Clean water refers to water that is free from harmful contaminants and pathogens, making it safe for drinking, sanitation, and agricultural use. In the context of institutional reforms during the 19th century, access to clean water became a pressing public health issue, leading to various initiatives aimed at improving water quality and infrastructure in urban areas. The emphasis on clean water not only influenced public health policies but also sparked broader discussions about sanitation, urban planning, and government responsibility in providing essential services to citizens.