Compare Regulations
Compare state-level permit requirements side-by-side (up to 4 states)
ME(3 more)
Rows with an amber indicator differ across selected states.
| Field | ME Maine |
|---|---|
| NPDES Program | State-Delegated |
| Permitting Agency | Maine Department of Environmental Protection (DEP) |
| Permit Name | Maine Multi-Sector General Permit for Stormwater Discharges — Construction Activity (Permit No. MER10I000) |
| Construction Threshold | ≥ 1 acre of land disturbance (or < 1 acre if part of a larger common plan of development or sale) |
| NOI Lead Time | NOI must be submitted and acknowledged before land disturbance begins; no fixed statutory lead time specified in permit, but DEP recommends submitting at least 14 days before construction |
| Application Method | Paper NOI submitted to Maine DEP; online submission available through the Maine DEP e-permitting portal (EDEP) for some applications |
| Permit Fee | $200 NOI filing fee for sites disturbing 1–4.99 acres; $500 for sites disturbing ≥ 5 acres; fees payable to Treasurer, State of Maine |
| SWPPP Required | Yes |
| PE Certification Required | No |
| SWPPP Template Available | Yes |
| Inspection Frequency | Every 7 days and within 24 hours after any storm event producing ≥ 0.5 inches of rainfall in a 24-hour period; inspection frequency may be reduced to every 14 days for stabilized areas |
| Inspector Qualification | Inspections must be conducted by a person knowledgeable in the principles and practice of erosion and sediment control; Maine DEP strongly recommends Certified Erosion and Sediment Control Lead (CESCL) — a nationally recognized credential — but it is not mandated by the permit |
| Post-Construction Required | Yes |
| Turbidity Standard | No numeric NTU limit specified in the construction general permit; narrative standard requires discharges not to cause or contribute to violations of Maine's water quality standards (Class A, B, or C waters) |