Environmental Protection Agency acting assistant administrator for water Nancy Stoner and assistant administrator for enforcement and compliance assurance Cynthia Giles released a joint memorandum April 29 outlining the agency’s green infrastructure strategy for permitting and enforcement. The memo, Protecting Water Quality with Green Infrastructure in EPA Water Permitting and Enforcement Programs, said that the agency strongly encourages and supports the use of permeable pavements, grassy swales, and urban wetlands to manage stormwater and sewer overflows under permitting and enforcement programs. The agency also released a list of 10 cities that have agreed to work with the EPA on implementing green infrastructure approaches to managing stormwater runoff and sewer overflows: Austin, Boston, Cleveland, Denver, Jacksonville, Kansas City, Los Angeles, Puyallup, Syracuse, and Washington, DC.