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Basinwise

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

Not verified for New Jersey

We have not read the construction general permit that governs this jurisdiction, so we will not name one. Confirm which permit applies with the state permitting authority before you break ground.

Who may prepare the plan

Conditional, depends on the site

New Jersey gates plan preparation conditionally. The gate is triggered by plan scope rather than acreage: Engineering-related items only, not the whole plan. Confirm which case applies to your plan before relying on a generated document.

Qualifying routes

  • Licensed professional seal on engineering-related items only
VerifiedN.J.A.C. 2:90-1.4(c)4Source

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

Not verified

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

  • We could not verify which permit governs a construction site in New Jersey. Confirm with the state permitting authority before you break ground.
  • New Jersey gates plan preparation conditionally. The gate is triggered by plan scope rather than acreage: Engineering-related items only, not the whole plan. Confirm which case applies to your plan before relying on a generated document.
  • 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. 1

    Coverage threshold

    The project disturbs 1 acres, at or above the 1 acre threshold, so it needs permit coverage.

    VerifiedPart 1.1.2Source
  2. 2

    Permitting authority

    New Jersey runs its own NPDES programme, and we have not verified its construction general permit. We will not guess its requirements.

  3. 3

    Preparer credential

    New Jersey gates plan preparation conditionally. The gate is triggered by plan scope rather than acreage: Engineering-related items only, not the whole plan. Confirm which case applies to your plan before relying on a generated document.

    VerifiedN.J.A.C. 2:90-1.4(c)4Source

What to do next

  1. 1. Confirm the governing permit. We have not verified this. Contact the New Jersey permitting authority and ask which construction general permit covers your site. the New Jersey permitting authority
  2. 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. 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. 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.

Screen your site

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Total land disturbance over the whole project, including staging and access. This decides whether you need a permit at all.

Optional. If you phase the work, the most that will be disturbed at once. Leave blank if the whole site is open together. The stabilisation deadline turns on this figure, not the total.

A half acre lot inside a 40 acre subdivision is covered even though the lot alone is under the threshold. This is the most commonly missed trigger in the permit.

Receiving water and site conditions(optional, but they change the inspection frequency)

May allow a reduced inspection frequency during the seasonally dry period.

EPA keeps permitting authority in Indian country even inside a state that runs its own programme.

No account, no card, nothing 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?

We have not verified which permit governs construction stormwater in New Jersey. Confirm with the New Jersey permitting authority before you break ground. We will not name a permit we have not read.

Does New Jersey require a qualified preparer for the plan?

New Jersey gates plan preparation conditionally. The gate is triggered by plan scope rather than acreage: Engineering-related items only, not the whole plan. Confirm which case applies to your plan before relying on a generated document.

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.

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