05/29/2026
Modern sewer systems are easy to take for granted, but they remain one of the greatest public health advancements in history. From ancient clay pipes to today’s engineered wastewater systems, sanitary sewers transformed communities by reducing disease, improving sanitation, and supporting population growth. Learn more here: https://www.sdsdut.gov/from-open-ditches-to-engineered-systems-how-sanitary-sewers-changed-the-world