Whenever the Council determines that a shortage of water threatens the city water supply, it may, by resolution, limit the times and hours during which city water may be used for sprinkling, air conditioning, irrigation, car washing and other specified uses. After publication of the resolution, or delivery to the affected premises, or three days after mailing the resolution to the affected customer, no person shall use or permit water to be used in violation of the restrictions imposed in the resolution. Any person who does so may be charged an excess use charge, as the Council may determine by resolution. Continued violation shall be cause for discontinuance of water service in accordance with the procedures specified for discontinuance of service for a leak found upon the customer's premises.
('82 Code, § 3.216)