If any such connection or ordered side sewer repair is not made within the time provided, the city engineer of the city, or such other employee of the city as the city council may designate, is authorized and directed to cause such connection or side sewer repair to be made and to file a statement of the cost thereof with the city comptroller, and thereupon a warrant shall be issued under the direction of the city council and drawn on the sewer fund of the city for the payment of such cost. Such amount, together with a penalty of ten percent plus interest at the rate of eight percent per year upon the total amount of such cost and penalty, shall be assessed against the property, and shall become a lien thereon as provided by RCW 35.67.200. Such total amount, when collected, shall be paid into the sewer fund.