"Gallons per day (GPD)" means the standard measure of water or wastewater flow in a 24-hour period.
N.H. Admin. Code § Env-Wq 1202.19
#8235, eff 12-22-04 (See Revision Note at chapter heading for Env-Wq 1200) (formerly Env-Ws 1202.19); ss by #9798, eff 10-9-10