415 ILCS 45/4
Current through Public Act 103-593
"Water Supply Operator" means any individual trained in the treatment or distribution of water who has practical working knowledge of the chemical, biological, and physical sciences essential to the practical mechanics of water treatment or distribution and who is capable of conducting and maintaining the water treatment or distribution processes in a manner which will provide safe, potable water for human consumption.
415 ILCS 45/4