The department shall adopt rules pursuant to N.H. Rev. Stat. Chapter 541-A specifying criteria and procedures to ensure a groundwater withdrawal less than 57,600 gallons over any 24-hour period from a new source of water for a community water system as defined by N.H. Rev. Stat. § 485:1-a and subject to N.H. Rev. Stat. § 485:8 does not cause an unmitigated impact to an existing private water supply well in accordance with N.H. Rev. Stat. § 485-C:21, V-c(a) or N.H. Rev. Stat. § 485-C:21, V-c(c).