August 29, 2024
Brendan Gibbons
New research revealing high levels of mercury in Texas bay raises alarms about dredging for oil tankers
Lavaca Bay is contaminated by decades of mercury pollution by Alcoa, which owns a former aluminum refinery on the bay’s northeastern side. In response, EPA mandated cleanup work in the bay under the agency’s Superfund program in the 2000s, but even after the cleanup efforts, the heavy metal remains in the sediment. Local fishermen and environmental advocates are worried that a dredging project planned by the U.S. Army Corps of Engineers and local port authority will stir up mercury and allow it to be released into the bay, threatening wildlife and humans who eat fish and shellfish from the bay. The dredging project would allow larger and more heavily laden oil tankers to access the Seahawk oil terminal, whose owner is planning a major expansion.