New Jersey SWPPP inspection requirements
- Rain trigger
- 0.5″ storm event
- Post-rain deadline
- Within 24 hours
- Routine inspections
- Every 7 or 14 days
- Permit
- 5G3 Construction Activity Stormwater General Permit
- Agency
- New Jersey Department of Environmental Protection (NJDEP)
Verify against your permit. These values reflect the most common reading of New Jersey's program; permits change and projects vary. The official permit text from NJDEP controls.
How New Jersey handles construction stormwater
Construction sites in New Jersey disturbing one acre or more need coverage under the 5G3 Construction Activity Stormwater General Permit, administered by New Jersey Department of Environmental Protection.
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 New Jersey?
Under the 5G3 Construction Activity Stormwater General Permit, a storm event of 0.5 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 New Jersey?
A qualified person designated by the operator. Check the current state permit for certification requirements.
Who administers the construction stormwater program in New Jersey?
New Jersey Department of Environmental Protection (NJDEP) administers the NPDES construction stormwater program in New Jersey under the 5G3 Construction Activity Stormwater General Permit.
What are the penalties for SWPPP violations in New Jersey?
Federal Clean Water Act civil penalties can reach $68,445 per day per violation, and NJDEP 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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