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