The city shall own and operate a water system serving designated areas within and without the corporate limits of the city and may purchase existing systems or construct new works as may be necessary to supply to the people within the areas an adequate and safe domestic water supply. The City Council shall designate the area within and without the corporate limits of the city which shall receive water service from the city water system. The city shall endeavor to supply safe, potable, continuous and sufficient water at proper pressure to all consumers at all times.
(`67 Code, § 4-6-2)