Arlington cannot proceed with building a boathouse without approval from the National Park Service, because the waterfront land along this side of the Potomac River actually belongs to NPS. By law, NPS is required to perform a study about how such a venture would impact the cultural and natural resources in the area.
Estimated to take from two to three years, an environmental impact study is the longer and more thorough of two main studies that can be performed. The other is an environmental assessment, which is done on less controversial matters and typically takes one to two years. Environmental assessments had previously been initiated for an Arlington boathouse, but due to various limiting factors including staffing and lack of resources, they were scrapped. This time, all involved parties are dedicated to seeing the EIS through.