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State
i04 CIMIS Reference Evapotranspiration Zones v1999
State of California —
The ETo Zones Map allows users to view the grass-reference evapotranspiration (ETo) Zones for the State of California. The map was developed by DWR and UC Davis in... -
State
DWR Airborne Electromagnetic (AEM) Surveys Data
State of California —
Statewide AEM Surveys Project Overview The Department of Water Resources’ (DWR’s) Statewide Airborne Electromagnetic (AEM) Surveys Project is funded through... -
State
California's Groundwater Update 2020 (Bulletin 118)
State of California —
California's Groundwater Update 2020 (CalGW) is California's foremost technical publication on groundwater in the state of California. CalGW, formally known as... -
State
i07 Water Shortage Vulnerability Small Water Systems
State of California —
This dataset represents a water shortage vulnerability analysis performed by DWR using Small Water System boundaries pulled from the SWRCB (State Water Resource... -
State
i08 ChicoMonoclineLineaments SacramentoValley
State of California —
This data set is a series of polylines denoting lineaments associated with the Chico Monocline as mapped in USGS Publication MF-1790, "Geologic Map of the Late... -
State
State Water Project Delivery Capability Report (DCR) 2019
State of California —
State Water Project Delivery Capability Report (DCR) 2019 -
State
i15 Parcels SWP
State of California —
This dataset is a compilation of ownership rights represented as parcels owned by the State of California, Department of Water Resources. The associated data are... -
State
SSWP Aquatic Amphibians & Semi-Aquatic Snakes
State of California —
The SSWP Aquatic Amphibians & Semi-Aquatic Snakes Study is one of many relicensing documents for the South SWP (SSWP) Hydropower Project Number 2426. The... -
State
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
i03 Local Maintenance Areas Flood Protection
State of California —
Boundaries of various types of public agencies with responsibilities that include in part or primarily flood control, system maintenance, and improvement. In... -
State
i03 dwr region offices
State of California —
Description for i03_DAU_county_cnty2018 is as follows:Detailed Analysis Unit-(DAU) Convergence via County Boundary cnty18_1 for Cal-Fire, (See metadata for CAL-FIRE... -
State
i12 Canals and Aqueducts local
State of California —
Dataset represents centerlines of major water project canals that are managed by local area government agencies or entities. This dataset does not contain major State... -
State
DWR Delta Modeling User Group (DMUG)
State of California —
Resources for the DWR Delta Modeling User Group California Department of Water Resources, Delta Modeling Section. -
State
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... -
State
2015 Urban Water Management Plans (UWMPs)
State of California —
2015 Urban Water Management Plans (UWMPs) -
State
i03 Water Plan Planning Areas
State of California —
Description for i03_DAU_county_cnty2018 is as follows:Detailed Analysis Unit-(DAU) Convergence via County Boundary cnty18_1 for Cal-Fire, (See metadata for CAL-FIRE... -
State
i03 Hydrologic Regions
State of California —
Description for i03_DAU_county_cnty2018 is as follows:Detailed Analysis Unit-(DAU) Convergence via County Boundary cnty18_1 for Cal-Fire, (See metadata for CAL-FIRE... -
State
South Delta Monitoring Special Studies (MSS) Modeling Inputs and Selected Outputs
State of California —
This dataset includes the MSS version of model inputs and outputs for the Delta Simulation Model 2 and Bay-Delta SCHISM. To perform DSM2 simulation and... -
State
Airborne electromagnetic (AEM) Pilot Studies
State of California —
Airborne electromagnetic (AEM) geophysical data were collected in California as a part of AEM pilot studies. The purpose of the AEM pilot studies was to inform the...