Pilot-scale tests confirm the effectiveness of treatments for per- and polyfluoroalkyl substances, speakers say. But questions about prioritization, cost performance and comparisons linger.
The $38 million privately funded project, which spans 755 acres and includes 84 distinct work elements, stands apart as the largest brownfield cleanup by area in the history of the Georgia Brownfields Program and was completed ahead of schedule.
In response to a request to unexempt seed treatments from pesticide regulations, EPA declines, but opens the door to labeling and other regulatory changes.
Plan consists of a combination of in situ chemical injections, soil mixing, engineering practices, institutional controls and long-term monitoring to address soil, groundwater and surface water contamination.
Investigating a region in southwest Pennsylvania with hydrocarbon extraction dating back to the early 1800s, small but statistically significant groundwater contamination hotspots were detected by researchers.