The Most Common Mistakes People Make With What is considered wastewater?

https://rylansryw825.wordpress.com/2019/08/02/13-things-about-water-and-waste-management-you-may-not-have-known/

Wastewater refers to all effluent (= sewage or liquid waste that is discharged into water bodies either from direct sources or from treatment plants) from household, commercial establishments and institutions,