David C Lampe
David attended University of Ilinois (B.S. Geology, 2001) and Indiana University (M.S. Geology, 2004) and has been employed as a hydrologist with the USGS Indiana Water Science Center since 2003. Scientific interests include borehole geophysics, horizontal borehole flowmeters, and three-dimensional data visualization techniques.
Science and Products
Investigating Links between Chloride and Harmful Algal Blooms in the Great Lakes
The USGS is investigating links between chloride concentrations in Great Lakes tributaries as a catalyst for Harmful Algal Blooms (HABs).
Hydrogeologic Mapping and Three-Dimensional Geologic Modeling of Glacial Deposits in a Multicounty Area of Southeastern Michigan, Northeastern Indiana, and Northwestern Ohio
Groundwater resources in southern Michigan, northeastern Indiana, and northwestern Ohio, have been a recurring subject of interest related to sources of public, irrigation, and other water supplies and the potential of glacial deposits to supply water to adjacent parts of Ohio. The glacial deposits that are part of the aquifer system informally known as the “Michindoh aquifer” are a principal...
Groundwater Age Estimates, Groundwater Quality, and Hydrogeologic Characteristics of Chase Street Flowing Well and Similar Confined Wells, Little Calumet River Basin, Indiana
In cooperation with The Little Calumet River Basin Development Commission and the Urban Waters Federal Partnership The Little Calumet River Basin Development Commission (LCRBDC) is developing a park around a local cultural landmark, known locally as the Chase Street flowing well, in Gary, Indiana, a community in the Urban Waters Federal Partnership--Northwest Indiana Area. Groundwater from the...
Assessing stormwater reduction using green infrastructure: Gary City Hall (Gary, Ind.)
The effectiveness of green infrastructure (rain gardens and decreased impervious surface) at reducing stormwater runoff and capturing dissolved chloride is being assessed at a redevelopment project at Gary City Hall (Gary, Indiana). This study will evaluate pre- and post-construction hydrologic conditions using data collected by monitoring storm-sewer flow, groundwater levels, soil moisture, and...
Water Quality Monitoring and Algal Community Composition Analysis in Support of Eutrophication Beneficial Use Impairment Evaluation in the Grand Calumet River Area of Concern, Northwest Indiana
In cooperation with the Indiana Department of Environmental Management and the U.S. Environmental Protection Agency
Indiana Volunteer Groundwater Monitoring Network
The USGS Indiana Water Science Center, in cooperation with the Indiana Department of Natural Resources, have developed a quality assured volunteer groundwater data collection system to enhance the existing groundwater-level network for the state and provide usable data to the public. Individuals interested in providing data to the Indiana Volunteer groundwater monitoring network can find more...
Indiana-Kentucky Climate Response Network
Do you recall the drought of 2012? Precipitation deficits during July 2012 were widespread. Morse Reservoir was a prominent sight that was highly visible in the news. Photos showed million dollar mansions with boats stranded on the lakebed. This drought took many by surprise, however, there were hydrologic signs during 2011. Events like this (and California) have brought some welcome attention to...
Indiana Discrete Measurement Groundwater Networks
Discrete groundwater measurements are made at 159 wells located in Lake, Hamilton, and St. Joseph Counties.
Kankakee River at Davis, IN Mega Gage: Monitoring Groundwater/Surface-Water Interactions
What is the groundwater contribution to nitrates in surface water? That's the question we are trying to answer by looking at surface-water and groundwater interaction and the role each play in the movement of nitrates. We have added additional monitoring equipment to the USGS super gage Kankakee River at Davis, IN, which will allow us to calculate the nitrate load in groundwater using flow...
Data and regression models used to estimate chloride concentration and road salt loading for an urban rain garden, Gary, Indiana Data and regression models used to estimate chloride concentration and road salt loading for an urban rain garden, Gary, Indiana
This data release contains data used to develop linear regression models to calculate continuous chloride concentrations in groundwater and runoff at an urban rain garden in Gary, IN. A python script was developed to perform the regression analysis and estimate sodium chloride (NaCl) loading to 5 rain-garden flumes as the product of: (1) the estimated continuous (one-minute) chloride...
Episodic Master Recession Model Output used for Recharge Estimation in a Rain Garden on Sandy Soil, Gary, Indiana, 2016-18 Episodic Master Recession Model Output used for Recharge Estimation in a Rain Garden on Sandy Soil, Gary, Indiana, 2016-18
A rain garden and other stormwater control measures (SCM) were installed at Gary City Hall in Gary, Indiana to retain water, increase infiltration, and divert stormwater from city sewers. In order to investigate the impacts of the installed SCMs, hydrologic data were collected prior to and following the installation to estimate site water budgets (Lampe and others, 2022). The Episodic...
Filter Total Items: 16
Hydrogeologic mapping and three-dimensional geologic modeling of glacial deposits in a multicounty area of southeastern Michigan, northeastern Indiana, and northwestern Ohio Hydrogeologic mapping and three-dimensional geologic modeling of glacial deposits in a multicounty area of southeastern Michigan, northeastern Indiana, and northwestern Ohio
The glacial deposits underlying southeastern Michigan, northeastern Indiana, and northwestern Ohio are a substantial source of water to communities, agriculture, and industry in the region. Previous efforts to characterize aquifer materials in the area cited a need for additional information about the underlying hydrogeologic characteristics and related groundwater availability as well...
Authors
Alexander Riddle, Leslie D. Arihood, Shawn Naylor, David Lampe
Road salt collection and redistribution at an urban rain garden on sandy soil, Gary, Indiana Road salt collection and redistribution at an urban rain garden on sandy soil, Gary, Indiana
Rain gardens installed as green infrastructure to divert storm runoff from entering combined sewers also collect dissolved constituents and particulates. An urban rain garden in northwestern Indiana, USA, was continuously monitored from November 2019 to May 2021 to evaluate the fate of dissolved constituents entering the rain garden in runoff. Physical and chemical properties of soils in...
Authors
E. Bayless, Shawn Naylor, David Lampe, Amy A Story, Caleb Colyer Artz
Stormwater reduction and water budget for a rain garden on sandy soil, Gary, Indiana, 2016–18 Stormwater reduction and water budget for a rain garden on sandy soil, Gary, Indiana, 2016–18
Stormwater reduction measures, or green infrastructure, were implemented in the parking area at Gary City Hall, Gary, Indiana, with the intention of reducing stormwater discharge to the sewers. A study area, including a centrally located rain garden and the surrounding paved surfaces and green space, was instrumented during both a preconstruction and a postconstruction period to (1)...
Authors
David Lampe, E. Bayless, Danielle Follette
Green infrastructure in the Great Lakes—Assessment of performance, barriers, and unintended consequences Green infrastructure in the Great Lakes—Assessment of performance, barriers, and unintended consequences
The Great Lakes Basin covers around 536,393 square kilometers, and the Great Lakes hold more than 5,400 cubic miles of water, accounting for more than 20 percent of the world’s fresh surface water supply. The Great Lakes provide a source of drinking water to tens of millions of people in Canada and the United States and support one of the most diverse ecosystems in the world. Increasing...
Authors
Nancy Baker, Daniel Sullivan, William Selbig, Ralph Haefner, David Lampe, E. Bayless, Michael McHale
Comparison of groundwater-model construction methods, representations of glacial geology, model designs, and groundwater-model flow simulations within Elkhart County, Indiana Comparison of groundwater-model construction methods, representations of glacial geology, model designs, and groundwater-model flow simulations within Elkhart County, Indiana
Automated data-processing methods allow hydrologists to efficiently incorporate digital well-record datasets into the construction of hydrostratigraphic frameworks for groundwater-flow models. The method selected to construct the hydrostratigraphic framework can affect the extent of geologic heterogeneity that can be included in the model. The detail generated from a hydrostratigraphic...
Authors
Leslie Arihood, David Lampe, E. Bayless, Steven Brown
Geochemistry and microbiology of groundwater and solids from extraction and monitoring wells and their relation to well efficiency at a Federally operated confined disposal facility, East Chicago, Indiana Geochemistry and microbiology of groundwater and solids from extraction and monitoring wells and their relation to well efficiency at a Federally operated confined disposal facility, East Chicago, Indiana
In cooperation with the U.S. Army Corps of Engineers, Chicago District, the U.S. Geological Survey investigated the processes affecting water quality, geochemistry, and microbiology in representative extraction and monitoring wells at a confined disposal facility (CDF) in East Chicago, Indiana. The CDF is a 140-acre Federally-managed facility that was the former location of an oil...
Authors
Randall Bayless, Travis Cole, David Lampe, R.E. Travis, Marjorie S. Schulz, Paul Buszka
Performance evaluation testing of wells in the gradient control system at a federally operated Confined Disposal Facility using single well aquifer tests, East Chicago, Indiana Performance evaluation testing of wells in the gradient control system at a federally operated Confined Disposal Facility using single well aquifer tests, East Chicago, Indiana
The U.S. Geological Survey (USGS) performed tests to evaluate the hydrologic connection between the open interval of the well and the surrounding Calumet aquifer in response to fouling of extraction well pumps onsite. Two rounds of air slug testing were performed on seven monitoring wells and step drawdown and subsequent recovery tests on three extraction wells on a U.S. Army Corps of...
Authors
David Lampe, Michael Unthank
Hydrologic data and groundwater-flow simulations in the Brown Ditch Watershed, Indiana Dunes National Lakeshore, near Beverly Shores and Town of Pines, Indiana Hydrologic data and groundwater-flow simulations in the Brown Ditch Watershed, Indiana Dunes National Lakeshore, near Beverly Shores and Town of Pines, Indiana
The U.S. Geological Survey (USGS) collected data and simulated groundwater flow to increase understanding of the hydrology and the effects of drainage alterations on the water table in the vicinity of Great Marsh, near Beverly Shores and Town of Pines, Indiana. Prior land-management practices have modified drainage and caused changes in the distribution of open water, streams and ditches...
Authors
David Lampe
Geophysical-log and hydraulic-test analyses of groundwater-production wells at the Hannahville Indian Community, Menominee County, Michigan Geophysical-log and hydraulic-test analyses of groundwater-production wells at the Hannahville Indian Community, Menominee County, Michigan
The U.S. Geological Survey, in cooperation with the Hannahville Indian Community, evaluated the geohydrology of the bedrock formations and hydraulic properties of groundwater-production wells at the Hannahville Indian Community in Menominee County, Michigan. Geophysical logs were collected from five wells at two sites during September 2012. The logs were analyzed to characterize the...
Authors
E. Bayless, J. Alton Anderson, David Lampe, John Williams
Hydrologic data and groundwater flow simulations in the vicinity of Long Lake, Indiana Dunes National Lakeshore, near Gary, Indiana Hydrologic data and groundwater flow simulations in the vicinity of Long Lake, Indiana Dunes National Lakeshore, near Gary, Indiana
The U.S. Geological Survey (USGS) collected data and simulated groundwater flow to increase understanding of the hydrology and the effects of drainage alterations to the water table in the vicinity of Long Lake, near Gary, Indiana. East Long Lake and West Long Lake (collectively known as Long Lake) make up one of the largest interdunal lakes within the Indiana Dunes National Lakeshore...
Authors
David Lampe, E. Bayless
Relation of hydrologic processes to groundwater and surface-water levels and flow directions in a dune-beach complex at Indiana Dunes National Lakeshore and Beverly Shores, Indiana Relation of hydrologic processes to groundwater and surface-water levels and flow directions in a dune-beach complex at Indiana Dunes National Lakeshore and Beverly Shores, Indiana
The potential for high groundwater levels to cause wet basements (groundwater flooding) is of concern to residents of communities in northwestern Indiana. Changes in recharge from precipitation increases during 2006-9, water-level changes from restoration of nearby wetlands in the Great Marsh in 1998-2002, and changes in recharge due to the end of groundwater withdrawals for water supply...
Authors
Paul Buszka, David Cohen, David Lampe, Noel Pavlovic
Discrete and continuous water-quality data and hydrologic parameters from seven agricultural watersheds in the United States, 2002-09 Discrete and continuous water-quality data and hydrologic parameters from seven agricultural watersheds in the United States, 2002-09
Field and analytical methods; discrete organic and non-organic water-quality data and associated quality-control data; and continuous hydrologic and water-quality parameters are reported for sites in California, Indiana, Iowa, Maryland, Mississippi, Nebraska, and Washington. The sites were sampled as part of the U.S. Geological Survey National Water-Quality Assessment Program?s...
Authors
Kathleen McCarthy, David Lampe, Paul Capel
Non-USGS Publications**
Lampe, D.C., and Olyphant, G.A., 2003, Geostatistical characterization of apparent hydraulic conductivity distributions within three highly heterogeneous glacial terrains of Indiana: Abstract presented at Geological Society of America, Annual Meeting, November 2–5, 2003
**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
Investigating Links between Chloride and Harmful Algal Blooms in the Great Lakes
The USGS is investigating links between chloride concentrations in Great Lakes tributaries as a catalyst for Harmful Algal Blooms (HABs).
Hydrogeologic Mapping and Three-Dimensional Geologic Modeling of Glacial Deposits in a Multicounty Area of Southeastern Michigan, Northeastern Indiana, and Northwestern Ohio
Groundwater resources in southern Michigan, northeastern Indiana, and northwestern Ohio, have been a recurring subject of interest related to sources of public, irrigation, and other water supplies and the potential of glacial deposits to supply water to adjacent parts of Ohio. The glacial deposits that are part of the aquifer system informally known as the “Michindoh aquifer” are a principal...
Groundwater Age Estimates, Groundwater Quality, and Hydrogeologic Characteristics of Chase Street Flowing Well and Similar Confined Wells, Little Calumet River Basin, Indiana
In cooperation with The Little Calumet River Basin Development Commission and the Urban Waters Federal Partnership The Little Calumet River Basin Development Commission (LCRBDC) is developing a park around a local cultural landmark, known locally as the Chase Street flowing well, in Gary, Indiana, a community in the Urban Waters Federal Partnership--Northwest Indiana Area. Groundwater from the...
Assessing stormwater reduction using green infrastructure: Gary City Hall (Gary, Ind.)
The effectiveness of green infrastructure (rain gardens and decreased impervious surface) at reducing stormwater runoff and capturing dissolved chloride is being assessed at a redevelopment project at Gary City Hall (Gary, Indiana). This study will evaluate pre- and post-construction hydrologic conditions using data collected by monitoring storm-sewer flow, groundwater levels, soil moisture, and...
Water Quality Monitoring and Algal Community Composition Analysis in Support of Eutrophication Beneficial Use Impairment Evaluation in the Grand Calumet River Area of Concern, Northwest Indiana
In cooperation with the Indiana Department of Environmental Management and the U.S. Environmental Protection Agency
Indiana Volunteer Groundwater Monitoring Network
The USGS Indiana Water Science Center, in cooperation with the Indiana Department of Natural Resources, have developed a quality assured volunteer groundwater data collection system to enhance the existing groundwater-level network for the state and provide usable data to the public. Individuals interested in providing data to the Indiana Volunteer groundwater monitoring network can find more...
Indiana-Kentucky Climate Response Network
Do you recall the drought of 2012? Precipitation deficits during July 2012 were widespread. Morse Reservoir was a prominent sight that was highly visible in the news. Photos showed million dollar mansions with boats stranded on the lakebed. This drought took many by surprise, however, there were hydrologic signs during 2011. Events like this (and California) have brought some welcome attention to...
Indiana Discrete Measurement Groundwater Networks
Discrete groundwater measurements are made at 159 wells located in Lake, Hamilton, and St. Joseph Counties.
Kankakee River at Davis, IN Mega Gage: Monitoring Groundwater/Surface-Water Interactions
What is the groundwater contribution to nitrates in surface water? That's the question we are trying to answer by looking at surface-water and groundwater interaction and the role each play in the movement of nitrates. We have added additional monitoring equipment to the USGS super gage Kankakee River at Davis, IN, which will allow us to calculate the nitrate load in groundwater using flow...
Data and regression models used to estimate chloride concentration and road salt loading for an urban rain garden, Gary, Indiana Data and regression models used to estimate chloride concentration and road salt loading for an urban rain garden, Gary, Indiana
This data release contains data used to develop linear regression models to calculate continuous chloride concentrations in groundwater and runoff at an urban rain garden in Gary, IN. A python script was developed to perform the regression analysis and estimate sodium chloride (NaCl) loading to 5 rain-garden flumes as the product of: (1) the estimated continuous (one-minute) chloride...
Episodic Master Recession Model Output used for Recharge Estimation in a Rain Garden on Sandy Soil, Gary, Indiana, 2016-18 Episodic Master Recession Model Output used for Recharge Estimation in a Rain Garden on Sandy Soil, Gary, Indiana, 2016-18
A rain garden and other stormwater control measures (SCM) were installed at Gary City Hall in Gary, Indiana to retain water, increase infiltration, and divert stormwater from city sewers. In order to investigate the impacts of the installed SCMs, hydrologic data were collected prior to and following the installation to estimate site water budgets (Lampe and others, 2022). The Episodic...
Filter Total Items: 16
Hydrogeologic mapping and three-dimensional geologic modeling of glacial deposits in a multicounty area of southeastern Michigan, northeastern Indiana, and northwestern Ohio Hydrogeologic mapping and three-dimensional geologic modeling of glacial deposits in a multicounty area of southeastern Michigan, northeastern Indiana, and northwestern Ohio
The glacial deposits underlying southeastern Michigan, northeastern Indiana, and northwestern Ohio are a substantial source of water to communities, agriculture, and industry in the region. Previous efforts to characterize aquifer materials in the area cited a need for additional information about the underlying hydrogeologic characteristics and related groundwater availability as well...
Authors
Alexander Riddle, Leslie D. Arihood, Shawn Naylor, David Lampe
Road salt collection and redistribution at an urban rain garden on sandy soil, Gary, Indiana Road salt collection and redistribution at an urban rain garden on sandy soil, Gary, Indiana
Rain gardens installed as green infrastructure to divert storm runoff from entering combined sewers also collect dissolved constituents and particulates. An urban rain garden in northwestern Indiana, USA, was continuously monitored from November 2019 to May 2021 to evaluate the fate of dissolved constituents entering the rain garden in runoff. Physical and chemical properties of soils in...
Authors
E. Bayless, Shawn Naylor, David Lampe, Amy A Story, Caleb Colyer Artz
Stormwater reduction and water budget for a rain garden on sandy soil, Gary, Indiana, 2016–18 Stormwater reduction and water budget for a rain garden on sandy soil, Gary, Indiana, 2016–18
Stormwater reduction measures, or green infrastructure, were implemented in the parking area at Gary City Hall, Gary, Indiana, with the intention of reducing stormwater discharge to the sewers. A study area, including a centrally located rain garden and the surrounding paved surfaces and green space, was instrumented during both a preconstruction and a postconstruction period to (1)...
Authors
David Lampe, E. Bayless, Danielle Follette
Green infrastructure in the Great Lakes—Assessment of performance, barriers, and unintended consequences Green infrastructure in the Great Lakes—Assessment of performance, barriers, and unintended consequences
The Great Lakes Basin covers around 536,393 square kilometers, and the Great Lakes hold more than 5,400 cubic miles of water, accounting for more than 20 percent of the world’s fresh surface water supply. The Great Lakes provide a source of drinking water to tens of millions of people in Canada and the United States and support one of the most diverse ecosystems in the world. Increasing...
Authors
Nancy Baker, Daniel Sullivan, William Selbig, Ralph Haefner, David Lampe, E. Bayless, Michael McHale
Comparison of groundwater-model construction methods, representations of glacial geology, model designs, and groundwater-model flow simulations within Elkhart County, Indiana Comparison of groundwater-model construction methods, representations of glacial geology, model designs, and groundwater-model flow simulations within Elkhart County, Indiana
Automated data-processing methods allow hydrologists to efficiently incorporate digital well-record datasets into the construction of hydrostratigraphic frameworks for groundwater-flow models. The method selected to construct the hydrostratigraphic framework can affect the extent of geologic heterogeneity that can be included in the model. The detail generated from a hydrostratigraphic...
Authors
Leslie Arihood, David Lampe, E. Bayless, Steven Brown
Geochemistry and microbiology of groundwater and solids from extraction and monitoring wells and their relation to well efficiency at a Federally operated confined disposal facility, East Chicago, Indiana Geochemistry and microbiology of groundwater and solids from extraction and monitoring wells and their relation to well efficiency at a Federally operated confined disposal facility, East Chicago, Indiana
In cooperation with the U.S. Army Corps of Engineers, Chicago District, the U.S. Geological Survey investigated the processes affecting water quality, geochemistry, and microbiology in representative extraction and monitoring wells at a confined disposal facility (CDF) in East Chicago, Indiana. The CDF is a 140-acre Federally-managed facility that was the former location of an oil...
Authors
Randall Bayless, Travis Cole, David Lampe, R.E. Travis, Marjorie S. Schulz, Paul Buszka
Performance evaluation testing of wells in the gradient control system at a federally operated Confined Disposal Facility using single well aquifer tests, East Chicago, Indiana Performance evaluation testing of wells in the gradient control system at a federally operated Confined Disposal Facility using single well aquifer tests, East Chicago, Indiana
The U.S. Geological Survey (USGS) performed tests to evaluate the hydrologic connection between the open interval of the well and the surrounding Calumet aquifer in response to fouling of extraction well pumps onsite. Two rounds of air slug testing were performed on seven monitoring wells and step drawdown and subsequent recovery tests on three extraction wells on a U.S. Army Corps of...
Authors
David Lampe, Michael Unthank
Hydrologic data and groundwater-flow simulations in the Brown Ditch Watershed, Indiana Dunes National Lakeshore, near Beverly Shores and Town of Pines, Indiana Hydrologic data and groundwater-flow simulations in the Brown Ditch Watershed, Indiana Dunes National Lakeshore, near Beverly Shores and Town of Pines, Indiana
The U.S. Geological Survey (USGS) collected data and simulated groundwater flow to increase understanding of the hydrology and the effects of drainage alterations on the water table in the vicinity of Great Marsh, near Beverly Shores and Town of Pines, Indiana. Prior land-management practices have modified drainage and caused changes in the distribution of open water, streams and ditches...
Authors
David Lampe
Geophysical-log and hydraulic-test analyses of groundwater-production wells at the Hannahville Indian Community, Menominee County, Michigan Geophysical-log and hydraulic-test analyses of groundwater-production wells at the Hannahville Indian Community, Menominee County, Michigan
The U.S. Geological Survey, in cooperation with the Hannahville Indian Community, evaluated the geohydrology of the bedrock formations and hydraulic properties of groundwater-production wells at the Hannahville Indian Community in Menominee County, Michigan. Geophysical logs were collected from five wells at two sites during September 2012. The logs were analyzed to characterize the...
Authors
E. Bayless, J. Alton Anderson, David Lampe, John Williams
Hydrologic data and groundwater flow simulations in the vicinity of Long Lake, Indiana Dunes National Lakeshore, near Gary, Indiana Hydrologic data and groundwater flow simulations in the vicinity of Long Lake, Indiana Dunes National Lakeshore, near Gary, Indiana
The U.S. Geological Survey (USGS) collected data and simulated groundwater flow to increase understanding of the hydrology and the effects of drainage alterations to the water table in the vicinity of Long Lake, near Gary, Indiana. East Long Lake and West Long Lake (collectively known as Long Lake) make up one of the largest interdunal lakes within the Indiana Dunes National Lakeshore...
Authors
David Lampe, E. Bayless
Relation of hydrologic processes to groundwater and surface-water levels and flow directions in a dune-beach complex at Indiana Dunes National Lakeshore and Beverly Shores, Indiana Relation of hydrologic processes to groundwater and surface-water levels and flow directions in a dune-beach complex at Indiana Dunes National Lakeshore and Beverly Shores, Indiana
The potential for high groundwater levels to cause wet basements (groundwater flooding) is of concern to residents of communities in northwestern Indiana. Changes in recharge from precipitation increases during 2006-9, water-level changes from restoration of nearby wetlands in the Great Marsh in 1998-2002, and changes in recharge due to the end of groundwater withdrawals for water supply...
Authors
Paul Buszka, David Cohen, David Lampe, Noel Pavlovic
Discrete and continuous water-quality data and hydrologic parameters from seven agricultural watersheds in the United States, 2002-09 Discrete and continuous water-quality data and hydrologic parameters from seven agricultural watersheds in the United States, 2002-09
Field and analytical methods; discrete organic and non-organic water-quality data and associated quality-control data; and continuous hydrologic and water-quality parameters are reported for sites in California, Indiana, Iowa, Maryland, Mississippi, Nebraska, and Washington. The sites were sampled as part of the U.S. Geological Survey National Water-Quality Assessment Program?s...
Authors
Kathleen McCarthy, David Lampe, Paul Capel
Non-USGS Publications**
Lampe, D.C., and Olyphant, G.A., 2003, Geostatistical characterization of apparent hydraulic conductivity distributions within three highly heterogeneous glacial terrains of Indiana: Abstract presented at Geological Society of America, Annual Meeting, November 2–5, 2003
**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.