NEMA,LLC

Contaminant Transport and Fate Refresher: An Update on Contaminant Behavior in Soil and Groundwater - Renton, WA

  • November 20, 2019
  • 8:00 AM
  • November 21, 2019
  • 5:00 PM
  • Larkspur Landing, 1701 East Valley Road, Renton, WA 98055

Registration

  • 2 or more people

Register

November 20 - 21, 2019, 8 A.M. to 5 P.M. (2 Days)

Larkspur Landing - Main Conference Room
1701 East Valley Road, Renton, WA 98055 [directions]


Course Reviews (4.8/5): 


Abstract: This course provides a practical overview of contaminant behavior in soil and groundwater with an emphasis on petroleum, chlorinated solvents, per- and polyfluoroalkyl substances (PFAS), and metals. The material is intended for consultants and regulators managing contaminated sites. Course content is constantly updated and includes new approaches for characterizing contaminant distribution and hydrogeology in the subsurface.


Note: This course is preceded by the Chemistry Refresher for Environmental Professionals on November 19, 2019, which is recommended for those seeking a review of environmental chemistry principles. Attendees of both classes receive the group rate ($640 for 3 days of training).


Course Topics:
Transport and Fate Overview
  • Potential Fates of Contaminants

  • Advective Transport

  • Mechanical Dispersion

  • Chemical Dispersion

  • Matrix Storage
  • Back Diffusion
  • Effective Solubility and Raoult's Law
  • High Resolution Site Characterization

3- and 4-Phase Equilibrium Partitioning

  • 3- and 4-Phase Mass Distribution

  • Le Chatelier's Principle 
  • Applications of Kd, Koc, foc, Kow, and KH

  • NAPL and the One Percent Rule

  • Metal Sorption and pH

  • Desorption Rates

Subsurface Transport

  • Soil Properties

  • Contaminant Infiltration

  • Hydrogeology Overview

  • Three Point Problem

  • Retardation Factors

  • Contaminant Velocity

  • Diving Plumes

  • Permeability vs. Gradient

Nonaqueous Phase Liquid (NAPL) Transport

  • LNAPL Transport and Distribution Scenarios
  • Saturation and Recoverability

  • Specific Retention (Sr)

  • Concentration of Saturation (Csat)

  • DNAPL Transport and Mass Distribution

  • 14-Compartment Model

Vapor Transport

  • Henry's Law and Vapor Pressure
  • Contaminant Vapor Transport Processes

  • Petroleum Vapor Attenuation

  • Chlorinated Vapor Attenuation

  • Preferential Pathways

  • Barometric Pumping
Natural Attenuation
  • Natural Attenuation Processes

  • Lines of Evidence

  • Decay Rates

  • Degradation Rate Tools

  • Estimating Restoration Time Frame

Focus on Hydrocarbon Contamination

  • Gasoline and Diesel Chemistry

  • Properties of BTEX, Oxygenates, and Additives

  • Soil Retention

  • Ethanol Cosolvation and Plume Elongation

  • Natural Attenuation Processes

  • Geochemical Indicators
  • Plume Behavior and Redox Zones

  • BTEX Plume Lengths
  • Monitoring Parameters

Focus on Chlorinated and Fluorinated Hydrocarbon Contamination

  • Chlorinated Solvent Chemistry and Sources

  • PFAS Chemistry and Sources

  • Plume Behavior Classification

  • Degradation Pathways

  • Dehalogenating Microbes
  • Role of Hydrogen Gas
  • Geochemical Indicators
  • Biotransformation Rates
  • Zero-Valent Iron (ZVI)
  • Monitoring Parameters

Focus on Metal Contaminants

  • Forms of Metal Contamination
  • Complexation and Speciation

  • Methylation and Demethylation

  • Redox and Microbial Effects

  • Cation/Anion Exchange

  • Sorption to Iron Oxides

  • Variably Charged Soils

  • Sulfide Precipitation

  • Dissolved Solids vs. Metal Mobility

  • Facilitated Transport

  • Metal Fixation and Aging

  • Scenarios Approach to Metal Attenuation


Intended Audience: Environmental professionals seeking an improved understanding of contaminant behavior in soil and groundwater.


Education Level: Intermediate and advanced topics will be covered. A review of transport and fate principles is included to ensure all levels benefit from attending.


Course Materials: Course proceedings, worksheets, and reference material.


Credit: 15 PDHs and 1.5 CEUs for completing 15 hours of instruction.


Registration: $495 (save $100 per person when registering a group of two or more: $395 per person, $645 for the 3-day series: Chemistry Refresher and Transport & Fate Refresher, Nov. 19 - 21, 2019). Register online or by calling us at (800) 385-0783.


Accommodations: Larkspur Landing (workshop location). Click here for a map of nearby hotels.


Parking: Free on-site parking.

Mass Transit: Click here for mass transportation options. Or you can use the King County Metro Trip Planner.

About the Instructor: Erick McWayne has twenty-five years of professional experience in environmental quality management and teaching related courses. As a consultant, he managed contaminated groundwater, soil, and surface water projects for the Department of Defense and other clients. He currently provides consulting support to environmental projects and teaches courses in contaminant chemistry, transport and fate, natural attenuation, geochemistry, hydrogeology, remediation, stormwater, and surface water management with the University of California Davis and the National Environmental Management Academy.

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