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Overflow Regulation System: the District’s O.R.S. is focused on the facilities that evolved from the former direct discharges of sewage from trunk sewers into the Mississippi River. The system now includes the management, operation, maintenance and improvements to the integrated trunk sewer outfalls, riverfront interceptors, interceptor pump stations and flood protection facilities. The goal of the O.R.S. is to capture the maximum amount of sewage and wastewaters and convey these to wastewater treatment plants at Bissell Point and Lemay.