"Slug discharge" means any discharge of water or wastewater in which the concentration of any given pollutant or the quantity of flow exceeds, for any period of duration longer than 15 minutes, more than 5 times the average 24-hour concentration or flow during normal operation, or that adversely affects the POTW.
N.H. Admin. Code § Env-Wq 1202.66
#8235, eff 12-22-04 (See Revision Note at chapter heading for Env-Wq 1200) (formerly Env-Ws 1202.66); ss by #9798-A, eff 10-9-10 (from Env-Wq 1202.65)