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TRE ALTAMIRA InSAR Subsidence Data
State of California —
This dataset represents measurements of vertical ground surface displacement in more than 200 of the high-use and populated groundwater basins across the State of... -
State
i08 GroundwaterLevelChange Contours
State of California —
This dataset depicts contours of estimated change in groundwater piezometric surfaces in the unconfined or uppermost semi-confined aquifers, between two specified... -
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California Groundwater Elevation Monitoring (CASGEM) Program
State of California —
Since 2009, the California Statewide Groundwater Elevation Monitoring (CASGEM) Program has tracked seasonal and long-term groundwater elevation trends in groundwater... -
State
Groundwater Basin Boundary Descriptions - Central Coast Region (3-XXX Basins)
State of California —
This dataset includes the official groundwater basin boundary descriptions for California's 515 groundwater basins. To make locating descriptions easier, they have... -
State
DSM2 2022.01 Historical Update
State of California —
DSM2 historical data updated through December 31, 2021 -
State
Groundwater Basin Boundary Descriptions - San Diego Region (9-XXX Basins)
State of California —
This dataset includes the official groundwater basin boundary descriptions for California's 515 groundwater basins. To make locating descriptions easier, they have... -
State
DCP Cultural Resources
State of California —
The DCP Cultural Resources Study is one of many relicensing documents for the Devil Canyon Project (DCP) Hydropower Project Number 14797. The California Department of... -
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Water Loss Audit Data From Urban Retail Water Suppliers (Superseded)
State of California —
September 2025 Note: This original 2019 data is superseded by a more recent data which captures newer submissions and resubmissions of older data reports. Link to new... -
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DWR's Basin Characterization Program
State of California —
DWR has a long history of studying and characterizing California’s groundwater aquifers as a part of California’s Groundwater (Bulletin 118). California's Groundwater... -
State
i16 Census BlockGroup DisadvantagedCommunities 2023
State of California —
The IRWM web based DAC mapping tool uses this GIS layer. Created by joining ACS 2019-2023 5 year estimates to the Census 2020 Block Group feature class. The... -
State
SSWP Tribal Resources
State of California —
The SSWP Tribal Resources Study is one of many relicensing documents for the South SWP (SSWP) Hydropower Project Number 2426. The California Department of Water... -
State
Dry Well Reporting System Data
State of California —
In California, water systems serving one (1) to 15 households are regulated at the county level. Counties vary in their practices, but rarely do counties collect data... -
State
i08 C2VSimFG StreamNodes WithBudgets
State of California —
The stream network simulated in C2VSimFG consists of 4,634 stream nodes that make up 110 stream reaches. The stream nodes correspond to groundwater node locations... -
State
Paleo-Dendrochronological "Tree-Ring" Hydroclimatic Reconstructions for Northern and Southern California River Basins
State of California —
Background Tree-ring chronologies allow assessment of hydrologic variability over centuries to millennia, gives historic context for assessing recent droughts, and... -
State
i16 Census County EconomicallyDistressedAreas 2023
State of California —
This is a copy of the statewide County GIS Tiger file. Created by joining ACS 2019-2023 5 year estimates to the 2020 Census Counties feature class, and the 2023... -
State
VTools and PyDSS (Python 2.7 64 bit only)
State of California —
VTools for Python 2.7 64 bit windows VTools is an open-source program, and the source codes are available at GitHub: https://github.com/CADWRDeltaModeling/vtools....