SWPPP Requirements in New Jersey

Who needs an SPPP in New Jersey?

Any construction project that disturbs one acre or more — or is part of a larger common plan of development reaching one acre — needs an SPPP under New Jersey permit NJ0088323.

New Jersey runs its own delegated stormwater program. Operators obtain coverage from New Jersey Department of Environmental Protection (NJDEP), Bureau of NJPDES Stormwater Permitting under NJPDES Construction Activity Stormwater General Permit (5G3) (NJ0088323), not directly from the EPA. A small subdivision, a solar pad, and a road-widening project all clear the same one-acre line.

New Jersey adds requirements worth flagging early: Soil erosion and sediment control plan certified by the Soil Conservation District under N.J.S.A. 4:24-43 (or approved under a municipal ordinance), prepared per the "Standards for Soil Erosion and Sediment Control in New Jersey" with all information required by its Appendix A2 (Parts E.1.b–c and D.5.a); Construction site waste control component of the SPPP per Attachment B: covered material storage, designated waste collection areas, lined and bermed concrete washout areas, spill kits (Part E.2; Attachment B); Request for Authorization (RFA) submitted through the NJDEP E-Permitting System before land disturbance begins, including the SCD certification code (Parts D.1.a and D.3.a.viii); Post a notice of permit coverage with the approved Permit Authorization page, the project NJPDES number (NJGxxxxxxx), a contact, and the NJDEP hotline statement, visible from the nearest public road (Part E.4); PCB controls for demolition of pre-1980 structures of 10,000 sq ft or more that discharge to PCB-impaired waters (Attachment B, Part 6); Pinelands and Highlands Preservation Area approvals where applicable (Parts A.2.b.vi, C.1.b, D.3.a.v).

What the plan must contain

A New Jersey SPPPis the site's compliance binder — the document an inspector opens first. It documents:

1. 1Site & project descriptionTotal and disturbed acreage, soils, slopes, and the sequence of construction.
2. 2Receiving waters & discharge pointsWhere stormwater leaves the site and the waterbodies it reaches.
3. 3Erosion & sediment control BMPsSilt fence, stabilized entrances, inlet protection, and stabilization measures.
4. 4Inspection schedule & recordsDated, signed inspection logs and the corrective actions taken.
5. 5Operator certificationThe SPPP is signed by the legally responsible party before work begins.

Required and conditional BMPs

Filing your Notice of Intent

After the Soil Conservation District certifies the soil erosion and sediment control plan, submit the Request for Authorization and fee through the NJDEP E-Permitting System before land disturbance begins; authorization takes effect when NJDEP certifies the RFA (Parts C.1.a, D.1.a, D.4.a, D.5).

A Notice of Termination closes coverage once the site reaches final stabilization. Keeping the SPPP and its inspection records on site is what keeps a project clear of stop-work orders.

Inspection requirements

Inspect at least once every calendar week (documented inspections of the areas of construction activity contributing to the authorized discharge, evaluating whether the SPPP is properly implemented and maintained or needs additional measures) (NJ0088323 (5G3) Part E.5.a). Every inspection is dated and signed, and any failed control is corrected before the next storm.

How New Jersey differs from the federal permit

Because New Jersey administers its own program, the federal EPA Construction General Permit does not apply directly here — the state permit governs. Sites inside a regulated municipal storm sewer system may carry additional local ordinance requirements on top of the state permit.

Frequently asked questions