N.H. Admin. Code Env, Env-Dw, ch. Env-Dw 700, APPENDIX B
To Env-Dw 714 (Doc. #9859, eff 2-8-11)
Definitions from 40 CFR §141.2 :
"Large water system, for the purpose of subpart I of this part only, means a water system that serves more than 50,000 persons."
"Medium-size water system, for the purpose of subpart I of this part only, means a water system that serves greater than 3,300 and less than or equal to 50,000 persons."
"Small water system, for the purpose of subpart I of this part only, means a water system that serves 3,300 persons or fewer."
40 CFR §141.91 Recordkeeping requirements:
"Any system subject to the requirements of this subpart shall retain on its premises original records of all sampling data and analyses, reports, surveys, letters, evaluations, schedules, State determinations, and any other information required by §§141.81 through 141.88. Each water system shall retain the records required by this section for no fewer than 12 years."
N.H. Admin. Code Env, Env-Dw, ch. Env-Dw 700, APPENDIX B