The Inland Empire Utilities Agency (IEUA) is a regional agency that supplies imported and recycled water; collects, treats, and disposes of wastewater and provides other utility-related (renewable electrical energy, compost) services to the communities it serves. IEUA, a member agency of Metropolitan Water District of Southern California, manages a regional conservation program which provides residential and commercial rebates, targeted incentives, and education programs (National Theater for Children, Garden In Every School) for Monte Vista Water District customers.

The Water Education Water Awareness Committee (WEWAC) is a consortium of 10 water agencies in west San Bernardino County whose mission is to promote the efficient use of water and to increase public awareness of the importance of water in Southern California. WEWAC programs include EduGrants, Project WET (Water Education for Teachers) Workshops, a Public Service Announcement Video Contest, a drought-tolerant demonstration garden at the Los Angeles County Fair, message board announcements at Rancho Cucamonga Quakes games, and an interactive website promoting wise water use. Monte Vista Water District is a charter member of WEWAC.

WaterSense is a national program, administered by the U.S. Environmental Protection Agency (EPA), that offers people a simple way to make product choices that use less water--and perform as well or better than your existing products. Look for WaterSense labeled products at a store near you! EPA maintains an online directory of labeled products, some of which qualify for rebates from Monte Vista Water District. Monte Vista Water District is a WaterSense Partner.