By - Jon Brown

Coal Ash Impoundments: Closure Methods and Challenges
August 12-13, 2019 | Denver, CO

Download PDF


With the impact and enforcement of the ever-changing Federal Coal Combustion Residuals (CCR) Rule, owners and operators of coal ash impoundments have been engaged in and are facing the closure of their impoundments. This symposium shares the expertise of industry leaders from multiple service providers. The purpose of the symposium is to give individuals involved with closure projects either directly or indirectly, a more comprehensive understanding of the process and steps involved in dewatering and closure of these impoundments and related issues for these sites.

If this event is of interest you may also be interested in this related event

Coal Plant Closure: A Detailed Look, August 13-14, 2019 in Denver, CO

The program will dive into detail on a variety of those steps such as: geotechnical work, dewatering, water treatment, stability issues, groundwater monitoring and corrective action, some construction approaches and methods, and legal and regulation challenges facing these projects. Attendees will gain real-world knowledge that can be applied directly to their projects.

Learning Outcomes         

  • Review the CCR Rule evolution and potential future changes
  • Review the information to look for in geotechnical investigations and receive recommendations
  • Engage in a discussion on ash stabilization and the steps needed and taken during the dewatering process
  • Listen to experts discuss structural stability issues and their solutions for closure
  • Discuss the options for dewatering
  • List options for surface and groundwater monitoring, planning, action and remediation
  • Discuss ash recycling and beneficial reuse possibilities and methods of capture



EUCI has been accredited as an Authorized Provider by the International Association for Continuing Education and Training (IACET).  In obtaining this accreditation, EUCI has demonstrated that it  complies with the ANSI/IACET Standard which is recognized internationally as a standard of good practice. As a result of their Authorized Provider status, EUCI is authorized to offer IACET CEUs for its programs that qualify under the ANSI/IACET Standard.

EUCI is authorized by IACET to offer 1.0 CEUs for this event.


Requirements for Successful Completion of Program

Participants must sign in/out each day, be in attendance for the entirety of the course to be eligible for continuing education credit.

Instructional Methods

Case studies, PowerPoint presentations, and group discussion will be used in this event.


Monday, August 12, 2019

8:00 – 8:30 a.m. :: Registration & Continental Breakfast

8:30 a.m. – 4:00 p.m. :: Course Timing

12:00 – 1:00 p.m. :: Group Luncheon

The Evolution of CCR Rule Requirements

  • Addressing court decisions
  • Rule amendments
  • Potential future EPA rulemakings
    • Impoundment closure
    • Groundwater

Compaction for Ground Improvement, Settlement Removal and Permeability Reduction in Soils and Ash Deposits

  • Commonly used Compaction Methods
  • High Energy Impact Compaction
    • Verification technologies
    • Vibratory roller compaction
    • Rapid impact compaction
    • Dynamic compaction
    • Deep vibratory compaction
  • Comparison Factors
    • Depth of influence
    • Surface coverage
    • Productivity
    • Testing
    • Certification technologies/methods

Coal Ash Beneficiation

  • Encapsulated Beneficial Use Overview
    • Ash as a performance-enhancing additive
      • Concrete
      • Other materials
    • Incentives for Beneficial Uses
      • Reducing disposal costs
      • Environmental stewardship

In-Depth Water Treatment

  • Traditional Water Treatment Techniques
  • Project-Specific Treatment Systems
    • Arsenic
    • Selenium
    • Thallium
    • Other metals
  • Pontoon Systems for Decanting Surface Water
  • Collection Systems for Removing and Treating Interstitial Water
  • Groundwater Collection and Treatment Systems

Tuesday, August 13, 2019

8:00 – 8:30 a.m. :: Continental Breakfast

8:30 a.m. – 12:00 p.m. :: Course Timing

Geotechnical Behaviors of Ash

  • Geotechnical Differences Between Soil and Ash
  • Field vs Laboratory Testing
  • Moisture Sensitivity
  • Capillarity
  • Vibration Sensitivity

Necessary Geotechnical Behaviors for Pond Closure

  • Slope Stabilization 
  • Providing a Stable Crust
  • Mitigating Localized Liquefaction
  • Ash Stabilized in Place

Methods of Dewatering Ash

  • Drainage Techniques
    • Rim ditching and sumping
    • Wellpoints
    • Deep wells
    • Other drainage methods
  • Selecting a Drainage (Dewatering) Technique
  • Safe Access for Dewatering System Installation
  • Geotechnical Investigations and Pilot Tests

Geo-Structural Improvements in Ash

  • In-Situ Mixing
  • Retained Excavations in Ash
  • Barrier Walls
  • Grouting Techniques

Instrumentation and Monitoring

  • Evaluation of Geotechnical Data
  • Monitoring for Liquefaction
  • In-Situ Measurements of Shear Strength

Case Studies in Ash Stabilization

  • Geo-Structural Applications in Ash
  • Shallow & Deep Ponds
  • Lined and Unlined Impoundments

Water Treatment Overview

  • Ponded Water
  • Ash Pore Water
  • Available Treatment Technologies

An Integrated Approach to Closure

  • Relationship Between Schedule, Safety, Quality, and Cost
  • Project Acceleration with Early Dewatering


Amy Antoniolli, Counsel, Schiff Hardin

Charles Davis, Landpac Ground Engineering Group

Bill Fedorka, P.E., VP of Engineering & Projects, The SEFA Group

Greg Landry, PE, Chief Dewatering Engineer, Moretrench

Paul Schmall, PhD, PE, Chief Engineer, Moretrench


Denver Marriott South at Park Meadows

10345 Park Meadows Drive

Lone Tree, CO 80124

Reserve your room:

please call 1-303-925-0004

Room Block Reserved For:

Nights of August 11 – 13, 2019

Room rate through EUCI:

$184.00 single or double plus applicable taxes
Make your reservations prior to July 21, 2019.



Please Note: Confirmed speakers do not need to register and are encouraged to participate in all sessions of the event. If you are a speaker and have any questions please contact our offices at 1.303.770.8800

EventEarly Bird Before
Friday, July 26, 2019
Standard RateAttendees
Coal Ash Impoundments: Closure Methods and ChallengesUS $ 1195.00 US $ 1395.00

This event has the following related events:

Coal Plant Closure: A Detailed LookUS $ 1195.00 US $ 1395.00

Take advantage of these discounts!

  • Attend the Course and Coal Plant Closure: A Detailed Look and pay US $ 1,995.00 per attendee (save US $ 395.00 each)

Register 3 Send 4th Free!

Any organization wishing to send multiple attendees to these conferences may send 1 FREE for every 3 delegates registered. Please note that all registrations must be made at the same time to qualify.

Cancellation Policy

Your registration may be transferred to a member of your organization up to 24 hours in advance of the event. Cancellations must be received on or before July 12, 2019 in order to be refunded and will be subject to a US $195.00 processing fee per registrant. No refunds will be made after this date. Cancellations received after this date will create a credit of the tuition (less processing fee) good toward any other EUCI event. This credit will be good for six months from the cancellation date. In the event of non-attendance, all registration fees will be forfeited. In case of conference cancellation, EUCIs liability is limited to refund of the event registration fee only. For more information regarding administrative policies, such as complaints and refunds, please contact our offices at 303-770-8800


By clicking Accept or closing this message, you consent to our cookies on this device in accordance with our cookie policy unless you have disabled them. more information

By clicking Accept or closing this message, you consent to our cookies on this device in accordance with our cookie policy unless you have disabled them. You can change your cookie settings at any time but parts of our site will not function correctly without them. We use cookies during the registration process and to remember member settings.