SPEEDWAY | The Indianapolis 500 is not only a test for drivers, teams, traffic officers and concession stands. It is also a test for hidden infrastructure, including the wastewater system that has to handle what happens after hundreds of thousands of race fans eat, drink and flush.
Mirror Indy reported that Speedway is preparing its wastewater treatment plant for increased flows tied to Indianapolis 500 crowds. The plant is designed to handle an average of 7.5 million gallons of wastewater flow a day and can handle up to 8.9 million gallons if needed, according to the report.
The challenge is not only volume. Ammonia loads can rise sharply during race week because crowd size, drinking and proximity to the track all affect what reaches the plant. Mirror Indy reported that portable-toilet waste from IMS is transported to Citizens Energy Group’s Belmont Advanced Wastewater Treatment Plant, while other wastewater flows through Speedway’s plant before treated water is released into Eagle Creek.
The issue became serious enough for Speedway to sign an agreed order with the Indiana Department of Environmental Management. The town agreed to develop a pollutant-control plan or face potential penalties for violations and reporting delays.
That plan includes a $14 million expansion and modernization of the wastewater treatment plant, with construction expected to begin in June after the race. In a town built around the world’s largest single-day sporting event, race-week infrastructure has to be strong enough for both normal residents and extraordinary crowds.
The story is a reminder that major events rely on systems fans rarely see. Roads, drains, treatment plants, trash routes, police radios, medical stations and power systems all carry the weight of race month.
Additional Reporting By: Mirror Indy; Indiana Department of Environmental Management reporting; Town of Speedway materials; CGN Sports Desk