Compare Regulations
Compare state-level permit requirements side-by-side (up to 4 states)
MS(3 more)
Rows with an amber indicator differ across selected states.
| Field | MS Mississippi |
|---|---|
| NPDES Program | State-Delegated |
| Permitting Agency | Mississippi Department of Environmental Quality (MDEQ) |
| Permit Name | NPDES General Permit for Stormwater Discharges from Construction Sites (MSR100000) |
| 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 and MDEQ authorization received before construction begins; no fixed statutory lead time, but applicants should allow 7–14 days for processing |
| Application Method | Paper NOI submission to MDEQ Office of Pollution Control; MDEQ has pursued online submittal enhancements — verify current portal status at mdeq.ms.gov |
| Permit Fee | No permit fee for coverage under the Construction General Permit MSR100000 |
| SWPPP Required | Yes |
| PE Certification Required | No |
| SWPPP Template Available | Yes |
| Inspection Frequency | At least every 14 days and within 24 hours after any rainfall event of ≥ 0.5 inches during a 24-hour period |
| Inspector Qualification | No state-mandated certification; inspections must be conducted by a qualified personnel who is knowledgeable about the permit and SWPPP requirements. MDEQ recommends familiarity with BMP installation and maintenance. |
| Post-Construction Required | Yes |
| Turbidity Standard | No numeric NTU effluent limit in the Construction General Permit |