John Williams
Intro
John H. Williams has a BA in Geology from Colgate University, and a MS in Geosciences from Pennsylvania State University. John currently is the Groundwater Specialist for the U. S. Geological Survey Water Science Center in New York, and is responsible for technical oversight of the Survey’s groundwater program in the State.
John has provided technical assistance to the U. S. Environmental Protection Agency, Army Corp of Engineers, and U.S. Nuclear Regulatory Commission on investigations of contaminated fractured-bedrock aquifers. He has worked with the Geological Survey of Canada in the investigation of transboundary aquifers in New York and Quebec.
In addition, John is an integral part of the geophysical training and technology transfer program of the Hydrogeophysics Branch of the Earth System Processes Division. He has provided support in borehole geophysics to Survey offices throughout the U. S. and in the United Arab Emirates. He recently co-taught a borehole geophysics workshop in northern Iraq for the Iraqi Central and Kurdish Regional Governments that was supported by the U. S. Department of Defense.
Over the past several years, John has made presentations on water-resource issues related to shale-gas development to the U. S. Department of Energy, U. S. Environmental Protection Agency, National Ground Water Association, North American Energy Marketers Association, Empire State Water Well Drillers Association, New York State Department of Environmental Conservation, Pennsylvania Department of Environmental Protection, professional associations of geologists, geophysicists, and engineers, universities, and environmental groups. He also has provided testimony to the New York State Assembly and New York City Council on these issues.
Science and Products
Geophysical, stratigraphic, and flow-zone logs of selected test, monitor, and water-supply wells in Cayuga County, New York
An integrated geophysical and hydraulic investigation to characterize a fractured-rock aquifer, Norwalk, Connecticut
Application of advanced geophysical logging methods in the characterization of a fractured-sedimentary bedrock aquifer, Ventura County, California
Using flowmeter pulse tests to define hydraulic connections in the subsurface: A fractured shale example
Characterization of fractures and flow zones in a contaminated shale at the Watervliet Arsenal, Albany County, New York
Use of advanced borehole geophysical techniques to delineate fractured-rock ground-water flow and fractures along water-tunnel facilities in northern Queens County, New York
Borehole-wall imaging with acoustic and optical televiewers for fractured-bedrock aquifer investigations
Geohydrologic assessment of crystalline bedrock for the New York City water-tunnel project by use of advanced borehole-geophysical methods
Hydrogeology and groundwater quality of the glaciated valleys of Bradford, Tioga, and Potter Counties, Pennsylvania
Advances in borehole geophysics for ground-water investigations
Design, operation, and data analysis for a wireline packer system in open boreholes, with field-test results from Belvidere, Illinois
Geophysical characterization of a fractured-bedrock aquifer and blast-fractured contaminant-recovery trench
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Geophysical, stratigraphic, and flow-zone logs of selected test, monitor, and water-supply wells in Cayuga County, New York
Volatile-organic compounds have been detected in water sampled from more than 50 supply wells between the City of Auburn and Village of Union Springs in Cayuga County, New York, and the area was declared a Superfund site in 2002. In 2001-04, geophysical logs were collected from 37 test, monitor, and water-supply wells as a preliminary part of the investigation of volatile-organic compound contaminAuthorsJ. Alton Anderson, John H. Williams, David A.V. Eckhardt, Todd S. MillerAn integrated geophysical and hydraulic investigation to characterize a fractured-rock aquifer, Norwalk, Connecticut
The U.S. Geological Survey conducted an integrated geophysical and hydraulic investigation at the Norden Systems, Inc. site in Norwalk, Connecticut, where chlorinated solvents have contaminated a fractured-rock aquifer. Borehole, borehole-to-borehole, surface-geophysical, and hydraulic methods were used to characterize the site bedrock lithology and structure, fractures, and transmissive zone hydrAuthorsJ.W. Lane, J.H. Williams, C. D. Johnson, D.M. Savino, F. P. HaeniApplication of advanced geophysical logging methods in the characterization of a fractured-sedimentary bedrock aquifer, Ventura County, California
An integrated suite of advanced geophysical logging methods was used to characterize the geology and hydrology of three boreholes completed in fractured-sedimentary bedrock in Ventura County, California. The geophysical methods included caliper, gamma, electromagnetic induction, borehole deviation, optical and acoustic televiewer, borehole radar, fluid resistivity, temperature, and electromagneticAuthorsJohn H. Williams, John W. Lane, Kamini Singha, F. Peter HaeniUsing flowmeter pulse tests to define hydraulic connections in the subsurface: A fractured shale example
Cross-borehole flowmeter pulse tests define subsurface connections between discrete fractures using short stress periods to monitor the propagation of the pulse through the flow system. This technique is an improvement over other cross-borehole techniques because measurements can be made in open boreholes without packers or previous identification of water-producing intervals. The method is basedAuthorsJ.H. Williams, Frederick L. PailletCharacterization of fractures and flow zones in a contaminated shale at the Watervliet Arsenal, Albany County, New York
Flow zones in a fractured shale in and near a plume of volatile organic compounds at the Watervliet Arsenal in Albany County, N. Y. were characterized through the integrated analysis of geophysical logs and single- and cross-hole flow tests. Information on the fracture-flow network at the site was needed to design an effective groundwater monitoring system, estimate offsite contaminant migration,AuthorsJohn H. Williams, Frederick L. PailletUse of advanced borehole geophysical techniques to delineate fractured-rock ground-water flow and fractures along water-tunnel facilities in northern Queens County, New York
Advanced borehole geophysical methods were used to assess the geohydrology of crystalline bedrock along the course of a new water tunnel for New York City. The logging methods include natural gamma, spontaneous potential, single-point resistance, mechanical and acoustic caliper, focused electromagnetic induction, electromagnetic resistivity, magnetic susceptibility, borehole-fluid temperature andAuthorsFrederick Stumm, Anthony Chu, Andrew D. Lange, Frederick L. Paillet, John H. Williams, John W. LaneBorehole-wall imaging with acoustic and optical televiewers for fractured-bedrock aquifer investigations
Imaging with acoustic and optical televiewers results in continuous and oriented 360 degree views of the borehole wall from which the character and orientation of lithologic and structural features can be defined for fractured-bedrock aquifer investigations. Fractures are more clearly defined under a wider range of conditions on acoustic images than on optical images including dark-colored rocks,AuthorsJohn H. Williams, Carole D. JohnsonGeohydrologic assessment of crystalline bedrock for the New York City water-tunnel project by use of advanced borehole-geophysical methods
No abstract available.AuthorsFrederick Stumm, Frederick L. Paillet, John H. Williams, John W. LaneHydrogeology and groundwater quality of the glaciated valleys of Bradford, Tioga, and Potter Counties, Pennsylvania
The most important sources of groundwater in Bradford, Tioga, and Potter Counties are the stratified-drift aquifers. Saturated sand and gravel primarily of outwash origin forms extensive unconfined aquifers in the valleys. Outwash is underlain in most major valleys by silt, clay, and very fine sand of lacustrine origin that comprise extensive confining units. The lacustrine confining units locallyAuthorsJohn H. Williams, Larry E. Taylor, Dennis J. LowAdvances in borehole geophysics for ground-water investigations
No abstract available.AuthorsJohn H. Williams, John W. LaneDesign, operation, and data analysis for a wireline packer system in open boreholes, with field-test results from Belvidere, Illinois
A wireline-operated packer was designed for use with a standard geophysical logging system. The packer probe consists of a downhole packer inflated with water removed from the borehole by an in-line submersible pump, and a differential pressure transducer calibrated to measure the hydraulic-head difference between the zones above and below the packer. Analysis of the packer data is based on a numeAuthorsFrederick L. Paillet, A.E. Hess, John H. WilliamsGeophysical characterization of a fractured-bedrock aquifer and blast-fractured contaminant-recovery trench
No abstract available.AuthorsJohn W. Lane, F. P. Haeni, Susan Soloyanis, G. Placzek, J. H. Williams, C. D. Johnson, M. L. Buursink, P. K. Joesten, K. D. Knutson - Software
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