"Small system" means an ISDS that is designed for a flow of not more than 2,500 gallons of sewage per day.
N.H. Admin. Code § Env-Wq 1002.66
(See Revision Note at chapter heading for Env-Wq 1000) #9086, eff 2-9-08; renumbered by #9904-A (from Env-Wq 1002.65)