Water quality monitoring and management are crucial for ensuring the safety and sustainability of our water resources. It involves continuous assessment of physical, chemical, and biological characteristics of water to detect any changes or contaminants that could pose risks to human health and the environment. Monitoring programs utilize various technologies and sampling techniques to gather data, which is then analyzed to make informed decisions about water treatment and conservation strategies. Effective management strategies include pollution prevention, watershed protection, and regulatory controls to maintain or improve water quality. Public awareness and community involvement are also essential for successful water management efforts. By monitoring and managing water quality effectively, we can safeguard ecosystems, support sustainable development, and ensure access to clean water for future generations. Most of the topics introduced in this book cover new techniques and processes of water quality monitoring and management. The various technological progress that have future implications are glanced at in this book. It will help the readers in keeping pace with the rapid changes in this field.