N.H. Code Admin. R. Env-Wq 1602.11
“Domestic septage” means either liquid or solid material removed from a septic tank or similar treatment works that receives only domestic sewage from household activities. Domestic septage does not include liquid or solid material removed from a septic tank or similar treatment works that receives either commercial, institutional wastewater not generated from a household activity, or industrial wastewater and does not include grease removed from a grease trap.
Source. (See Revision Note #1 and Revision Note #2 at chapter heading for Env-Wq 1600) #13944, eff 4-27-24