NH Department of Environmental Services

NHDES – Septic Systems

Ensuring proper design and installation to ensure adequate protection of public health and the environment.

Contact

Location:
29 Hazen Drive
P.O. Box 95
Concord, NH  03302-0095

Phone: 603-271-3501

Important Links

NHDES Septic Systems

Septic Designer or Installer Permitting

Subsurface OneStop

NHDES Septic Systems Fact Sheets

Subsurface Bureau Rules: Env-Wq 1000