Over the past 26 years, Dr. Jersak has had an extensive and diverse career in the earth and environmental sciences, both in academia and consulting. His professional experience generally includes: characterizing site and material conditions in “clean” and contaminated environments, including characterizing (bio)geochemical processes and effects in such environments; developing/designing remedial (cleanup) technologies and approaches; and remedy implementation. Dr. Jersak’s work in various characterization- and remedy-related areas covers a broad spectrum of environmental media and settings, including: geologic strata; soils; sediments; groundwater; surface water; atmospheric inputs (“acid rain”); wetlands and industrial properties. He has been involved in project activities and research as diverse as conducting Phase I Environmental Site Assessments to investigating ways to enhance evaporation from brine-filled surface-water impoundments.
Over the past 14 years, Dr. Jersak’s work has focused exclusively on contaminated sediments in freshwater and marine environments. Having first served as R&D Director for AquaBlok, Ltd. in the USA (8 years) then as Technical Manager for Biologge AS in Norway (6 years), his main focus during this time has been on remediating contaminated sediments using in-situ capping (and treatment) approaches. He has been closely involved in developing and implementing engineered sediment capping (and treatment) products, namely AquaBlok® and related product lines, currently known as BioBlok® in Scandinavia.
Dr. Jersak entered the field of contaminated sediments from a commercial – not academic – perspective. Over the last 14 years, he has gained a wide perspective and understanding, knowledge and applied skills related to:
- How the use of engineered capping and treatment products fits into the broader context of sediment remediation using in-situ approaches – in general, including the use of conventional (non-reactive) materials;
- How in-situ capping and treatment approaches fit into the overall framework of and options for managing/remediating contaminated sediments and related risks (capping vs treatment vs removal vs Monitored Natural Recovery); and
- How the art of managing/remediating contaminated sediments and risks fits into the overall lifecycle of a “typical” contaminated sediment site (characterization risk assessment remedy evaluation and selection remedy implementation post-remedy monitoring).
Consequently, he has a firm grasp and working knowledge of other non-capping and non-remediation related aspects of the contaminated sediment field.
- Bachelor of Science (BS): Geology, University of Missouri-Columbia, USA 1983
- Master of Science (MS): Soil Science, University of California-Berkeley, USA 1988
- Doctor of Philosophy (PhD): Soil Science, University of California-Berkeley, USA 1991
Past professional positions:
- Technical Manager, Biologge AS, Norway 2005 – 2011
- Senior Scientist, Hull & Associates, Inc., Ohio, USA 1996 – 2005
- Director of Research & Development, AquaBlok, Ltd., Ohio, USA 1997 – 2005
- Environmental/Soil Scientist, Boyajian & Ross, Inc., California, USA 1991 – 1997
Past academic position:
- Adjunct professor, “Wetlands ecology”, Bowling Green State University, Ohio, USA Spring 1997
Peer reviewer, scientific publications:
- Geological Society of America Bulletin (past)
- Journal of Soils and Sediments (present)
PUBLICATIONS (including conference participation)
Dr. Jersak has authored/co-authored numerous publications, including conference presentations, most recently (since 1997) on sediment capping, treatment, characterization and assessment, and previously (1985-1997) on various soils-related issues.
For the complete list of publications, click here.