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Overview

Sewer separation is the construction of new sanitary or storm sewers within a combined sewer service area. The existing sewers will then serve as either sanitary or storm sewers, depending upon the design intent of the newly constructed sewers. In a separate system, stormwater is conveyed to a storm water outfall for discharge directly into the receiving water. The sanitary flow is typically piped to a treatment plant for screening and disinfection before being discharged.

Under the current Authorized CSO Remediation Plan, the City will fully separate the Greensferry and McDaniel CSO Basins and the Stockade Sub-basin (Custer CSO Basin). This plan will increase the city's total separated area from 85% to about 90% and eliminate two CSO facilities and one CSO regulator.

 
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