N.H. Code Admin. R. Env app B
RSA 485:1-a
I. "Community water system" means a public water system which serves at least 15 service connections used by year-round residents or regularly serves at least 25 year-round residents.
II. "Contaminant" means any physical, chemical, biological or radiological substance or matter in the water.
V. "Feasible" means capable of being done with the use of the best technology, treatment techniques, and other means which the department finds, after examination for efficacy under field as well as laboratory conditions, is available at reasonable cost.
VII. "Maximum contaminant level" means the maximum permissible level of a contaminant in water which is delivered to the free flowing outlet of the ultimate user of a public water system, except in the case of turbidity where the maximum permissible level is measured at the point of entry to the distribution system. Contaminants added to the water under circumstances controlled by the user, except those resulting from corrosion of piping and plumbing caused by water quality, are excluded from the definition.
VIII. "Maximum contaminant level goal" means that level of a contaminant in water at which no known or anticipated adverse effects on the health of consumers occur and which allows an adequate margin of safety, as determined by federal and state agencies.
X. "Non-community water system" means a public water system that is not a community water system.
XI. "Non-transient non-community water system" means a system which is not a community water system and which serves the same 25 people, or more, over 6 months per year.
XII. "Operator" means the individual who has direct management responsibility for the routine supervision and operation of a public water system or of a water treatment plant or collection, treatment, storage, or distribution facility or structure that is a part of a system.
XIII. "Person" means any individual, partnership, company, public or private corporation, political subdivision or agency of the state, department, agency or instrumentality of the United States, or any other legal entity.
XV. "Public water system" means a system for the provision to the public of piped water for human consumption, if such system has at least 15 service connections or regularly serves an average of at least 25 individuals daily at least 60 days out of the year. Such term includes (1) any collection, treatment, storage, and distribution facilities under control of the operator of such system and used primarily in connection with such system, and (2) any collection or pretreatment storage facilities not under such control which are used primarily in connection with such system. Any water system which meets all of the following conditions is not a public water system:
(a) Consists only of distribution and storage facilities (and does not have any collection and treatment facilities);
(b) Obtains all of its water from, but is not owned or operated by, a public water system; and
(c) Does not sell water to any person.
XVI. "Supplier of water" means any person who controls, owns or generally manages a public water system.
N.H. Code Admin. R. Env app B