Governments are drawing on private initiative and capital to address the deficiencies of water and sewage systems and the need for new facilities. A World Bank study of municipal water projects in these countries found that revenues collected by utility companies cover only 35 percent of the cost of water. Unaccounted-for water (UFW)--the difference between net production of water and paid consumption--is in the range of 40­60 percent for many developing country utilities, compared with 10­20 percent for efficiently managed utilities. High rates of UFW reflect leakage as well as inability to bill and collect payments. Public water systems also tend to be overstaffed, often with 10 to 20 employees per 1,000 connections, compared with 2 to 3 employees per 1,000 connections required for efficient operations.