Once completed, the CSO tunnel system will reduce 90 percent of combined sewage
overflows into the rivers, which occur during large rain storms.
That sometimes led to sewage
overflows into the Willamette River.
These controls and similar controls that MSD has already implemented will result in the reduction of almost 13 billion gallons per year of
overflows into nearby streams and rivers.
The Sewerage & Water Board of New Orleans has agreed to reinstate its comprehensive program--stalled for several years in the aftermath of Hurricane Katrina--to make extensive improvements to reduce or eliminate sewage
overflows into the Mississippi River, Lake Pontchartrain and its storm drainage canal system, the Justice Department and U.S.
The city of Jeffersonville, IN, has agreed to make extensive improvements to its sewer systems that will significantly reduce the city's longstanding sewage overflows into the Ohio River in a comprehensive Clean Water Act settlement with federal and state government, the Justice Department, the U.S.
According to a consent decree filed in September in federal court, the city is required to develop and implement a comprehensive plan to reduce, and where feasible, eliminate overflows into the Ohio River from its combined sewers by calendar year 2020 or 2025, depending on Jeffersonville's financial health; implement a plan with specific actions to improve the capacity, management, operation, and maintenance of its sanitary sewer system to eliminate overflows of untreated sewage; and eliminate all discharge points within its sanitary sewer system.
The city of Indianapolis has reached a tentative agreement with state and federal agencies on a 20-year plan to reduce raw sewage
overflows into Marion County waterways.
Environmental Protection Agency has awarded a $192,900 grant to Cheltenham Township, Montgomery County, Philadelphia, to help upgrade its sewer system and reduce sewage
overflows into Tookany Creek.
