Alaska SWPPP inspection requirements
- Rain trigger
- Storm of more than 0.5″ in 24 hours that results in a discharge
- Post-rain deadline
- Within 24 hours
- Routine inspections
- Every 7 or 14 days
- Permit
- AKR100000 Construction General Permit (2026)
- Agency
- Alaska Department of Environmental Conservation (ADEC)
How Alaska handles construction stormwater
Construction sites in Alaska disturbing one acre or more need coverage under the AKR100000 Construction General Permit (2026), administered by Alaska Department of Environmental Conservation. The 2026 CGP is effective February 1, 2026 – January 31, 2031. Inspect every 7 days, or every 14 days plus within 24 hours of the end of a storm (more than 0.5″ in 24 hours) that results in a discharge. Areas with 40″ or more mean annual precipitation must use the 7-day schedule.
Inspector qualifications
A qualified person familiar with the site's SWPPP and control measures; Alaska has no state certification program.
Official sources
Common questions
What triggers a SWPPP inspection in Alaska?
Under the AKR100000 Construction General Permit (2026), storm of more than 0.5″ in 24 hours that results in a discharge triggers a post-storm inspection, within 24 hours (non-work days typically extend to the next work day; check your permit). Routine inspections: every 7 or 14 days.
Who can perform SWPPP inspections in Alaska?
A qualified person familiar with the site's SWPPP and control measures; Alaska has no state certification program.
Who administers the construction stormwater program in Alaska?
Alaska Department of Environmental Conservation (ADEC) administers the NPDES construction stormwater program in Alaska under the AKR100000 Construction General Permit (2026).
What are the penalties for SWPPP violations in Alaska?
Federal Clean Water Act civil penalties can reach $68,445 per day per violation, and ADEC 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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