A rumor has circulated that the number of football fans rushing to use the restroom during the Super Bowl halftime show each year stresses municipal water and sewer systems.

According to the Metropolitan Water Reclamation District of Greater Chicago, excessive salt usage can do serious harm to water sources, and can also negatively impact wildlife, soil, and even the paws of animals that walk on the treated surfaces.

In 1900, the Metropolitan Water Reclamation District of Greater Chicago (MWRD), then known as the Sanitary District of Chicago, completed a project that not only altered the course of a river but also redefined how cities safeguard public health and protect vital water resources.