Oklahoma SWPPP inspection requirements
- Rain trigger
- 0.5″ storm event
- Post-rain deadline
- Within 24 hours
- Routine inspections
- Every 7 or 14 days
- Permit
- OKR10 Construction General Permit
- Agency
- Oklahoma Department of Environmental Quality (OK DEQ)
Verify against your permit. These values reflect the most common reading of Oklahoma's program; permits change and projects vary. The official permit text from OK DEQ controls.
How Oklahoma handles construction stormwater
Construction sites in Oklahoma disturbing one acre or more need coverage under the OKR10 Construction General Permit, administered by Oklahoma Department of Environmental Quality.
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 Oklahoma?
Under the OKR10 Construction 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 Oklahoma?
A qualified person designated by the operator. Check the current state permit for certification requirements.
Who administers the construction stormwater program in Oklahoma?
Oklahoma Department of Environmental Quality (OK DEQ) administers the NPDES construction stormwater program in Oklahoma under the OKR10 Construction General Permit.
What are the penalties for SWPPP violations in Oklahoma?
Federal Clean Water Act civil penalties can reach $68,445 per day per violation, and OK 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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