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In this seminar, Conceptual Site Model (CSM) development is discussed in detail. Risk calculation formulas are presented for carcinogens and non-carcinogens.


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

• Deal with critical issues in risk assessment with the increased understanding gained from the course
• Determine the need for site-specific risk assessment with a clear understanding of the applications and limitations of applying the generic
   soil and groundwater site condition standards
• Develop a conceptual site model and perform risk calculations
• Apply on your projects practical information received from an internationally recognized environmental expert that will save you time,
   effort and money.

Description

The use of Risk Assessment and Risk Management are gaining acceptance in all Canadian jurisdictions as consultants and their regulated industry clients are realizing the cost advantages of using this approach. There are also situations where the generic soil and groundwater data are not applicable and therefore a limited scope or site specific risk assessments must be used.

Conducting a screening, semi-quantitative, or quantitative Site Specific Risk Assessment (SSRA) offers insights into remediation and risk management approaches that are not apparent by mere application of the Generic Site Condition Standards.

In this seminar, Conceptual Site Model (CSM) development is discussed in detail. Risk calculation formulas are presented for carcinogens and non-carcinogens. Case studies by participants for CSM development and risk calculations enhance the understanding and use of these risk assessment aspects.  The use of the Johnson and Ettinger Models for vapour intrusion into buildings from contaminated soil and groundwater is illustrated for different site conditions.

Objective

To provide you with a comprehensive understanding of how:
• MOE developed the Generic Soil & Groundwater Site Condition Standards using the risk assessment approach.
• To determine the need for SSRA
• To conduct SSRA
• To apply the limited scope risk assessment to  different exposure pathways
• Use the Johnson and Ettinger Model to develop risk based standards for vapor intrusion into buildings from contaminated soil and groundwater.

The Seminar Presents:
Risk assessment approach used by MOE & CCME for petroleum hydrocarbons
Preliminary Quantitative Human Health Risk Assessment (PQHHRA) used by Health Canada for Federal Sites.
Limited Scope (Tier 2) Risk Assessment
SSRA to develop risk based standards
Tiered criteria used by CCME Canada Wide Standard for petroleum hydrocarbons in Soil

Who Should Attend

Project managers and environmental personnel who are involved in contaminated site assessment and remediation. Entry level and experienced professionals will benefit as well as users of environmental data.

Program Outline

 

Day I Regulatory Approach and General Framework for Site Specific Risk Assessment

Welcome, Introduction, Seminar Preview, Learning Outcomes and the Assessment Method

MOE Approach to SSRA
• General considerations in risk assessment
• Sensitive sites
• Needs for SSRA
• Generic USEPA/Health Canada Standard for SSRA

CCME Approach to Petroleum Hydrocarbons in Soil
• Hydrocarbon fractions
• Conceptual site model
• Human health component
• Ecological component

Human Health Risk Assessment Framework
• Hazard assessment/problem definition
• Toxicity assessment
• Exposure assessment
• Risk characterization

Development of Conceptual Site Models (CSM)
• Purpose of CSM
• Building the CSM
• Contaminant physical- chemical properties for CSM building

Case Study by Attendees
Development of CSM for petroleum hydrocarbons, chlorinated solvents and toxic metals

Day II Human Health Risk Assessment

Overview of Chemical Toxicology
• Chemical toxicology overview
• Exposure pathways
• Toxicology parameters used in risk assessment
• Concept of significant risk (science and public policy decisions)
• Accounting for exposure to chemicals in the ambient environment
• Concept of equivalent toxicity for dioxin like substances and polyaromatic hydrocarbons 

Human Receptor Characterization
• Receptor age groups
• Inhalation rates
• Water ingestion rates
• Soil contact rates
• Exposure duration
• Exposure frequency
• Exposure point concentration

Risk Characterization for Carcinogens and Non-Carcinogens
• Soil ingestion, dermal contact and inhalation calculations
• Groundwater ingestion, dermal contact and recreational uses
• Construction worker risk calculations

Johnson and Ettinger (J and E) Vapor Intrusion Model Calculations
• J and E conceptual site model for vapor intrusion
• Vapor intrusion into buildings from contaminated soil
• Vapor intrusion into buildings from contaminated groundwater
• Sensitivity analyses of the J and E Model

Case Studies by Attendees
• Soil ingestion and dermal contact
• Water ingestion
• Recreational surface water use
• Construction worker exposures by different routes

Uncertainty Analyses
• Uncertainty in sample analyses and measurement
• Uncertainty in toxicological parameters
• Uncertainty in exposure calculations
• Use of probabilistic risk assessment

Day III Ecological Risk Assessment

Ecological Risk Assessment Framework
• Hazard assessment/problem definition
• Toxicity assessment
• Exposure assessment
• Risk characterization

Ecological Receptors Characterization
• Species
• Population
• Food Chains
• Measurement End Points

Surrogate Receptors Proposed by MOE Amendments to O. Reg. 153/04
• Terrestrial
• Avian
• Aquatic

Limited Scope (Tier 2) Ecological Risk Assessment
• Pathway and receptor specific criteria
• Plants
• Soil invertebrates (Earth Worms)
• Mammals: meadow vole, shrew, red fox, sheep
• Birds: red winged black bird, american woodcock
• Aquatic protection values

Site Specific Ecological Risk Assessment
• On site valued ecological receptors
• Exposure equations and calculations
• Site use factors
• Food intake factors
• Primary, secondary and tertiary consumers

Uncertainty Analyses
• Uncertainty in sample analyses and measurement
• Uncertainty in Toxicological Parameters
• Uncertainty in Exposure Calculations

Case Studies by Attendees
• Former gas station adjacent to Lake Ontario (Metals and BTEX)
• Former industrial site adjacent to a creek (chlorinated solvents)

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

There will be a one hour lunch break each day in addition to a refreshment and networking break during each morning and afternoon session.

Daily Schedule:
8:00   Registration and coffee (1st day only)
8:30   Session begins
12:00 Lunch
4:30   Adjournment

Faculty

Nasrat Hijazi
Dr. Nasrat Hijazi, Ph.D., C.Chem., QPRA, ISO 14001 Auditor, MCIC is Principal of TDA Associates and former Professor in the Department of Physical & Environmental Sciences, University of Toronto at Scarborough (UTSC). Dr Hijazi has 35 years experience in environmental management consulting; hazardous and industrial waste management, site remediation, research and development.  He is an environmental expert in areas of compliance to environmental acts, regulations, standards, guidelines, policies and procedures.  Dr. Hijazi is actively involved in Continuing Engineering Education where he developed and taught professional development courses. Dr. Hijazi also served as the founding Chairman, President & CEO of the Canadian Environmental Industry Association-Ontario Chapter (ONEIA 91-92); Director of CEIA-National (92-93); and a member of various government and institutional advisory committees.  Dr. Hijazi received his B.Sc.(Chemistry) in 1970 from the American University of Beirut and a Ph.D. in 1973 from the University of Ottawa. Since 1981, Dr. Hijazi held senior positions at leading environmental consulting and management companies including: managing principal-in-charge/general manager of Dames and Moore, Canada Inc.(currently URS), vice president and general manager (Canadian Operations) of Clayton Environmental Group, and general manager of Sanexen International (Currently Sanexen Environmental Inc.). Dr. Hijazi formed TDA Associates in 1997 to provide cost effective and high quality professional training and consulting services.
Prerequisites & Certificates
Pre-Requisites

Certificates offered

1.8 CEU / 18 PDH


Cancellation Policy
To withdraw from a course, you must send a request, in writing, with the official receipt to our office. Fifteen or more business days in advance: full refund less $50.00 administration charge. Five to fifteen business days in advance: non-refundable credit of equal value for any future EPIC seminar within one year. Credits are transferable within your organization. In case of an unexpected event occurring after this time, you may send someone else to take your place without any additional cost.
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Here are some reviews of the training vendor.
The course was very well presented and the course instructor was absolutely amazing.
Reviewed by 2013
Our instructor, Stephen Lamming, was outstanding and a true expert in his field. He was able to complement the technical air monitoring information with practical real life examples which was highly beneficial. He is an excellent communicator and was highly interactive with the course attendees. This course was recommended to me because Stephen Lamming does an outstanding job. I was very impressed with this course and have subsequently recommended it to my colleagues.
Reviewed by 2012
Would have liked more interactive problem solving.
Reviewed by 2011
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