Several nationally-notable environmental organization have provided comment to the U.S. Army Corps of Engineers, the St. Johns River Water Management District, Volusia County, and others that they are in violation of numerous provisions of federal law. The letter was sent in February 2016, and still they have not answered.
You can read the legal arguments in the link below, along with the supporting Exhibits. A couple other reports showing the potential harm from the I-95 Interchange are below.
Environmental Legal Violations Demand Letter Letter Exhibits
Traffic Analysis Showing There is “No Need” for an Unnecessary and Costly Pioneer Interchange