"Pretreatment" means the application of physical, chemical, or biological processes, or any combination thereof, other than dilution, to reduce the amount of pollutants in or alter the nature of the pollutant property in a waste prior to discharging such waste into a publicly owned treatment works.
N.H. Admin. Code § Env-Wq 1202.49
#8235, eff 12-22-04 (See Revision Note at chapter heading for Env-Wq 1200) (formerly Env-Ws 1202.49); ss by #9798-A, eff 10-9-10 (Env-W1 1202.48)