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COLLECTION SYSTEM I/I ANALYSIS, PRIORITIZATION, AND REHABILITATION

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Collection Systems are being required to meet new regulatory codes and requirements. Cities and Municipalities are taking proactive approaches to reduce Inflow and Infiltration (I/I) into their collection systems in order to meet regulatory and future Capacity Assurance, Management, Operations and Maintenance (CMOM) requirements. Public Sector Sources of I/I include deteriorating and aging manholes and pipelines. The focus of this paper is a collection system study for the City of Gladstone, Missouri (Gladstone). The purpose of this study was to identify and quantify I/I entering the collection system, and to create a rehabilitation plan which effectively prioritizes pipes and manholes to reduce I/I. Field work including flow monitoring, manhole inspections, visual pipe inspections, smoke testing, dye testing, building inspections, closed circuit television inspections (CCTV), and surveying were used to locate I/I. The paper will also discuss the key role that Black & Veatch's Sanitary Sewer Management System (SSMS) software played in defining the manhole and pipeline projects and the implementation of a Geographic Information System (GIS) to create an inventory of the collection system and provide easy access to data for this study and for future use by the City.
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Document Type: Research Article

Publication date: 2003-01-01

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