Sanitary Engineers typically spend their days designing, evaluating, and overseeing the construction or maintenance of water supply, sewage, and waste treatment systems. Responsibilities often include drafting plans, conducting site inspections, analyzing data from water quality tests, and ensuring compliance with environmental regulations. They may also collaborate with municipal officials, contractors, and other engineers to address project challenges and develop sustainable solutions. This role involves a balance of office-based design work and field visits, offering a varied and impactful daily routine.