N.H. Rev. Stat. Ann. § 485-C:14-a

Notwithstanding any provision of law to the contrary, before any person may withdraw 57,600 gallons or more of water in any 24-hour period from a well, such person shall provide written notice to the governing body of the municipality in which the well is located and to the governing bodies of each municipality and each supplier of water within the potential impact area of the proposed withdrawal as defined in RSA 485-C:21, V-e. This section shall apply only to wells established after the effective date of this section.