Once the CRD starts to treat the wastewater won’t this problem be solved?
No. Firstly, many problems can occur prior to wastewater even reaching the treatment facility. As an example, fats, oils and grease clog up pipes long before they reach the main pipes, often before they even leave the home plumbing system. Secondly, some contaminants are only partially removed by treatment or are only removed by very expensive treatment options. Prevention is the best and most economic alternative.