Contaminated Large Plumes

Tuesday, August 8, 2017: 9:25 a.m.-4:50 p.m.
This session will focus on the characterization, remediation and/or management of contaminated groundwater plumes that can be characterized as "large" due to the total lifecycle costs, sheer physical size, or complexity.

Key topic areas will include:

  • Large Plume Hydrogeology - Rethinking Conceptual Site Models
  • Remedy Optization - Flux Based Solutions
  • Large Plume Cleanup: Fact or Fiction?
  • Combined Sites and Responsible Parties Perspective
  • Combined Remedies

Moderators:
John Wilson, Ph.D and Charles Newell, Ph.D., PE
9:25 a.m.
Introduction

9:30 a.m.
Converting Contaminated Aquifers into Purifying Filters: Colloidal Activated Carbon

Jeremy Birnstingl, Ph.D.1, Kristen Thoreson, Ph.D2, Scott Wilson3 and Craig Sandefur4, (1)Regenesis, San Clemente, CA, (2)Research & Development, REGENESIS, San Clemente, CA, (3)REGENESIS, San Clemente, CA, (4)Technical Services, REGENESIS, San Clemente, CA

PDF file
9:55 a.m.
Superfund Optimization Strategy: Extracting Lessons Learned on Managing Large Plumes from 640 Optimization Recommendations

Carlos Pachon, USEPA Superfund Program, Washington, DC

PDF file
10:20 a.m.
Refreshment Break

10:40 a.m.
Groundwater and PFAS: State of Knowledge and Practice

Seth Kellogg, PG, Roux Associates, Inc, Berkeley Heights, NJ

PDF file
11:05 a.m.
A Systematic Approach for Designing and Operating DGR™ Systems to Advance Plume Restoration

Marc W. Killingstad1, Jonathan Roller2 and Scott Potter, Ph.D., PE2, (1)Arcadis, Millersville, MD, (2)Arcadis, Newtown, PA

11:30 a.m.
A New Perspective on Flow, Transport, and Achievable Endpoints in Large Plume Restoration: Removing the Diffusion Road Block

Scott Potter, Ph.D., PE1, Joseph Quinnan, PE, PG2, Matt Schnobrich, P.E3, Fred Payne, Ph.D.2 and Kelly S. Houston, PE4, (1)Arcadis, Newtown, PA, (2)Arcadis, Novi, MI, (3)Arcadis U.S., Inc., Lexington, KY, (4)Arcadis, San Francisco, CA

PDF file
11:55 a.m.
Lunch (Provided)

1:10 p.m.
Will It Work Here? Site Assessment to Determine Suitability for Passive Treatment of Nitrogen

Marcel Belaval1, Danna Truslow2, Jeffrey Barbaro3, Denis R. LeBlanc4, Tom Cambareri5 and Scott Michaud6, (1)U.S. Environmental Protection Agency, Region 1, Boston, MA, (2)WaterVision LLC, Portsmouth, NH, (3)U.S. Geological Survey, Northboro, MA, (4)U.S. Geological Survey, Northborough, MA, (5)Cape Cod Commission, Barnstable, MA, (6)Cape Cod Commission, Barnstable, MA, MA

PDF file
1:35 p.m.
Abiotic Degradation of TCE by Naturally Occurring Magnetite can be Important in Large Plumes

John Wilson, Ph.D1, Todd Wiedemeier2 and David Freedman, Ph.D.3, (1)Scissortail Environmental Solutions, Ada, OK, (2)T.H. Wiedemeier & Associates, Inc, Sedalia, CO, (3)Clemson University, Anderson, SC

PDF file
2:00 p.m.
Groundwater/Lake Interactions Affect Large-Scale Migration and Attenuation of PFAS and VOC Plumes in the Cape Cod Aquifer, Massachusetts

Denis R. LeBlanc1, J.K. Böhlke2, Rose Forbes3 and Andrea Weber4, (1)U.S. Geological Survey, Northborough, MA, (2)U.S. Geological Survey, Reston, VA, (3)Air Force Civil Engineering Center, Otis Air National Guard Base, MA, (4)John A. Paulson School of Engineering and Applied Sciences, Harvard University, Cambridge, MA

2:25 p.m.
Aerobic Cometabolic Biodegradation to Treat Emerging Chemicals and Co-Contaminants in Dilute Plumes

Min-Ying Chu, Ph.D., PE, Peter Bennett, CHG, P.G. and Murray Einarson, P.G., C.E.G., Haley & Aldrich, Inc., Oakland, CA

PDF file
2:50 p.m.
Refreshment Break

3:10 p.m.
Big Plume; Little Remediation – Smart Characterization in Action

Nick Welty, PG1, Joseph Quinnan, PE, PG1 and Dan Rogers2, (1)Arcadis, Novi, MI, (2)Amsted Industries, Chicago, IL

3:35 p.m.
Remediation of Large Groundwater Plumes through Optimized Extraction System and Monitored Natural Attenuation

Noman Ahsanuzzaman, Ph.D., PE, EPA, EPA, Atlanta, GA

4:00 p.m.
Superfund Groundwater Remedy Performance

Linda Fiedler, USEPA, Washington DC, DC

4:25 p.m.
A New Framework for Accelerated Site Closure: Dynamic Remedy Implementation

Mark Klemmer, PE1, Scott Potter, Ph.D., PE2, William Parry3, Jonathan Roller2 and Fred Payne, Ph.D.1, (1)Arcadis, Novi, MI, (2)Arcadis, Newtown, PA, (3)CSX Transportation, Inc., Selkirk, NY

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