WOCA 2022 Presentations can be found below

Case History: Ash Pond Closure Contact Water Management Strategies Ken Daly, Amarachi Eze link
In-Situ Stabilization for Hydraulic Control at CCR Sites Paul Lear link
Closure of Ash Ponds 1 and 2 at Duck Creek Power Station: Construction and Dewatering Techniques on Wet CCR Material Duane Lanoue link
Waste Management Transportation Johnny Wicker link
Managing and Visualizing Data for Alternate Source Demonstration Support Darby Litz link
Coal Quality & Combustion Impacts on Ash Chemistry Rod Hatt link
Data/Quality-Based Geomembrane Field Seaming Evaluation for CCR Projects Ken Daly, Evan Andrews link
Developing Solar Power on Closed CCP Impoundments Rick Buffalini link
EPRI Research on Groundwater-Surface Water Interactions Near Coal Combustion Product Sites Bruce Hensel, Jeff Thomas, Tim Towey, Anthony Aufdenkampe link
EPRI Coal Combustion Product Research Update Bruce Hensel, Ben Gallagher, Lea Millet link
Roadmap for Monitored Natural Attenuation Demonstration for Coal Combustion Product Constituents in Groundwater Jim Redwine, Dimitri Vlassopoulos, Kristi Mitchell, Eric Wallis link
CCR LANDFILL CONSTRUCTION & OPERATION UNDER SUBTITLE D THOMAS R. GREDELL link
CCR Construction on Steep Slopes Tammy DeRamo link
Field and Laboratory Methods to Demonstrate Monitored Natural Attenuation for Coal Combustion Product Constituents in Groundwater Jim Redwine, Masa Kanematsu, Minna Carey, Kristi Mitchell, Dimitri Vlassopoulos link
Ash Ponds Closure Case Study – Challenges and Lessons Learned Tammy DeRamo link
Lime Activated Coal Ash for CCR Pond Closure Projects Larry Gibson, Karen Slade link
Potential Changes in Groundwater Quality Following Unlined CCR Pond Closures: What to Expect and How to Plan for It Herwig Goldemund link
A Framework for Achieving High-Quality Vertical Hydraulic Barriers for CCR Sites Brian Johnson, Richard Egan link
SOLAR ON CCR: RE-PURPOSING OF COAL COMBUSTION RESIDUAL UNITS Doug Kilmer link
Upgrading the properties of Fly-Ash from long-term storage, with simultaneous deagglomeration, drying & classification using Atritor technology Andrew Rigg, Scott Coley, Paul Machacek link
Meeting Fly Ash Demand Through Ash Harvesting and Beneficiation Eric Effinger link
Monitoring of Construction Over Soft CCR Deposits Pedro Amaya, Michelle Perez Perez-Canals, Mary Nodine, Will Lukas link
Groundwater Monitoring Plan Considerations for Assessment and Corrective Action Sites Charles Hostetler, Bernd Rehm link
Panel Discussion- CCR Management: Looking Back to Prepare for Tomorrow Mark Rokoff, Vic Modeer, Tim Hill, Jim Palmer link
Preparing for the Endgame: Operating to Close Jason Eichenberger link
Sono-Processing of Coal for Removal of Ash and Other Impurities Ramamurthy Nagarajan link
CCR Removal and Its Effects on Soil and Groundwater Geochemistry Sarah Holmstrom, Clint Miller link
Lessons Learned from 30 Years of Construction Quality Assurance in Geosynthetic Lined Containment Systems Glen Toepfer link
The Sky’s the Limit May Raad link
Impoundment Closure Using Discrete In-situ Solidification – A Case Study Tim Silar, John Magee link
Fly Ash Reclamation and Beneficiation Using a Triboelectric Belt Separator Frank Hrach link
Groundwater Compliance & Strategy Insights for CCR Rule Stakeholders Sheryl Smith link
Buzzword or Strategy? How ESG Trends Are Reshaping Risk Management Dawn Santoianni link
Challenges in CCP Management in Europe Fabrice Fayola, Hans‐Joachim FEUERBORN link
TVA Paradise Slag Ponds – An Innovative Use of Unconventional Fill Materials Nick Golden, Shane Harris, Sara Mathews link
Cost-effectively Storing Bulk CCPs in Concrete Domes Zachary Fillmore link
Global opportunities and challenges for coal combustion products with a Circular Economy Joachim Feuerborn, Craig Heidrich link
The Changing Paradigm: Regulatory Treatment of CCR Beneficial Use and Practical Implications Dawn Santoianni, Martha S. Thomsen, Susan Jackson link
PLUME STABILITY ANALYSES AND GROUNDWATER MANAGEMENT ZONE DEVELOPMENT Jonathan Shireman, Amar Bumb, Gary R. Hecox, Karen Thorbjornsen, James Teo, Ernie Stine link
Shifting Trends in Coal Production in the Midwest and its Effect on Class F Fly Ash Performance and Potential for Beneficiation Thomas Robl, Bob Jewell, Tristana Duvallet, and Anne Oberlink link
Comparing Cover Systems for Sustainable and Resilient Coal Ash Closures Marc Theisen link

WOCA 2022 Papers can be found below

The Intersection of the CCR Rule, Superfund, and Irrigation on the Great Plains Shane McDonald, Jillian Troyer, Lori Calub, Marty Stange link
R. PAUL SMITH POWER STATION LANDFILL RECLAMATION PROJECT Richard A. Ellman, Joseph Malizia, Jim Erdman, Daniel B. Baker, Kevin Eckert, Peter J. Romano, Sean Ahern, and Raymond T. Hemmings link
Sono-Processing of Coal for Removal of Ash and Other Impurities Dr. R Nagarajan, Dr. B. Ambedkar, and Dr. H. Srivalli link
Reducing the Cost of Wastewater Treatment from Coal Ash Basin Closure Projects Using Closed Loop Zero Valent Iron Treatment Methods Andrew Vincent, Chris Hardin link
Osmotic and matric controls on water potential in ash from TVA’s Kingston Fossil Plant Yunesh Saulick, John L. Daniels, Michael Uduebor, and Emmanuel Adeyanju link
Real Time Pore Pressure Monitoring of Ash and Construction-Induced Responses: The State of the Practice Paul Schmall, P.E., Chris Hardin, P.E., Kenneth Campbell, and Ryan Smith, P.E. link
Coal Quality & Combustion Impacts on Ash Chemistry Rod Hatt link
Determination of Undrained Strength for Contractive Coal Combustion Residuals Ryan Lavorati; Seda Gokyer; W. Allen Marr; Nicholas McClung link
Fly Ash Reclamation and Beneficiation Using a Triboelectric Belt Separator F Hrach, K Flynn, K Ghazi, and S Sullivan link
Cost Effective and Safe Renewable Energy Storage Using Encapsulated Coal Combustion Residuals Chris Hardin link
Pre-Design Bench-Scale Evaluation of the Effectiveness of Ash Pond Closure in Place Using In-Situ Soil Stabilization Chris Hardin, Bill Haswell link
Waste Management Transportation Johnny Wicker link
Use of Machine Learning Algorithm to Classify Anomalies in Cover of CCR Disposal Site Hanlei Gu, Wladimiro Villarroel, Benjamin Gallagher, Brian Palmer link
Rapid Coal Ash & Air Entrainment Analysis with Automated Sample Transport Yongjun Chen, Arun Thamban, Hisham Menkara link
Challenges & Pragmatic Solutions for the Design and Construction of a 300-Acre CCR Landfill Located in the Southwestern US – A Case Study Andy Lucas, Jason Pokorny link
Monitoring of Construction Over Soft CCR Deposits Pedro Amaya, Michelle Perez-Canals, Mary Nodine, Will Lukas link
Freezing your Bottom Line: Mitigating Weather Impacts to the Supply Chain Justin Desilets link
Global opportunities and challenges for coal combustion products with a Circular Economy Craig Heidrich, Joachim Feuerborn link
Geochemical Explanations for Strong Natural Attenuation of Molybdenum, Selenium, and Lithium in a Groundwater Plume Min-Ying Jacob Chu, Ph.D. and J.P. Brandenburg, Ph.D. link
Smart technology to identify leaks and enhance pipeline safety Cory Solyom link
Groundwater Monitoring Plan Considerations for Assessment and Corrective Action Sites Charles Hostetler, Bernd Rehm, Tom Karwoski, Nicole Kron link
The Horizontal Reactive Treatment Well (HRX Well®): A New Remediation Technology for In Situ Contaminant Flux control Craig Divine, Jesse Wright, Jack Wang, and Margaret Gentile link
The History of CCR Beneficial Use and its Future using Stored CCR as the Main Source: A Strategy to Properly Profile Stored Products Russell B. Stapp link
Upgrading the properties of Fly-Ash from long-term storage, with simultaneous deagglomeration, drying & classification using Atritor technology Scott Coley link
Challenges in CCP Management in Europe Fabrice Fayola, Joachim Feuerborn link
CCR Beneficial Use Data Capture and Reporting Joe Ploetz, Kevin Foody link
To cap or to excavate, and what happens next – An evaluation of ash basin closure alternatives using flow and transport modeling as a decision-making tool Rong Yu, Eric Hicks, and Johnathan Ebenhack link
SOLAR ON CCR: RE-PURPOSING OF COAL COMBUSTION RESIDUAL UNITS Doug Kilmer link
Polymer-Free Geosynthetic Clay Liner for Containment of Aggressive Leachates Trevor Walker, M.Sc.Eng., P.E., Stefan Niewerth, PhD link
Use of Coal Ash in Transportation Structures in Indiana Sung Min Yoon and Nayyar Siddiki link
ARCGIS Online for Interactive Database Management Tanya Walkenbach, Ph.D., Kevin Carpenter, Jean Kugel, P.E.,Gregory Hebeler, Ph.D., P.E. link
Evaluation of Remedial Actions at Coal Combustion Residuals (CCR) Sites through Coupled Hydrogeological-Geochemical Reactive Transport Modeling PJ Nolan, Bill Deutsch, and Rens Verburg link
In-situ Remediation of Sulfate Contamination Dr. Alex Krichevsky link
Managing and Visualizing Data for Alternate Source Demonstration Support Darby Litz, P.G. and Sarah Holmstrom, P.G. link
Lessons Learned from 30 Years of Construction Quality Assurance in Geosynthetic Lined Containment Systems Glen W. Toepfer link
Dewatering Ash – Progress Over the Last 5 Years Paul Schmall, Ph.D., P.E., and Greg Landry, P.E. link
CCR Removal and Its Effects on Soil and Groundwater Geochemistry Sarah Holmstrom, P.G. and Clint Miller, Ph. D., P.G., L.G. link
MSE BERM: OVERCOME SITE CONSTRAINTS AND MAXIMIZE AIR SPACE Johnny Lowe, PE, Jason Thaxton link
An Interactive Process: Evaluating Remediation Systems using Numerical Simulations Johnathan Ebenhack, Rong Yu, and Eric Hicks link
iButton Thermocon: Economically Measure Mortar Temperature Generation to Estimate Time of Set Carl Howard link
SELEN-IX™ APPLIED TO COAL ASH POND CLEAN-UP Brent Baker, Veneil Sundar, and Alex Soto link
Ash Behavior in the Capillary Fringe Michael Owens, P.E., J. Kramer Hall, Nick McClung, P.E., Paul Schmall, Ph.D., P.E. link
Data/Quality-Based Geomembrane Field Seaming Evaluation for CCR Projects Evan Andrews, P.E., Kenneth R. Daly, P.E. link
Whole effluent toxicity (WET) assessments and experimental considerations for evaluating coagulation agents and polymers for wastewater treatment of coal combustion products Alexandra N. Steele, Konrad J. Kulacki, Margaret L. Fleming, and William L. Goodfellow, Jr. link
Meeting Fly Ash Demand Through Ash Harvesting and Beneficiation Eric Effinger link
Benefits of numerical flow and transport modeling applied to CCR site characterization, remedial design, and closure Johnathan Ebenhack, Rong Yu, and Eric Hicks link
Resource Utilization Categorization Standard of Fly Ash for Coal-fired Power Plants Jinder Jow, Yang Dong, Qiao Li link
Alternative Liner Demonstration at a CCR Surface Impoundment at Great River Energy’s Coal Creek Station Craig Schuettpelz, Todd Stong, Jennifer Charles, Shane Stockdill link
Design Considerations for Closure of Coal Combustion Residuals (CCR) Ash Ponds Matthew M. Voss, P.E., C.F.M.; Rosanna M. Saindon, P.E., R.G. Ph.D. link
Driven Sheetpile Wall Seepage Barrier Construction in Deep Ponded CCR Zachary K. Williams, Ryan T. Smith, PE, and Anthony Sak, PE link
Geostructural Construction in Ash: An Update on the Largest Geostructural Work to Date Ryan T. Smith, PE and Anthony Sak, PE link
Attenuation and Source Zone Depletion of Boron from Coal Combustion Residuals in Groundwater J. P. Brandenburg and Dave Hagen link
Identifying Green and Sustainable Uses for Legacy Coal Combustion By-Products to Protect Maryland’s Natural Resources Robin Lee, Matt Erbe link
Fundamentals of Testing Stabilized Coal Combustion Residuals for Encapsulation and Beneficial Use Christopher D. Hardin, P.E., Paul Schmall, P.E., Norbert Hector link
Evaluation of Methods to Differentiate CCR from Native Soil or Fill with Similar Visual/Physical Characteristics to Successfully Facilitate CCR Removal Trent Godwin, P.G., Kevin Stephenson, P.G., Stephen K. Wilson, P.G. link
Outage Wash Wastewater Treatment Alternatives Under Revised ELG/CCR Requirements David Donkin link
The Sky’s the Limit May Raad link
Removal of Iron-content Magnetic Fraction from Fly Ash after Ecibastuz Coal Burning Dosmukhamedov N.K., Kaplan V.A., Zholdasbay E.E., Daruesh G.S., Argyn A.A. link
Alumina and Silica Produced by Chlorination of Power Plant Fly Ash Treatment Kaplan Valery, Dosmukhamedov Nurlan, Zholdasbay Erzhan, Daruesh Galamat, Argyn Aidar link
Geotechnical Investigation of Fly Ash Composite Materials for Filling Mine Voids Dr. Hrushikesh Naik, Dr. Manoj Kumar Mishra, Dr. Karanam Uma Maheswar Rao link
Resource Utilization Categorization Standard of Fly Ash for Coal-fired Power Plants Jinder Jow, Yang Dong, Qiao Li link
Engineering the Process of CCR Impoundment Closure Christopher Lewis, Donald Grahlherr, Jeffrey Huen, Steven Turner link
Pavement innovation down-under, CCPs rigid and flexible pavement applications Anna Kristina Mendoza, Justin Moss, Craig Heidrich, Bill Martin, and Geoff Hines link
Global opportunities and challenges for coal combustion products with a Circular Economy Craig Heidrich, Joachim Feuerborn link
Contact Us

Have questions about WOCA 2021? Send us a message and one of our team members will get back to you as soon as possible!

Not readable? Change text. captcha txt

Start typing and press Enter to search