Healthy Gulf joined American Rivers, National Audubon Society and Sierra Club in a lawsuit against the Environmental Protection Agency, asking a federal judge to rule on whether EPA’s 2008 Clean Water Act veto of the Yazoo Backwater Pump project still applies to a 2020 Army Corps of Engineers re-do. The project’s pumping capacity and purpose remain the same as the earlier project which was vetoed during the George W. Bush Administration. The project’s impacts to wetlands and habitats remain significant in the 2020 re-do version, and the Conservation Groups maintain that the veto still prohibits the pumps. EPA has used a Clean Water Act veto on a development project 13 times since 1972. The agency has slightly modified some vetoes after-the-fact, but has never completely revoked one.