An interactive map visualization and data repository of water consumption in LA County.

Produced by the California Center for Sustainable Communities at UCLA.

This LA Water Hub is a central location for information on LA County urban water management across the many centers of expertise at UCLA. Please also visit the Sustainable LA Grand Challenge website. Sustainable LA is publishing in 2017 the most comprehensive assessment of urban water management for a metropolitan system (City of LA) to date in literature, including a watershed-by-watershed analysis of local water supply potential. And, if you are adventurous to care about energy consumption and greenhouse gas emissions, check out the LA Energy Atlas, a first-of-its-kind website visualizing and downloading detailed energy use data for cities and neighborhoods in L.A. County.

September 21, 2017: "The Dollars and Sense of Local Water Supply in Los Angeles", presented as part of the UC Water Annual Retreat, describes some results from analysis of the future of LA County water management, considering the complicated agency structure, hydroeconomics, and urban ecology.

September 16, 2017: We participated in the "Re-Drawing Urban Waters" working group at the workshop for Sustainable Cities and Landscapes of the Association of Pacific Rim Universities (APRU).

August 8, 2017: The second study on local water supply potential in the Dominguez Channel watershed is out from the UCLA Sustainable LA Grand Challenge. The first published study on the Ballona Creek watershed is available online. Stay tuned for more studies and the final report in 2017.

July 31, 2017: In July, we presented findings from the 5-year long National Science Foundation research grant, focused on the potential for local water supply in LA, to our Technical Advisory Committee at UCLA. The group of regional utility managers and stakeholders saw the results of research and provided feedback and discussion, as we collectively shape the future of water management in LA. Presentations from the workshop are now posted online, including:

July 21, 2017: Liza Litvak and Diane Pataki at the University of Utah developed fact sheets detailing the new methods developed to estimate urban evapotranspiration in LA based on species-specific measurements of tree and lawn water use. The briefs are available below. The work informed a recently published study of urban ET in LA from project team members Liza Litvak, Kimberly Manago, Terri Hogue, and Diane Pataki.

June 1, 2017: Source code, data, documentation, and GIS files are online for Artes, all posted in a Github repository.

May 22, 2017: We presented at ASCE's Environment and Water Resources International conference in Sacramento.

March 18, 2017: The beta version (v.2.0) of the LA Water Hub includes updated pages throughout, along with a description of our new water resource systems model for L.A. (Artes). Information and links for the model are detailed on the Modeling page. It asseses the potential for maximizing local water supply across scenarios of supply and demand in L.A.

January 14, 2016: The beta version (v.1.0) of the LA Water Hub is live. It includes dynamic mapping capabilities for groundwater basins, water supply agencies, and water sources and demands throughout the county. Still under development are pages detailing the larger California engineered water system that brings water to Southern California, as well as detailed maps of residential per capita use by retailer agenices from the State Water Resources Control Board. Please send us an email with any comments or needed corrections.