N.H. Code Admin. R. Env-Wq 306.06
(b) The certification required by (a), above, shall:
(3) Be submitted to the department by:
b. Mailing or delivering the certification to:
NH Department of Environmental Services
Wastewater Engineering Bureau
29 Hazen Drive P.O. Box 95
Concord, NH 03302-0095
Source. #13287, eff 12-1-21