Lessons to be Learned from Lafayette Tennessee's Small Diameter Sewer System

by Rick Dedman, Boals, Brown & Dedman Inc, United States,

Document Type: Proceeding Paper

Part of: Critical Water Issues and Computer Applications


Lafayette, Tennessee's septic tank effluent, small diameter gravity sewer (SDGS) system is believed to have been the first such project to be funded by the United States Environmental Protection Agency (EPA). The project added more than 500 new users to the municipal sewer system. All of the users have been on line since 1983. More than 150 have been connected since 1982. The author was responsible for the planning and design of Lafayette's SDGS. As the consultant's director of enginnering he was also responsible for construction-phase and post construction evaluation services. Subsequently, he has used this experience in consulting with others in the planning, design and/or construction of more than twenty (20) small alternative wastewater systems (SAWS) and in conjunction with a dozen workshops, seminars and teaching courses. The majority of questions asked about Lafayette's SDGS are concerned with the very low construction cost, odors and reports concerning excessive infiltration. This paper presents answers to these questions.

Subject Headings: Sewers | Construction wastes | Construction costs | Construction management | Wastewater management | Odors | Gravity sewers | Project management | United States | Tennessee

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