Principles of Contaminant Transport and Fate in Soil and Groundwater Training: A Focus on Petroleum, Chlorinated Solvents, and Metals – Bellevue, WA

  • April 25, 2017
    8:00 AM
  • April 26, 2017
    5:00 PM
  • Hyatt House Seattle/Bellevue, 3244 139th Avenue SE, Bellevue, Washington, 98005

Registration

April 25 – 26, 2017, 8 A.M. to 5 P.M. (2 Days)
Hyatt House Hotel and Conference Center – Bellevue
3244 139th Ave. SE, Bellevue, WA 98005 [directions]


Overview: This course provides a practical overview of contaminant behavior in soil and groundwater with an emphasis on petroleum, chlorinated hydrocarbons, and metals. The material is intended for consultants and regulators managing contaminated sites. The course begins with an overview of contaminant transport and fate, chemical partitioning, and hydrogeology; and concludes with focused sections on the fate and transport of petroleum hydrocarbons, chlorinated solvents, and metals.

 

Course Topics:

Transport and Fate Overview

  • Fates of Contaminants
  • Solute Advection
  • Mechanical Dispersion
  • Chemical Dispersion
  • Matrix Storage
  • Polarity and Solubility
  • Effective Solubility of Mixtures

3- and 4-Phase Equilibrium Partitioning

  • Chemical Phases
  • Le Chatelier’s Principle
  • Adsorption, Absorption, and Sorption
  • Applications of Kd, Koc, foc, Kow, and KH
  • NAPL and the One Percent Rule
  • Metal Sorption and pH
  • 3- and 4-Phase Mass Distribution of Gasoline
  • Desorption Rates

Subsurface Transport

  • Subsurface Zones
  • Soil Properties
  • Contaminant Infiltration
  • Hydrogeology Overview
  • Three Point Problem
  • Retardation Factors
  • Contaminant Velocity
  • Plume Diving

Nonaqueous Phase Liquid (NAPL) Transport

  • LNAPL “Shark Fin” Model
  • LNAPL Transport and Distribution Scenarios
  • Saturation and Recoverability
  • Specific Retention (Sr)
  • Concentration of Saturation (Csat)
  • DNAPL Transport and Distribution Scenarios
  • 14 Compartment Model

Vapor Transport

  • Contaminant Vapor Transport Processes
  • Petroleum Vapor Attenuation
  • Chlorinated Vapor Attenuation
  • Preferential Pathways
  • Barometric Pumping

Natural Attenuation

  • Natural Attenuation Processes
  • Lines of Evidence
  • Decay Rates
  • Estimating Restoration Time Frame
  • Degradation Rate Tools

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 Hydrocarbon Contamination

  • Chlorinated Solvent 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
  • Total Metals vs. Dissolved
  • Complexation and Speciation
  • Precipitation
  • Redox and Microbial Effects
  • Salt and Metal Mobility
  • Methylation and Demethylation
  • Cation/Anion Exchange
  • pH, Variably Charged Soils and Organic Matter
  • Metal Fixation (Aging)
  • Scenarios Approach to Metal Attenuation

Intended Audience: Environmental professionals seeking an improved understanding of the environmental behavior of petroleum, chlorinated solvents, and metals in soil and groundwater. This class follows the Chemistry Refresher for Environmental Professionals class (HYD-401) on April 18, 2017. The refresher class is recommended for those seeking a review of college chemistry and those who have not had a chemistry refresher in more than ten years.

Education Level: Introductory to intermediate.

 

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 group rate and Ecology staff). You may register online or by calling us at (800)385-0783.

 

Hotel Accommodations: Hyatt House (workshop location).Click here for map of nearby hotels.

Parking: Free on site.

Mass Transit: Click here for mass transportation options.

About the Instructor: Erick McWayne has over twenty-two years of professional experience in contaminated site management and teaching. As a consultant, he managed surface water and groundwater projects for the Department of Defense and other clients, and has taught over 100 related courses. He currently provides consulting support to water quality projects and teaches courses in contaminant chemistry, transport and fate, hydrogeology, natural attenuation, and remediation. He also holds two patents on permeable reactive weir technology.