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Quantifying the Environmental Benefits of Real-Time Control in a Sewer Collection System

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The City of Indianapolis Department of Public Works (DPW) constructed eleven real-time controls (RTC) in the operation of the collection system between 1995 and 2004 to reduce combined sewer overflows (CSO). These eleven RTC facilities are part of the Early Action Projects (EAP) to reduce CSO frequency and volume. In 2009, DPW completed a hydraulic performance evaluation of each RTC facility using a computer hydraulic model simulation of RTC operations, and successfully quantified their environmental benefits in CSO volume reduction. This evaluation helped DPW to demonstrate the feasibility of utilizing RTC in the collection system to reduce CSOs. This evaluation of the RTC facilities provided a basis for DPW to further investigate additional CSO control projects that can utilize RTC. This technical paper provides a case study on quantifying the environmental benefits of RTC in a large sewer collection system.

Keywords: CSO; Operations; Real-Time Controls; Sewer Collection System; Wet-Weather Flow

Document Type: Research Article


Publication date: 2010-01-01

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  • Proceedings of the Water Environment Federation is an archive of papers published in the proceedings of the annual Water Environment Federation® Technical Exhibition and Conference (WEFTEC® ) and specialty conferences held since the year 2000. These proceedings are not peer reviewed.

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