New Jersey
The stormwater permit for construction in New Jersey
New Jersey runs its own NPDES programme, so a state issued construction general permit governs. Below is what our engine can say about it, and where we have not read that permit, what it will not say.
Governing permit
NJPDES Master General Permit for Construction Activity Stormwater (5G3), Permit Number NJ0088323
- Issued by
- New Jersey Department of Environmental Protection (NJDEP), Bureau of NJPDES Stormwater Permitting and Water Quality Management
- Permit number
- NJ0088323
- Version determined against
- as published by the state agency
- Effective
- 2022-03-01
- Expires
- 2027-02-28
Who may prepare the plan
A credentialed preparer is requiredNew Jersey requires a credentialed preparer. Treat the generated document as a complete draft for that person to review, adopt and sign. It is not by itself a compliant filed plan.
Qualifying routes
- NJ-licensed Professional Engineer (seal required for engineering-related items of the soil erosion & sediment control plan)
- NJ-licensed Architect (seal required for engineering-related items of the soil erosion & sediment control plan)
- Plan certification by the local Soil Conservation District (or State Soil Conservation Committee, or municipal soil erosion ordinance approval under N.J.S.A. 4:24-48) is required regardless of who prepares the plan
Confirmed verbatim on the official SSCC251 form footnote, present in both the January 2014 and May 2022 editions of the Standards document, and consistent with this dataset's prior 'conditional' finding at N.J.A.C. 2:90-1.4(c)4. No acreage threshold conditions this seal requirement; it applies to the 'engineering related items' of any plan submitted for Soil Conservation District certification. Independent of the PE/Architect seal, the complete plan must be certified/approved by the local Soil Conservation District before land disturbance may commence, and authorization terminates if that district certification is rejected, expires, or is not renewed. No separate personal inspector-style credential (e.g. CESCL/CPESC) is imposed by the permit itself.
Does a site in New Jersey need coverage
Worked for a one acre site as a reference point. Change the acreage in the tool below and the answer, and its reasoning, change with it.
Coverage
Permit coverage required
The project disturbs 1 acres, at or above the 1 acre threshold, so it needs permit coverage.
Determined against dataset version 2026-07-19.
Read these before you act on the answer
- Requirements below are what we have read and cited directly from NJPDES Master General Permit for Construction Activity Stormwater (5G3), Permit Number NJ0088323, not the federal CGP. A category we have not yet transcribed from this permit is omitted here rather than assumed to match EPA's rule.
- NJ's 5G3 permit is structurally very different: it is a short narrative permit that leans on two external instruments -- the Soil Erosion and Sediment Control Act and the 'Standards for Soil Erosion and Sediment Control in New Jersey' -- for most site-specific numeric BMP design/timing rules, rather than stating them itself. The permit text does not specify a 'qualified person' credential for the weekly inspection, so inspection.qualifiedPerson is omitted. It has no federal-style BMP-deficiency correction-deadline framework -- the only numeric deadlines found are general NJPDES noncompliance/spill-reporting deadlines incorporated by reference, not BMP-corrective-action deadlines per se. No buffer/setback distance requirement appears anywhere in the 5G3 permit text. No numeric effluent benchmarks exist -- the permit is entirely narrative/BMP-based. The general disturbed-area stabilization timing is corroborated only via a New Jersey county Soil Conservation District's published construction-plan notes reflecting the state Standards, not the primary Standards document itself, which was not independently located.
- New Jersey requires a credentialed preparer. Treat the generated document as a complete draft for that person to review, adopt and sign. It is not by itself a compliant filed plan.
- Basinwise does not perform the physical site inspections the permit requires. Those must be carried out on site by a qualified person.
How this answer was reached, step by step
- 1
Coverage threshold
The project disturbs 1 acres, at or above the 1 acre threshold, so it needs permit coverage.
- 2
Permitting authority
New Jersey. The state runs its own programme under NJ0088323.
- 3
Preparer credential
New Jersey requires a credentialed preparer. Treat the generated document as a complete draft for that person to review, adopt and sign. It is not by itself a compliant filed plan.
Verified5G3 CGP (NJPDES Permit No. NJ0088323) Part I.E.1.b-c, incorporating by reference the 'Standards for Soil Erosion and Sediment Control in New Jersey,' Appendix A2 / SSCC251 application form ('Engineering related items of the Soil Erosion and Sediment Control Plan MUST be prepared by or under the direction of and be sealed by a Professional Engineer or Architect licensed in the State of New Jersey, in accordance with NJAC 13:27-6.1 et. seq.'); underlying statute N.J.S.A. 4:24-43 (Soil Erosion and Sediment Control Act, Ch. 251, P.L. 1975)Source
What to do next
- 1. Confirm the governing permit. Read NJPDES Master General Permit for Construction Activity Stormwater (5G3), Permit Number NJ0088323 directly. It is linked above, and it is the document an inspector will hold you to. New Jersey Department of Environmental Protection (NJDEP), Bureau of NJPDES Stormwater Permitting and Water Quality Management
- 2. Settle the preparer question before you draft. Getting this wrong costs a redraft at best. The detail is on the credential page for this state. Preparer credential in New Jersey
- 3. Screen the site. Run the real acreage and receiving water facts through the tool below. You get the inspection frequency, the stabilisation deadlines and the filing path with the permit section behind each.
- 4. Read the requirements in full. SWPPP requirements in New Jersey
Screen a New Jersey site now
Runs in your browser. Nothing about the site is transmitted.
What people ask about the New Jersey construction stormwater permit
Do I need a stormwater permit for a construction site in New Jersey?
Permit coverage is triggered at one acre of land disturbance, and below one acre if the project is part of a larger common plan of development or sale that will ultimately disturb an acre or more. The project disturbs 1 acres, at or above the 1 acre threshold, so it needs permit coverage.
Who issues the construction stormwater permit in New Jersey?
New Jersey Department of Environmental Protection (NJDEP), Bureau of NJPDES Stormwater Permitting and Water Quality Management issues NJPDES Master General Permit for Construction Activity Stormwater (5G3), Permit Number NJ0088323.
Does New Jersey require a qualified preparer for the plan?
New Jersey requires a credentialed preparer. Treat the generated document as a complete draft for that person to review, adopt and sign. It is not by itself a compliant filed plan.
Keep the record New Jersey will ask you for
The screening is free. Holding the written plan and the retained inspection log is what the permit actually demands.