Richard Healy (Former Employee)
Science and Products
Healy, R.W., and Essaid, H.I., 2012, VS2DI: Model use, calibration, and validation. Transactions of the ASABE, v. 55, no. 3, p. 1249-1260.
Heilweil, V., Healy, R.W., and Harris, R., 2012, Noble gases and coupled heat/fluid flow modeling for evaluating hydrogeologic conditions of volcanic island aquifers. Journal of Hydrology, v. 464-465, p. 309-327, DOI:10.1016/j.jhydrol.2012.07.019.
Modeling variably saturated subsurface solute transport with MODFLOW-UZF and MT3DMS Modeling variably saturated subsurface solute transport with MODFLOW-UZF and MT3DMS
The MT3DMS groundwater solute transport model was modified to simulate solute transport in the unsaturated zone by incorporating the unsaturated-zone flow (UZF1) package developed for MODFLOW. The modified MT3DMS code uses a volume-averaged approach in which Lagrangian-based UZF1 fluid fluxes and storage changes are mapped onto a fixed grid. Referred to as UZF-MT3DMS, the linked model...
Authors
Eric D. Morway, Richard G. Niswonger, Christian D. Langevin, Ryan T. Bailey, Richard W. Healy
Deep subsurface drip irrigation using coal-bed sodic water: part II. geochemistry Deep subsurface drip irrigation using coal-bed sodic water: part II. geochemistry
Waters with low salinity and high sodium adsorption ratios (SARs) present a challenge to irrigation because they degrade soil structure and infiltration capacity. In the Powder River Basin of Wyoming, such low salinity (electrical conductivity, EC 2.1 mS cm-1) and high-SAR (54) waters are co-produced with coal-bed methane and some are used for subsurface drip irrigation(SDI). The SDI...
Authors
Carleton R. Bern, George N. Breit, Richard W. Healy, John W. Zupancic
Deep subsurface drip irrigation using coal-bed sodic water: part I. water and solute movement Deep subsurface drip irrigation using coal-bed sodic water: part I. water and solute movement
Water co-produced with coal-bed methane (CBM) in the semi-arid Powder River Basin of Wyoming and Montana commonly has relatively low salinity and high sodium adsorption ratios that can degrade soil permeability where used for irrigation. Nevertheless, a desire to derive beneficial use from the water and a need to dispose of large volumes of it have motivated the design of a deep...
Authors
Carleton R. Bern, George N. Breit, Richard W. Healy, John W. Zupancic, Richard Hammack
Influence of a thin veneer of low-hydraulic-conductivity sediment on modelled exchange between river water and groundwater in response to induced infiltration Influence of a thin veneer of low-hydraulic-conductivity sediment on modelled exchange between river water and groundwater in response to induced infiltration
A thin layer of fine‐grained sediment commonly is deposited at the sediment–water interface of streams and rivers during low‐flow conditions, and may hinder exchange at the sediment–water interface similar to that observed at many riverbank‐filtration (RBF) sites. Results from a numerical groundwater‐flow model indicate that a low‐permeability veneer reduces the contribution of river...
Authors
Donald O. Rosenberry, Richard W. Healy
Tracking solutes and water from subsurface drip irrigation application of coalbed methane-produced waters, Powder River Basin, Wyoming Tracking solutes and water from subsurface drip irrigation application of coalbed methane-produced waters, Powder River Basin, Wyoming
One method to beneficially use water produced from coalbed methane (CBM) extraction is subsurface drip irrigation (SDI) of croplands. In SDI systems, treated CBM water (injectate) is supplied to the soil at depth, with the purpose of preventing the buildup of detrimental salts near the surface. The technology is expanding within the Powder River Basin, but little research has been...
Authors
Mark A. Engle, Carleton R. Bern, Richard W. Healy, J.I. Sams, J.W. Zupancic, K.T. Schroeder
Groundwater chemistry near an impoundment for produced water, Powder River Basin, Wyoming, USA Groundwater chemistry near an impoundment for produced water, Powder River Basin, Wyoming, USA
The Powder River Basin is one of the largest producers of coal-bed natural gas (CBNG) in the United States. An important environmental concern in the Basin is the fate of the large amounts of groundwater extracted during CBNG production. Most of this produced water is disposed of in unlined surface impoundments. A 6-year study of groundwater flow and water chemistry at one impoundment...
Authors
R. W. Healy, T.T. Bartos, C. A. Rice, M.P. McKinley, B. D. Smith
Non-USGS Publications**
**Disclaimer: The views expressed in Non-USGS publications are those of the author and do not represent the views of the USGS, Department of the Interior, or the U.S. Government.
VS2DRTI - A Graphical Software Package for Simulating Water Flow, Heat Transport, and Reactive Solute Transport VS2DRTI - A Graphical Software Package for Simulating Water Flow, Heat Transport, and Reactive Solute Transport
VS2DRTI is a graphical software package for simulating water flow, heat transport, and reactive solute transport in variably saturated porous media.
VS2DI Version 1.3 VS2DI Version 1.3
VS2DI is a graphical software package for simulating fluid flow and solute or energy transport in variably saturated porous media.
Science and Products
Healy, R.W., and Essaid, H.I., 2012, VS2DI: Model use, calibration, and validation. Transactions of the ASABE, v. 55, no. 3, p. 1249-1260.
Heilweil, V., Healy, R.W., and Harris, R., 2012, Noble gases and coupled heat/fluid flow modeling for evaluating hydrogeologic conditions of volcanic island aquifers. Journal of Hydrology, v. 464-465, p. 309-327, DOI:10.1016/j.jhydrol.2012.07.019.
Modeling variably saturated subsurface solute transport with MODFLOW-UZF and MT3DMS Modeling variably saturated subsurface solute transport with MODFLOW-UZF and MT3DMS
The MT3DMS groundwater solute transport model was modified to simulate solute transport in the unsaturated zone by incorporating the unsaturated-zone flow (UZF1) package developed for MODFLOW. The modified MT3DMS code uses a volume-averaged approach in which Lagrangian-based UZF1 fluid fluxes and storage changes are mapped onto a fixed grid. Referred to as UZF-MT3DMS, the linked model...
Authors
Eric D. Morway, Richard G. Niswonger, Christian D. Langevin, Ryan T. Bailey, Richard W. Healy
Deep subsurface drip irrigation using coal-bed sodic water: part II. geochemistry Deep subsurface drip irrigation using coal-bed sodic water: part II. geochemistry
Waters with low salinity and high sodium adsorption ratios (SARs) present a challenge to irrigation because they degrade soil structure and infiltration capacity. In the Powder River Basin of Wyoming, such low salinity (electrical conductivity, EC 2.1 mS cm-1) and high-SAR (54) waters are co-produced with coal-bed methane and some are used for subsurface drip irrigation(SDI). The SDI...
Authors
Carleton R. Bern, George N. Breit, Richard W. Healy, John W. Zupancic
Deep subsurface drip irrigation using coal-bed sodic water: part I. water and solute movement Deep subsurface drip irrigation using coal-bed sodic water: part I. water and solute movement
Water co-produced with coal-bed methane (CBM) in the semi-arid Powder River Basin of Wyoming and Montana commonly has relatively low salinity and high sodium adsorption ratios that can degrade soil permeability where used for irrigation. Nevertheless, a desire to derive beneficial use from the water and a need to dispose of large volumes of it have motivated the design of a deep...
Authors
Carleton R. Bern, George N. Breit, Richard W. Healy, John W. Zupancic, Richard Hammack
Influence of a thin veneer of low-hydraulic-conductivity sediment on modelled exchange between river water and groundwater in response to induced infiltration Influence of a thin veneer of low-hydraulic-conductivity sediment on modelled exchange between river water and groundwater in response to induced infiltration
A thin layer of fine‐grained sediment commonly is deposited at the sediment–water interface of streams and rivers during low‐flow conditions, and may hinder exchange at the sediment–water interface similar to that observed at many riverbank‐filtration (RBF) sites. Results from a numerical groundwater‐flow model indicate that a low‐permeability veneer reduces the contribution of river...
Authors
Donald O. Rosenberry, Richard W. Healy
Tracking solutes and water from subsurface drip irrigation application of coalbed methane-produced waters, Powder River Basin, Wyoming Tracking solutes and water from subsurface drip irrigation application of coalbed methane-produced waters, Powder River Basin, Wyoming
One method to beneficially use water produced from coalbed methane (CBM) extraction is subsurface drip irrigation (SDI) of croplands. In SDI systems, treated CBM water (injectate) is supplied to the soil at depth, with the purpose of preventing the buildup of detrimental salts near the surface. The technology is expanding within the Powder River Basin, but little research has been...
Authors
Mark A. Engle, Carleton R. Bern, Richard W. Healy, J.I. Sams, J.W. Zupancic, K.T. Schroeder
Groundwater chemistry near an impoundment for produced water, Powder River Basin, Wyoming, USA Groundwater chemistry near an impoundment for produced water, Powder River Basin, Wyoming, USA
The Powder River Basin is one of the largest producers of coal-bed natural gas (CBNG) in the United States. An important environmental concern in the Basin is the fate of the large amounts of groundwater extracted during CBNG production. Most of this produced water is disposed of in unlined surface impoundments. A 6-year study of groundwater flow and water chemistry at one impoundment...
Authors
R. W. Healy, T.T. Bartos, C. A. Rice, M.P. McKinley, B. D. Smith
Non-USGS Publications**
**Disclaimer: The views expressed in Non-USGS publications are those of the author and do not represent the views of the USGS, Department of the Interior, or the U.S. Government.
VS2DRTI - A Graphical Software Package for Simulating Water Flow, Heat Transport, and Reactive Solute Transport VS2DRTI - A Graphical Software Package for Simulating Water Flow, Heat Transport, and Reactive Solute Transport
VS2DRTI is a graphical software package for simulating water flow, heat transport, and reactive solute transport in variably saturated porous media.
VS2DI Version 1.3 VS2DI Version 1.3
VS2DI is a graphical software package for simulating fluid flow and solute or energy transport in variably saturated porous media.