Section 17.16.060 Inspection - Replacement - Requirements - Cost.

    1. In all cases falling within the provision of Section 17.16.040, the removal of pavement and refilling of all trenches shall be done in the presence of a representative of the public works department, and according to the rules and regulations relative thereto.  The cost of such inspection of the backfilling of all trenches is covered by the permit fee, but the cost of replacing the pavement by the city shall be paid for on demand by the holder of the permit under which the work was done.  No trench shall be backfilled except in the presence of, and under the direction of, a representative of the public works department.  In order to obtain inspection for the backfilling of the ditch, twelve hours notice must be given to the office of the public service director, orally, by telephone, or in writing as to the time when the trench will be ready for backfilling.  Inspectors will be available each working day from eight a.m. to four-thirty p.m. The  public works director shall determine additional fees to be charged for inspections made before or after said working hours, or on Saturday, Sunday or holidays, which fees shall fairly reflect the current cost of labor;
    2. In all cases excavations within the right-of-way or easement must be backfilled immediately following acceptance of materials and workmanship by the city inspector.
    3. For a depth of two feet over the top of the sewer, basin connections, house connections and other drains or pipes, the material used for backfilling shall be clean earth.  In the case of pipe sewers or other pipes, the space between the pipe and the bottom and sides of the trench shall be packed full with hand tools and thoroughly tamped with a light tamper, as fast as possible, up to the level of the top of the pipe.  The filling shall be carried up evenly on both sides.  The material shall be deposited carefully in the trench to avoid damage to the pipe or service, and shall be placed in layers of not more than six inches in thickness and each layer shall be solidly and carefully tamped with pneumatic tamper or by hand tamping so as to eliminate lateral displacement or damage to pipe or joints.
    4. The remainder of the trench, above an elevation of two feet above the crown of the sewer, shall be done with   approved tampers in a manner consistent with approved industry standards or as specified in the city Standard Specifications Manual.
    5. In refilling around manholes and catch basins, the earth shall be deposited in six-inch layers and thoroughly tamped with approved tampers in layers not more than six inches in thickness.
    6. When the trench is filled, the contractor shall remove all surplus material, leaving the street clean and in good order.  If so directed by the city   engineer or public works   director, the surplus material shall be spread over the street.  The contractor shall not dispose of it until this matter is determined.
    7. If there is not sufficient material to refill the trench, the contractor shall furnish the additional material required, at his own expense.
    8. If the material excavated consists of rock or other material not suitable for refilling, the contractor shall furnish suitable material at his own expense and dispose of the unsuitable materials.  All material used for backfill shall be free from frozen material, rocks, foreign material that may decompose, and other material that may injure the pipe or affect the stability of the backfill.  (Ord. 2006-0836, S-33667, 1977).