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Dive into our publications and explore the science from the Environmental Health Program (Toxic Substances Hydrology and Contaminant Biology).

GeoHEALTH-USGS Newsletter

The GeoHEALTH–USGS Newsletter—published since 2004—provides information on USGS science activities pertinent to safeguarding the health of fish, wildlife, domesticated animals, and people from environmental exposures to contaminants and pathogens.

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USGS scientist sampling tap water from a public water supply

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January 1, 1998

Improving ground-water flow model calibration with the Advective-Transport Observation (ADV) Package to MODFLOWP

No abstract available.

Authors

Evan R. Anderman, M. C. Hill

Ecosystems Mission Area, Toxic Substances Hydrology, Environmental Health Program

January 1, 1998

Modeling solute-transport and biodegradation with BIOMOC

No abstract available.

Authors

Hedeff I. Essaid, Barbara A. Bekins

Ecosystems Mission Area, Toxic Substances Hydrology, Environmental Health Program

January 1, 1998

Occurrence of cotton pesticides in surface water of the Mississippi Embayment

No abstract available.

Authors

E. Michael Thurman, Lisa R. Zimmerman, Elisabeth A. Scribner, Richard H. Coupe

Ecosystems Mission Area, Toxic Substances Hydrology, Environmental Health Program, Kansas Water Science Center

January 1, 1998

Spatial variation in saturated hydraulic conductivity of sediments at a crude-oil spill site near Bemidji, Minnesota

Saturated hydraulic conductivity of aquifer sediments at a crude-oil spill research site near Bemidji, Minnesota were examined using pneumatically-induced head-difference tests and packer/vacuum system tests. Results from slug tests on 58 wells show that hydraulic conductivity varies both horizontally and vertically in the range from about 10-7 to 10-4 meters per second (m/s), with a median of 7.2

Authors

Michael L. Strobel, G. N. Delin, Carissa J. Munson

Water Resources Mission Area, Ecosystems Mission Area, Toxic Substances Hydrology, Environmental Health Program, Upper Midwest Environmental Sciences Center, Upper Midwest Water Science Center

January 1, 1998

Geomorphology, flood-plain tailings, and metal transport in the upper Clark Fork Valley, Montana

No abstract available.

Authors

J. Dungan Smith, J. H. Lambing, D. A. Nimick, Charles Parrett, Michael Ramey, William Schafer

Ecosystems Mission Area, Toxic Substances Hydrology, Environmental Health Program

January 1, 1998

Delineation of contributing areas to selected public-supply wells, western Cape Cod, Massachusetts

No abstract available.

Authors

John P. Masterson, Donald A. Walter, Denis R. LeBlanc

Water Resources Mission Area, Ecosystems Mission Area, Toxic Substances Hydrology, Environmental Health Program, New England Water Science Center

January 1, 1998

Application of nonlinear-regression methods to a ground-water flow model of the Albuquerque Basin, New Mexico

This report documents the application of nonlinear-regression methods to a numerical model of ground-water flow in the Albuquerque Basin, New Mexico. In the Albuquerque Basin, ground water is the primary source for most water uses. Ground-water withdrawal has steadily increased since the 1940's, resulting in large declines in water levels in the Albuquerque area. A ground-water flow mode

Authors

C. R. Tiedeman, J. M. Kernodle, D. P. McAda

Ecosystems Mission Area, Toxic Substances Hydrology, Environmental Health Program, New Mexico Water Science Center

January 1, 1998

An implicit dispersive transport algorithm for the US Geological Survey MOC3D solute-transport model

This report documents an extension to the U.S. Geological Survey MOC3D transport model that incorporates an implicit-in-time difference approximation for the dispersive transport equation, including source/sink terms. The original MOC3D transport model (Version 1) uses the method of characteristics to solve the transport equation on the basis of the velocity field. The original MOC3D solution algo

Authors

K.L. Kipp, Leonard F. Konikow, G.Z. Hornberger

Ecosystems Mission Area, Toxic Substances Hydrology, Environmental Health Program

January 1, 1998

Lithology and fracture characterization from drilling investigations in the Mirror Lake area, Grafton County, New Hampshire

The lithology and fracture network of the bedrock aquifer in the Mirror Lake area were characterized from hydrogeologic data collected from 1979-95 in Grafton County, N.H. The collection of these data is an integral part of an ongoing multidisciplinary study by the U.S. Geological Survey to characterize groundwater flow and solute transport in fractured rock. The data provide a physical framework

Authors

C. D. Johnson, A.H. Dunstan

Ecosystems Mission Area, Groundwater and Streamflow Information Program, Toxic Substances Hydrology, Environmental Health Program

January 1, 1998

Mineralogical characteristics and acid-neutralizing potential of drill core samples from eight sites considered for metal-mine related waste repositories in northern Jefferson, Powell, and Lewis and Clark Counties, Montana

No abstract available.

Authors

G. A. Desborough, Rhonda Driscoll

Ecosystems Mission Area, Toxic Substances Hydrology, Environmental Health Program

January 1, 1998

Methyl tert-butyl ether (MTBE) and other volatile organic compounds in lakes in Byram Township, Sussex County, New Jersey, summer 1998

Water samples were collected from four lakes in Byram Township, Sussex County, N.J., in the summer of 1998 as part of an investigation of the occurrence of volatile organic compounds (VOCs) in domestic wells of lakeside communities. Cranberry Lake and Lake Lackawanna are surrounded by densely populated communities where the use of gasoline-powered watercraft is prevalent, and water is supplied by

Authors

Arthur L. Baehr, Otto S. Zapecza

Ecosystems Mission Area, Toxic Substances Hydrology, Environmental Health Program

January 1, 1998

Crosswell seismic tomography at the USGS fractured rock research site data collection, data processing, and tomograms

No abstract available.

Authors

K.J. Ellefson, J. E. Kibler, P. A. Hsieh, A.M. Shapiro

Ecosystems Mission Area, Toxic Substances Hydrology, Environmental Health Program