Course Catalogue.

After participating in this course, you will be able to:

• Delineate the extent of PHC impact on soil and groundwater in accordance with Phase Two Environmental Site Assessment Regulation.
• Apply efficient soil and groundwater sampling techniques for PHCs.
• Implement remediation techniques for soil impacted by PHCs.
• Employ remediation techniques for groundwater affected by PHCs.
• Conduct a risk assessment of PHC-impacted soil and groundwater and apply risk management measures (RMMs) as an alternative to cleanup.

Description
Remediation of soil and groundwater impacted by PHCs involves several in situ or ex-situ treatments comprising containment, separation and decomposition, which include biological, chemical, physical and thermal treatment methods.

Proper delineation of the soil and groundwater impact is the cornerstone for remediation, meeting the regulatory guidelines, risk-based remediation and/or risk management. To select the best treatment option for remediation, it is important to understand the nature, composition, properties, type of environment, fate, transport and distribution of the pollutant’s degradation mechanism, including chemical and biological decomposition. This two-day course provides practically applicable yet science-based instruction on delineation, remediation and risk management of soil and groundwater hydrocarbon contamination. Cost-effective field techniques for investigating petroleum contamination will be reviewed in detail. Data interpretation and validation procedures will be presented. A case example will also be discussed. 

Who Should Attend
Technicians and Technologists Involved in Soil and Groundwater Sampling and Assessment • Consultants and Public Sector Environmental Specialists Dealing with Brownfields and Contaminated Soil and Groundwater Assessment, Remediation and Risk Assessment.

Course Syllabus

Day I: Site Assessment and Delineation

Welcome, Introduction, Learning Outcomes and the Assessment Method

Petroleum Hydrocarbon Chemistry Basics

• Typical composition of crude oil, gasoline and fuels
• Fractions, BTEX, and oxygenated additives
• Physical-chemical properties of PHC components

An Overview of Lighter (than Water) Non-Aqueous Phase Liquids (LNAPLs)

• Transformation of free product to dissolved phase

An Overview of PHC Fate and Transport in Soil and Groundwater

Soil Sampling Plans for Regulatory Delineation

Groundwater Sampling Plans for Regulatory Delineation

Overview of Human Health Risk Assessment for PHCs

Adjournment

Day II: Remediation Technologies

Big Picture Analysis; Cleanup, Risk-Based Remediation or Risk Management

In-Situ and Ex-Situ PHC Impacted Soil Remediation Methods

Physico-Chemical Methods

• Phase Separation
• Soil Washing
• Soil Vapor Extraction (SVE)
• Thermal Desorption
• Phase Separation
• Chemical Oxidation
• Pump and Treat Scheme

Biological Methods

• Phase Separation
• Air sparging
• Bioslurping
• Bioventing

Risk Management Measures (RMMs)

Soil Caps and Covers

Passive and Active Ventilation

Permeable Reactive Barriers (PRBs) for Groundwater Risk Management

Case Example

Questions and Answers and Feedback to Participants on Achievement of Learning Outcomes

Concluding Remarks and Final Adjournment