While offices do not traditionally use huge amounts of water, heating what we do use was looked at as an area for long-term savings when we built our new facilities in Heber City, Utah. That was discussed in more detail in our blog post about the heating and cooling system.
Other ways we save on water consumption is by using high-tech assistance. For instance, all the faucets in the building are motion-sensored to minimize water wastage, and all of the toilets are low-flow units using just 1.5 gallons per flush.