Drinking Water Distribution
Course Pack: Drinking Water Distribution and Maintenance
Distribution System Monitoring Part 2
Course Description
This module continues the exploration of distribution-system monitoring by
focusing on pH/oxidizer interactions, dosing relationships, and interpretation of millivolt (ORP)
measurements. Learners learn accurate field and bench methods for TDS and conductivity
testing, along with selecting appropriate monitoring locations to improve system awareness. The
module emphasizes ORP-probe use, trend evaluation, and applied monitoring strategies to
support distribution-system protection.
Learning Objectives
1) Interpret pH and oxidizer interactions
2) Explain dosing relationships and millivolt readings
3) Measure TDS and conductivity for decision-making
4) Select appropriate monitoring locations
5) Utilize ORP probes to detect system risks
Agenda
1) Relationships among pH, oxidizers, and dosing requirements for effective process control
2) Interpretation of millivolt readings for assessing oxidation‑reduction conditions
3) Techniques for accurate TDS and conductivity measurement in field and bench settings
4) Review of controlled benchtop dosing procedures to evaluate treatment performance
5) Criteria for selecting monitoring points and applying ORP monitoring for system protection
Target audience
Operators responsible for advanced distribution-system monitoring and water-quality decision-making
Level
II, III
Learning material and method
Online on-demand
Assessment
Knowledge check and quiz (80% correct and above)
Instructor
Mike Harrington