Should the water be turned on or off by any user, without authority from the city, the water may then be shut off at the main or the meter removed, at the discretion of the water superintendent. The charge for shutting the water off at the main or removal of the meter shall be the actual cost of the work plus ten percent overhead. All such charges shall be chargeable to the user of the water supplied, and water shall not again be furnished to such user until all charges are paid.