All work on construction and extension shall be at the applicant sole cost and subject to inspection by and approval of the City, that such construction is in strict accord with the extensions, constructions, specifications, drawings, and plans; and all expenses incurred by the City, as a result of the extension, including, but not limited to, preliminary engineering, preparation of specifications, drawings, performance bonds, one (1) year maintenance bond, plans and inspection of construction, shall be paid by the applicant.