Stormwater Management, Inc.

When bigger is better: large-scale rental car facility uses innovative treatment system to surpass stormwater regulations

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Courtesy of Stormwater Management, Inc.

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Nearly 53,000 people fly in and out of Maryland’s Baltimore/Washington International Airport (BWI) daily. The 3,596-acre airport provides both parking for departing passengers and access to thousands of rental cars for arriving passengers. Recently, BWI opened a new 50,000 sq. ft., two-story, 6,000 car parking facility and one-stop car-rental mall.

Engineers at Michael Baker Corporation, Alexandria, Va., installed a treatment system for stormwater running off the building’s rooftop, the top floor of its 6,000-car parking garage, and facility roadways and auxiliary parking areas. Using a passive, underground filtration system, the engineers met Maryland’s stringent water quality requirements while protecting the local environment from pollutants, including sediments, nutrients, heavy metals, and oil and grease.

 

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