Emerging Contaminants

Course Summary

Recently, a generic class of chemical compounds referred to as “emerging contaminants” has drawn increased attention from regulators. One government agency has defined emerging contaminants as “any synthetic or naturally occurring chemical or any microorganism that is not commonly monitored in the environment but has the potential to enter the environment and cause known or suspected adverse ecological and(or) human health effects” (emphasis added).  

This presentation will discuss two emerging contaminants -- 1,4-dioxane, and the family of compounds known collectively as PFAS (per- and polyfluoroalkyl substances) – and investigation and remediation approaches available to address these complicated compounds which, if present, are not effectively treated using conventional technologies.

 

1 CLE Credit

Desrosiers, Richard-2019

Richard Desrosiers, P.G., LEP

Associate Principal

Mr. Desrosiers is a Licensed Environmental Professional in Connecticut and a licensed Professional Geologist in New Hampshire and Tennessee.  In 33 years of environmental practice, he has focused on understanding complex geologic, hydrogeologic and geochemistry associated with soil and groundwater contamination.  His experience includes the assessment and remediation of metals and volatile organic compounds, RCRA/CERCLA hazardous waste investigations / closures; developing in-situ innovative technologies to remediate groundwater contamination, developing high yielding groundwater supplies in both the surficial and deep bedrock aquifers, and completion of hydrogeologic evaluations and groundwater models. He has also provided depositions and bench and jury expert testimony regarding litigation issues.  Mr. Desrosiers is currently involved with two Interstate Technology & Regulatory Council (ITRC) teams, “Optimization of In-Situ Remediation and Injection Strategies” and “Per- and Polyfluoroalkyl Substances (PFAS)”, and was an active contributor to the recently published “Characterization and Remediation in Fractured Bedrock” document.

Richard.Desrosiers@gza.com
860-858-313