Water and Wastewater Disinfection
Course Pack: Sodium Hypochlorite
System Corrosion Issues
Course Description
This course provides water and wastewater professionals with a practical overview of corrosion mechanisms, monitoring methods, and mitigation strategies used to protect system integrity and water quality. Participants learn to interpret corrosion coupons, ORP data, BART testing, microbial indicators, and surface‑chemistry factors that influence corrosion behavior. The course emphasizes flushing schedules, sediment control, documentation, and corrective actions that support regulatory compliance and reliable system performance.
Learning Objectives
1) Describe corrosion mechanisms in water systems
2) Calculate and interpret corrosion coupons
3) Identify iron and sulfate reducing bacteria
4) Explain ORP, grounding, and surface chemistry impacts
5) Apply flushing schedules and sediment controls
Agenda
1) Core corrosion mechanisms in drinking water systems and their impacts on distribution
integrity
2) Corrosion coupon evaluation, including calculation methods and interpretation of results for
compliance monitoring
3) BART testing procedures and the role of microbial activity in corrosion and water quality
management
4) Surface chemistry factors, including grounding interactions, that influence corrosion and
system performance
5) ORP, impurities, sedimentation, and flushing schedules and other mitigation strategies used
to maintain distribution system water quality
Target audience
Operators, distribution personnel, and compliance staff responsible for corrosion monitoring and system-water-quality management.
Level
III
Learning material and method
Online on-demand
Assessment
Knowledge check and quiz (80% correct and above)
Instructor
Mike Harrington