All public improvements made under the provisions of this chapter shall be constructed under the supervision of the city engineer. The inspecting engineer may be one of the city staff or a consultant of the firm preparing the plans for the project. Written reports shall be submitted to the director of public works, indicating the date of inspection, items inspected, and location of such inspections. These reports shall be made in sufficient number to ensure the proper construction of all facilities. A core drilling of all streets by a qualified testing company under the direction of the public works director shall be required, prior to the acceptance of the streets or utilities being turned on. All fees for such inspection and in reviewing such plans and specifications for improvements shall be paid for by the subdivider. (Ord. 2013-20)