South Lahontan

The South Lahontan region spans 17 million acres of land in central to southeastern California, encompassing numerous mountain ranges such as the Sierra Nevada, the Techachapi Mountains, the San Gabriel Mountains, and the San Bernardino Mountains; the region also hosts Mt. Whitney, the highest point in the contiguous US at 14,495 feet above sea level, as well as Death Valley, the lowest point at 282 feet below sea level.

Assessing Early Implementation of Urban Water Use Efficiency Requirements

Legislative Analyst's Office (LAO) | January 4th, 2024

Summary

Legislation approved in 2018 established a long‑term urban water use efficiency framework to “Make Conservation a California Way of Life.” This framework—which is

Assessing Natural Recharge in Indian Wells Valley, California: A Basin Characterization Model Case Study

U.S. Geological Survey (USGS) | March 18th, 2026

Summary

The communities in Indian Wells Valley (IWV), in the northern Mojave Desert in California, rely on groundwater for domestic and agricultural use. Mountain front recharge

Associations between PFAS in public water system drinking water and serum among Southern California adults

Nature Portfolio (Springer Nature) | October 30th, 2025

Summary

The CARE (California Regional Exposure) biomonitoring study measured PFAS in serum of Southern and Eastern California adults between 2018 and 2020. Participant addresses

Assumptions and Estimates for California Water Plan Update 2023 (Draft)

California Department of Water Resources (DWR) | October 14th, 2022

Summary

The draft Assumptions and Estimates for California Water Plan Update 2023 (draft A&E Report) describes key assumptions and estimates, data and data sources; improvements

Atmospheric circulation during Holocene lake stands in the Mojave Desert: evidence of regional climate change

Nature Portfolio (Springer Nature) | September 7th, 1989

Summary

It is commonly thought that the climate conditions that supported lakes over a period of years in the Mojave Desert in southern California, only existed before 8,

Beneath the Surface: Why Reservoirs Won't Solve California's Water Woes

Center for Biological Diversity (CBD) | November 19th, 2024

Summary

Water storage and conveyance have fundamentally shaped modern California. The vast agricultural industry, as well as globally important cities like Los Angeles, were made

Benefit Accounting of Nature-Based Solutions for Watersheds Landscape Assessment

United Nations (UN) | August 3rd, 2020

Summary

This landscape assessment is the outcome of Phase 1 of a tri-phased project and was designed to inform the path forward for engaging the private sector to invest in natu

Best Management Practices of the Sustainable Management of Groundwater Land Subsidence

California Department of Water Resources (DWR) | January 21st, 2026

Summary

The Subsidence Best Management Practices document (Subsidence BMP) provides a guide on the fundamentals of land surface subsidence (also called “land subsidence” or

Best Management Practices of the Sustainable Management of Groundwater: Land Subsidence (Draft)

California Department of Water Resources (DWR) | July 23rd, 2025

Summary

For almost a century, parts of California have been gradually sinking, impacting critical infrastructure and the communities who rely on it. Recognizing this challenge, t

Beyond the Haze: A UC Dust Report on the Causes, Impacts, and Future of Dust Storms in California

University of California, San Diego (UC San Diego) | December 5th, 2024

Summary

This report is intended to be a comprehensive summary of the current state of knowledge of dust storms in California, including where dust storms occur, the features cont

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