Sustainable Groundwater Management Act
In the midst of a major drought, California Governor Jerry Brown signed what is perhaps the most significant legislative water initiative in California in half a century: the Sustainable Groundwater Management Act of 2014 (SGMA) (also online) [Ley de Gestión Sustentable del Agua Subterránea]. The act consists of three legislative bills, Senate Bill SB 1168 (Pavley), Assembly Bill AB 1739 (Dickinson), and Senate Bill SB 1319 (Pavley). The legislation provides a framework for long-term sustainable groundwater management across California. Under the roadmap laid out by the legislation, local and regional authorities in medium and high priority groundwater basins have formed Groundwater Sustainability Agencies (GSAs) that oversee the preparation and implementation of a local Groundwater Sustainability Plan (GSP).
The California Department of Water Resources has developed regulations governing the content of Groundwater Sustainability Plans. Local stakeholders have until 2022 (in critically overdrafted basins until 2020) to develop, prepare, and begin implementation of Groundwater Sustainability Plans. GSAs will have until 2040 to achieve groundwater sustainability.
Online Databases and Data Resources
- Groundwater Exchange (California groundwater data and literature portal)
- Link to all of California's Groundwater Sustainability Plans
- SGMA Overview (California DWR)
- California Water Watch (California DWR)
- California's Groundwater Live (California DWR)
- Data and Tools Portal (California DWR):
- SGMA Data Viewer (water levels, groundwater storage, water quality, land subsidence, interconnected surface water, water budget, hydrogeologic conceptual model, boundaries)
- Well Completion Report Map Viewer
- Land Use Viewer
- Groundwater Dependent Ecosystems: Natural Communities Viewer
- California Natural Resources Agency Open Data Portal
- Water Data Library
- Water Management Planning Tool
- Groundwater Basin Boundary Assessment Tool
- Disadvantaged Communities Mapping Tool
- (see additional tabs within the Data and Tools Portal for further resources: data, models. climate change tools, groundwater level change maps, reports, and Prop 68)
- CASGEM Information (California DWR)
- Wells Information (California DWR)
- Flood-MAR / Agricultural Managed Aquifer Recharge Overview (California DWR)
- Geophysical imaging of California aquifers (California DWR)
- Groundwater Quality Data Online Tools (SWRCB)
- Human Right to Water Data Portal (OEHHA)
- Indicators of Groundwater Dependent Ecosystems in California (TNC, CDFW, CDWR)
- Land Subsidence Data (InSAR) (also Land Subsidence mapping tool in the SGMA Data Viewer)
- California Data Exchange Center (river conditions, water supply)
- California Natural Resources Agency Open Data
- Visualization of the approximate route of a water drop, anywhere in the U.S.
- Current and historic satellite imagery:
- Water and ecosystems: Sentinel-2 Web Browser
- Evapotranspiration: OpenET
- Flooding conditions: FloodScan
Resources on Sustainable Groundwater Management
California State Agency Portals:
- SGMA Resources
- SGMA Data and Tools Portal
- SGMA Facilitation and Technical Services
- SGMA Factsheets by the State Water Board
- Basin Prioritization
- Best Management Practices and Guidelines
- Groundwater Sustainability Agencies
- California Groundwater Bulletin 118
- Critically Overdrafted Basins
- Adjudicated Areas
- Sustainable Groundwater Management portal
- State Water Board Groundwater Portal
- Department of Fish and Wildlife Groundwater/SGMA Program
Guidelines, White Papers, Resources:
- The Sustainable Groundwater Management Act, A Special Issue of the journal California Agriculture (2018)
- Handbook on Stakeholder Engagement in the SGMA process (UCS 2017)
- Groundwater Markets - Trading Water Sustainably (UC Berkeley 2017)
- SGMA Workshop: Groundwater Management Case Studies (ACWA, CWF, RCRC)
- Interbasin Groundwater Flow Evaluation General and Technical Guidelines
- Groundwater Rights Primer (Maven's Notebook 2018)
- A Guide to Water Quality Requirements under SGMA (Stanford 2019)
- Recharge Net Metering to Enhance Groundwater Sustainability (UC Berkeley 2018)
- Navigating Groundwater-Surface Water Interactions for SGMA (UC Berkeley 2018)
- Improving California's Stream Flow Monitoring Network (UC Berkeley 2018)
- Data for Water Decision Making (UC Berkeley 2018)
- Framework for Groundwater Modeling (Stanford University 2017)
- SGMA Workshop: Groundwater Management Case Studies (ACWA, CWF, RCRC)
- Groundwater in the News
- Califorrnia Water Library (available in late 2018)
- Los usuarios de pozos domésticos y la Ley de Gestión Sustentable del Agua Subterránea (SGMA) [en espagnol]
Overview and Early Implementation Guidelines (2014-2016):
- Groundwater Sustainability Plans: DWR Guide
- Groundwater Sustainability Plans: DWR Regulations
- SGMA Implementation Factsheet, State agencies/ACWA/GRA/Univ. of California
- SGMA Handbook, Water Education Foundation
- DWR Strategic Plan for SGMA implementation
- Comparison chart: AB3030 Groundwater Management vs. SGMA
- Outline of the SGMA (Downey-Brand)
- Outline of the SGMA (Brown-Hyatt-Farber-Schreck)
- CWF Guide to Forming Groundwater Sustainability Agencies
Webcasts / Videos
- PPIC Policy Priorities for CA Water Panel Discussion: Implementing the Sustainable Groundwater Management Act
- UC ANR Webinar: Understanding the Implementation of SGMA
- GRACast: Managing the Groundwater-Surface Water Interface Under California's New Groundwater Law
- GRACast: Sustainable Groundwater Management Act: What you need to know
- GRACast Series on Sustainable Groundwater Management
- UC ANR: Water and Drought Online Seminar Series
- UC Davis: California Groundwater Policy Seminar Series (all webcast links)
- Overview of California groundwater - Graham Fogg
- California's 2014 Sustainable Groundwater Management Act - Tina Canon-Leahy, Cindy Tuck, Kate Williams
- Sharing groundwater: Legal issues and challenges -Richard Frank, David Aladjem
- Toward groundwater sustainability and planning in an agro-urban basin - Tim O'Halloran
- Groundwater management practices for local sustainability - David Orth
- California State activities to implement SGMA - Michael Lauffer and David Gutierrez
- Groundwater-dependent ecosystems - Maurice Hall, Thomas Harter, and Rick Frank
- Economic issues and challenges - Richard Howitt
- Integrating modeling for sustainable groundwater planning - Can Dogrul, Rich Niswonger
Recommendations on groundwater management, prior to actual legislation
- Association of California Water Agencies (ACWA): Recommendations for Achieving Groundwater Sustainability
- California Water Foundation (CWF): Recommendations for Sustainable Groundwater Management
- Groundwater Resources Association (GRA): Modernizing California's Groundwater Management