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DTSTART;TZID=America/New_York:20260211T123000
DTEND;TZID=America/New_York:20260211T133000
DTSTAMP:20260404T001431
CREATED:20260203T215424Z
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SUMMARY:WEBINAR: PFAS In Stormwater Control Measures: Removal\, Distribution\, and Long-Term Fate
DESCRIPTION:Overview\nJoin us for our next technical webinar discussing “PFAS in Stormwater Control Measures” on February 11th at 12:30 EST. \nBackground/Objectives\nPer-and polyfluoroalkyl substances (PFAS) in stormwater pose emerging risks to surface waters and sediments\, particularly at aqueous film-forming foam (AFFF) impacted sites. Stormwater control measures (SCMs) are widely used to manage stormwater volumes and pollutant loads\, yet their PFAS performance is not well understood. This work evaluates PFAS concentrations\, distribution\, and long‑term behavior across multiple SCMs to clarify their treatment role and inform improved stormwater management. \nApproach/Activities\nThis study monitored 21 storm events at multiple SCMs (including biofilters\, media filters\, and a retention pond) to evaluate PFAS in inlet and outlet samples\, quantify dissolved and particulate phases\, and estimate PFAS removal efficiency. In an AFFF‑impacted pond\, monthly monitoring and a hydrologic model simulated pond volume and PFAS concentration dynamics over one year to identify key controlling processes. \nResults/Lessons Learned\nSCMs showed limited PFAS removal\, particularly in the dissolved phase\, which dominated concentrations. Chain length influenced PFAS association with solids\, but particulate removal was inconsistent\, resulting in low overall reduction. In the AFFF‑impacted pond\, PFAS accumulated over time\, with precursor transformation and evaporation driving concentration increases. These results illustrate how long‑residence‑time SCMs can act as long‑term PFAS sinks and even secondary sources. \nThis webinar has been approved for 1 professional development hour (PDH) credit for New York Professional Geologists and New York/New Jersey Professional Engineers. For other states\, please refer to your licensing board guidance for eligibility. \nAbout the Presenter\nCÉSAR GÓMEZ-AVILA\, PHD\nCésar is an environmental engineer with a PhD in Chemical Engineering\, specializing in stormwater management\, sediment recontamination\, and contaminant fate and transport. He has extensive experience with PFAS\, hydrophobic organic compounds (HOCs)\, microplastics\, and trace metals in\nenvironmental systems. \nTo Join The Meeting\nMicrosoft Teams Meeting\nJoin on your computer\, mobile app or room device: Click here to join the meeting.\nPhone Conference ID: 234 254 983 072 44\nPasscode: q4fB2pY9\nPlease visit the Parsons YouTube channel where video recordings of our previous\ntechnical webinars are available for viewing.
URL:https://www.parsons.com/event/webinar-pfas-in-stormwater-control-measures-removal-distribution-and-long-term-fate/
CATEGORIES:Environmental,PFAS,Water and Wastewater
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DTSTART;TZID=America/New_York:20260311T123000
DTEND;TZID=America/New_York:20260311T133000
DTSTAMP:20260404T001431
CREATED:20260302T221109Z
LAST-MODIFIED:20260302T233703Z
UID:10000821-1773232200-1773235800@www.parsons.com
SUMMARY:Webinar | Residual NAPL And PAH Remediation
DESCRIPTION:Join us on March 11\, 2026 for a technical webinar regarding Residual NAPL And PAH Remediation: The Critical Role of Pre-Design Investigations\, Treatability Testing\, and Pilot Testing \nBackground/Objectives\nPre-design investigations (PDIs)\, bench-scale treatability testing\, and pilot testing are critical for reducing uncertainty prior to remedial design. At a former creosoting facility Superfund site\, in situ chemical oxidation (ISCO) was identified as the primary selected remedy. The objective of the presented work was to refine the conceptual site model (CSM) and evaluate cost-effective\, feasible solutions through pre-design investigation and treatability testing to inform future pilot testing and full-scale design. \nApproach/Activities\nThe 2025 PDI integrated TarGOST® laser-induced fluorescence\, hydraulic profiling\, soil borings\, and groundwater sampling to characterize non-aqueous phase liquid\, soil\, and groundwater impacts at the site. Bench-scale treatability testing was used to evaluate persulfate-based ISCO within two distinct lithologies\, silty clays and weathered limestone\, to assess oxidant demand\, treatment effectiveness\, and zone-specific delivery feasibility. \nResults/Lessons Learned\nThe PDI results refined the CSM\, identifying more significant impacts in a weathered carbonate bedrock than previously understood. Treatability testing of ISCO demonstrated substantial reductions in polycyclic aromatic hydrocarbons (PAHs) in mixed silty clays\, whereas limited PAH destruction and a high natural persulfate oxidant demand were measured in weathered limestone. A second testing phase is evaluating enhanced anaerobic bioremediation for the limestone. The second phase was informed by a successful application of sulfate at a different Superfund site treating PAHs. These findings highlight that PDI and bench-scale testing can prevent high-cost errors\, leading to data-driven\nremediation designs. \nPresenters\nClaire Harris\, PG\, Claire is a Senior Hydrogeologist with more than seven years of experience supporting site characterization and risk-based remediation. \nGlenn Ulrich\, PhD\, Glenn is a technical director specializing in contaminant fate and transport\, the sustainable remediation of contaminants and methane\, and technology development. \nTo Join The Webinar\nJoin on your computer\, mobile app or room device: Click here to join the meeting. \nPhone Conference ID: 279 843 247 079 51\nPasscode: st7N4sW7 \nPlease visit the Parsons YouTube channel where video recordings of our previous\ntechnical webinars are available for viewing.
URL:https://www.parsons.com/event/webinar-residual-napl-and-pah-remediation/
LOCATION:Online
CATEGORIES:Environmental
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DTSTART;TZID=America/New_York:20260408T123000
DTEND;TZID=America/New_York:20260408T133000
DTSTAMP:20260404T001431
CREATED:20260327T221819Z
LAST-MODIFIED:20260327T221819Z
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SUMMARY:Webinar | Complex Remedial Action For Impacted Soil And Sediment At A New York State Superfund Site
DESCRIPTION:Join us on April 8\, 2026 for a technical webinar regarding Complex Remedial Action For Impacted Soil And Sediment At A New York State Superfund Site \nBackground/Objectives\nUnder the New York State Department of Environmental Conservation State Superfund Program\, the C&D Power Systems site was investigated and remediated in accordance with the New York State Hazardous Management Program requirements and Toxic Substance Control Act (TSCA) regulations for polychlorinated biphenyls (PCB) containing materials. The objective was to implement a protective\, compliant remedy that reduced risk while limiting impacts to surrounding wetlands and tributary areas. \n\nApproach/Activities\nThe remedy integrated excavation\, stabilization\, and off-site disposal of PCB-\, lead-\, and cadmium-impacted lagoon soils; in-situ solidification of subsurface lagoon soils; excavation and stabilization of surface soils and tributary sediment; placement of treated soils and sediment within the lagoon; installation of a paved cover system; and restoration of upland and tributary work areas. \n\nResults/Lessons Learned\nThis remedial action addressed over one acre of wetlands\, 2500 cubic yards (CY) of impacted tributary sediment\, 14\,000 tons of TSCA-level PCB-impacted material\, and 4\,000 CY of additional PCB-\, lead-\, and/or cadmium-impacted material. Using both in-situ and ex-situ methods improved constructability and compliance. Detailed oversight\, proactive coordination\, and adaptability helped maintain progress across tightly regulated multi-media activities. \nPresenters\nMichael (Mike) Broschart Mike holds a Bachelor of Science in Environmental Engineering from Syracuse University and has worked for Parsons for more than 21 years. He has extensive practical engineering experience in large-scale civil and\nenvironmental engineering design and construction projects. \nJessica Scheler\, EIT Jessica holds a Bachelor of Engineering in Environmental Engineering from the University of Pittsburgh and has been working as an engineer at Parsons for four years. She has worked on a variety of environmental investigation and remediation projects \nMicrosoft Teams Meeting\nJoin on your computer\, mobile app or room device: Click here to join the meeting.\nPhone Conference ID: 246 026 916 142 17\nPasscode: KS67HE66 \nPlease visit the Parsons YouTube channel where video recordings of our previous\ntechnical webinars are available for viewing.
URL:https://www.parsons.com/event/webinar-complex-remedial-action-for-impacted-soil-and-sediment-at-a-new-york-state-superfund-site/
LOCATION:Online
CATEGORIES:Environmental
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BEGIN:VEVENT
DTSTART;VALUE=DATE:20260531
DTEND;VALUE=DATE:20260605
DTSTAMP:20260404T001431
CREATED:20260102T185938Z
LAST-MODIFIED:20260105T143736Z
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SUMMARY:Battelle Chlorinated Conference
DESCRIPTION:Overview\nJoin us for the Battelle Chlorinated Conference 2026\, May 31 – June 4 at the Fort Worth Convention Center in Fort Worth\, TX. This international conference is the premier forum for environmental professionals\, scientists\, and engineers focused on the characterization\, remediation\, and management of sites contaminated with chlorinated and recalcitrant compounds. Attendees gain insights into the latest research\, emerging technologies\, and collaborative strategies that drive safer\, more effective environmental cleanup practices. \nConference & Exhibit Info\nThe Chlorinated Conference features a comprehensive agenda of expert presentations\, technical sessions\, case studies\, and hands-on discussions covering topics such as site characterization\, treatment technologies\, regulatory trends\, and long-term stewardship. Networking opportunities and educational short courses complement the technical program\, while the exhibit hall provides a dynamic space where organizations showcase advanced remediation technologies\, analytical tools\, and services that support environmental solutions for complex sites. \nExhibit\nStop by and visit a Parsons representative in the Chlorinated Conference Exhibit Hall at the Fort Worth Convention Center at our booth! \nMeet With Us\nJoin us to explore how Parsons is driving mission success through innovation and technology. \nPlease enable JavaScript in your browser to complete this form.First Name *Last Name *Email *Job Title *Company/Agency *Country *State *Phone NumberHow can we assist you? *I would like to learn more about Parsons products and offerings.I am interested in teaming with Parsons.I would like to present my company capabilities.Other (Please specify below).Anything Additional To Add?SubscribeYes\, subscribe me to our Innovation NewsletterMessageSubmit  \nLearn More\n\n\n\n\n\n\n\n\n\nWe proudly support science-driven\, sustainable environmental solutions that help address complex remediation challenges and protect public and ecological health. Through collaboration with government\, industry\, and technical partners\, we deliver deep expertise and innovative technologies that strengthen environmental programs\, enhance cleanup outcomes\, and advance long-term site stewardship. Learn more.
URL:https://www.parsons.com/event/battelle-chlorinated-conference/
LOCATION:Fort Worth Convention Center\, 1201 Houston St.\, Fort Worth\, TX\, 76102\, United States
CATEGORIES:Environmental,Federal Infrastructure Solutions,Water and Wastewater
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