EWRI September Virtual Meeting

Thursday, September 16, 2021 - 12:00 PM - Thursday, September 16, 2021 - 01:00 PM

Topic: Urban Stormwater Chemistry and its Impacts on Sediments.

Speaker: Dimitrios Athanasiou, Exponent

Dimitrios Athanasiou is a senior associate at the Environmental & Earth Sciences Practice at Exponent in Bellevue, WA. He studied Physics before delving into Environmental Engineering and focusing on organic pollutants, urban stormwater and contaminated sediments. In the two years he has worked at Exponent, he has provided project guidance on multiple issues pertaining to stormwater runoff and associated contamination and damages. His experience includes identifying and evaluating exceedances of regulatory limits for legacy contaminants (PAHs, PCBs, pesticides, metals) and hydrology analyses of storm events and associated damage. Dimitrios has also provided technical consulting on contaminated sediment projects and oversight on fish and sediment sampling.

Description: Urban runoff is a major source of particle-associated pollutants whose endpoint is often the sediment of a receiving water body. In 2014-2018, the Department of Defense (DoD) conducted a study aimed to characterize storm runoff solids from a mixed-use urban watershed and determine the physical, chemical and biological effects they incur on receiving sediment. This presentation will discuss the lessons learned from that study and will hopefully assist the audience develop more effective assessment and remediation strategies for contaminated systems.

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