Welcome to the St Marys Sewage Treatment Plant, proudly serving the community of Saint Marys, Ohio. Located at 399 Hickory Street, our facility is dedicated to maintaining the health and well-being of our residents by efficiently managing and treating wastewater. As a vital local government office, we are committed to safeguarding the environment through sustainable practices and innovative solutions. Our team of skilled professionals works diligently to ensure that our operations meet the highest standards of safety and compliance. We take pride in our role in preserving the quality of life in Saint Marys and are always here to address any questions or concerns from our community. Visit us to learn more about our services and how we contribute to a cleaner, healthier environment.