Drinking water regulations and information The primary goal of the Public Health Drinking Water Program is to prevent communicable disease and illness associated with drinking water from small public and individual private water systems.
Wastewater and septic tank regulations, inspections, and information The Public Health Wastewater Program helps to ensure that over 115,000 septic systems including 192 septic systems in Seattle are safe. Septic systems treat wastewater when homes and buildings are not connected to public sewer systems.
