open canals in pipe. (2) Mitigation, reclamation, and restoration Mitigation, reclamation, and restoration of streams, wetlands, banks, slopes, and wasteways within, appurtenant to, or affected by the Flathead Indian irrigation project. (3) Acquisition of interests Acquisition, in accordance with subsection (e), of easements or other interests in real property necessary to carry out any activity under this section. (b) Environmental compliance Prior to the commencement of any construction activity under subsection (a), the Tribes shall perform appropriate Federal environmental compliance activities relating to the activity. (c) Treatment Any activities carried out pursuant to subsection (a) that result in improvements, additions, or modifications to the Flathead Indian irrigation project, including the acquisition of any real property interest, shall— (1) become a part of the Flathead Indian irrigation project