Description:

**Note - For every course we have implemented live stream remote attendance options for those who prefer a no-contact alternative to in-person attendance.  You will need a computer and an internet connection.  We will follow the maximum in-person meeting size as per health authorities and if recommended we will only offer remote attendance.

If conditions permit, you are welcome to attend the course in-person, we likely will have between 5 to 10 in-person attendee's in a large room to provide safe spacing.  We also wipe every surface down and provide hand washing and disinfectant wipes as a courtesy.  If you would like more information or have any questions, please contact us via email or phone 425 270 3274.

This course provides an overview of the vapor intrusion exposure pathway including its scientific foundation, regulatory framework, and the technical aspects of investigating and remediating contaminated vapor sites. The class will cover topics such as: screening sites for potential vapor intrusion concerns, conducting field investigations, sampling techniques, data analyses, exposure point calculations, the Johnson and Ettinger predictive model, vapor intrusion risk assessment, vapor intrusion mitigation, and remediation. Participants will work through practical problems and typical site scenarios based on case studies of established vapor intrusion sites. This course provides a comprehensive introduction for those new to the field, and will also provide insights, data analysis techniques, and the latest research for more advanced participants.

Intended Audience:

Environmental professionals seeking an improved understanding of vapor migration and intrusion with an emphasis on vapor assessment and modeling. The material is intended for practitioners working on remediation of hazardous substance release sites and brownfields redevelopment.

Continuing Education Units: 1.30 CEUs

More Information

Course Topics

Introduction Overview and Definitions Defining “volatile chemicals” Migration pathways Vapor Migration Issues Human health risks Universal nature of pathway Mitigation/Remediation Future property development/brownfields redevelopment  Vapor Chemistry 3 and 4 phase chemical partitioning Partitioning as predicted by: Henry’s law, vapor pressure, and Raoult’s law Vapor Physics Diffusion Fick’s law Advection Hydrogeology Soils Vapor permeability Heterogeneities Porosity (total, air-filled/water-filled) Perched water Preferential vapor migration Biodegradation Chlorinated VOCs Petroleum hydrocarbons  Building Design Issues Foundation types Space partitioning HVAC systems Regulatory Framework: ITRC guidance DTSC guidance & CHHSLs RWQCB ESLs Vapor Intrusion Investigations Sampling techniques for groundwater, soil, subslab, and indoor air Depth discrete Temporary vs. permanent monitoring points Analytical methods Spatial temporal variability Limitations Correlation to indoor levels

Data Analysis and Interpretation 90/95% UCLs Using means Partitioned buildings Separation of ventilation systems  Johnson and Ettinger Model Types Data needs Parameter sensitivities Accuracy Value Problems and limitations Guidance Case Studies Vapor Mitigation Systems and Engineered Controls Modified HVAC systems Air treatment Sub-slab depressurization (types, performance/reliability) Vapor barriers (types, specifications) Combination systems Vapor Remediation Source-zone treatment SVE systems Dual-phase Demonstrating compliance Off-gas treatment Institutional Controls Government controls Propietary controls Enforcement tools with IC components Informational devices Monitoring of ICs  New Developments in Vapor Intrusion Future of Johnson and Ettinger model EPA databases Correlation levels Empirical vs. theoretical results HVOCs vs. petroleum EPA guidance and use of generic attenuation factors Other vapor guidance

 

About the Instructor

Elie H. Haddad

Mr. Haddad is a vice president for Haley and Aldrich where he is involved in vapor intrusion investigations, remediation and modeling, risk assessments, planning and strategy, development and implementation of RI/FS programs, engineering designs, hydrogeological activities, computer modeling, and operation and maintenance programs. He led an unprecedented, and perhaps largest, indoor air investigation at a Superfund site. His work established a benchmark for other EPA sites. Mr. Haddad has used his skills to allocate remedial costs among potentially responsible parties at several sites, and to allow redevelopment of several contaminated properties into commercial uses. He supervised the development of remedial design for several Superfund sites, developed and used soil, groundwater, and air dispersion model, and is an expert in hydrogeological applications. Mr. Haddad is also a faculty member of the University of California at Berkeley Extension Program where he has taught the course "Fate and Transport of Contaminants in the Environment". In addition, Mr. Haddad serves on the seminar committee of the Groundwater Resources Association where he has chaired several seminars on various topics including vapor intrusion.

What to Bring

Please bring a pen or pencil, and notepad if you would like to take notes (you may also choose to take notes in your book). 

Billing Information

In order to guarantee a space in a course, the tuition must be paid in full TWO WEEKS before the first day of the course by either check or credit card. State and government agencies paying with a purchase order are allowed payment under the two-week time frame if a copy of the purchase order is received by NWETC.

If You Need to Cancel

Cancellations*

• With 31 or more days notice, we will offer a 100% refund or credit towards a future course. The credit is good for one year and may be applied to any course.
• With 30-8 days notice, we will offer a course credit towards a future course. The credit is good for one year and may be applied to any course.
• With fewer than 8 days notice, there is no course credit available

*Please note that attendee replacement is welcome at any time

Disability Accommodations

Disability Accommodations:

To request disability accommodations, please contact us at info@nwetc.org or 425-270-3274 at least 30 days prior to the event.