North Carolina SWPPP inspection requirements
- Rain trigger
- 1″ storm event
- Post-rain deadline
- Within 24 hours
- Routine inspections
- Every 7 or 14 days
- Permit
- NCG010000 Construction General Permit
- Agency
- North Carolina Department of Environmental Quality (NC DEQ)
Verify against your permit. These values reflect the most common reading of North Carolina's program; permits change and projects vary. The official permit text from NC DEQ controls.
How North Carolina handles construction stormwater
Construction sites in North Carolina disturbing one acre or more need coverage under the NCG010000 Construction General Permit, administered by North Carolina Department of Environmental Quality. North Carolina's NCG01 uses a 1.0″ rain trigger measured by an on-site rain gauge, with 7-day routine inspections and electronic self-inspection records.
Inspector qualifications
A qualified person designated by the operator. Check the current state permit for certification requirements.
Official sources
Common questions
What triggers a SWPPP inspection in North Carolina?
Under the NCG010000 Construction General Permit, a storm event of 1 inches or more triggers a post-storm inspection, generally due within 24 hours (non-work days typically extend to the next work day; check your permit). Routine inspections run every 7 or 14 days.
Who can perform SWPPP inspections in North Carolina?
A qualified person designated by the operator. Check the current state permit for certification requirements.
Who administers the construction stormwater program in North Carolina?
North Carolina Department of Environmental Quality (NC DEQ) administers the NPDES construction stormwater program in North Carolina under the NCG010000 Construction General Permit.
What are the penalties for SWPPP violations in North Carolina?
Federal Clean Water Act civil penalties can reach $68,445 per day per violation, and NC DEQ can issue administrative orders and state penalties on top. Missing rain-triggered inspections is among the most commonly cited violations in stormwater audits.
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