One of the most difficult sites that environmental professionals must deal with are sites which are contaminated with chlorinated solvents. Chlorinated solvents were compounds that worked extremely well in many industrial and commercial operations. Two of the prime uses of chlorinated solvents were Tetrachloroethene (PCE) used most commonly as a dry-cleaning solvent and Trichloroethene (TCE), used in a plethora of commercial operations ranging from industrial vapor degreasers to spray cleaner in local gasoline stations, to waterproofing shoe sprays.

The mass of compounds released to the environment in this state cannot be calculable given the multitude of uses and users. Chlorinated compounds can cause a multitude of problems: they can cause vapor intrusion issues; they can solubilize in water; they can form Dense Non-Aqueous Phase Liquids. After "remediation", they may rebound based on the soil physical chemistry encountered. Because of their common use, it is not uncommon to find "mixed plumes" which have more than one contributor and, possibly, more than one chlorinated compound. Some chlorinated solvents have natural degradation pathways, which degradation rates are also a function of the bulk chemistry of the soil. From a forensic point of view, there are some simple ways to identify one source from another. In some cases, identifying sources will require sophisticated chemical techniques such as isotopic analysis.

Remediation may also be complex and may involve several phases rather than the selection of a sole methodology. Successful remediation will depend on effective delineation of the source or sources, the physio-chemical composition of the soil or water and the biological effectiveness of degradation, if any.

This course is designed to familiarize attendees with the various problems caused by chlorinated solvents: the difficulties encountered in attempting to delineate contaminated soil and water; and the process by which one may select a method or methods to successfully remediate chlorinated solvent contaminated sites.

Topics to be Discussed:

  • History and Uses of Chlorinated Solvents
  • Commonly Encountered Chlorinated Solvents
  • Chemistry of Chlorinated Solvents: PCE, TCE, TCA
  • Quick Forensic Tools for Differentiation
  • Chlorinated Solvents Behavior in the Environment- Part 1
  • Conventional Remediation
  • Soil Vapor Extraction/Air sparging
  • Bioremediation
  • Chemical Oxidation
  • Zero valent iron
  • Thermal Remediation
  • Treatability Studies/Pilot Studies
  • Remedial Design Considerations
  • Co-contaminant issues (1,4-dioxane, BTEX, metals)

Who Should Attend:

While this course is designed primarily for LSRPs, the information regarding chlorinated solvents will inform those who are in any way involved with sites contaminated with these compounds. Individuals such as attorneys, corporate environmental personnel, etc. will be informed about the investigation and remediation of chlorinated solvent contaminated sites. A heavy emphasis will be placed on PCE, TCE and TCA, the most commonly encountered chlorinated solvents.


Stew Abrams
Mr. Abrams, Vice President & Director of Remediation Technology, Langan Engineering & Environmental Services has over 35 years of experience in site remediation, soil and groundwater remediation, water treatment, Brownfields redevelopment, and engineering design. He is an expert in remedial technology, with particular emphasis on bioremediation, chemical oxidation/reduction technologies, soil vapor extraction, and air sparging. He has recently become involved in the emerging fields of emerging contaminants and sustainable remediation. Before joining Langan, Mr. Abrams held positions of National Practice Leader for Remediation at a major national consulting and engineering company and as vice president of operations at an environmental R&D firm. Mr. Abrams holds a B.S. In Civil/Environmental Engineering, B.A. in Political Science and M.S. in Environmental Sciences from Rutgers University in New Brunswick, NJ and is a Professional Engineer in several states.

Dr. Jorge Berkowitz
Dr. Berkowitz is a LSRP and private consultant offering site remediation expert services in support of client's responsibilities during remediation or during litigation. He is an expert in the industry with over 40 years' experience, including the remediation and reuse of contaminated sites. Jorge is a Board Member/LSRP of the NJ Site Remediation Professional Licensing Board. He has previously been an academician, a state regulator and presently, an environmental consultant since 1989. He has lectured at many universities as well as presented before congress regarding the importance of remediation programs. He has been the recipient of several awards from environmental health groups for recognizing his contributions to educating environmental health professionals. Dr. Berkowitz holds a B.S., M.S., and Ph.D. from Rutgers University, all in Environmental Sciences with a specialty in environmental microbiology and environmental health.

Registration Fee Includes:

Buffet lunch, course material, continuing education certificate & free parking.

Continuing Education Credits

  • NJ LSRPs: 6.5 Technical CECs (NJSRPLB Course #2019-112)
  • NJ Professional Engineers: 6.5 Continuing Professional
  • Competency Credits; Attention Health Officers and Registered Environmental Health Specialists: Participants who complete this education program will be awarded 6.5 NJ Public Health Continuing Education Contact Hours (CEs); This course is eligible toward PDHs for Pennsylvania Geologists