The inspection of sewer lines between the POTW sewer main and a building foundation shall be under the direction of the Director or by his duly authorized inspectors. The City shall be notified on a regular working day at least four (4) hours in advance of the time the permittee wants the inspection done. The entire length of the sewer lateral, including the junction at the POTW sewer shall be fully exposed. Any portion of the work not done in accordance with these requirements, the instructions of the POTW or its inspectors and the specifications of the City, shall be corrected promptly. There shall be no backfilling until the inspection is made and the work accepted. Work covered prior to inspection shall be uncovered to permit inspection.