Diaz, Jessica L.

Along with her affable approach, Jessica Diaz is known for her ability to embrace challenging legal questions and guide clients through uncertain legal terrain in the areas of water supply and land use.

Assisting clients on a broad range of California water, environmental, and land use matters, Jessica’s practice encompasses litigation, counsel on regulatory compliance, assistance with development entitlements, due diligence on real estate transactions and public law issues. Jessica helps public agencies, water providers and private property owners navigate issues related to common law water rights, the Sustainable Groundwater Management Act (SGMA), water diversion (SB 88) regulations, the California Environmental Quality Act (CEQA), California Coastal Act, State Water Resources Control Board (SWRCB) proceedings, mutual water companies, land use law, easements, takings challenges, well sharing agreements and disputes, government organization issues, and emerging legal questions faced by developers, water providers and water users.

Prior to her legal career Jessica worked in both state and local government, and her pre-law background supports both her appreciation for the needs of public agency clients and her ability to advocate for private entities in the public agency sphere.  She worked as an aide for a California state legislator and later served as the district director for a Sonoma County supervisor, where she worked on a range of policy issues including water resources, land use and solid waste. She also led a community-based nonprofit focused on the intersection of affordable housing, labor and environmental issues.

Representative Matters
  • Special water counsel for private equity firm One Rock Capital in connection with the completion of due diligence in support of the agreements to acquire Nestle Waters North America, the world’s largest bottled water company for over $4 billion. Brownstein water counsel led due diligence efforts on water assets, water rights, water supplies and offered industry and supply risk assessments for Nestlé Waters North America’s U.S. business, including regional spring water brands, production facilities and infrastructure related to the water business.??

  • Counsel to a broad group of agricultural stakeholders in the Salinas Valley providing assistance with the development of a Groundwater Sustainability Agency that includes significant participation by the agricultural groundwater users within the valley.

News & Events

Santa Barbara Zoo, Board of Directors

H2O Women Conference, Co-Chair

Water Education Foundation, 2018 Water Leader Class

Santa Barbara Mock Trial Competition, Judge

McBaine Honors Moot Court Competition, Brief Judge

Publications & Presentations
  • J.D., 2014, Order of the Coif, University of California, Berkeley, School of Law
  • B.A., 2006, Harvard College
  • California
  • Alaska

2020 Pacific Coast Business Times 40 Under 40

2018 Santa Barbara County Bar Association Pro Bono Award

2018 Young Water Professional, Water & Wastes Digest

Water Leaders Class of 2018, Water Education Foundation

2014 Land Use Law Writing Award, Berkely School of Law

Best Petitioner Brief, 2014 McBaine Moot Court Competition