Hank Johnson
I am a research hydrologist at the USGS Oregon Water Science Center. I have been working on groundwater and water-quality issues regionally and nationally for more than 20 years. My research interests include arid-system hydrology, groundwater and spring systems, and environmental tracers.
Education and Certifications
B.S., Geological Sciences, Virginia Polytechnic Institute & State University, Blacksburg, Virginia, 1992
M.S., Environmental Science and Engineering, Oregon Graduate Institute of Science & Technology, Hillsboro, Oregon, 1996
Science and Products
Filter Total Items: 39
Transport and fate of nitrate at the ground-water/surface-water interface Transport and fate of nitrate at the ground-water/surface-water interface
Although numerous studies of hyporheic exchange and denitrification have been conducted in pristine, high-gradient streams, few studies of this type have been conducted in nutrient-rich, low-gradient streams. This is a particularly important subject given the interest in nitrogen (N) inputs to the Gulf of Mexico and other eutrophic aquatic systems. A combination of hydrologic...
Authors
L.J. Puckett, C. Zamora, H. Essaid, J.T. Wilson, H.M. Johnson, M.J. Brayton, J. R. Vogel
Occurrence and fate of pesticides in four contrasting agricultural settings in the United States Occurrence and fate of pesticides in four contrasting agricultural settings in the United States
Occurrence and fate of 45 pesticides and 40 pesticide degradates were investigated in four contrasting agricultural settings—in Maryland, Nebraska, California, and Washington. Primary crops included corn at all sites, soybeans in Maryland, orchards in California and Washington, and vineyards in Washington. Pesticides and pesticide degradates detected in water samples from all four areas...
Authors
G. V. Steele, H.M. Johnson, Mark W. Sandstrom, P. D. Capel, J.E. Barbash
Factors Affecting the Occurrence and Distribution of Pesticides in the Yakima River Basin, Washington, 2000 Factors Affecting the Occurrence and Distribution of Pesticides in the Yakima River Basin, Washington, 2000
The Yakima River Basin is a major center of agricultural production. With a cultivated area of about 450,000 ha (hectares), the region is an important producer of tree fruit, grapes, hops, and dairy products as well as a variety of smaller production crops. To control pest insects, weeds, and fungal infections, about 146 pesticide active ingredients were applied in various formulations...
Authors
Henry M. Johnson
Environmental Setting of the Granger Drain and DR2 Basins, Washington, 2003-04 Environmental Setting of the Granger Drain and DR2 Basins, Washington, 2003-04
The Granger Drain and DR2 basins are located in the Yakima River basin in south central Washington. These agricultural basins are one of five areas in the United States selected for study as part of the National Water-Quality Assessment Program Agricultural Chemicals: Source, Transport, and Fate Study. The Program is designed to describe water-quality conditions and trends based on...
Authors
Karen L. Payne, Henry M. Johnson, Robert W. Black
Water Quality in the Yakima River Basin, Washington, 1999-2000 Water Quality in the Yakima River Basin, Washington, 1999-2000
This report contains the major findings of a 1999?2000 assessment of water quality in streams and drains in the Yakima River Basin. It is one of a series of reports by the NAWQA Program that present major findings on water resources in 51 major river basins and aquifer systems across the Nation. In these reports, water quality is assessed at many scales?from large rivers that drain lands
Authors
Gregory J. Fuhrer, Jennifer L. Morace, Henry M. Johnson, Joseph F. Rinella, James C. Ebbert, Sandra S. Embrey, Ian R. Waite, Kurt D. Carpenter, Daniel R. Wise, Curt A. Hughes
The Virginia Beach shallow ground-water study The Virginia Beach shallow ground-water study
Introduction Virginia Beach is a rapidly growing city of more than 425,000 people. Sources of fresh water within the city, however, are limited. Prior to 1998, the Virginia Beach Public Utilities Department met the city's water needs by purchasing treated drinking water from the City of Norfolk. Because Norfolk had to meet its own requirements, the amount of water available to Virginia...
Authors
Henry M. Johnson
Nutrient and suspended solids loads, yields, and trends in the non-tidal part of five major river basins in Virginia, 1985-96 Nutrient and suspended solids loads, yields, and trends in the non-tidal part of five major river basins in Virginia, 1985-96
No abstract available.
Authors
H.M. Johnson, D.L. Belval
Uranium deposits of the Moab, Monticello, White Canyon, and Monument Valley districts, Utah and Arizona Uranium deposits of the Moab, Monticello, White Canyon, and Monument Valley districts, Utah and Arizona
No abstract available.
Authors
Henry S. Johnson, William Thordarson
Uranium resources of the Green River and Henry Mountains districts, Utah - a regional synthesis Uranium resources of the Green River and Henry Mountains districts, Utah - a regional synthesis
No abstract available.
Authors
Henry S. Johnson
Uranium resources of the Cedar Mountain area, Emery County, Utah - a regional synthesis Uranium resources of the Cedar Mountain area, Emery County, Utah - a regional synthesis
No abstract available.
Authors
Henry S. Johnson
Uranium resources of the San Rafael district, Emery County, Utah - a regional synthesis Uranium resources of the San Rafael district, Emery County, Utah - a regional synthesis
No abstract available.
Authors
Henry S. Johnson
Uranium resources of the Green River and Henry Mountains districts, Utah : a regional synthesis Uranium resources of the Green River and Henry Mountains districts, Utah : a regional synthesis
No abstract available.
Authors
Henry S. Johnson
Science and Products
Filter Total Items: 39
Transport and fate of nitrate at the ground-water/surface-water interface Transport and fate of nitrate at the ground-water/surface-water interface
Although numerous studies of hyporheic exchange and denitrification have been conducted in pristine, high-gradient streams, few studies of this type have been conducted in nutrient-rich, low-gradient streams. This is a particularly important subject given the interest in nitrogen (N) inputs to the Gulf of Mexico and other eutrophic aquatic systems. A combination of hydrologic...
Authors
L.J. Puckett, C. Zamora, H. Essaid, J.T. Wilson, H.M. Johnson, M.J. Brayton, J. R. Vogel
Occurrence and fate of pesticides in four contrasting agricultural settings in the United States Occurrence and fate of pesticides in four contrasting agricultural settings in the United States
Occurrence and fate of 45 pesticides and 40 pesticide degradates were investigated in four contrasting agricultural settings—in Maryland, Nebraska, California, and Washington. Primary crops included corn at all sites, soybeans in Maryland, orchards in California and Washington, and vineyards in Washington. Pesticides and pesticide degradates detected in water samples from all four areas...
Authors
G. V. Steele, H.M. Johnson, Mark W. Sandstrom, P. D. Capel, J.E. Barbash
Factors Affecting the Occurrence and Distribution of Pesticides in the Yakima River Basin, Washington, 2000 Factors Affecting the Occurrence and Distribution of Pesticides in the Yakima River Basin, Washington, 2000
The Yakima River Basin is a major center of agricultural production. With a cultivated area of about 450,000 ha (hectares), the region is an important producer of tree fruit, grapes, hops, and dairy products as well as a variety of smaller production crops. To control pest insects, weeds, and fungal infections, about 146 pesticide active ingredients were applied in various formulations...
Authors
Henry M. Johnson
Environmental Setting of the Granger Drain and DR2 Basins, Washington, 2003-04 Environmental Setting of the Granger Drain and DR2 Basins, Washington, 2003-04
The Granger Drain and DR2 basins are located in the Yakima River basin in south central Washington. These agricultural basins are one of five areas in the United States selected for study as part of the National Water-Quality Assessment Program Agricultural Chemicals: Source, Transport, and Fate Study. The Program is designed to describe water-quality conditions and trends based on...
Authors
Karen L. Payne, Henry M. Johnson, Robert W. Black
Water Quality in the Yakima River Basin, Washington, 1999-2000 Water Quality in the Yakima River Basin, Washington, 1999-2000
This report contains the major findings of a 1999?2000 assessment of water quality in streams and drains in the Yakima River Basin. It is one of a series of reports by the NAWQA Program that present major findings on water resources in 51 major river basins and aquifer systems across the Nation. In these reports, water quality is assessed at many scales?from large rivers that drain lands
Authors
Gregory J. Fuhrer, Jennifer L. Morace, Henry M. Johnson, Joseph F. Rinella, James C. Ebbert, Sandra S. Embrey, Ian R. Waite, Kurt D. Carpenter, Daniel R. Wise, Curt A. Hughes
The Virginia Beach shallow ground-water study The Virginia Beach shallow ground-water study
Introduction Virginia Beach is a rapidly growing city of more than 425,000 people. Sources of fresh water within the city, however, are limited. Prior to 1998, the Virginia Beach Public Utilities Department met the city's water needs by purchasing treated drinking water from the City of Norfolk. Because Norfolk had to meet its own requirements, the amount of water available to Virginia...
Authors
Henry M. Johnson
Nutrient and suspended solids loads, yields, and trends in the non-tidal part of five major river basins in Virginia, 1985-96 Nutrient and suspended solids loads, yields, and trends in the non-tidal part of five major river basins in Virginia, 1985-96
No abstract available.
Authors
H.M. Johnson, D.L. Belval
Uranium deposits of the Moab, Monticello, White Canyon, and Monument Valley districts, Utah and Arizona Uranium deposits of the Moab, Monticello, White Canyon, and Monument Valley districts, Utah and Arizona
No abstract available.
Authors
Henry S. Johnson, William Thordarson
Uranium resources of the Green River and Henry Mountains districts, Utah - a regional synthesis Uranium resources of the Green River and Henry Mountains districts, Utah - a regional synthesis
No abstract available.
Authors
Henry S. Johnson
Uranium resources of the Cedar Mountain area, Emery County, Utah - a regional synthesis Uranium resources of the Cedar Mountain area, Emery County, Utah - a regional synthesis
No abstract available.
Authors
Henry S. Johnson
Uranium resources of the San Rafael district, Emery County, Utah - a regional synthesis Uranium resources of the San Rafael district, Emery County, Utah - a regional synthesis
No abstract available.
Authors
Henry S. Johnson
Uranium resources of the Green River and Henry Mountains districts, Utah : a regional synthesis Uranium resources of the Green River and Henry Mountains districts, Utah : a regional synthesis
No abstract available.
Authors
Henry S. Johnson