Low-cost sewerage provides practical solutions to the sanitation needs of low-income areas. As a result of the currently very rapid urban population growth, the demand for sewerage exceeds the resources of most high density urban areas in developing countries. Low-cost alternatives to conventional sewerage, such as settled sewerage and simplified sewerage, therefore need to be developed. This book is the result of contributions by both academics and practitioners who attended the International Conference on Low-cost Sewerage which was held at the University of Leeds, England, in July 1995. Low-cost sewerage technologies are described and their applications in both developed and developing countries are detailed.