Hacienda is leading the way in water conservation by utilizing its recycled water delivery system to irrigate landscaping. The infrastructure has been in place since Hacienda was built, but until recently recycled water was not available locally. Thanks to a new recycled water program through the City of Pleasanton, Hacienda has enough recycled water available to maintain approximately 2/3 of its landscaping. Hacienda is also reducing its water use with drought resistant landscaping and updated park standards.

New developments are required to plant drought resistant landscaping that requires less water and fewer chemicals. To educate existing tenants about the benefits of the new standards, Hacienda promotes the fact that drought resistant plants are good for the environment and the bottom line. Over time, Hacienda has also greatly reduced the amount of water used in the development through upgrades that insure water is delivered in the minimum required amount at the appropriate times.
The innovation and quality design principles at Hacienda have enabled it to respond quickly, and effectively, to rapidly evolving expectations about how to use this vital resource. As part of the initial development approvals, Hacienda was required to monitor a number of environmental parameters, including water quality. A monitoring program was established to provide baseline data for the development. Water quality parameters measured included water depth levels, flow and quality.

The monitoring program was modified in 1990 to reflect new standards and procedures recommended by an outside consultant, who determined true groundwater aquifers should be monitored, rather than the shallow groundwater aquitard. Monitoring was also changed to a yearly exercise. The data generated established the status of groundwater conditions which were, in turn, measured against federal, state and local requirements.

In 1997, routine water and air monitoring activities were concluded after satisfactory evidence was presented to the City of Pleasanton that full time monitoring was not required. Future water monitoring activities will be implemented on a project specific based on future need. Given the absence of heavy industry in Hacienda, no new requirements have emerged since the routine program was discontinued.