Relative risk of groundwater-quality degradation near California (USA) oil fields estimated from 3H, 14C, and 4He

McMahon, Peter B.; Landon, Matthew K.; Davis, Tracy A.; Wright, Michael T.; Rosecrans, Celia Z.; Anders, Robert A.; Land, Michael; Kulongoski, Justin T.; Hunt, Andrew G.

doi:10.1016/j.apgeochem.2021.105024

Applied Geochemistry

2021

DOI: 10.1016/j.apgeochem.2021.105024

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Relative risk of groundwater-quality degradation near California (USA) oil fields estimated from 3H, 14C, and 4He

Peter B. McMahon

Matthew K. Landon

Tracy A. Davis

et al.

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Cited by 5 publications

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The role of fault pathways for modern and deep recharge to a semi-confined aquifer: revised analysis of modern water leakage pathways in the Davis wellfield, Memphis, Tennessee, USA

Towell,

Larsen,

Schoefernacker

et al. 2024

Environ Earth Sci

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Hydrologic tracer, borehole log and geophysical data provide new insight into recharge sources and pathways to the semi-confined Memphis aquifer in the Davis wellfield, Memphis, Tennessee, U.S.A. New data and recent studies highlight the importance of faults as potential pathways for the migration of modern water into the Memphis aquifer, an important regional public, industrial, and agricultural water supply. Geochemical and environmental tracer data collected over the past 28 years, combined with hydrologic, stratigraphic, and structural data, were used to evaluate changes in water quality and different recharge pathways to the Memphis aquifer. Assessment of stratigraphic and structural relationships argue for the wellfield being bound by a fault along the bluff line (west) and another fault or faults along the eastern and southeastern margins. Modern water recharge (< 60 years old) occurs through the fault along the western boundary of the wellfield, whereas modern water and, seasonally, deep-seated (helium-bearing) fluids recharge along the fault on the southeastern margin. Each recharge source and pathway present different vulnerabilities, suggesting that the role of faults in wellfields within active tectonic regions needs to be assessed.

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The role of fault pathways for modern and deep recharge to a semi-confined aquifer: revised analysis of modern water leakage pathways in the Davis wellfield, Memphis, Tennessee, USA

Towell,

Larsen,

Schoefernacker

et al. 2024

Environ Earth Sci

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show abstract

Land-use interactions, Oil-Field infrastructure, and natural processes control hydrocarbon and arsenic concentrations in groundwater, Poso Creek Oil Field, California, USA

McMahon,

Landon,

Stephens

et al. 2024

Applied Geochemistry

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

Anders

Landon

McMahon

et al. 2022

Journal of Hydrology: Regional Studies

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Relative risk of groundwater-quality degradation near California (USA) oil fields estimated from 3H, 14C, and 4He

Cited by 5 publications

References 72 publications

The role of fault pathways for modern and deep recharge to a semi-confined aquifer: revised analysis of modern water leakage pathways in the Davis wellfield, Memphis, Tennessee, USA

The role of fault pathways for modern and deep recharge to a semi-confined aquifer: revised analysis of modern water leakage pathways in the Davis wellfield, Memphis, Tennessee, USA

Land-use interactions, Oil-Field infrastructure, and natural processes control hydrocarbon and arsenic concentrations in groundwater, Poso Creek Oil Field, California, USA

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

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