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Web Based Decision Support Tools for Selection of Condition Assessment and Rehabilitation Methods for Laterals (WERF Report INFR2SG09)
Citation:
Simicevic, J. AND E. Allouche. Web Based Decision Support Tools for Selection of Condition Assessment and Rehabilitation Methods for Laterals (WERF Report INFR2SG09). Water Environment Research Foundation, Alexandria, VA, 2012.
Impact/Purpose:
A new web portal has been developed that provides wastewater agencies and property owners with up to date information on sewer lateral inspection techniques, repair and rehabilitation methods, as well as relevant legal and financial issues. The site also offers a discussion forum for sharing knowledge and experiences on this topic. The portal is hosted on Louisiana Tech’s server at http://138.47.78.37/werf/home.asp. Benefits: Provides a concise and informative reference on issues related to defective private sewer laterals. Provides brief descriptions of available inspection technologies and construction techniques for rehabilitation of sewer laterals. Includes an extensive case studies database illustrating where and how the techniques for inspection and rehabilitation have been applied. Provides a useful and easy-to-use method selection tool for identifying suitable methods to rehabilitate private sewer laterals in real site conditions. Provides a concise reference on how legal and financing issues regarding sewer laterals can be addressed. Offers an electronic peg board to facilitate interaction on this topic among professionals working in this area.
Description:
Abstract: It has been observed that the majority of older sewer laterals made of concrete or terracotta pipe are deteriorating rapidly. Wastewater agencies, typically responsible for maintaining the portion of the sewer lateral located in the public right-of-way, and property owners, typically responsible for the portion of the lateral located within the private property,face the dilemma of whether to replace or rehabilitate deteriorated laterals at significant expense. Deferment of needed rehabilitation translates to increase in the wastewater agency annual operation and maintenance budget and increased risk to the property owner. Sewer lateral deterioration leads to pipe collapse and costly sewer backup. Increase in transmission and treatment costs due to inflow and infiltration (I/I) into the public sewer system is inevitably borne by the ratepayer. [NOTE: The link below connects to a WERF site where the Final Report can be downloaded for free, after registering at the WERF site. For some projects the Executive Summary is available and can be downloaded for free without registering on the WERF site.]
