All trenches caused by the construction of sewers, water mains, water service pipes, and in excavation around catch basins, manholes, inlets and other appurtenances which occur within the limits of existing or proposed pavements, sidewalks and curb and gutters shall be backfilled with trench backfill.
Trenches and excavations near or adjacent to proposed or existing pavements, sidewalks and curb and gutters shall be backfilled with trench backfill to an elevation equal to the intersection of a one to one slope line from the top of the pavement, sidewalks or curb edge, with a vertical line through the nearest edge of the trench or excavation.
Trench backfill shall consist of sand, pit run gravel or crushed stone and shall be compacted in place to ninety five percent (95%) of maximum density at optimum moisture as determined by the Standard Proctor Test. (Ord. 0-77-02, 2-7-1977)