Neil M Dubrovsky (Former Employee)
Science and Products
Filter Total Items: 29
Environmental setting of the San Joaquin-Tulare basins, California Environmental setting of the San Joaquin-Tulare basins, California
The National Water-Quality Assessment Program for the San Joaquin-Tulare Basins began in 1991 to study the effects of natural and anthropogenic influences on the quality of ground water, surface water, biology, and ecology. The San Joaquin-Tulare Basins study unit, which covers approximately 31,200 square miles in central California, is made up of the San Joaquin Valley, the eastern...
Authors
JoAnn A. Gronberg, Neil M. Dubrovsky, Charles R. Kratzer, Joseph L. Domagalski, Larry R. Brown, Karen R. Burow
Occurrence of nitrate and pesticides in ground water beneath three agricultural land-use settings in the eastern San Joaquin Valley, California, 1993-1995 Occurrence of nitrate and pesticides in ground water beneath three agricultural land-use settings in the eastern San Joaquin Valley, California, 1993-1995
The processes that affect nitrate and pesticide occurrence may be better understood by relating ground-water quality to natural and human factors in the context of distinct, regionally extensive, land- use settings. This study assesses nitrate and pesticide occurrence in ground water beneath three agricultural land-use settings in the eastern San Joaquin Valley, California. Water samples...
Authors
Karen R. Burow, Jennifer L. Shelton, Neil M. Dubrovsky
Deducing the distribution of terminal electron-accepting processes in hydrologically diverse groundwater systems Deducing the distribution of terminal electron-accepting processes in hydrologically diverse groundwater systems
The distribution of microbially mediated terminal electron-accepting processes (TEAPs( was investigated in four hydrologically diverse groundwater systems by considering patterns of electron acceptor (nitrate, sulfate) consumption, intermediate product (hydrogen (H2)) concentrations, and final product (ferrous iron, sulfide, and methane) production. In each hydrologic system a...
Authors
Francis H. Chapelle, Peter B. McMahon, Neil M. Dubrovsky, Roger F. Fujii, Edward T. Oaksford, Don A. Vroblesky
Inputs of the Dormant-Spray Pesticide, Diazinon, to the San Joaquin River, California, February 1993 Inputs of the Dormant-Spray Pesticide, Diazinon, to the San Joaquin River, California, February 1993
INTRODUCTION The objective of the National Water Quality Assessment (NAWQA) Program of the U.S. Geological Survey is to describe the status and trends of the Nation's water quality with respect to natural features of the environment and human activities or land-use. Pesticides are a major water-quality issue in the San Joaquin Valley of California (fig. 1), and pesticide residues may be
Authors
Joseph L. Domagalski, Neil M. Dubrovsky, Charles R. Kratzer
Geochemical relations and distribution of selected trace elements in ground water of the northern part of the western San Joaquin Valley, California Geochemical relations and distribution of selected trace elements in ground water of the northern part of the western San Joaquin Valley, California
Water samples were collected from 44 wells in the northern part of the western San Joaquin Valley, California, between March and July 1985 to assess the geochemical relations and distribution of major ions and selected trace-element concentrations in ground water of the area. The ground-waterflow system consists of a semiconfined zone and a confined zone separated by a regionally...
Authors
Neil M. Dubrovsky, John M. Neil, Mary C. Welker, Kristin D. Evenson
Non-USGS Publications**
Domagalski , J.L., Dubrovsky, N.M., and Kratzer, C.R., 1997, Pesticides in the San Joaquin River, California: Inputs from dormant sprayed orchards: Journal of Environmental Quality, v. 26, p. 454-465.
Dubrovsky, N.M., Burow, K.R., and Gronberg, J.M., 1995, Effects of two contrasting agricultural land uses on shallow ground water quality in the San Joaquin Valley, California -- Design and preliminary interpretation, in Wagner, B.J., Illangasekare, T.H., and Jensen, K.H., eds., Models for assessing and monitoring groundwater quality: Wallingford, Oxfordshire, U.K., International Association of Hydrological Sciences, publication 227, proceedings, p. 49-58.
Deverel, S.J., Fio, J.L., Dubrovsky, N.M., 1994, Distribution and mobility of selenium in groundwater in the western San Joaquin Valley of California in Selenium in the Environment, Benson, S. and Frankenburger, W. (eds). Marcel Decker, New York.
White, Arthur, and N. M. Dubrovsky, 1994, Chemical Oxidation-Reduction Controls on Selenium Mobility in Groundwater Systems, in Selenium in the Environment, Chapter: 8, Publisher: Marcel Dekker, INc, Editors: W.T. Frankenberger, Jr, and S.M. Benson (eds, pp.185-222)
Dubrovsky, Neil M., Steven Deveral, and R.J. Gilliom, 1993, Multiscale approach to regional ground-water quality assessment: Selenium in the San Joaquin Valley, California, Editors: William M. Alley, in book: Regional Groundwater Quality, Chapter: 22, Van Nostrand Reinhold, , pp.537-562
Domagalski, J.L., N.M. Dubrovsky, 1991, Pesticide Residues in Ground Water of the San Joaquin Valley, California, Journal of Hydrology, 130 (1-4), p 229-338.
Dubrovsky, N.M., Neil, J.M., Welker, M.C., and Evenson, K.D., 1991, Geochemical relations and distribution of selected trace elements in ground water of the northern part of the western San Joaquin Valley, California: U.S. Geological Survey Water Supply Paper 2380.
Dubrovsky, N.M., Neil, J.M., Fujii, R, Oremland, R.S., and Hollibaugh, J.T., 1990, Influence of redox potential on selenium distribution in ground water, Mendota, western San Joaquin Valley, California: U.S. Geological Survey Open-File Report 90-138, 24p.
Dubrovsky, N.M., and Steven Deverel, 1989, Selenium in Ground Water of the Central Part of the Western Valley, Editors: Robert J. Gilliom, in Preliminary assessment of sources, distribution, and mobility of selenium in the San Joaquin Valley, California, Water-Resources Investigations Report 88-4186, pp.32
Dubrovsky, Neil M., John A. Cherry, E.J. Reardon, A.J. Vivyurka, 1985, Geochemical evolution of inactive pyritic tailings in the Elliot Lake uranium district, Canadian Geotechnical Journal, p 110-1228.
Dubrovsky, N. M.,K.A. Morin, J.A. Cherry, D.J.A. Smyth, 1984, Uranium tailings acidification and subsurface contaminant migration in a sand aquifer. Water Pollution Research Journal of Canada
**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.
Science and Products
Filter Total Items: 29
Environmental setting of the San Joaquin-Tulare basins, California Environmental setting of the San Joaquin-Tulare basins, California
The National Water-Quality Assessment Program for the San Joaquin-Tulare Basins began in 1991 to study the effects of natural and anthropogenic influences on the quality of ground water, surface water, biology, and ecology. The San Joaquin-Tulare Basins study unit, which covers approximately 31,200 square miles in central California, is made up of the San Joaquin Valley, the eastern...
Authors
JoAnn A. Gronberg, Neil M. Dubrovsky, Charles R. Kratzer, Joseph L. Domagalski, Larry R. Brown, Karen R. Burow
Occurrence of nitrate and pesticides in ground water beneath three agricultural land-use settings in the eastern San Joaquin Valley, California, 1993-1995 Occurrence of nitrate and pesticides in ground water beneath three agricultural land-use settings in the eastern San Joaquin Valley, California, 1993-1995
The processes that affect nitrate and pesticide occurrence may be better understood by relating ground-water quality to natural and human factors in the context of distinct, regionally extensive, land- use settings. This study assesses nitrate and pesticide occurrence in ground water beneath three agricultural land-use settings in the eastern San Joaquin Valley, California. Water samples...
Authors
Karen R. Burow, Jennifer L. Shelton, Neil M. Dubrovsky
Deducing the distribution of terminal electron-accepting processes in hydrologically diverse groundwater systems Deducing the distribution of terminal electron-accepting processes in hydrologically diverse groundwater systems
The distribution of microbially mediated terminal electron-accepting processes (TEAPs( was investigated in four hydrologically diverse groundwater systems by considering patterns of electron acceptor (nitrate, sulfate) consumption, intermediate product (hydrogen (H2)) concentrations, and final product (ferrous iron, sulfide, and methane) production. In each hydrologic system a...
Authors
Francis H. Chapelle, Peter B. McMahon, Neil M. Dubrovsky, Roger F. Fujii, Edward T. Oaksford, Don A. Vroblesky
Inputs of the Dormant-Spray Pesticide, Diazinon, to the San Joaquin River, California, February 1993 Inputs of the Dormant-Spray Pesticide, Diazinon, to the San Joaquin River, California, February 1993
INTRODUCTION The objective of the National Water Quality Assessment (NAWQA) Program of the U.S. Geological Survey is to describe the status and trends of the Nation's water quality with respect to natural features of the environment and human activities or land-use. Pesticides are a major water-quality issue in the San Joaquin Valley of California (fig. 1), and pesticide residues may be
Authors
Joseph L. Domagalski, Neil M. Dubrovsky, Charles R. Kratzer
Geochemical relations and distribution of selected trace elements in ground water of the northern part of the western San Joaquin Valley, California Geochemical relations and distribution of selected trace elements in ground water of the northern part of the western San Joaquin Valley, California
Water samples were collected from 44 wells in the northern part of the western San Joaquin Valley, California, between March and July 1985 to assess the geochemical relations and distribution of major ions and selected trace-element concentrations in ground water of the area. The ground-waterflow system consists of a semiconfined zone and a confined zone separated by a regionally...
Authors
Neil M. Dubrovsky, John M. Neil, Mary C. Welker, Kristin D. Evenson
Non-USGS Publications**
Domagalski , J.L., Dubrovsky, N.M., and Kratzer, C.R., 1997, Pesticides in the San Joaquin River, California: Inputs from dormant sprayed orchards: Journal of Environmental Quality, v. 26, p. 454-465.
Dubrovsky, N.M., Burow, K.R., and Gronberg, J.M., 1995, Effects of two contrasting agricultural land uses on shallow ground water quality in the San Joaquin Valley, California -- Design and preliminary interpretation, in Wagner, B.J., Illangasekare, T.H., and Jensen, K.H., eds., Models for assessing and monitoring groundwater quality: Wallingford, Oxfordshire, U.K., International Association of Hydrological Sciences, publication 227, proceedings, p. 49-58.
Deverel, S.J., Fio, J.L., Dubrovsky, N.M., 1994, Distribution and mobility of selenium in groundwater in the western San Joaquin Valley of California in Selenium in the Environment, Benson, S. and Frankenburger, W. (eds). Marcel Decker, New York.
White, Arthur, and N. M. Dubrovsky, 1994, Chemical Oxidation-Reduction Controls on Selenium Mobility in Groundwater Systems, in Selenium in the Environment, Chapter: 8, Publisher: Marcel Dekker, INc, Editors: W.T. Frankenberger, Jr, and S.M. Benson (eds, pp.185-222)
Dubrovsky, Neil M., Steven Deveral, and R.J. Gilliom, 1993, Multiscale approach to regional ground-water quality assessment: Selenium in the San Joaquin Valley, California, Editors: William M. Alley, in book: Regional Groundwater Quality, Chapter: 22, Van Nostrand Reinhold, , pp.537-562
Domagalski, J.L., N.M. Dubrovsky, 1991, Pesticide Residues in Ground Water of the San Joaquin Valley, California, Journal of Hydrology, 130 (1-4), p 229-338.
Dubrovsky, N.M., Neil, J.M., Welker, M.C., and Evenson, K.D., 1991, Geochemical relations and distribution of selected trace elements in ground water of the northern part of the western San Joaquin Valley, California: U.S. Geological Survey Water Supply Paper 2380.
Dubrovsky, N.M., Neil, J.M., Fujii, R, Oremland, R.S., and Hollibaugh, J.T., 1990, Influence of redox potential on selenium distribution in ground water, Mendota, western San Joaquin Valley, California: U.S. Geological Survey Open-File Report 90-138, 24p.
Dubrovsky, N.M., and Steven Deverel, 1989, Selenium in Ground Water of the Central Part of the Western Valley, Editors: Robert J. Gilliom, in Preliminary assessment of sources, distribution, and mobility of selenium in the San Joaquin Valley, California, Water-Resources Investigations Report 88-4186, pp.32
Dubrovsky, Neil M., John A. Cherry, E.J. Reardon, A.J. Vivyurka, 1985, Geochemical evolution of inactive pyritic tailings in the Elliot Lake uranium district, Canadian Geotechnical Journal, p 110-1228.
Dubrovsky, N. M.,K.A. Morin, J.A. Cherry, D.J.A. Smyth, 1984, Uranium tailings acidification and subsurface contaminant migration in a sand aquifer. Water Pollution Research Journal of Canada
**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.