Understanding how Legionella may enter and proliferate in water systems can help operators better manage naturally occurring Legionella populations. Recognizing the environmental conditions that support its growth is an essential first step in reducing system risk.

Understanding how factors affect distribution system integrity can help operators better implement and maintain preventive actions to control their systems.

Understanding how water treatment affects public health can help operators realize the importance of their daily work.

Understanding how flocculation and clarification can affect the filtration process can help operators produce the best finished water quality possible.

Understanding how filtration performance affects finished water can help operators understand the importance of regular monitoring and routine maintenance.

Understanding how proper coagulation is important for proper filtration can help operators know how one process affects the other in their treatment plant.

Utility laboratories commonly receive water samples with unknown contamination.Using nontargeted analyses to screen samples can provide clarity about potential problems and contaminants.Water utilities, regardless of size, greatly benefit from the ability to screen for unknowns, helping them identify potential contaminants in samples collected from their source waters and systems.

Field sampling presents various hazards that can be reduced by being aware of site‐specific hazards and safety measures.

Understanding the requirements behind receiving and using compressed disinfection gases can help operators safely perform their jobs and protect surrounding communities.

Understanding and appreciating operators’ support services and administrative processes can help utility staff better understand how to communicate their needs.

Understanding how manganese can negatively affect drinking water aesthetics can help operators know when to act.

Water operators can be a more influential voice in the water industry when they understand how to educate the public about their role in water treatment.

Understanding how a disinfectant residual may affect drinking water in the distribution system can help operators be better prepared for operational challenges and requirements.

Understanding how care must be taken when water mains are repaired and installed can help operators understand their role in providing high‐quality water to consumers.

Understanding the needs of building water system customers can help public water system operators provide information and assistance.

Understanding wastewater treatment processes is key to ensuring finished quality for discharge into the environment.

Understanding the increased use and practicality of water reuse will help operators when reuse is implemented in their system.

Understanding how basic safety practices can affect the daily work of operators can reduce the chance of harm to personnel and infrastructure.

Understanding how the laboratory is integral with the success of plant operations is key for operators to improve treatment processes and expand their knowledge.

Understanding how to control macroorganisms in source water and during treatment can help operators suppress their proliferation in the distribution system and prevent customer complaints.