Drinking water facilities shall be installed and maintained so as to provide fresh and pure drinking water. When ice is used for water cooling purposes, the containers shall be so arranged that the drinking water will not come in contact with the ice. Containers used for storing or dispensing potable water shall be kept clean at all times and shall be subjected to effective bactericidal treatment as often as may be necessary to prevent the contamination of the water so stored and dispensed.
Okla. Stat. tit. 66, § 261