EPA to Regulate PFOA/PFOS as Hazardous Substances
On January 10, 2022, EPA submitted a proposed rule to the Office of Management and Budget (OMB) to designate perfluorooctane sulfonate...
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- Nov 2, 2021
- 1 min
EPA to Regulate PFOA/PFOS as Hazardous Waste
On October 26, 2021, EPA announced that they would begin a two-step rulemaking process to list perfluorooctanoic acid (PFOA),...
- Oct 5, 2021
- 1 min
EPA Returns to 2015 SSM SIP Policy
On September 30, 2021, EPA issued a start, shutdown, and malfunction (SSM) memo withdrawing its October 9, 2020, memo and returning to...
- Oct 1, 2021
- 1 min
Practical Use of Drones for Diverse Infrastructure Projects
In September 2021 the American Society for Civil Engineers (ASCE) sponsored a half-day professional development course on using drones at...
- Feb 6, 2021
- 1 min
New Presidential Administration: Big Air & Waste Changes?
In February 2021 Stephen B. Ellingson, Ph.D. collaborated with Richard G. Glaze, Jr., Barnes & Thornburg LLP to deliver a presentation to...
- Oct 14, 2020
- 1 min
Georgia Environmental Protection Division Guidance Documents
In October 2020, Stephen B. Ellingson, Ph.D. provided a status update and examples of how to effectively use the Georgia Environmental...
- Jul 30, 2020
- 1 min
Area Averaging Approaches
In July 2020, the Georgia Brownfield Association (GBA) sponsored a virtual workshop on the Georgia Environmental Protection Division’s...
- May 6, 2020
- 1 min
Recap of recent Vatten presentations
Practical Use of Drones for Diverse Infrastructure Projects In April 2020 the American Society for Civil Engineers (ASCE) sponsored a...
- Mar 3, 2020
- 4 min
Michigan Approves Drinking Water Standards forSeven Per- and Polyfluoroalkyl Substances (PFAS)
On February 27, 2020, the Environmental Rules Review Committee of the Michigan Department of Environment, Great Lakes, and Energy (EGLE)...
- Mar 3, 2020
- 1 min
Soil-to-Groundwater Leaching Pathway Workshop
Workshop on the Georgia Division of Environmental Protection’s (Ga EPD) new soil-to-groundwater leaching guidance
- Feb 25, 2020
- 1 min
Soil-to-Groundwater Leaching Approaches
In February 2020, the Georgia Brownfield Association (GBA) sponsored a workshop on leaching assessments. Stephen B. Ellingson, Ph.D....
- Feb 17, 2020
- 1 min
California Lowers Response Levels for PFOA and PFOS
On February 6, 2020, the California Water Resources Control Board (WRCB) announced it was lowering the response levels (RLs) for...
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