921.06 USE OF LAND CONFLICTING WITH SEWER FACILITIES.
   No person shall grade or place fill on or adjacent to land under which public sewage works exist without receiving written permission to do so by the Engineer.
   No person shall place a structure upon any land under which public sewage works exist closer than ten (10) feet (3 m) horizontal distance from the nearest edge of the public sewage works or the distance shown on the actual easement if a distance is shown thereon.
   In the event that it becomes necessary to adjust, relocate or otherwise modify the existing sewer system, including appurtenances, due to construction or grading; the Engineer may grant written permission to the owner to engage a licensed sewer installer to make the adjustments the Engineer deems necessary, at no cost to the City.
   The owner shall post a bond in the amount determined by the Engineer as a guarantee that damage shall not occur to the public sewage works as a result of the grading, filling or construction and as a guarantee that the necessary adjustment, relocation or modifications shall be completed to the satisfaction of the Engineer. All work shall be done by a licensed sewer installer.