State of California

Basin Characterization Program (Department of Water Resources)

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 (Bulletin 118)").

Example records
Namelegal entityAlternate Namelegal entityCityaddressStreet AddressaddressFull NamepersonObjectididentifierAem Well Info IDidentifierAecom CollarididentifierWell Compl Rpt NumberregistrationWell Compl Rpt Number LegacyregistrationWell Compl Rpt LinkwebsiteLocal Id1identifier
BRADLEY & SONS INCFresno County Environmental Health DepartmentCLOVIS5335 N INDIANOLA AVEBRADLEY & SONS INC81312962WCR2022-008590ALLEN
PRIETO ANTHONY JMadera County Environmental Health DepartmentPRIETO ANTHONY J81212961WCR2022-00849582
J & H DRILLING CO INCCity of Fresno Public Works Engineering Services DFresno4995 E Clinton Way WAYJ & H DRILLING CO INC81112956WCR2022-00827311-PW-1
Use cases

Agricultural Lender Water Access Underwriting

A lender evaluating a farm loan checks whether the property has a permitted, operational well with sufficient yield and depth to support irrigation, reducing reliance on surface water rights that may be curtailed during drought.

Street AddressCityWell UseDepth Completed MPump Test Yield

Drilling Contractor License Verification

A construction insurer or surety bond provider screens a drilling company before issuing coverage by confirming the contractor holds a valid state license and has a documented history of completed well reports across multiple sites.

NameDriller License NumberWell Compl Rpt NumberDate DrilledOswcr Record Type

Property Due Diligence for Water-Dependent Acquisitions

A real estate investment firm acquiring rural or agricultural parcels checks whether existing wells on the property are properly permitted, what aquifer depth they reach, and whether any have been destroyed or abandoned, to assess water supply continuity risk.

Street AddressPermit DateDepth Drilled MDate DestroyedWell Type
Related datasets
Mines (Division of Mining and Reclamation)State of CaliforniaDraft Terrestrial Landscape Intactness for 2026-2027 Integrated Resource PlanState of CaliforniaWater Rights Annual ReportsState of CaliforniaDecentralized Water Reuse Scenarios (San Francisco)U.S. Environmental Protection AgencyEconomically Significant Oil Spill SitesState of California30x30 Conserved Areas, TerrestrialState of CaliforniaPlaces of Use - FishState of OregonDepartment of Rehabilitation OfficesState of CaliforniaPlanning Department Records - ProjectsCity of San FranciscoFishing License Sales AgentsState of CaliforniaState LeasesState of CaliforniaWastewater SurveillanceState of CaliforniaService ProvidersState of CaliforniaImmigration and Customs Enforcement SitesState of CaliforniaPublic SchoolsState of CaliforniaCity Projects and Agencies LobbiedCity of Los AngelesPublic Records Requests (Department of Environmental Quality)State of OregonElectric Load Serving Entities (Investor-Owned and Publicly-Owned Utilities)State of CaliforniaState Environmental Policy Act RegisterState of WashingtonHealth Facilities State Enforcement ActionsState of California