Fifth Circuit: Atchafalaya Basinkeeper, et al v. U.S. Army Corps


Agency's mitigation analysis was sufficient, as the project did not have a significant environmental impact.  Use of external mitigation credits was sufficiently explained within the agency's decisionmaking process.  Corps recitation of potential cumulative impacts sufficed to establish consideration of cumulative impact.

http://www.ca5.uscourts.gov/opinions/pub/18/18-30257-CV0.pdf