Sewer Collection System Model
In 2003, the City embarked on creating a computer model of its sewer collection system. The primary purpose was to support development of the (2009) CSO Long Term Control Plan (LTCP), by characterizing sewer system components, improving understanding of system operations, and identifying cost effective controls. The model was used to develop the original LTCP in 2009 and for LTCP updates in 2014 and 2021. The model informs CSO project designs by identifying concerns and constraints. As the model evolves, changes to the sewer system are continually incorporated. This allows the team to identify cost-effective controls and answer complex questions.