Hydrogeochemical processes occurring in contaminated groundwater and aquifer systems may reduce the sensitivity of boron isotopes as an indicator hydraulic fracturing flowback fluids (HFFF) groundwater. In this paper, based on Chaiye-1 well (the first continental shale gas northern Qaidam Basin), hydrogeochemical affecting were analyzed HFFF-contaminated Neogene (NG1 NG2) Quaternary (QG1) aroun...

Abstract An integrated hydrochemical and geophysical study of the saline paleo-water uprising into alluvial aquifer Oltrepò Pavese plain sector (Po Plain, northern Italy) is presented. This involved analysis groundwater, assessment well logs, one-, two- three-dimensional electrical surveys. The studied area was selected for its characteristic hydrogeological setting. strongly conditioned by pre...

25 A numerical study, based on a density-dependent variably saturated groundwater flow model, 26 was conducted to investigate flow and salt transport in a near-shore aquifer under intensified 27 wave conditions caused by offshore storms. Temporally varying onshore hydraulic gradients due 28 to wave set-up were determined as the seaward boundary condition for the simulated aquifer. 29 The result...

Forests are critical water supply regions that increasingly threatened by natural and anthropogenic disturbance. Evaluation of runoff-generating processes within harvested undisturbed headwater catchments provides insight into disturbance impacts on quality drinking treatability. In this study, an extensive hydrologic dataset collected at the experimental Turkey Lakes Watershed (TLW) located Ca...

The debate surrounding the safety of shale gas development in the Appalachian Basin has generated increased awareness of drinking water quality in rural communities. Concerns include the potential for migration of stray gas, metal-rich formation brines, and hydraulic fracturing and/or flowback fluids to drinking water aquifers. A critical question common to these environmental risks is the hydr...

Organic Compounds Associated with Hydraulic Fracturing: Groundwater Composition and Natural Attenuation Potential by Brian D. Drollette Department of Civil and Environmental Engineering Duke University Date:_______________________ Approved: ___________________________ Desiree Plata, Supervisor ___________________________ Lee Ferguson ___________________________ Avner Vengosh An abstract of a th...

[1] Measurements of solute concentrations from previously unstudied watersheds throughout west Siberia suggest that warming and permafrost degradation will likely amplify the transport of dissolved solids to the Kara Sea and adjacent Arctic Ocean. We present concentrations of Ca, K, Mg, Na, Si, Cl , SO4 2 , HCO3 , inferred alkalinity, and total inorganic solutes (TIS) from 94 streams and rivers...