WASHINGTON – The Department of Justice, the U.S. Environmental Protection Agency (VS) Metropolitan Water Reclamation District of Greater Chicago (MWRD), "claims that untreated sewer discharges were released into Chicago area waterways during flood and wet weather events." (DOJ), Ignacia S. Moreno, assistant attorney general for the Environment and Natural Resources Division of the Department of Justice. “This settlement mandates that MWRD make critical structural changes… requires MWRD to invest in green roofs, rain gardens and other green infrastructure.