RSA 21:47
"Local Legislative Body" mean a town meeting, school district meeting, village district meeting, city or town council, mayor and council, mayor and board of aldermen, or, when used to refer to unincorporated towns or unorganized places, or both, the county convention.
RSA 485-A:2
VI. "Industrial Waste" means any liquid, gaseous or solid waste substance resulting from any process of industry, manufacturing trade or business or from development of any natural resources.
IX. "Person" means any municipality, governmental subdivision, public or private corporation, individual, partnership, or other entity.
X. "Sewage" means the water-carried waste products from buildings, public or private, together with such groundwater infiltration and surface water as may be present.
XVI-a. "Wastewater treatment plant (WWTP)" means the treatment facility or group of treatment devices which treats domestic or combined domestic and industrial wastewater through alteration, alone or in combination, of the physical, chemical, or bacteriological quality of the wastewater and which dewaters and handles sludge removed from the wastewater.
N.H. Admin. Code Env, Env-Wq, ch. Env-Wq 700, app C