Basic Chlorination - Intro Distribution (2 Contact Hours)

This self-paced, on-demand course covers the essential principles and practices of chlorination used in California public drinking water systems. Students will explore the critical role of chlorine in disinfection, the chemical reactions involved, proper dosage calculations, regulatory standards, and troubleshooting common operational challenges.

Topics include:

• The history and necessity of chlorination in public health

• Chlorine demand, dosage, and residual management

• Forms of chlorine (gas, liquid, solid) and their properties

• Breakpoint chlorination theory and calculations

• CT (Concentration x Time) treatment technique fundamentals

• Advantages and disadvantages of chlorination methods

• Chlorine safety procedures, including cylinder handling and emergency protocols

• Chloramines as alternative disinfectants: benefits and limitations

• Compliance with disinfection byproduct (DBP) standards (e.g., THMs, HAA5s)

Learners will engage with real-world examples, CT calculation exercises, and review quizzes based directly on California certification standards.

Learning Objectives:

• Understand how chlorine disinfects drinking water and the factors affecting its performance

• Apply proper calculation methods for chlorine dose, demand, residual, and CT values

• Safely manage chlorine storage, transportation, and emergency response

• Meet California State regulatory requirements for water disinfection and residual monitoring

• Identify potential issues such as nitrification and DBP formation and implement best practices to mitigate them