Philadelphia Proposes Ambitious 'Green' Infrastructure Plan.

The article reports on the infrastructure plan proposed by the Philadelphia Water Department in Pennsylvania to reduce combined sewer overflows and implement sustainability. The proposed plan includes green infrastructure implementation, upgrading the three wastewater treatment plants, and restoring stream corridors. The plan, which costs 1.6 billion dollars, was submitted to the Pennsylvania Department of Environmental Protection and U.S. Environmental Protection Agency in September 2009.