A number of operations have supported access to safe water sources and sanitation services, and the better management of water resources, including giving 4.2 million rural people an improved water supply (from 2013). A $250 million urban water supply and sanitation project is to increase the sustainable water supply and sanitation services in Addis Ababa and selected cities, providing 1 million people in urban areas with improved water sources, 2.7 million with improved water supply services, and 200,000 with sanitation services. A follow-on $445 million IDA credit was approved in March 2017.  Under its CPF, the World Bank continues to support GoE’s goal of providing 100% national potable water supply coverage by 2020.
For a person working for a wage, their source of income is their job, or their labor (aka their time that they sell to someone). But you can own a house, and rent it out, and when your renters pay you renter every month, the source of that income check is your rental property, or your house. It would just be called rental income. If you have money in the bank in an account that pays interest, those interest payments are another source of income. We can say the source is interest payments, or we can identify the asset that is generating rent, and say your money in the bank that is generating “rent” (aka interest) is your source of income.