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For the San Francisco 49ers, a big challenge for Levi's Stadium in Santa Clara, California was how to handle the facility's parking lots. Stormwater runoff in lots can contain litter as well as petrochemical pollutants from vehicles.
The stadium was built on a high water table near a creek, so it was important to find a way to prevent these chemicals from leaching into the environment.
The BioMed Filtration system, manufactured by Oldcastle Precast, addresses the problem by working to remove rainwater from the surface and collecting it into a series of large precast concrete basins.
When the runoff enters the biofiltration cell, it is naturally filtered and collected into a pipe that joins a storm-drain system. Pollutants that remain in the cell are then broken down by microbes. This helps keep the area clean, easy to maintain and protects the environment.