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Articles 6361 - 6390 of 52423
Full-Text Articles in Entire DC Network
Legacy Rule Implementation Deadlines, Lucas Carr, Eric Tlachac, Brian Hennings
Legacy Rule Implementation Deadlines, Lucas Carr, Eric Tlachac, Brian Hennings
World of Coal Ash Proceedings
Legacy Rule Implementation Deadlines: Examining the Agency vs. Industry Disconnect Authors Mr. Lucas Carr - United States - Ramboll Mr. Eric Tlachac - United States - Ramboll Mr. Brian Hennings - United States - Ramboll Abstract In May of 2023 the United States Environmental Protection Agency (USEPA) published a proposed draft expansion of the 2015 CCR Rule (40 C.F.R. Part 257, Subpart D) that would effectively remove the exemption of legacy CCR units. These units are broadly defined as CCR impoundments and landfills located at power stations that had closed prior to October 15, 2015, inactive landfills at operating power …
Wicking Wells - A Novel Method To Remediate Dissolved Solids In Groundwater, Shane Mcdonald
Wicking Wells - A Novel Method To Remediate Dissolved Solids In Groundwater, Shane Mcdonald
World of Coal Ash Proceedings
Wicking Wells, a new novel method to remediate dissolved solids in groundwater Authors Mr. Shane McDonald - United States - HDR Abstract A newly patented method for removing total dissolved solids (TDS) from groundwater has been developed at HDR. This method, called ‘wicking wells’, uses capillary media positioned to be just touching the water table in a purpose-designed well. The purpose-designed well taps the most contaminated groundwater, focusing on the highest TDS. The capillary media wicks the water to above the water table where heated dry air is passed across the media to evaporate the water. The produced water vapor …
Paper_Wicking Wells, A New Novel Method To Remediate Dissolved Solids In Groundwater, Shane Mcdonald
Paper_Wicking Wells, A New Novel Method To Remediate Dissolved Solids In Groundwater, Shane Mcdonald
World of Coal Ash Proceedings
A newly patented method for removing total dissolved solids (TDS) from groundwater has been developed at HDR. This method, called ‘wicking wells’, uses capillary media positioned to be just touching the water table in a purpose-designed well. The well taps the most contaminated groundwater, focusing on the highest TDS. The capillary media wicks the water to above the water table where heated dry air is passed across the media to evaporate the water. The newly-moistened air is exhausted to the atmosphere and any dissolved solids will precipitate and be captured on the capillary media. In this way, the most onerous …
Ccr Facility Instrumentation For Closure Programs, Zachary Boucias, Pierre Gouvin, Dale Evans
Ccr Facility Instrumentation For Closure Programs, Zachary Boucias, Pierre Gouvin, Dale Evans
World of Coal Ash Proceedings
CCR Facility Instrumentation for Closure Programs Authors Mr. Zachary Boucias - United States - Geo-Instruments Mr. Pierre Gouvin - United States - Geo-Instruments Mr. Dale Evans - United States - RECON Abstract CCR Facility Instrumentation for Closure Programs Zach Boucias 1 Dale W. Evans, P.E. 2 1 Keller - Geo-Instruments – Chicago, Illinois 2 Keller - Remedial Construction Services, L.P. (RECON) – Evergreen, Colorado Whether CCR facility closure is performed using clean closure or closure-in-place processes, various work elements can substantially benefit using instrumentation to provide the data and drive the decisions needed to support safe productive site operations, reduce …
Making Use Of The Useless, Peeter Paaver
Making Use Of The Useless, Peeter Paaver
World of Coal Ash Proceedings
The durability of mortars and concrete with a high volume of Ordinary Portland Cement (OPC) substituted by a fly ash calcium sulfoaluminate binder Authors Dr. Peeter Paaver - Estonia - University of tartu Abstract The durability of mortars and concrete with a high volume of Ordinary Portland Cement (OPC) substituted by a fly ash calcium sulfoaluminate binder is investigated in this study. The utilization of circulating fluidized bed combustion (CFBC) boilers imposes limitations on the recycling of fly ash due to its low combustion temperature. This low temperature inhibits the formation of reactive calcium silicate minerals and diminishes the cementation …
Kentucky Utilities Ghent Atb 2 Ccr Pond Closure, Steven Turner, Jeffrey Heun
Kentucky Utilities Ghent Atb 2 Ccr Pond Closure, Steven Turner, Jeffrey Heun
World of Coal Ash Proceedings
The Closure and Capping of Ash Treatment Basin 2 at Kentucky Utilities Ghent Generating Station Authors Mr. Steven Turner - United States - Tetra Tech, Inc. Mr. Jeffrey Heun - United States - Louisville Gas and Electric/Kentucky Utilities Abstract Ash Treatment Basin 2 (ATB2) is a 150-acre coal ash pond located in Ghent, Kentucky. It served as a depository for Coal Combustion Residuals (CCR) resulting from electrical generation activities at the Kentucky Utilities Ghent Generating Station. Closure activities began in 2017, liner installation finished in 2023, and overall site work ended in 2024. Closure activities began with the installation of …
Planning & Implementation Of Closure By Removal In Louisiana, Angela Harrigal, Denise Radaich
Planning & Implementation Of Closure By Removal In Louisiana, Angela Harrigal, Denise Radaich
World of Coal Ash Proceedings
Planning and Implementation of Closure by Removal (Clean Closure) In Louisiana Authors Ms. Angela Harrigal - United States - AECOM Ms. Denise Radaich - United States - GeoEngineers, Inc. Abstract Cleco, a Gulf Coast utility is closing their ash impoundments at the Dolet Hills Power Station located in Mansfield, Louisiana. Ash Basin No. 1, Ash Basin No. 2 and the Secondary Pond are commonly referred to collectively as “the bottom ash ponds” and are permitted under AI# 585/GD-031-1551/P-0037. This presentation will focus on some of the unique aspects of clean closure in Louisiana and provide a holistic project overview from …
Coal Combustion Residual Characterization For Beneficial Use, Ross Gorman
Coal Combustion Residual Characterization For Beneficial Use, Ross Gorman
World of Coal Ash Proceedings
Coal Combustion Residual Characterization for Beneficial Use Authors Mr. Jimmy Knowles - United States - The SEFA Group, LLC Abstract Characterization of coal ash impoundments is a critical early step for a successful harvesting and beneficiation project. Thorough characterization of a CCR impoundment is necessary to determine the material's suitability for beneficial use. It is also necessary to determine which type of beneficiation is required and the design specifications of the beneficiation technology system. Pond or Basin Characterization is vital to design a safe harvesting or excavation plan that optimizes beneficiation and use of the material in the impoundment. This …
Implementing The Final Ccr Legacy Rule, Robert Glazier, Martha Thomsen, John Seymour, Victor Modeer
Implementing The Final Ccr Legacy Rule, Robert Glazier, Martha Thomsen, John Seymour, Victor Modeer
World of Coal Ash Proceedings
Implementing the Final CCR Legacy Rule Authors Mr. Robert Glazier - United States - Geosyntec Consultants, Inc. Mrs. Martha Thomsen - United States - Baker Botts LLP Mr. John Seymour - United States - Geosyntec Consultants, Inc. Mr. Victor Modeer - United States - Vistra Abstract Inactive surface impoundments at inactive power stations (legacy units) were exempt from the 2015 Federal Coal Combustion Residuals (CCR) Rule. In August 2018, the U.S. Court of Appeals for the D.C. District vacated and remanded that exemption back to the U.S. Environmental Protection Agency (USEPA). On October 14, 2020, USEPA published an Advance Notice …
Impoundment Closure Using Discrete In-Situ Solidification Site Update, Tim Silar, John Magee
Impoundment Closure Using Discrete In-Situ Solidification Site Update, Tim Silar, John Magee
World of Coal Ash Proceedings
Impoundment Closure Using Discrete In-situ Solidification – Site Update Authors Mr. Tim Silar - United States - Silar Services Mr. John Magee - United States - Silar Services Abstract In accordance with USEPA guidance, the protection of groundwater and/or surface water is driving CCP impoundment closures. This presentation will describe an impoundment closure where discrete in-situ solidification is being implemented to achieve USEPA’s requirement of controlling the vertical and horizontal movement of groundwater. The technology, which has gained regulatory approval, will hydraulically isolate the ash from the groundwater by constructing a hydraulic barrier at the bottom of the impoundment using …
Paper_A Practical Approach To Manufacturing Sintered Lightweight Aggregates From Unrecycled Waste Coal Ash, Yousif Alqenai, Mo Balapour, Mohammadamin Zooyousefin, Thuy Nguyen
Paper_A Practical Approach To Manufacturing Sintered Lightweight Aggregates From Unrecycled Waste Coal Ash, Yousif Alqenai, Mo Balapour, Mohammadamin Zooyousefin, Thuy Nguyen
World of Coal Ash Proceedings
The focus of this study was to manufacture sintered lightweight aggregates (LWA) using unrecycled landfill condition waste coal ash (LC-WCA) that has been exposed to a harsh weathering and storage environment for 15-20 years. WCA under field conditions typically consists of an intricate blend of fly ash, bottom ash, boiler slag, flue gas desulfurization, cenosphere, sand, rocks, shells, twigs, and various land minerals. This complicated raw material blend obtained from a Pennsylvania landfill underwent characterization to understand its physical and chemical composition. Microscopy revealed LC-WCA composition consisted of 9% field debris (size ≥600 μm), 43% bottom ash (size 600-75 μm), …
Paper_Coal Combustion Residuals – Productive, Reliable, And Sustainable Approaches To Remediation, Dave Donahue, Faizan Chowdhury, Max Swoboda
Paper_Coal Combustion Residuals – Productive, Reliable, And Sustainable Approaches To Remediation, Dave Donahue, Faizan Chowdhury, Max Swoboda
World of Coal Ash Proceedings
Coal combustion residuals (CCRs) are the second-largest waste material in the U.S., behind household garbage. As such, it is vital that CCRs are correctly managed to prevent environmental damage and safeguard human and animal health. With almost 5 billion tons of coal ash stored by utilities at more than 1,000 sites across the U.S. – whether in ponds as a wet slurry or in landfills as dry powder – preventing leaks into waterways or the air is an industry priority. Every day, Xylem’s experts help power plant operators safely manage CCRs by combining decades of on-the-ground expertise with cutting-edge technology …
Planning & Implementation Of Closure-By-Removal Paired With Beneficial Use, Jay Mokotoff, Angela Casbon-Scheller
Planning & Implementation Of Closure-By-Removal Paired With Beneficial Use, Jay Mokotoff, Angela Casbon-Scheller
World of Coal Ash Proceedings
Planning and Implementation of Closure by Removal Paired with Beneficial Use Authors Mr. Jay Mokotoff - United States - AECOM Mrs. Angela Casbon-Scheller - United States - CenterPoint Energy Abstract While there are numerous ash ponds containing saturated mixed CCR that are closing by removal, few have attempted to beneficially use the mixed CCR materials from these ponds. To comply with the CCR Rule, a large midwestern utility is closing their 170-acre valley-fill ash pond by removal and is successfully recycling the majority of the 6M cubic yards of mixed CCR materials. This presentation will focus on the advance planning …
Removal Of Selenium From Difficult-To-Treat Wastewaters Using An Innovative Reductive-Adsorptive Media, Patrick Mckeown, Madan Tandukar, Steve Woodard, Mike Nickelsen
Removal Of Selenium From Difficult-To-Treat Wastewaters Using An Innovative Reductive-Adsorptive Media, Patrick Mckeown, Madan Tandukar, Steve Woodard, Mike Nickelsen
World of Coal Ash Proceedings
Removal of Selenium from Difficult-to-treat Wastewaters Using an Innovative Reductive-adsorptive Media Authors Mr. Patrick McKeown - United States - ECT2 Dr. Madan Tandukar - United States - ECT2 Dr. Steve Woodard - United States - ECT2 Mr. Mike Nickelsen - United States - ECT2 Abstract Selenium is one of the more difficult-to-treat emerged contaminants, and is mostly prevalent in mining and power wastewater. In water and wastewater, selenium generally exists as soluble oxyanions, selenite (SeO32−) and selenate (SeO42−). Out of these, selenate is the more mobile and prevalent species, which also is more difficult to remove. With increasing focus on …
Best Practices In Implementing, Mark Rokoff
Best Practices In Implementing, Mark Rokoff
World of Coal Ash Proceedings
CASE STUDY: BEST PRACTICES IN IMPLEMENTING THE FACILITY EVALUATION REPORT (PER THE LEGACY CCR SI RULE) Authors Mr. Mark Rokoff - United States - Burns & McDonnell Abstract Corresponding to the proposed Legacy CCR Surface Impoundment Rules (Legacy Rule) published on May 18, 2023, Owner/Operators must initiate the efforts for compliance by first understanding the areas where CCR has accumulated within a plant’s facility outside of a regulated CCR unit. More specifically, one of the first, new tasks to comply with the proposed rule is to develop a Facility Evaluation Report (FER) in which the presence/absence of a CCR management …
Changes In The Nature Of Midwestern Fly Ash Over The Past Two Decades- I. Chemistry, Mineralogy And Beneficiation Potential, Bob Jewell, Anne Oberlink, Thomas Robl
Changes In The Nature Of Midwestern Fly Ash Over The Past Two Decades- I. Chemistry, Mineralogy And Beneficiation Potential, Bob Jewell, Anne Oberlink, Thomas Robl
World of Coal Ash Proceedings
Changes in the Nature of Midwestern Fly Ash Over the Past Two Decades: I. Chemistry, Mineralogy, and Beneficial Potential Authors Dr. Bob Jewell - United States - University of Kentucky Center for Applied Energy Research Ms. Anne Oberlink - United States - University of Kentucky Center for Applied Energy Research Dr. Thomas Robl - United States - University of Kentucky Center for Applied Energy Research Abstract Environmental regulations regarding coal combustion have become more stringent over time. The percentage of plants equipped with scrubbers in Kentucky increased from ~4% in 1978 to ~48% in 1997 to the point where flu …
A Practical Approach To Manufacturing Sintered Lightweight Aggregates (Lwa) From Unrecycled Waste Coal Ash (Wca), Yousif Alqenai, Mohammadamin Zooyousefin, Thuy Nguyen, Mo Balapour
A Practical Approach To Manufacturing Sintered Lightweight Aggregates (Lwa) From Unrecycled Waste Coal Ash (Wca), Yousif Alqenai, Mohammadamin Zooyousefin, Thuy Nguyen, Mo Balapour
World of Coal Ash Proceedings
A Practical Approach to Manufacturing Sintered Lightweight Aggregates (LWA) from Unrecycled Coal Combustion Ash (CCA) Authors Mr. Yousif Alqenai - United States - Drexel University Mr. Mohammadamin Zooyousefin - United States - Drexel University Ms. Thuy Nguyen - United States - Drexel University Dr. Mo Balapour - United States - SusMaX LLC. Mr. Yaghoob (Amir) Farnam - United States - Drexel University Abstract The focus of this study is to manufacture sintered lightweight aggregates (LWA) using unrecycled landfill condition coal combustion ash (CCA) that has been exposed to a harsh weathering and storage environment for 15-20 years. CCA under field …
Back To Basics, Paul Schmall
Back To Basics, Paul Schmall
World of Coal Ash Proceedings
CCR Dewatering – Back to the Basics Authors Dr. Paul Schmall - United States - Keller Abstract The increase in CCR pond closure activity spurred by the EPA’s 2015 rule publication has created a tremendous opportunity to innovate with respect to traditional methods of safely working around and on saturated CCR material. The volume of work and the speed at which it must be completed requires that the industry adapt in order to meet regulatory timelines. One technique that has been successfully implemented is the use of conventional construction dewatering technology to stabilize CCR by reducing and controlling pore pressures. …
Innovative Solutions For A Unique Ccr Facility Closure – A Case Study, Brittany Hebbeler, Nathan Bader, Shane Harris
Innovative Solutions For A Unique Ccr Facility Closure – A Case Study, Brittany Hebbeler, Nathan Bader, Shane Harris
World of Coal Ash Proceedings
The Tennessee Valley Authority (TVA) is in the process of closing the former CCR pond and landfill at the Shawnee Fossil Plant in Paducah, Kentucky. This presentation will be a case study of the unique project and the innovative solutions implemented throughout design and construction. During closure construction, free water was removed via pumping and a wellpoint dewatering system was necessary to remove interstitial water within the pond and allow for CCR placement within previously ponded areas. Over 4 million cubic yards of material has been moved from the landfill to contour and create closure grades in the former pond …
Manufacturing Of Leed Sustainable Building Materials From Previously Landfill Ccr, Randall Stremmel
Manufacturing Of Leed Sustainable Building Materials From Previously Landfill Ccr, Randall Stremmel
World of Coal Ash Proceedings
Manufacturing of LEED Sustainable Building Materials from Previously Landfilled Off-Spec Fly Ash Authors Mr. Randall Stremmel - United States - Pittsburgh Mineral and Environmental Technology Abstract This speech highlights the groundbreaking work of Brixx Technology in developing a patented process for producing sustainable building materials using previously landfill off-spec fly ash. Through extensive research and development, Brixx Technology has successfully demonstrated the viability of its technology through lab bench testing, a pilot plant, and a mass production facility in India. This paper focuses on their newly established facility in Ohio, where the innovative process transforms landfilled coal combustion residuals (CCR) …
Paper_Dry Fgd Byproduct Characteristics And Utilization In China – Development And Trends, Qingfa Su, Muh-Cheng Wu, Jianchun Wang, Cangeng Xu
Paper_Dry Fgd Byproduct Characteristics And Utilization In China – Development And Trends, Qingfa Su, Muh-Cheng Wu, Jianchun Wang, Cangeng Xu
World of Coal Ash Proceedings
Dry FGD process is a major FGD technology other than wet FGD process and has been widely used in China. In the last decade, it has been successfully applied not only to coal-fired power plants, but also to iron and steel sintering and pelleting plants, glass kilns, carbon black, aluminum, catalytic cracking, coking and other industry installations. In contrast to gypsum produced from wet FGD process, characteristics of dry FGD byproducts are often site-specific, depending on source flue gas compositions, unit operations, operating conditions, and other factors. These could affect dry FGD byproduct performance in utilization applications and generated products. …
Ash Alchemy- Ash Beneficiation In The Production Of Waste Liner Materials, Cyril Attwell, Kelley Reynolds-Clausen, Phenyo Mvuyana
Ash Alchemy- Ash Beneficiation In The Production Of Waste Liner Materials, Cyril Attwell, Kelley Reynolds-Clausen, Phenyo Mvuyana
World of Coal Ash Proceedings
Ash Beneficiation in the Production of Waste Liner Materials Authors Mr. Cyril Attwell - South Africa - ARC Innovations Dr. Kelley Reynolds-Clausen - South Africa - Eskom Holdings SOC LTD Ms. Phenyo Mvuyana - South Africa - Eskom Holdings SOC LTD Abstract Ash Beneficiation in the Production of Waste Liner Materials. Kelley Anne Reynolds-Clausen1, Phenyo N Mvuyana2 and Cyril N Attwell3 1Eskom Research, Testing and Demonstration, Eskom Holdings SOC Ltd, South Africa. [email protected]. 2Eskom Transmission, Eskom Holdings SOC, Ltd, South Africa [email protected]; [email protected] 3ARC Innovations, 83 Bonnyvale Road, .Norton Home Estates, Gauteng, South Africa. [email protected] Keywords: Alkali-activation, coal ash, liners, …
Considering The Big Picture, Andrew Rodzianko, Monica Moody
Considering The Big Picture, Andrew Rodzianko, Monica Moody
World of Coal Ash Proceedings
Considering the Big Picture: Planning and Designing for a Multiple CCR Landfill Site Authors Mr. Andrew Rodzianko - United States - AECOM Ms. Monica Moody - United States - AECOM Abstract The phasing and design challenges are numerous for any site looking to construct, operate, and close on-site CCR landfills while closing on-site impoundments. In some cases, it may be preferable to build multiple landfills, greatly increasing site-wide phasing, planning, and design elements to be considered. This presentation will review potential benefits and challenges such a site may face and discuss several specific planning and design elements for consideration. Specific …
Planning For The Future Of Beneficial Use, Gabe Lang, Don Fuller Ii, Nortey Yeboah
Planning For The Future Of Beneficial Use, Gabe Lang, Don Fuller Ii, Nortey Yeboah
World of Coal Ash Proceedings
Planning for the Future of Beneficial Use Authors Mr. Gabe Lang - United States - Watershed Geo Mr. Don Fuller II - United States - Stantec Mr. Nortey Yeboah - United States - Southern Company Abstract The future need for fly ash and other CCR’s for beneficial use purposes, following the decommissioning of fossil plants, has been well documented within the industry. Plant shutdowns will result in a market shortage for the ready-mix concrete and other industries that support key infrastructure within the U.S. In addition, CCR units are closing under the EPA CCR Rule, a process that will continue …
Pvc Liner Interface Friction & Slope Stability, John Klamut, Ron Harris, James Shields
Pvc Liner Interface Friction & Slope Stability, John Klamut, Ron Harris, James Shields
World of Coal Ash Proceedings
PVC LINER INTERFACE FRICTION AND SLOPE STABILITY Authors Mr. John Klamut - United States - GAI Consultants, Inc. Mr. Ron Harris - United States - GAI Consultants, Inc. Mr. James Shields - United States - GAI Consultants, Inc. Abstract PVC liners have been used for numerous CCR landfill liner systems. In general, the industry has moved away from the use of PVC liners in favor of HDPE or LLDPE geomembranes. An important reason for this shift is due to the veneer stability of PVC liner systems when compared to HDPE or LLPE geomembrane liner systems. The results of stability analyses …
Ccr Landfills – Part 2: Using A Graphical Interpretation With Model Simulations To Predict Groundwater Elevations During And After Ccr Landfill Construction, Jerry Wylie, Rong Yu
Ccr Landfills – Part 2: Using A Graphical Interpretation With Model Simulations To Predict Groundwater Elevations During And After Ccr Landfill Construction, Jerry Wylie, Rong Yu
World of Coal Ash Proceedings
State solid waste regulations require the post-settlement bottom elevation of the base liner system of a CCR landfill to be a minimum of 4 feet above the long-term seasonal high (LTSH) groundwater table prior to operation. During landfill sump construction, standing water was observed outside of and within the sump footprint. Because the landfill base liner had been placed, direct groundwater measurements were not feasible by installing piezometers within the sump. Using groundwater elevation data from piezometers outside of the landfill, historical measurements within the landfill near the sump, data from surveys and photogrammetry, and previous groundwater flow model simulations, …
The Legacy Ash Rule- Can Beneficial Reuse Be A Solution, Tom Kierspe
The Legacy Ash Rule- Can Beneficial Reuse Be A Solution, Tom Kierspe
World of Coal Ash Proceedings
THE LEGACY ASH RULE: CAN BENEFICIAL REUSE BE A SOLUTION? Authors Mr. Tom Kierspe - United States - The SEFA Group, LLC Abstract Tom Kierspe, P.E.1 1The SEFA Group, 219 Cedar Road, Lexington, SC 29073 KEYWORDS: Coal Ash Beneficiation, Beneficial Reuse, Encapsulated Reuse, Coal Ash Recycling, Thermal Beneficiation, Pond Reclamation, STAR Process, Stakeholders, CCP Impoundments, Characterization ABSTRACT On May 18, 2023, EPA proposed changes to the CCR regulations for inactive surface impoundments at inactive electric utilities, referred to as “legacy CCR surface impoundments”. With the final rule currently proposed to be issued April 2024, utilities are reevaluating these sites. Much …
Understanding The Challenges To Establishing Suitable Groundwater Monitoring Systems, Wayne Weber, James Feild, Rob Heimbach, Chris Hoglund
Understanding The Challenges To Establishing Suitable Groundwater Monitoring Systems, Wayne Weber, James Feild, Rob Heimbach, Chris Hoglund
World of Coal Ash Proceedings
Understanding the Challenges of Establishing Suitable Groundwater Monitoring Systems for Compliance with the Legacy Rule Revisions to CCR Regulations. Authors Mr. Wayne Weber - United States - Burns & McDonnell Dr. James Feild - United States - Burns & McDonnell Mr. Rob Heimbach - United States - Burns & McDonnell Mr. Chris hoglund - United States - Burns & McDonnell Abstract The “Legacy Rule” revisions of Coal Combustion Residuals (CCR) regulations for surface impoundments and CCR management units at inactive and active plants, as appropriate, includes requirements to establish a groundwater monitoring system consisting of a network of groundwater wells, …
Applying Ccr Lessons Learned To Legacy Rule Implementation, Sarah Holmstrom, Greg Tieman
Applying Ccr Lessons Learned To Legacy Rule Implementation, Sarah Holmstrom, Greg Tieman
World of Coal Ash Proceedings
Applying CCR Lessons Learned to Legacy Rule Implementation Authors Mrs. Sarah Holmstrom - United States - TRC Mr. Greg Tieman - United States - TRC Abstract Since the Coal Combustion Residuals (CCR) Rule first went into effect in 2015, compliance monitoring programs, closure plans and remedy selection strategies have been established and implemented to expeditiously comply with the self-implementing rule on a site-by-site basis. Over that timeframe, USEPA has released numerous decisions and opinions (e.g., Part A, Part B) regarding the achievement and demonstration of compliance with the CCR Rule, including but not limited to comments regarding adequacy of detection …
Constructing A Landfill In A Former Ccr Basin, Kory Anstead
Constructing A Landfill In A Former Ccr Basin, Kory Anstead
World of Coal Ash Proceedings
Design and Construction Challenges with Construction of a Landfill in a Former CCR Basin Authors Mr. Kory Anstead - United States - AECOM Abstract Utilizing best engineering practices and discussing lessons learned associated with challenges encountered during construction of a landfill for CCR materials in a former CCR basin. Challenges encountered included higher than anticipated groundwater conditions, presence of rock at higher elevations, not feasible to construct one of the sediment basins due to ash excavation sequence, softer subgrade conditions, and storm water management. These challenges were mainly the result of limitations in access to investigate future landfill area located …