Arkansas SWPPP inspection requirements
- Rain trigger
- 0.25″ storm event
- Post-rain deadline
- Within 24 hours
- Routine inspections
- Every 7 or 14 days
- Permit
- ARR150000 Construction General Permit
- Agency
- Arkansas Division of Environmental Quality (DEQ)
How Arkansas handles construction stormwater
Construction sites in Arkansas disturbing one acre or more need coverage under the ARR150000 Construction General Permit, administered by Arkansas Division of Environmental Quality. Inspect every 7 days, or every 14 days plus within 24 hours of the end of a 0.25″ storm (on-site rain gauge required). The current permit expires October 31, 2026; the renewal — effective November 1, 2026 – October 31, 2031 — keeps the 0.25″ trigger.
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 Arkansas?
Under the ARR150000 Construction General Permit, a storm event of 0.25 inches or more 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 Arkansas?
A qualified person designated by the operator. Check the current state permit for certification requirements.
Who administers the construction stormwater program in Arkansas?
Arkansas Division of Environmental Quality (DEQ) administers the NPDES construction stormwater program in Arkansas under the ARR150000 Construction General Permit.
What are the penalties for SWPPP violations in Arkansas?
Federal Clean Water Act civil penalties can reach $68,445 per day per violation, and 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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