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Groundwater Information Center

Site Map
Groundwater Information Center

Groundwater Basics
Contacts for Groundwater Information in California
Northern Region
North Central Region
South Central Region
Southern Region
DWR Headquarters
Hydrologic Cycle
Relationship between Groundwater and Surface Water
Commonly Used Groundwater Terms
Groundwater Glossary
Water Fact Sheets and Related Links
Water Facts
Watermaster Service Reports
Related Links


Groundwater Management
Methods to Manage Groundwater in California
Local Management through Authority Granted to Local Water Agencies
Local Agencies Types
Local Government Groundwater Ordinances or Joint Powers Agreements
Local Groundwater Ordinances
Counties with ordinances addressing groundwater management
Groundwater Management Model Ordinance
Court Adjudications
Adjudicated groundwater basins
Agencies who manage groundwater from adjudicated groundwater basins
DWR's Role in California's Groundwater Management
DWR groundwater management support activities include:
Integrated Water Resources Information System (IWRIS)
California's Groundwater - Bulletin 118
California Water Plan
Water Use Efficiency
Conjunctive Water Management
Drought Assistance
DWR does not:
DWR does not regulate groundwater quality
DWR does not regulate groundwater use
Groundwater Management Planning and Implementation
Assembly Bill 3030 (AB 3030)
What is AB 3030?
Procedures for Adopting an AB 3030 Plan
Technical components in AB 3030
Senate Bill 1938 (SB 1938)
Status of Groundwater Management in California
Groundwater Related Financial Assistance Programs
AB 303 Local Groundwater Assistance Program
Proposition 13 Groundwater Storage/Recharge Program
Integrated Regional Water Management (IRWM) Program


Bulletin 118
Bulletin 118 - Update 2003
Bulletin 118 - Update 2003 Report
Entire Report
Report by Section
Hydrologic Regions of California
History of Bulletin 118
Water Quality Investigations Report No. 3
Bulletin 118-75
California Water Code Update
Bulletin 118-80
Budget Act of 1999
Bulletin 118 - Update 2003
Statewide and Region-specific Bulletin 118 Reports
Statewide Bulletin 118 reports
Region-specific Bulletin 118 reports
Groundwater Basin Maps & Descriptions
Basins and Subbasins of the North Coast Hydrologic Region
Basins and Subbasins of the San Francisco Bay Hydrologic Region
Basins and Subbasins of the Central Coast Hydrologic Region
Basins and Subbasins of the South Coast Hydrologic Region
Basins and Subbasins of the Sacramento River Hydrologic Region
Basins and Subbasins of the San Joaquin River Hydrologic Region
Basins and Subbasins of the Tulare Lake Hydrologic Region
Basins and Subbasins of the North Lahontan Hydrologic Region
Basins and Subbasins of the South Lahontan Hydrologic Region
Basins and Subbasins of the Colorado River Hydrologic Region
How do I use IWRIS to view groundwater basin and subbasin descriptions?
How do I register?
Map: Basin and Subbasin Boundaries
All Descriptions: Basins and Subbasins
Individual Descriptions: Basins and Subbasins
Download shape files
Read Disclaimer
View metadata

Data
Groundwater Data
Water Data Library (WDL)
Integrated Water Resources Information System (IWRIS)
Groundwater Monitoring
Groundwater Level Monitoring
Northern Region
Data Collection & Management
Sacramento Valley Groundwater Level Monitoring Reports and Maps
Sacramento Valley Groundwater Contour Maps
Sacramento Valley Well Depth Summary Maps
North Central Region
Groundwater Levels
Regional Issues
South Central Region
Statewide Groundwater Level Data
Groundwater Basin Contour Maps
Hydrologic Region Contour Maps
Municipal and Industrial Water Use
DWR Water Use Reports
Available Data
Southern Region
Groundwater Quality Monitoring
Northern Region
North Central Region
South Central Region
Shallow Groundwater and Electrical Conductivity
Southern Region
Water Quality Evaluations
Other Local Data
Groundwater Basin Assessments
Northern Region
North Central Region
South Central Region
Southern Region
Land Subsidence
Northern and North Central Regions
Land Subsidence and Groundwater Elevation Data
South Central Region
Southern Region
Well Completion Reports
Northern Region
North Central Region
South Central Region
Southern Region
Useful Data & Monitoring Links
GAMA
USGS
Geotracker
Envirostor


Wells & More
Wells, Groundwater
Wells
What is a water well?
How do I protect my water well?
Reading Materials
Websites
State Well Numbering System
Well Standards
Well Completion Reports
How to obtain copies of Well Completion Reports on file with DWR
Regional Contacts for Well Completion Reports
Northern Region
North Central Region
South Central Region
Southern Region
DWR Headquarters
Other well forms for well drillers, water well contractors, and well owners
Other Links
What Well Owners Should Know
Well Completion Report
Pump Setting
Groundwater Levels
Well Permitting Agencies
Index to Districts and Counties within DWR Regions
Northern Region
North Central Region
South Central Region
Southern Region
California Water Code
Other Subjects
Land Subsidence
What is land subsidence?
Potential Effects of Land Subsidence
Factors Leading to Subsidence
Land Subsidence Glossary
Areas Most Prone to Subsidence
Monitoring Land Subsidence
Methods Used to Measure Subsidence