Jun 17, 2024

Spectral characterization of dissolved organic matter in groundwater to assess mixing with oil-field water near selected oil fields, southern California

Summary of Hansen and others (2023)

Jun 17, 2024

Fluid Migration Pathways to Groundwater in Mature Oil Fields: Exploring the roles of water injection/production and oil-well integrity, Lost Hills and South Belridge Oil Fields

Summary of McMahon and others (2023).

Mar 29, 2023

Occurrence of water and thermogenic gas from oil-bearing formations in groundwater near the Orcutt Oil Field, California, USA

Summary of Anders and others (2022)

Mar 29, 2023

Groundwater quality near the Montebello Oil Field, Los Angeles County, California

Summary of Stanton and others (2023)

Mar 28, 2023

Geologic controls on groundwater salinity reversal in North Coles Levee Oil Field, southern San Joaquin Valley, California, USA

Summary of Flowers and others (2022)

Mar 28, 2023

Mapping aquifer salinity gradients and effects of oil field produced water disposal using geophysical logs: Elk Hills, Buena Vista and Coles Levee Oil Fields, San Joaquin Valley, California

Summary of Gillespie and others (2022)

Mar 10, 2022

Poso Creek Oil Field

Summary of findings from Stephens and others, 2021

Dec 30, 2021

Noble Gases Document Where Air has been Injected into the Subsurface

Summary of findings from Karolyte and others, 2021 and Tyne and others, 2021

Dec 7, 2021

3D Maps of Subsurface Salinity in the Montebello Oil Field, Los Angeles County

Summary of findings from Terry and others, 2021.

Sep 1, 2021

Patterns in the Risks to Groundwater Quality in the Vicinity of California Oil Fields

Summary of findings from McMahon and others, 2021

Jul 1, 2021

Oxnard Oil Field

Summary of findings from Rosecrans and others, 2021

Dec 11, 2020

Shallow Groundwater Salinity in the Western San Joaquin Valley

Summary of findings from Ball and others, 2020

Jan 14, 2020

The Case of Disappearing Radium--Why You Can't Always Trace Chemicals in Oil-Field Water Along Flowpaths But Still See Effects in Groundwater

Summary of findings from McMahon and others, 2019

Jan 14, 2020

Vertical Profile Data from Wells Document Oil-Field Waters Migrating From Surface Sump Ponds and Injection Sites

Summary of one set of findings from Gillespie and others, 2019

Oct 31, 2019

Methane in Los Angeles Area Groundwater from Microbial Sources

Manager's summary of Kulongoski and others, 2018

Oct 30, 2019

Salinity within Geologic Formations Can Vary Considerably

Manager's summary of Stephens and others, 2018

Oct 29, 2019

Fluids around Hydraulically Fractured Wells Revert to Formation Water Chemistry Soon after Fracturing

Key Finding in McMahon and others (2018)

Oct 28, 2019

Geochemical Patterns in Oil Field Fluids Vary Dramatically From Field to Field

Manager's summary of McMahon and others (2018)

Oct 27, 2019

224Radium Is the Predominant Radium Isotope in California Oil Field Waters

Key Finding in McMahon and others (2018)