It is unlawful for any person to use water from the city water system unless permission has been first obtained in writing from the city water department. Applications for permits to connect to the city water system or requests to turn water on or off at any premises shall be made in writing, and signed by the owner or authorized agent of the real property to be served. The applicant, as a condition precedent to water service, agrees to conform to all city titles and regulations concerning the use of water.