Stormwater Management

The use of lightweight aggregates in stormwater management systems is gaining attention for their enhanced filtration capabilities and ability to address environmental concerns like phosphorus (P) runoff. One example is the $5-million Airport MINI of Cleveland dealership located in Brook Park, Ohio, which incorporates expanded shale, clay, and slate (ESCS) aggregates to improve the performance of its stormwater management system.

Expanded shale is a key component in the stormwater and sanitary water management system at Pittsburgh’s Phipps Conservatory and Botanical Gardens. The Center for Sustainable Landscapes uses expanded shale, clay, and slate (ESCS) extensively in constructed wetlands to treat all the sanitary water on-site. In addition, rain gardens, lagoons, and rooftop gardens featuring ESCS media capture and filter all the stormwater, ensuring that none of the water leaves the site.