New Hampshire SWPPP Compliance
Quick Facts for New Hampshire
- Authority: US EPA Region 1 (Direct) (NH)
- Permit: EPA Construction General Permit (CGP)
- Inspection Schedule: Weekly OR 14-day + 0.25" rain
- Rain Trigger: 0.25 inches
Regulation Overview
Permitting Authority
Official Permit
Inspection Frequency
Rain Event Trigger
State vs. Federal (EPA)Same as EPA
EPA Direct
NH is a non-authorized state. EPA enforces directly.
Inspection Requirements for New Hampshire
Construction projects that disturb one or more acres—or smaller sites that are part of a larger common plan—commonly require stormwater permit coverage in New Hampshire. Eligibility, exemptions, local approvals, and project-specific conditions vary, so confirm coverage under the EPA Construction General Permit (CGP) before construction begins.
Operational Insight
Use the permit-defined schedule as the baseline and document each completed inspection. Project size, receiving water, stabilization status, or local approvals may change the frequency shown here.
Specific State Nuance
Non-authorized state. EPA enforces directly using federal eNOI.
Common BMPs Checked in New Hampshire
- Silt Fences & Perimeters
- Construction Entrances
- Concrete Washout Areas
- Inlet Protection
- Stockpile Management
- Dust Control
Continue your field review
Check common controls in the BMP field guide, then compare them with your approved SWPPP.
Regulatory Filing
Agency Contact
Official Resources
Why Go Digital?
Handwritten logs are hard to read and easy to lose. Digital reports provide a timestamped, geo-tagged audit trail that protects your business.