To provide background material for A.I.D.'s participation in the World Water Supply and Sanitation Decade, a panel of experts has prepared a two-volume report (text and appendices) on water quality -- defined in terms of wholesomeness and palatability -- and its role in developing rural water supply (RWS) programs in developing countries. This second volume consists of two appendices to the main report. Appendix A is a 211-item bibliography with one item in German and the others written in or translated into English. Appendix B describes the history of contemporary drinking water standards, including those of the U.S. Treasury Department, U.S. Public Health Service, and U.S. Environmental Protection Agency; as well as those designed for Europe and the international community by the World Health Organization (WHO). Types of water supplies to which the standards apply, recommended analytical methods, requirements regarding water source and protection, and bacteriological, virological, physical, chemical, and radiological standards are discussed.