AWWA ACE68706

This powerpoint presentation begins by providing background information on the internal layers of scale inside pipes that contain corrosion byproducts. An example of a case in Texas is presented, along with tap water quality and pipe water interactions. Key observations include: distribution systems are complex and dynamic (corrosion, nitrification, biological re-growth); chemically and biologically stable water will reduce the influence of pipe materials on water quality; and, select benign pipe materials or lined pipes for new or replacement pipes. Includes figures.