Yes, today you can track the amount of water a property uses, and compare water use for that property over time or against other properties in your portfolio.
In addition, EPA's ENERGY STAR and WaterSense programs are working together to develop the first 1-100 score for water efficiency, specifically for multifamily buildings, with an expected release of August 2017.
At this time, we don't have any plans to add any additional water scores (for other property types) because we don't have the necessary data. To create a Score for a new property type for either Water or Energy, EPA needs to analyze data from a sufficiently large, nationally representative sample of similar buildings. See this FAQ for more information.