"To undertake construction" means to perform any fabrication of any structure or any appurtenance to a structure, or any activity preliminary to fabricating such structure or appurtenance, such as earth moving, that involves a significant alteration of the characteristics of the terrain or that occurs in or on the borders of surface waters of the state.
N.H. Admin. Code § Env-Wq 1502.75
(See Revision Note #1 at chapter heading for Env-Wq 1500) #9343, eff 1-1-09