The answer to that question is “no”. The definition of “access to improved water” is quite minimalist - i.e. water that is not shared with animals! A more stringent definition reveals that 2 billion human beings continue to have access only to unhealthy water, and between 3 and 4 billion - roughly half the human race - continue to drink water of dubious quality. In addition, as urban environments expand, the supply of water and sanitation infrastructure will not be able to keep up with population growth.