The City Engineer, or his designee, shall have the right to enter upon the site of all improvements for the purpose of inspecting the same, and shall be furnished with samples of materials as he may require for tests to determine the acceptability of such materials. The subdivider shall pay to the City the actual cost for the inspection of the work at the prevailing wage rates and the cost of checking of the materials for all improvements during the entire period of construction. When the final map is presented to the City Council, the subdivider shall give evidence that he has deposited with the City a sum in the amount estimated by the City as being sufficient to cover the costs of such inspection and tests, and other engineering costs. If the amount so deposited exceeds the actual cost to the City, the subdivider shall be reimbursed for the balance remaining. If the actual cost exceeds the deposited amount, the City shall stop all construction until the subdivider shall deposit with the City treasurer the additional sums due as estimated by the City. All moneys paid to the City pursuant to this Section shall be held in escrow for inspections, tests and checking of the materials for improvements, and other engineering costs. (Ord. 89-2 § 2, 1989; Ord. 66 NS § 3.5, 1950; prior code § 20-21.)