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USGS Colorado Water Science Center Publications
Ground Water

2017
JRN
Environmental Science & Technology
Methane and Benzene in Drinking-Water Wells Overlying the Eagle Ford, Fayetteville, and Haynesville Shale Hydrocarbon Production Areas
By Peter B. McMahon, Jeannie R.B. Barlow, Mark A. Engle, Kenneth Belitz Patricia B. Ging, Andrew G. Hunt, Bryant C. Jurgens, Yousif K. Kharaka, Roland W. Tollett, and Timothy M. Kresse
PDF ( 0 KB) | Online Journal Article
2016
SIR
U.S. Geological Survey Scientific Investigations Report 2016-5134
Groundwater and surface-water interaction, water quality, and processes affecting loads of dissolved solids, selenium, and uranium in Fountain Creek near Pueblo, Colorado, 2012-2014
By L. Rick Arnold, Roderick F. Ortiz, Christopher R. Brown, and Kenneth R. Watts
JRN
Science of the Total Environment
Controls on selenium distribution and mobilization in an irrigated shallow groundwater system underlain by Mancos Shale, Uncompahgre River Basin, Colorado, USA
By Taylor J. Mills, M. Alisa Mast, Judith Thomas, Gabrielle Keith
PDF ( 0 KB) | Online Journal Article
OFR
Open-File Report 2016-1100
Preliminary Results from Exploratory Sampling of Wells for the California Oil, Gas, and Groundwater Program, 2014-15
By Peter B. McMahon, Justin T. Kulongoski, Michael T. Wright, Michael T. Land, Matthew K. Landon, Isabelle M. Cozzarelli, Avner Vengosh, and George R. Aiken
SIR
U.S. Geological Survey Scientific Investigations Report 2016-5047
Response of selenium concentrations in groundwater to seasonal canal leakage, lower Gunnison River Basin, Colorado, 2013
By J.I. Linard, P.B. McMahon, L.R. Arnold, and J.C. Thomas
SIR
U.S. Geological Survey Scientific Investigations Report 2016-5020
Groundwater quality, age, and susceptibility and vulnerability to nitrate contamination with linkages to land use and groundwater flow, Upper Black Squirrel Creek Basin, Colorado, 2013
By Tristan P. Wellman and Michael G. Rupert
2015
SIR
U.S. Geological Survey Scientific Investigations Report 2015-5147
Characterization of hydrology and water quality of Piceance Creek in the Alkali Flat area, Rio Blanco County, Colorado, March 2012
By Judith C. Thomas
DS
Data Series 955
Installation of a groundwater monitoring-well network on the east side of the Uncompahgre River in the Lower Gunnison River Basin, Colorado, 2014
By Judith C. Thomas
JRN
Groundwater
Chemical Considerations for an Updated National Assessment of Brackish Groundwater Resources
By P.B. McMahon, J. K. Böhlke, K.G. Dahm, D.L. Parkhurst, D.W. Anning, and J.S. Stanton
PDF ( 0 KB) | Online Journal Article
DS
Data Series 923
Installation of a Groundwater Monitoring-Well Network on the East Side of the Uncompahgre River in the Lower Gunnison River Basin, Colorado, 2012
By Judith C. Thomas and Larry R. Rick Arnold
OFR
Open-File Report 2014-1261
Analysis of Historic Agricultural Irrigation Data from the Natural Resources Conservation Service Monitoring and Evaluation for Grand Valley, Lower Gunnison Basin, and McElmo Creek Basin, Western Colorado, 1985 to 2003
By John W. Mayo
CIRC
Circular 1360
Water Quality in Principal Aquifers of the United States, 1991-2010
By Leslie A. DeSimone, Peter B. McMahon, and Michael R. Rosen
CIRC
Circular 1357
Water Quality in the Denver Basin Aquifer System, Colorado, 2003-05
By Nancy J. Bauch, MaryLynn Musgrove, Barbara J. Mahler, and Suzanne S. Paschke
2014
OFR
Open-File Report 2014-1231
Monitoring-Well Installation, Slug Testing, and Groundwater Quality for Selected Sites in South Park, Park County, Colorado, 2013
By L.R. Arnold
JRN
Groundwater
Quality and Age of Shallow Groundwater in the Bakken Formation Production Area, Williston Basin, Montana and North Dakota
By P.B. McMahon, R.R. Caldwell, J.M. Galloway, J.F. Valder, and A.G. Hunt
PDF ( 0 KB) | Online Journal Article
SIR
U.S. Geological Survey Scientific Investigations Report 2014-5172
Groundwater Levels in the Denver Basin Bedrock Aquifers of Douglas County, Colorado, 2011-2013
By Rhett R. Everett
SIR
U.S. Geological Survey Scientific Investigations Report 2014-5095
Groundwater and Surface-Water Interaction and Potential for Underground Water Storage in the Buena Vista-Salida Basin, Chaffee County, Colorado, 2011
By Kenneth R. Watts, Tamara Ivahnenko, Robert W. Stogner, and James F. Bruce
OFR
Open-File Report 2014-1158
Two Decision-Support Tools for Assessing the Potential Effects of Energy Development on Hydrologic Resources as Part of the Energy and Environment in the Rocky Mountain Area Interactive Energy Atlas
By Joshua I. Linard, Anne Marie Matherne, Kenneth J. Leib, Natasha B. Carr, James E. Diffendorfer, Sarah J. Hawkins, Natalie Latysh, Drew A. Ignizio, and Nils C. Babel
SIR
U.S. Geological Survey Scientific Investigations Report 2014-5051
Quality of Groundwater in the Denver Basin Aquifer System, Colorado, 2003-5
By By MaryLynn Musgrove, Jennifer A. Beck, Suzanne S. Paschke, Nancy J. Bauch, and Shana L. Mashburn
SIR
U.S. Geological Survey Scientific Investigations Report 2013-5074
Water Quality at a Biosolids-Application Area near Deer Trail, Colorado, 1993-1999
By Tracy J.B. Yager
TM
Techniques and Methods 6-A50
Two Graphical User Interfaces for Managing and Analyzing MODFLOW Groundwater-Model Scenarios
By Edward R. Banta
SIR
U.S. Geological Survey Scientific Investigations Report 2013-5218
Assessment of the quality of groundwater and the Little Wind River in the area of a former uranium processing facility on the Wind River Reservation, Wyoming, 1987 through 2010
By Anthony J. Ranalli and David L. Naftz
2013
TM
Techniques and Methods 6-A48
GWM-VI-Groundwater Management with Parallel Processing for Multiple MODFLOW Versions
By Edward R. Banta and David P. Ahlfeld
JRN
Environmental Science and Technology
Groundwater Ages and Mixing in the Piceance Basin Natural Gas Province, Colorado
By Peter B. McMahon, Judith C. Thomas, and Andrew G. Hunt
PDF ( 0 KB) | Online Journal Article
FS
Fact Sheet 2013-3047
Chemistry and Age of Groundwater in the Piceance Structural Basin, Rio Blanco County, Colorado, 2010-12
By P.B. McMahon, J.C. Thomas, and A.G. Hunt
SIR
U.S. Geological Survey Scientific Investigations Report 2013-5132
Chemistry and Age of Groundwater in Bedrock Aquifers of the Piceance and Yellow Creek Watersheds, Rio Blanco County, Colorado, 2010-12
By P.B. McMahon, J.C. Thomas, and A.G. Hunt
SIR
U.S. Geological Survey Scientific Investigations Report 2013-5065
Effects of surface applications of biosolids on groundwater quality and trace-element concentrations in crops near Deer Trail, Colorado, 2004-2010
By Tracy J.B. Yager, James G. Crock, David B. Smith, Edward T. Furlong, Philip L. Hageman, William T. Foreman, James L. Gray, and Rhiannon C. ReVello
2012
SIR
U.S. Geological Survey Scientific Investigations Report 2012-5198
Overview of groundwater quality in the Piceance Basin, western Colorado, 1946–2009
By J.C. Thomas and P.B. McMahon
SIR
U.S. Geological Survey Scientific Investigations Report 2012-5220
Use of classes based on redox and groundwater age to characterize the susceptibility of principal aquifers to changes in nitrate concentrations, 1991 to 2010
By P.B. McMahon
SIR
U.S. Geological Survey Scientific Investigations Report 2012-5056
Preliminary assessment of sources of nitrogen in groundwater at a biosolids-application area near Deer Trail, Colorado, 2005
By Tracy J.B. Yager and Peter B. McMahon
SIR
U.S. Geological Survey Scientific Investigations Report 2012-5140
Demonstration optimization analyses of pumping from selected Arapahoe aquifer municipal wells in the west-central Denver Basin, Colorado, 2010-2109
By Edward R. Banta and Suzanne S. Paschke
DS
Data Series 718
Groundwater-quality and quality-control data for two monitoring wells near Pavillion, Wyoming, April and May 2012
By Peter R. Wright, Peter B. McMahon, David K. Mueller, and Melanie L. Clark
OFR
Open-File Report 2012-1197
Sampling and analysis plan for the characterization of groundwater quality in two monitoring wells near Pavillion, Wyoming
By Peter R. Wright and Peter B. McMahon
SIR
U.S. Geological Survey Scientific Investigations Report 2012-5049
Methods for evaluating temporal groundwater quality data and results of decadal-scale changes in chloride, dissolved solids, and nitrate concentrations in groundwater in the United States, 1988-2010
By Bruce D. Lindsey and Michael G. Rupert
2011
PP
Professional Paper 1770
Groundwater Availability of the Denver Basin Aquifer System, Colorado
By Suzanne S. Paschke
SIR
U.S. Geological Survey Scientific Investigations Report 2011-5085
Hydrogeologic Setting and Simulation of Groundwater Flow near the Canterbury and Leadville Mine Drainage Tunnels, Leadville, Colorado
By Tristan P. Wellman, Suzanne S. Paschke, Burke Minsley, and Jean A. Dupree
OFR
Open-File Report 2011-1213
MODFLOW-CDSS, a Version of MODFLOW-2005 with Modifications for Colorado Decision Support Systems
By Edward R. Banta
DS
Data Series 589
Biosolids, crop, and groundwater data for a biosolids-Application area near Deer Trail, Colorado, 2007 and 2008
By Yager, T.J.B., Smith, D.B., and Crock, J.G.
OFR
Open-File Report 2011-1146
Analytical Results for Municipal Biosolids Samples from a Monitoring Program Near Deer Trail, Colorado (U.S.A.), 2010
By J.G. Crock, D.B. Smith, T.J.B. Yager, C.J. Berry, and M.G. Adams
TM
Techniques and Methods 6-E4
ModelMate-A Graphical User Interface for Model Analysis
By Edward R. Banta
SIR
U.S. Geological Survey Scientific Investigations Report 2011-5001
Estimates of Deep-Percolation Return Flow Beneath a Flood- and a Sprinkler-Irrigated Site in Weld County, Colorado, 2008-2009
By L.R. Arnold
2010
SIR
U.S. Geological Survey Scientific Investigations Report 2010-5215
Use of Diverse Geochemical Data Sets to Determine Sources and Sinks of Nitrate and Methane in Groundwater, Garfield County, Colorado, 2009
By P.B. McMahon, J.C. Thomas, and A.G. Hunt
DS
Data Series 543
Digital map of the aquifer boundary of the High Plains aquifer in parts of Colorado, Kansas, Nebraska, New Mexico, Oklahoma, South Dakota, Texas, and Wyoming
By Sharon Qi
OFR
Open-File Report 2010-1162
Analytical Results for Municipal Biosolids Samples from a Monitoring Program Near Deer Trail, Colorado (U.S.A.), 2009
By J.G. Crock, D.B. Smith, T.J.B. Yager, C.J. Berry, and M.G. Adams
Data Series 507
Geographic Information System Datasets of Regolith-Thickness Data, Regolith-Thickness Contours, Raster-Based Regolith Thickness, and Aquifer-Test and Specific-Capacity Data for the Lost Creek Designated Ground Water Basin, Weld, Adams, and Arapahoe Counties, Colorado
By L. Rick Arnold
SIR
U.S. Geological Survey Scientific Investigations Report 2010-5082
Hydrogeology and Steady-State Numerical Simulation of Groundwater Flow in the Lost Creek Designated Ground Water Basin, Weld, Adams, and Arapahoe Counties, Colorado
By L. Rick Arnold
SIR
Scientific Investigations Report 2010-5019
Land-Use Analysis and Simulated Effects of Land-Use Change and Aggregate Mining on Groundwater Flow in the South Platte River Valley, Brighton to Fort Lupton, Colorado
By L.R. Arnold, C.S. Mladinich, W.H. Langer, and J.S. Daniels
SIR
Scientific Investigations Report 2009-5048
Analysis of Dissolved Selenium Loading from Surface Water and Groundwater to Sweitzer Lake, Colorado, 2006-07
By Judith C. Thomas
2009
DS
Data Series 472
Depth to Water, Saturated Thickness, and Other Geospatial Datasets Used in the Design and Installation of a Groundwater Monitoring-Well Network in the High Plains Aquifer, Colorado
By Jennifer L. Flynn, L. Rick Arnold, and Suzanne S. Paschke
Data Series 461
Probability of elevated volatile organic compound (VOC) concentrations in groundwater in the Eagle River watershed valley-fill aquifer, Eagle County, North-Central Colorado, 2006-2007
By Michael G. Rupert and L. Niel Plummer
Data Series 460
Probability of unmixed young groundwater (defined using chlorofluorocarbon-11 concentrations and tritium activities) in the Eagle River watershed valley-fill aquifer, Eagle County, North-Central Colorado, 2006-2007
By Michael G. Rupert and L. Niel Plummer
Data Series 459
Probability of elevated nitrate concentrations in groundwater in the Eagle River watershed valley-fill aquifer, Eagle County, North-Central Colorado, 2006-2007
By Michael G. Rupert and L. Niel Plummer
OFR
Open-File Report 2009-1111
Analytical Results for Municipal Biosolids Samples from a Monitoring Program Near Deer Trail, Colorado (U.S.A.), 2008
By J.G. Crock, D.B. Smith, T.J.B. Yager, C.J. Berry, and M.G. Adams
Data Series 458
Boundary of the Eagle River watershed valley-fill aquifer, Eagle County, North-Central Colorado, 2006-2007
By Michael G. Rupert and L. Niel Plummer
DS
Data Series 456
Design and Installation of a Groundwater Monitoring-Well Network in the High Plains Aquifer, Colorado
By L.R. Arnold, J.L. Flynn, and S.S. Paschke
SIR
Scientific Investigations Report 2009-5082
Groundwater Quality, Age, and Probability of Contamination, Eagle River Watershed Valley-Fill Aquifer, North-Central Colorado, 2006-2007
By Michael G. Rupert and L. Niel Plummer
TM
Techniques and Methods 6-A28
User Guide and Documentation for Five MODFLOW Ground-Water Modeling Utility Programs
By Edward R. Banta, Suzanne S. Paschke, and David W. Litke
TM
Techniques and Methods 6-A27
User Guide for HUFPrint, A Tabulation and Visualization Utility for the Hydrogeologic-Unit Flow (HUF) Package of MODFLOW
By Edward R. Banta and Alden M. Provost
SIR
Scientific Investigations Report 2009-5126
Identifying Hydrologic Processes in Agricultural Watersheds Using Precipitation-Runoff Models
By Joshua I. Linard, David M. Wolock, Richard M.T. Webb, and Michael E. Wieczorek
SIR
Scientific Investigations Report 2008-5243
Occurrence of Selected Organic Compounds in Groundwater Used for Public Supply in the Plio-Pleistocene Deposits in East-Central Nebraska and the Dawson and Denver Aquifers near Denver, Colorado, 2002-2004
By Jeffrey B. Bails, Benjamin J. Dietsch, Matthew K. Landon, and Suzanne S. Paschke
FS
Fact Sheet 2009-3041
Redox Conditions in Selected Principal Aquifers of the United States
By P.B. McMahon, T.K. Cowdery, F.H. Chapelle, and B.C. Jurgens
DS
Data Series 379
Biosolids, Crop, and Ground-Water Data for a Biosolids-Application Area Near Deer Trail, Colorado, 2004 Through 2006
By Tracy J.B. Yager, David B. Smith, and James G. Crock
CIRC
Circular 1333
Recharge Rates and Chemistry Beneath Playas of the High Plains Aquifer - A Literature Review and Synthesis
By Jason J. Gurdak and Cassia D. Roe
Ground Water
Distinguishing Iron-Reducing from Sulfate-Reducing Conditions
By Francis H. Chapelle, Paul M. Bradley, Mary Ann Thomas, and Peter B. McMahon
PDF ( 0 KB) | Online Journal Article
JRN
Water Resources Research
Effects of simplifying fracture network representation on inert chemical migration in fracture-controlled aquifers
By Tristan P. Wellman Allen M. Shapiro and Mary C. Hill
PDF ( 0 KB) | Online Journal Article
2008
SIR
Scientific Investigations Report 2008-5020
Availability, Sustainability, and Suitability of Ground Water, Rogers Mesa, Delta County, Colorado - Types of Analyses and Data for Use in Subdivision Water-Supply Reports
By Kenneth R. Watts
Computers & Geosciences
Building model analysis applications with the Joint Universal Parameter IdenTification and Evaluation of Reliability (JUPITER) API
By Edward R. Banta, Mary C. Hill, Eileen Poeter, John E. Doherty, and Justin Babendreier
PDF ( 0 KB) | Online Journal Article
Ground Water
Redox processes and water quality of selected principal aquifer systems
By P.B. McMahon and F.H. Chapelle
PDF ( 0 KB) | Online Journal Article
Journal of Environmental Quality
Near-Decadal Changes in Nitrate and Pesticide Concentrations in the South Platte River Alluvial Aquifer, 1993 - 2004
By Suzanne S. Paschke, Keelin R. Schaffrath, and Shana L. Mashburn
PDF ( 0 KB) | Online Journal Article
Journal of Environmental Quality
Decadal-Scale Changes of Nitrate in Ground Water of the United States, 1988 - 2004
By Michael G. Rupert
PDF ( 0 KB) | Online Journal Article
Vadose Zone Journal
Susceptibility to enhanced chemical migration from depression-focused preferential flow, High Plains Aquifer
By Jason J. Gurdak, Michelle A. Walvoord, and Peter B. McMahon
PDF ( 0 KB) | Online Journal Article
JRN
Water Resources Research
Source and transport controls on the movement of nitrate to public supply wells in selected principal aquifers of the United States
By P.B. McMahon, J.K. Böhlke, L.J. Kauffman, K.L. Kipp, M.K. Landon, C.A. Crandall, K.R. Burow, and C.J. Brown
PDF ( 0 KB) | Online Journal Article
JRN
Water Resources Research
Simulated response of water quality in public supply wells to land use change
By P. B. McMahon, K. R. Burow, L. J. Kauffman, S. M. Eberts, J. K. Böhlke, and J. J. Gurdak
PDF ( 0 KB) | Online Journal Article
2007
SIR
Scientific Investigations Report 07-5220
Ground-Water Quality and Potential Effects of Individual Sewage Disposal System Effluent on Ground-Water Quality in Park County, Colorado, 2001-2004
By Lisa D. Miller and Roderick F. Ortiz
PP
Professional Paper 1737-A
Hydrogeologic Settings and Ground-Water Flow Simulations for Regional Studies of the Transport of Anthropogenic and Natural Contaminants to Public-Supply Wells Studies Begun in 2001
By Edited Suzanne S. Paschke
Vadose Zone Journal
Climate variability controls on unsaturated-zone water and chemical movement, High Plains aquifer
By Jason J. Gurdak, Randall T. Hanson, Peter B. McMahon, Breton W. Bruce, John E. McCray, Geoffrey D. Thyne, and Robert C. Reedy
PDF ( 0 KB) | Online Journal Article
2006
SIR
Scientific Investigations Report 06-5315
Dissolved Solids in Basin-Fill Aquifers and Streams in the Southwestern United States
By David W. Anning, Nancy J. Bauch, Steven J. Gerner, Marilyn E. Flynn, Scott N. Hamlin, Stephanie J. Moore, Donald H. Schaefer, Scott K. Anderholm, and Lawrence E. Spangler
SIR
Scientific Investigations Report 06-5184
Application of a stream-aquifer model to Monument Creek for Development of a method to estimate transit losses for reusable water, El Paso County, Colorado
By Gerhard Kuhn and Rick Arnold
SIR
Scientific Investigations Report 06-5129
Hydrostratigraphic Framework of the Raton, Vermejo, and Trinidad Aquifers in the Raton Basin, Las Animas County, Colorado
By Kenneth R. Watts
SIR
Scientific Investigations Report 06-5109
A Preliminary Evaluation of Vertical Separation between Production Intervals of Coalbed-Methane Wells and Water-Supply Wells in the Raton Basin, Huerfano and Las Animas Counties, Colorado, 1999-2004
By Kenneth R. Watts
SIR
Scientific Investigations Report 06-5050
Vulnerability of Recently Recharged Ground Water in the High Plains Aquifer to Nitrate Contamination
By Jason J. Gurdak and Sharon L. Qi
Environmental Science and Technology
Regional patterns in the isotopic composition of natural and anthropogenic nitrate in ground water
By P.B. McMahon and J.K. Böhlke
PDF ( 0 KB) | Online Journal Article
2005
SIR
Scientific Investigations Report 05-5179
Hydrogeology and Quality of Ground Water in the Upper Arkansas River Basin from Buena Vista to Salida, Colorado, 2000-2003
By Kenneth R. Watts
SIR
Scientific Investigations Report 05-5106
Quality of Nutrient Data from Streams and Ground Water Sampled During Water Years 1992-2001
By David K. Mueller and Cindy J. Titus
SIR
Scientific Investigations Report 05-5063
Variability of Differences between Two Approaches for Determining Ground-Water Discharge and Pumpage, Including Effects of Time Trends, Lower Arkansas River Basin, Southeastern Colorado, 1998-2002
By Brent M. Troutman, Patrick Edelmann, and Russell G. Dash
FS
Fact Sheet 2005-3143
Sustainability of Ground-Water Resources in the Upper Arkansas River Basin between Buena Vista and Salida, Colorado, 2000-2003
By K.R. Watts
2004
SIR
Scientific Investigations Report 04-5290
Distribution and Mass of Nitrate in the Unconfined Aquifer Beneath the Intensively Cultivated Area North of the Rio Grande, San Luis Valley, Colorado, 1997 through 2001
By Robert W. Stogner, Sr
SIR
Scientific Investigations Report 04-5289
Effects of Surface Applications of Biosolids on Soil, Crops, Ground Water, and Streambed Sediment near Deer Trail, Colorado, 1999-2003
By Tracy J.B. Yager, David B. Smith, and James G. Crock
OFR
Open-File Report 2004-1404
Biosolids, Soil, Crop, Ground-Water, and Streambed-Sediment Data for a Biosolids-Application Area Near Deer Trail, Colorado, 2002-2003
By Tracy J.B. Yager, David B. Smith, and James G. Crock
OFR
Open-File Report 2004-1388
Biosolids, Soil, Crop, Ground-Water, and Streambed-Sediment Data for a Biosolids-Application Area Near Deer Trail, Colorado, 2001
By Tracy J.B. Yager, David B. Smith, and James G. Crock
FS
Fact Sheet 2004-3127
Wastewater Chemicals in Colorado's Streams and Ground Water
By Lori A. Sprague and William A. Battaglin
FS
Fact Sheet 2004-3097
Water-Level Changes in the High Plains Aquifer, Predevelopment to 2003 and 2002 to 2003
By V.L. McGuire
FS
Fact Sheet 2004-3066
Ground-Water Quality of Granitic- and Volcanic-Rock Aquifers in Southeastern Park County, Colorado, July-August 2003
By Roderick F. Ortiz
FS
Fact Sheet 2004-3065
Ground-Water Quality of Alluvial and Sedimentary-Rock Aquifers in the Vicinity of Fairplay and Alma, Park County, Colorado, September-October 2002
By Roderick F. Ortiz
FS
Fact Sheet 2004-3051
Ground-Water Age and Flow at Great Sand Dunes National Monument, South-Central Colorado
By Michael G. Rupert and L. Niel Plummer
FS
Fact Sheet 2004-3009
Potential Effects of Individual Sewage Disposal System Density on Ground-Water Quality in the Fractured-Rock Aquifer in the Vicinity of Bailey, Park County, Colorado, 2001-2002
By Daniel L. Brendle
2003
WRI
Water-Resources Investigations Report 03-4275
Water-Quality Characteristics and Ground-Water Quantity of the Fraser River Watershed, Grand County, Colorado, 1998-2001
By Nancy J. Bauch and Jeffrey B. Bails
WRI
Water-Resources Investigations Report 03-4219
Ground-Water Quality Beneath Irrigated Agriculture in the Central High Plains Aquifer, 1999-2000
By Breton W. Bruce, Mark F. Becker, Larry M. Pope, and Jason J. Gurdak
WRI
Water-Resources Investigations Report 03-4172
Application of Tracer-Injection Techniques to Demonstrate Surface-Water and Ground-Water Interactions Between an Alpine Stream and the North Star Mine, Upper Animas River Watershed, Southwestern Colorado
By Winfield G. Wright and Bryan Moore
WRI
Water-Resources Investigations Report 03-4171
Water Movement Through Thick Unsaturated Zones Overlying the Central High Plains Aquifer, Southwestern Kansas, 2000-2001
By P.B. McMahon, K.F. Dennehy, R.L. Michel, M.A. Sophocleous, K.M. Ellett, and D.B. Hurlbut
OFR
Open-File Report 03-400
Biosolids, Soil, Crop, Ground-Water, and Streambed-Sediment Data for a Biosolids-Application Area Near Deer Trail, Colorado, 2000
By Tracy J.B. Yager, David B. Smith, James G. Crock, and Michael R. Stevens
Ground Water
Ground Water Occurrence and Contributions to Streamflow in an Alpine Catchment, Colorado Front Range
By David W. Clow, L. Schrott, R. Webb, Donald H. Campbell, A. Torizzo, and Mark Dornblaser
PDF ( 0 KB) | Online Journal Article
2002
WRI
Water-Resources Investigations Report 02-4269
Probability of Detecting Atrazine/Desethyl-atrazine and Elevated Concentrations of Nitrate in Ground Water in Colorado
By Michael G. Rupert
WRI
Water-Resources Investigations Report 02-4247
Ground-water-quality assessment of shallow aquifers in the Front Range Urban Corridor, Colorado, 1954-98,
By J.L. Flynn
WRI
Water-Resources Investigations Report 02-4236
Classification of Irrigated Land Using Satellite Imagery, the High Plains Aquifer, Nominal Date 1992
By Sharon L. Qi, Alexandria Konduris, David W. Litke, and Jean Dupree
WRI
Water-Resources Investigations Report 02-4058
Geophysical Logging to Determine Construction, Contributing Zones, and Appropriate Use of Water Levels Measured in Confined-Aquifer Network Wells, San Luis Valley, Colorado, 1998-2000
By Daniel L. Brendle
OFR
Open-File Report 02-364
Analysis of Geophysical Logs from Six Boreholes at Lariat Gulch, Former U.S. Air Force Site PJKS, Jefferson County, Colorado
By Frederick L. Paillet, Richard E. Hodges, and Barbara S. Corland
OFR
Open-File Report 02-051
Biosolids, Soils, Ground-Water, and Streambed-Sediment Data for a Biosolids-Application Area near Deer Trail, Colorado, 1999
By Michael R. Stevens, Tracy J.B. Yager, David B. Smith, and James G. Crock
2001
WRI
Water-Resources Investigations Report 01-4190
Evaluation of Possible Alternatives to Lower the High Water Table of St. Charles Mesa, Pueblo County, Colorado
By Daniel L. Brendle
WRI
Water-Resources Investigations Report 01-4028
Vertical Gradients in Water Chemistry in the Central High Plains Aquifer, Southwestern Kansas and Oklahoma Panhandle, 1999
By P.B. McMahon
2000
WRI
Water-Resources Investigations Report 00-4254
Historical Water-Quality Data for the High Plains Regional Ground-Water Study Area in Colorado, Kansas, Nebraska, New Mexico, Oklahoma, South Dakota, Texas, and Wyoming, 1930-98
By David W. Litke
WRI
Water-Resources Investigations Report 00-4011
Effects of the Paradox Valley Unit on dissolved solids, sodium, and chloride in the Dolores River near Bedrock, Colorado, Water Years 1988-98
By Watts, Kenneth R.
OFR
Open-File Report 00-214
Quality of ground water and surface water in an area of individual sewage disposal system use near Barker Reservoir, Nederland, Colorado, August-September 1998
By J.L. Flynn and L.B. Barber
1999
WRI
Water-Resources Investigations Report 99-4243
Ground-Water-Quality Assessment of Selected Wells in the Fraser River Watershed, Colorado, August 1998
By Lori E. Apodaca, C. Michelle Smith, and Jeffrey B. Bails
WRI
Water-Resources Investigations Report 99-4221
Comparison of two approaches for determining ground-water discharge and pumpage in the lower Arkansas River Basin, Colorado, 1997-98
By R.G. Dash, B.M. Troutman, and P.F. Edelmann
1997
NON
Intergovermental Task Force on Monitoring Water Quality
Conceptual Frameworks for Ground-Water-Quality Monitoring
By Franke, O.L., and the Ground-Water Focus Group of the Intergovernmental Task Force on Monitoring Water Quality
FS
Fact Sheet 004-97
Variability of nitrate concentrations in the shallow ground water in a selected area of the San Luis Valley, south-central Colorado
By R.W. Stogner
1995
OFR
Open-File Report 95-450
Bibliography, indices, and data sources of water-related studies, Upper Colorado River Basin, Colorado and Utah,1872-1995
By N.J. Bauch and L.E. Apodaca
1994
OFR
Open-File Report 94-102
National Water-Quality Assessment Program - Upper Colorado River Basin
By N.E. Driver

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