Septic systems in New Hampshire
Permits, inspections, and records for septic systems.
New Hampshire septic system permits
In New Hampshire the state Department of Environmental Services approves septic system designs and permits. Start here for new systems, replacements, site assessments and approved designers.
About septic systems
Find the state or local program responsible for septic permits, inspections, and system records. The responsible agency and application process depend on the state and property location.