NJState-AdministeredSWPPP Requirements in New Jersey
New Jersey administers its own NJPDES program. The stormwater pollution prevention plan is called an SWP3 in NJ. For sites disturbing 5,000+ sq ft, Soil Conservation District SESC approval is required before earth disturbance begins. NJDEP is highly active in enforcement, conducting unannounced inspections. The $200 NOI fee applies to NJPDES permit coverage.
New Jersey SWPPP Key Facts
- ✓NJ uses 'SWP3' terminology instead of SWPPP
- ✓SESC plan required for 5,000+ sq ft — approved by Soil Conservation District
- ✓$200 NOI fee for NJPDES coverage
- ✓NJDEP conducts unannounced compliance inspections
- ✓Construction stormwater is authorized under NJDEP category 5G3 (Request for Authorization / e-permitting — project-specific authorization numbers vary)
Administering Agency
- Agency
- New Jersey Department of Environmental Protection (NJDEP)
- Phone
- 609-292-0407
- dep.stormwater@dep.nj.gov
- Website
- NJDEP Stormwater Program
Permit Details
- Permit Name
- NJPDES Stormwater — Construction Activity (Industrial Stormwater Program category 5G3)
- Permit Document
- View Current Permit
SWPPP Thresholds & Triggers
- Acreage Threshold
- 1 acre or more; Soil Conservation District SESC approval required for 5,000 sq ft or more
Projects disturbing 5,000+ sq ft require a Soil Erosion and Sediment Control (SESC) plan approved by the local Soil Conservation District before any earth disturbance.
Inspection Requirements
- Inspection Frequency
- At least every 7 days and within 24 hours of a 0.5-inch or greater storm event
- Rain Event Threshold
- 0.5 inches within 24 hours
- Certified Inspector
- Not required by state
NJ uses the term SWP3 (Stormwater Pollution Prevention Plan) rather than SWPPP. NJDEP is known for active enforcement; SWP3 must be maintained and available on-site.
Penalties & Enforcement
- Max Civil Penalty (Per Day)
- $10,000 per day per violation; up to $50,000/day for significant violations
- Criminal Penalties
- Up to $20,000/day and imprisonment for criminal violations
NJDEP conducts unannounced site inspections; Soil Conservation Districts also enforce SESC requirements independently.
Permit Fees
- NOI Filing Fee
- $200
- Other Fees
- SESC plan review fee paid to Soil Conservation District (varies)
How New Jersey Differs from Federal Requirements
- ⚠NJ has its own NPDES program; EPA CGP does not apply
- ⚠SWP3 terminology and Soil Conservation District SESC review are NJ-specific
- ⚠5,000 sq ft SESC threshold is lower than the federal 1-acre NPDES threshold
- ⚠$200 NOI fee is NJ-specific
- ⚠NJDEP unannounced inspection program is more aggressive than typical EPA enforcement
SWPPP Tips for New Jersey
- ➤Obtain SESC approval from Soil Conservation District before mobilizing equipment
- ➤Keep a complete, up-to-date SWP3 in a weatherproof binder on-site at all times
- ➤Log all inspections immediately — NJDEP inspectors frequently request records on the spot
New Jersey SWPPP FAQs
What is a SWP3 and how does it differ from a SWPPP?+
SWP3 (Stormwater Pollution Prevention Plan) is NJ's term for what is federally called a SWPPP. The content requirements are equivalent but NJ terminology is used in all permit documents.
Is SESC approval the same as NJPDES permit coverage?+
No. SESC approval from the Soil Conservation District is required for 5,000+ sq ft of disturbance and addresses erosion control. NJPDES coverage under the construction activity general permit (5G3) is separately required for 1+ acre.
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