Fall 1996 - Volume 16, No. 4

Peer-reviewed Papers

• A Field Test of Electromigration as a Method for Remediating Sulfate from Shallow Ground Water, by Charles G. Patterson and Donald D. Runnells, Page 63
  

• Evaluating Natural Attentuation with Spreadsheet Analytical Fate and Transport Models, by Paul W. Ollila, Page 69
  

• Vitamin B12-Catalyzed Dechlorination of Perchloroethylene Present as Residual DNAPL, by Suzanne Lesage, Susan Brown, and Kelly Millar, Page 76
  

• Neutron Moisture Probe Measurements of Fluid Displacement During In Situ Air Sparging, by Daniel J. McKay and Lawrence J. Acomb, Page 86
  

• Allocation of Environmental Remediation Funds Using Economic Risk-Cost-Benefit Analysis: A Case Study, by Bruce R. James, Dale D. Huff, John R. Trabalka, Richard H. Ketelle, and Craig T. Rightmire, Page 95
  

• Intercomparison of Waterborne 222Rn Collection Methods: Professional vs. Homeowner Collection, by R. William Field and Burton C. Kross, Page 106
  

• Patterns of Chemical Changes During Environmental Alteration of Hydrocarbon Fuels, by Isaac R. Kaplan, Yakov Galperin, Hossein Alimi, Ru-Po Lee, and Shan-Tan Lu, Page 113
  

• Compatibility of NAPLs and Other Organic Compounds with Materials Used in Well Construction, Sampling, and Remediation, by Douglas R. McCaulou, David G. Jewett, and Scott G. Huling, Page 125
  

• Effects of Process Control Changes on Aquifer Oxygenation Rates During In Situ Air Sparging in Homogeneous Aquifers, by Kyle W. Rutherford and Paul C. Johnson, Page 132
  

Columns

• EPA Update: STORET: A good place for ground water data, Page 45
• Agricultural Chemical News, Page 51
• Treatment Technology: Practical Remediation Technologies, Page 54
• Forum: The Definition of Thermal Oxidizer Turndown, Page 58
• Forum: Consultant Liability Questions: Don't be afraid to ask, Page 60

Directory

• 1996 Directory of Consultants and Contractors, Page 173
• Capabilities, Page 174
• Directory of firms listed, Page 178

Departments

• News Briefs, Page 4
• Professional Services Section, Page 142
• Equipment News, Page 150
• Instructions to Contributors, Page 232
• Index of Advertisers, Page 234

Winter 1997, Volume 17, No. 1

Spring 1997, Volume 17, No. 2

Peer-Reviewed Papers

• Domestic Well Water Quality in Rural Nebraska: Focus on Nitrate-Nitrogen, Pesticides, and Coliform Bacteria by David C. Gosselin, Jacqueline Headrick, Rod Tremblay, Xun-Hong Chen, and Scott Summerside, page 77
  

• A Survey of Radon-222 in Ground Water from the Sherwood Sand-stone Aquifer: Belfast and Newtownards, Northern Ireland by Deirdre Gibbons and Robert Kalin, page 88
  

• A Pilot Test of Passive Oxygen Release for Enhancement of In Situ Biremediation of BTEX-Contaminated Ground Water by Steven W. Chapman, Brian T. Byerley, David J.A. Smyth, and Douglas M. Mackay, page 93
  

• Identification of Heteroaromatic and Other Organic Compounds in Ground Water at Creosote-Contaminated Sites in Denmark by Sys Stybe Johansen, Asger B. Hansen, Hans Mosbok, and Erik Arvin, page 106
  

• Relationship Between Contaminated Ground Water Concentration Levels and Explosion Potentials in Sewer Systems by William J. Peterson, page 116
  

• An Algorithm for the Estimation of NAPL Saturation and Composition from Typical Soil Chemical Analyses by Paul E. Mariner, Minquan Jin, and Richard E. Jackson, page 122
  

• Multivariate Analyses to Improve Understanding of NAPL Pollutant Sources by Susan E. Powers, James F. Villaume, and John A. Ripp, page 130
  

Columns

• Consultant Liability, page 56
• Agricultural Chemical News: Two Types of Soil Sorption, page 59
• EPA Update: A Summary of State Wellhead Protection Programs, page 61
• Treatment Technology: The State of the Art of Bioremediation, page 64
• Forum: Low-Flow Ground Water Sampling--Is It a Cure-All?, page 70
• Forum: Effective Implementation of the Watershed Management Approach for Ground Water Basins in California, page 73

Departments

• News Briefs, page 4
• Equipment News, page 142
• Instructions to Contributors, page 165
• Professional Services Section, page 167
• Index of Advertisers, page 172

Summer 1997, Volume 17, No. 3

Peer-Reviewed Papers

• Electrical Leak Detection System for Landfill Liners: A Case History by C.C. White and R.D. Barker, page 21

• Using Vertical Circulation Wells for Partitioning Tracer Tests and Remediation of DNAPLs by L. Chen and R.C. Knox, page 161

• Field Evaluation of Ultrasonic Method for Assessing Well Seals by Nazli Yesiller, Craig H. Benson, and Tuncer B. Edil, page 169

• Diffusion Samplers as an Inexpensive Approach to Monitoring VOCs in Ground Water by Don A. Vroblesky and W. Thomas Hyde, page 177

• Arrays of Unpumped Wells for Plume Migration Control by Semi-Passive In Situ Remediation by Ryan D. Wilson, Douglas M. Mackay, and John A. Cherry, page 185

• Synergistic Application of Four Remedial Techniques at an Industrial Site by Jean M. Dasch, Abdul S. Abdul, Devi N. Rai, Thomas L. Gibson, and Noel Grosvenor, page 194

• Use of Aerobic and Anaerobic Microcosms to Assess BTEX Biodegradation in Aquifers by J.P. Salanitro, H.L. Wisniewski, D.L. Byers, C.C. Neaville, and R.A. Schroder, page 210

• Three-Dimensional Experimental Testing of a Two-Phase Flow-Modeling Approach for Air Sparging by Gretchen L. Hein, John S. Gierke, Neil J. Hutzler, and Ronald W. Falta, page 222

• Evaluation of Batch Leaching Procedures for Estimating Metal Mobility in Glaciated Soils by Jeffrey A. Lackovic, Nikolaos P. Nikolaidis, Pradeep Chheda, Robert J. Carley, and Elsie Patton, page 231

Annual Buyers Guide

• Index, page 91
  
• Directory of Firms Listed, page 93
  
• Product Listings and Descriptions, page 99

Columns

• Editorial: Virtual Ground Water Monitoring: Where Do We Go from Here, page 4
  
• Agricultural Chemical News, page 60
  
• Wellhead Protection News: Californians Work Together, page 63
  
• EPA Update: Preliminary Method Discussed, page 64
  
• Treatment Technology: Mau the Force Be with You, page 70
  
• Forum: Inexpensive Access Tube Installation of Tensiometers, page 76
  
• Forum: History of sole Source Aquifer Program, page 78
  
• Forum: No Purge Sampling: Here's the beef, page 87

Departments

• News Briefs, page 8
  
• Equipment News, page 241
  
• Professional Services Section, page 264
  
• Index of Advertisers

Fall 1997, Volume 17, No. 4

Peer-Reviewed Papers

• Biodegradation of Petroleum Hydrocarbons in Fractured, Unsaturated Dolomite at a Field Site by Eugene L. McLinn and Bernd W. Rehm, page 73

• Field Test of the In Situ Permeable Ground Water Flow Sensor by Andrew S. Alden and Clyde L. Munster, page 81

• Experimental Investigation of Surfactant-Enhanced Dissolution of Residual NAPL in Saturated Soil by Lizette R. Chevalier, Susan J. Masten, Roger B. Wallace, and David C. Wiggert, page 89

• A Full-Scale Porous Reactive Wall for Prevention of Acid Mine Drainage by Shawn G. Benner, David W. Blowes, and Carol J. Ptacek, page 99

• Remediating Ground Water with Zero-Valent Metals: Chemical Considerations in Barrier Design by Paul G. Tratnyek, Timothy L. Johnson, Michelle M. Scherer, and Gerald R. Eykholt, page 108

• Sampling Trace-Level Organic Solutes with Polymeric Tubing Part I. Static Studies by Louise V. Parker and Thomas A. Ranney, page 115

• Spodic Material for In Situ Treatment of Arsenic in Ground Water by J. Lindberg, J. Sterneland, P.-O. Johannsson, and J.P. Gustafsson, page 125

• Geophysical Discovery of a New LNAPL Plume at the Former Wurtsmith AFB, Oscoda, Michigan by Jose L. Bermejo, William A. Sauck, and Estella A. Atekwana, page 131

Columns

• Wellhead Protection News: California Moves Ahead, page 59
  
• Agricultural Chemical News, page 60
  
• EPA Update: Ground Water Disinfection Rule, page 63
  
• Treatment Technology: Monitoring Plans, page 67
  
• Forum: Topos on Disk, Finally, page 71
  
• Forum: A Survey of the Causes of Surfactant-Induced Changes in Hydraulic Conductivity, page 138
  
• Forum: USGS Compiles Data Set for National Assessment of VOCs in Ground Water, page 147
  

Directory of Consultants and Contractors

• Capabilities, page 160
  
• Directory of firms listed, page 166
  

Departments

• News Briefs, page 4
  
• Equipment News, page 172
  
• Professional Services Section, page 189
  
• Instructions to Contributors, page 193
  
• Index of Advertisers, page 194

Winter 1998, Volume 18, No. 1

Peer-Reviewed Papers

• A Method for Installing Piezometers in Large Cobble Bed Rivers by David R. Geist, Mark C. Joy, David R. Lee, and Tom Gonser, page 78

• Field Observations of Tidal and Seasonal Variations in Ground Water Discharge to Tidal Estuarine Surface Water by Michael Robinson, Dan Gallagher, and William Reay, page 83

• Enhancement of In Situ Bioremediation of BTEX-Contaminated Ground Water by Oxygen Diffusion from Silicone Tubing by Thomas L. Gibson, Abdul S. Abdul, and Paul D. Chalmer, page 93

• Transport and Biological Fate of Toluene in Low-Permeability Soils by Sankar N. Venkatraman, David S. Kosson, and John R. Schuring, page 105

• In Situ Vertical Circulation Column: Containment System for Small-Scale DNAPL Field Experiments by Dominique Sorel, John A. Cherry, and Suzanne Lesage, page 114

• Bioavailability of Hydrophobic Organic Contaminants: Effects and Implications of Sorption-Related Mass Transfer on Bioremediation by Wei-xian Zhang, Edward J. Bouwer, and William P. Ball, page 126

• Design and Optimization of a Ground Water Monitoring System Using GIS and Multicriteria Decision Analysis by D. Dutta, A. Das Gupta, and V. Ramnarong, page 139

• Sampling Trace-Level Organic Solutes with Polymeric Tubing Part 2. Dynamic Studies, by Louise V. Parker and Thomas A. Ranney, page 148

• Inorganic Water Quality Monitoring Using Specific Conductance in Mexico by Luis E. Marin, B. Steinich, Oscar Escolero, Rosa Maria Leal, Braulio Silva, and Susana Gutierrez, page 156

Columns

• Agricultural Chemical News, page 60
  
• EPA Update, page 63
  
• Treatment Technology:First, Do No Harm, page 65
  
• Forum: Zero Exposure: An Alternative Approach to Health-Based Risk Assessment, page 69
  
• Forum: Streamlining Implementation of Risk-Based Corrective Action (RBCA) at California LUFT Sites, page 71
  
• Forum: The Problem of Fractures, page 74
  
  

Departments

• News Briefs, page 4
  
• Equipment News, page 165
  
• Professional Services Section, page 185
  
• Index of Advertisers, page 188
  
  

Spring 1998, Vol. 18, No. 2

Peer-Reviewed Papers

• Modeling multispecies reactive transport in ground water, by T.P. Clement, Y. Sun, B.S. Hooker, and J.N. Petersen, page 79

• Configuring detection wells near landfills, by Paul F. Hudak, page 93

• Demonstration of a microbiologically enhanced vertical ground water circulation well technology at a Superfund site, by Fayaz S. Lakhwala, James G. Mueller, and Richard J. Desrosiers, page 97

• Comparison of fiberglass and other polymeric well casings, Part II. Sorption and leaching of trace-level organics, page 107

• A study of long-term MTBE attenuation in the Borden Aquifer, Ontario, Canada, by Mario Schirmer and James F. Barker, page 113

• Estimation of biodegradation rates using respiration tests during in situ bioremediation of weathered diesel NAPL, by G.B. Davis, C.D. Johnston, B.M. Patterson, C. Barber, and M. Bennett, page 123

• A new analytical treatment of airflow to inlet wells in soil vapor extraction systems, by Shemin Ge, page 133

• Case history of large-scale air sparging/soil vapor extraction system for remediation of chlorinated volatile organic compounds in ground water, by Matthew J. Gordon, page 137

• Ground water replenishment with reclaimed water in the city of Los Angeles, by Ali A. Karimi, Jeremy A. Redman, and Roberto F. Ruiz, page 150

Columns

• Agricultural Chemical News, page 58
  
• EPA Update: Assessing the vulnerability of public water supply wells to microbial contamination, page 60
  
• Treatment Technology: In situ reactive zones--Dehalogenation of chlorinated hydrocarbons, page 68
  
• Forum: Constant drawdown aquifer tests--An alternative to traditional constant rate tests, page 76
  

Departments

• News Briefs, page 4
  
• Equipment News, page 159
  
• Professional Services Section, page 179
  
• Instructions to Contributors, page 167
  
• Index of Advertisers, page 182

Summer 1998, Volume 18, No. 3

Peer-Reviewed Papers

• LNAPL volume calculation: Parameter estimation of nonlinear regression of saturation profiles, by Paul D. Lundegard and Brett S. Mudford, page 88

• Using phase diagrams to predict the performance of cosolvent floods for NAPL remediation, by Ronald W. Falta, page 94

• Laboratory study of polymer solutions used for mobility control during in situ NAPL recovery, by K.E. Martel, R. Martel, R. Lefebvre, and P.J. Gelinas, page 103

• Modeling and remediation of ground water contamination at the Engelse Werk Wellfield, by Xichuan Wang, Truong X. Ngo, Yangxiao Zhou, and Jan C. Nooner, page 114

• Comparison of fiberglass and other polymeric well casings, Part III. Sorption and leaching of trace-level metals, by Thomas A. Ranney and Louise V. Parker, page 127

• A field and laboratory investigation of air fingering during air sparging, by Wilson S. Clayton, Ph.D., P.G., page 134

• Downhole weir for measuring flow rate in recirculation wells, by Tyler Gilmore, John Davis, and James Coates, page 146

• Design, installation, and uses of combination ground water and gas sampling wells, by Joel M. Hubbell, Thomas R. Wood, Brian Higgs, Allan H. Wylie, and Deborah L. McElroy, page 151

• Diisopropanolamine biodegradation potential at sour gas plants, by Lisa M. Gieg, E. Anne Greene, Debora L. Coy, and Phillip M. Fedorak, page 158

Annual Buyers Guide

• Index, page 175
  
• Directory of Firms Listed, page 177
  
• Product Listings and Descriptions, page 184
  

Columns

• Wellhead Protection News, page 67
  
• Agricultural Chemical News, page 68
  
• Treatment Technology: Beyond the AFCEE protocol for natural attenuation, page 70
  
• Forum: RBCA closure at DNAPL sites, page 78
  
• Forum: Modeling of plume capture by continuous, low-permeability barriers, page 82
  

Departments

• News Briefs, page 6
  
• Equipment News, page 241
  
• Professional Services Section, page 267
  
• Instructions to Contributors, page 174
  
• Index of Advertisers, page 272

Fall 1998, Volume 18, No. 4

Peer-Reviewed Papers

• Fate of MTBE relative to benzene in a gasoline-contaminated aquifer (1993-98), by James E. Landmeyer, Francis H. Chapelle, Paul M. Bradley, James F. Pankow, Clinton D. Church, and Paul G. Tratnyek, page 93

• A small-scale ground water leaching study for a primisulfuron herbicide, by H. Ted Change and Weiming Ying, page 103

• In-line measurement of trichloroethylene vapors using tin dioxide sensors, by G. Heron, M. van Zutphen, and C.G. Enfield, page 111

• Analytical model for contaminant mass removal by air sparging, by Alan J. Rabideau and James M. Blayden, page 120

• Effects of olestra on organic and solids removal in septic tanks, by Drew C. McAvoy, Jacqueline A. Greff, D. Ronald Webb, and Greg S. Allgood, page 131

• Mobilization and co-transport of pyrene in the presence of pseudomonas aeruginosa UG2 biosurfactants in sandy soil columns, by Pierre Lafrance and Mireille Lapointe, page 139

• Analysis of nitrate-nitrogen movement near high-capacity irrigation wells, by Xunchong Chen, Jerry F. Ayers, and David C. Gosselin, page 148

• Removal of volatile organic compound from surfactant solutions by flash vacuum stripping in a packed column, by Umesh N. Choori, John F. Scamehorn, John H. O'Haver, and Jeffrey H. Harwell, page 157

  
  

Forums

• Caution against interpreting gasoline release dates based on BTEX ratios in ground water, by Pedro J.J. Alvarez, Richard C. Heathcote, and Susan E. Powers, page 69
• Design for a packer/vacuum slug test system for estimating hydraulic conductivity in wells with LNAPLs, casing leaks, or water tables intersecting the screens, by Michael L. Strobel, Carissa J. Strobel, and Geoffrey N. Delin, page 77

Columns

• Agricultural Chemical News, page 55
  
• Treatment Technology: Identifying synergy between remedial strategies and land reuse, page 61
  
• EPA Update, page 58
  

Directory of Consultants and Contractors

• 1998 Directory of Consultants and Contractors, page 81
  
  • Part 1, Capabilities, page 82
    
  • Part 2, Directory of firms listed, page 86
    

Departments

• News Briefs, page 4
  
• Equipment News, page 166
  
• Professional Services Section, page 191
  
• Instructions to Contributors, page 195
  
• Index of Advertisers, page 198