Occurrence of Total Organic Halogen and Trihalomethanes in Tap Water in Various Conditions. Part 2. Effects of Raw Water Quality and Retention in a Building Pipe System.

A Case Study on the Effect of Storage of Advanced Treated Water in a Building’s Plumbing System on Trihalomethane Levels

“…Here, the former is referred to as ''stored water'' and the latter is ''distributed water''. Several studies have reported increased THM levels (Smith et al 1980;Shikada et al 1993;Takahashi et al 2003) and loss of free residual chlorine (Yamamoto et al 1981) in stored water. Less attention has however been paid to changes in THM concentrations between the time the water enters the receiving tank and the time it is drunk.…”