The Sewerage and Water Board of New Orleans' wastewater collection system services an area of about 86 square miles. It consists of more than 1,600 gravity collection and trunk sewers ranging in diameter from eight inches to seven feet and more than 100 miles of force mains ranging in diameter from six inches to six feet. There are 83 pump stations that pump wastewater to the S&WB's two wastewater treatment plants – one on either bank of the Mississippi River – which have a combined capacity of 132 million gallons per day.
For the purpose of the SSERP, the wastewater system is separated into 10 districts, or basins – Lakeview, CBD/French Quarter, Gentilly, Uptown, Mid-City, Lower Ninth Ward, Carrollton, New Orleans East, South Shore and Algiers. Work on the SSERP is handled on a basin-by-basin basis.
(In the map below, place your mouse pointer over each basin to see its name. Click on any of the basins in the map below to see a more detailed basin map.)