Compare Regulations
Compare state-level permit requirements side-by-side (up to 4 states)
OH(3 more)
Rows with an amber indicator differ across selected states.
| Field | OH Ohio |
|---|---|
| NPDES Program | State-Delegated |
| Permitting Agency | Ohio Environmental Protection Agency (Ohio EPA) |
| Permit Name | NPDES General Permit for Stormwater Discharges Associated with Construction Activity (OHC000004) |
| Construction Threshold | ≥ 1 acre of land disturbance, or < 1 acre if part of a larger common plan of development or sale that will ultimately disturb ≥ 1 acre |
| NOI Lead Time | NOI must be submitted at least 7 days before construction activity begins; permit coverage is not effective until Ohio EPA processes the NOI |
| Application Method | Online via Ohio EPA eBusiness Center (eDMR/eNOI portal); paper NOI forms also accepted |
| Permit Fee | $350 base fee for projects disturbing < 5 acres; $750 for 5–9.99 acres; $1,500 for ≥ 10 acres; annual fees apply for multi-year projects |
| SWPPP Required | Yes |
| PE Certification Required | No |
| SWPPP Template Available | Yes |
| Inspection Frequency | Every 7 days and within 24 hours of a precipitation event that results in a discharge from the site. Inspections may be reduced to every 14 days and within 24 hours of a precipitation event if the site meets stabilization criteria for disturbed areas. |
| Inspector Qualification | Inspector must be a 'qualified inspector' who has completed Ohio EPA-approved training (e.g., Ohio's Water & Soil Resources Commission CPESC or equivalent). No formal state certification credential is mandated by the general permit, but training documentation must be maintained. Many operators use Certified Professional in Erosion and Sediment Control (CPESC) holders. |
| Post-Construction Required | Yes |
| Turbidity Standard | No numeric NTU effluent limit in the general permit; discharges must not cause or contribute to violations of Ohio water quality standards |