Rainfall Induced Infiltration into Sewer Systems: Report to Congress

摘要

The report has been prepared to meet the requirement of Section 523 of the Federal Quality Act of 1987 (PL 100 4) concerning rainfall induced Infiltration (Rii) into Sanitary Sewers. The report is divided into several Chapters & Apprentices, Chapter 1 describes the study objectives and approach, Chapter 2 presents an assessment of the Rii problems including the definition and characteristics of Rii a discussion of the problems associated with Rii and the presentation of ten case studies of sanitary sewer systems identified as experiencing Rii. Chapter 3 discusses methods & approaches for controlling Rii. The Appendices contain more detailed description of the case studies, further information on rehabilitation methods and design standards for Rii control, and a detail discussion of the Rii cost evaluation conducted for the study.