Abstract

Broken and damaged sewers, laterals, and manholes are responsible for wet weather inflow and infiltration (I/I) that cause the combined and sanitary sewer overflows (CSOs and SSOs). Management of wet weather overflows is a fertile field for the GIS technology. By using geographic information in mapping, facilities management, and work order management, a wastewater system manager can develop a detailed capital improvement program or operations and maintenance plan of the collection system. This chapter shows GIS applications for inspection and maintenance work order management, TV inspection of sewers, thematic mapping of manhole and sewer inspection data, and creation of service lateral maps from the sewer inspection data. Real world examples and case studies are presented to show how GIS can be used for the improved inspection and maintenance of collection systems.

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