Compare Regulations
Compare state-level permit requirements side-by-side (up to 4 states)
LA(3 more)
Rows with an amber indicator differ across selected states.
| Field | LA Louisiana |
|---|---|
| NPDES Program | State-Delegated |
| Permitting Agency | Louisiana Department of Environmental Quality (LDEQ) |
| Permit Name | LPDES Construction Stormwater General Permit (Permit LAR100000) |
| Construction Threshold | ≥ 1 acre of land disturbance; < 1 acre if part of a larger common plan of development or sale that will disturb ≥ 1 acre in total |
| NOI Lead Time | Notice of Intent (NOI) must be submitted to LDEQ at least 2 days before commencement of construction activities; permit coverage is effective 2 days after a complete NOI is received; some sensitive areas may require a longer review period |
| Application Method | Online via LDEQ's Electronic Document Management System (EDMS) portal at https://edms.deq.louisiana.gov/; paper NOI also accepted and submitted to LDEQ's Water Permits Division in Baton Rouge |
| Permit Fee | $100 per NOI submission (flat administrative processing fee); no acreage-scaled fee for the construction general permit |
| SWPPP Required | Yes |
| PE Certification Required | No |
| SWPPP Template Available | Yes |
| Inspection Frequency | At least every 7 days and within 24 hours after a storm event resulting in a discharge from the site; inspection frequency may be reduced to every 14 days for portions of the site that have achieved temporary or final stabilization |
| Rain Inspection Trigger | Within 24 hours of any storm event resulting in a discharge from the site (discharge-based trigger) |
| Inspector Qualification | Inspections must be conducted by a qualified inspector who is knowledgeable in the principles and practice of stormwater pollution prevention; LDEQ does not require a specific state-issued inspector certification for construction stormwater, though Certified Inspector of Sediment and Erosion Control (CISEC) or CESSWI credentials are recognized industry standards |
| Inspector Certifications | No state-specific cert required; inspector must have 'sufficient training and experience'; CPESC, CESSWI, CISEC accepted |
| Post-Construction Required | Yes |
| Turbidity Standard | No numeric NTU effluent limit in General Permit LAR100000; narrative water quality standards apply |