What’s Needed, Inspections, and Biofilm

This course pack provides a comprehensive overview of biofilm in drinking-water distribution systems, focusing on how biofilm forms, develops, and impacts water quality, system efficiency, and public health safety. It explains the role of microorganisms in creating biofilm layers inside pipes, storage tanks, and distribution networks, and how conditions such as stagnation, low disinfectant residuals, and nutrient presence accelerate its growth.

Learners will gain a strong understanding of biofilm-related operational challenges, including microbial contamination risks, reduced disinfection effectiveness, and water quality issues such as taste, odor, and discoloration. The course also introduces practical methods for biofilm detection, monitoring, and field inspection, helping operators identify early signs of biofilm accumulation in distribution systems.

In addition, the training focuses on effective biofilm control and prevention strategies, including flushing programs, hydraulic optimization, disinfection management, and routine system maintenance practices. Designed for water system operators and professionals, this course supports improved biofilm management, regulatory compliance, and safe, reliable drinking-water distribution system performance.