Drinking Water Distribution
Course Pack: Water Quality and Corrosion Control
TDS, Langelier, and Phosphorous
Course Description
An advanced module examining the Langelier Saturation Index, phosphate corrosion-inhibitor chemistry, temperature effects, and the operational role of flushing in maintaining corrosion-control program effectiveness.
Learning Objectives
1)Â Calculate Langelier index using field data
2) Explain phosphate corrosion inhibitor mechanisms
3) Identify temperature impacts on corrosion potential
4) Recognize need for flushing in phosphate programs
5) Evaluate inhibitor dose settings
Agenda
1)Â Inputs for TDS based indices and Langelier calculations
2) Temperature corrections and interpretation
3) Overview of phosphate inhibitor types and dosing practices 4
4) Importance of flushing in corrosion control programs
5) Practical applied examples
Target audience
Advanced distribution, water-quality, and corrosion-control personnel
Level
III
Learning material and method
Online on-demand
Assessment
Knowledge check and quiz (80% correct and above)
Instructor
Mike Harrington