance of the structure and of the site so as to ensure that it does not create a visual nuisance.