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Open Access Planning Level Cost Estimation for Sustainable I/I Reduction Using a Performance-based Cost Function

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Abstract:

This paper presents an alternative approach to estimating the cost of I/I reduction that is not technology dependent because it is based on performance results from a wide range of I/I reduction projects. The Water Environment Research Foundation (WERF 2003) documented demonstration projects; the study reports the I/I reduction achieved and the cost. These projects along with other available I/I project experiences from Milwaukee, Wisconsin and King County, Washington were used to create a performance based cost function for the unit cost of I/I removed based on pre-rehabilitation I/I rates. Experience from the Milwaukee Metropolitan Sewerage District shows how the approach has been applied to determine the cost of I/I reduction for sustainable facilities planning. This method can be applied to overall system master planning as well as preliminary planning of smaller conveyance upgrades projects.

Keywords: COST ESTIMATING; I/I REDUCTION; PERFORMANCE BASED COST; SEWERSHED I/I RATES; SUSTAINABLE SYSTEM PLANNING; WERF I/I PROTOCOL

Document Type: Research Article

DOI: http://dx.doi.org/10.2175/193317707X269618

Publication date: December 1, 2007

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  • Water Practice™ publishes peer-reviewed articles and reports focusing on applied water studies. Topics include monitoring, facility operations and maintenance, management, policy, and other issues of interest and concern to water practitioners. The Journal publishes on a monthly to bi-monthly basis and is available online only.
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