Are starting water qualities of importance for the production process of UPW and it’s quality?

Raw water qualities have non-negligible influences on how the UPW treatment processes are designed. The major influences come from specific organic molecules present in the raw water and their variations, which strongly and quickly affect the TOC spec in UPW. Such typical critical molecules can be urea, Trihalomethanes (DBPs), or, in general, low polar molecular weight organics.