"Erosion control" means the use of practices such as those specified in Env-Wq 1506 or Env-Wq 1508 to contain soil particles and to prevent them from being displaced or washed down slopes by rainfall or run-off, including construction phasing, surface roughening, soil stockpile practices, temporary and permanent mulching, temporary vegetation, permanent vegetation, temporary erosion control blankets, diversion, and slope drain.
N.H. Admin. Code § Env-Wt 102.65