It is unlawful for any person to injure, destroy, deface, or disturb any portion of the waterworks system, to interfere with or obstruct the water supply, or to tamper with or turn a water valve for the purpose of turning on water service which has previously been disconnected, without permission of the City. Further, it is unlawful to make use of water which is provided through a shut-off valve which has been turned on without permission of the City. It is unlawful to interfere with normal distribution system pressures, to impede, obstruct, or otherwise cause any potential hazards to the water system.