That figure includes all the water in the world, not just fresh water. Waterborne disease are the world's leading cause of illness. Excessive withdrawl of groundwater has caused parts of Mexico City to sink. In some areas, the ground has sunk about 9 meters in the last century. Unlike energy, water has not been the goal of conservationalists.
Water efficiency is practically non-existant.
Boston is one city that can provide an example of a water conservation effort. Since 1987, the Massachusetts Water Resource Authority has managed avoiding the diverting of two large rivers to increase the water supply. For a third of the cost of the planned diversions, the government reduced the demand on the water supply by 24 percent by replacing leaky water pipes, installing water saving fixtures, amd educating people on water conservation. In the third world, as much as sixty percent of water is lost through leaky pipes and theft of water. Urban Waste Garbage is most voluminous is larger, richer countries, but it is much more visible in cities of developing countries.