State of New Jersey - Department of Environmental Protection 2026

1. Click ‘Get Form’ to open the TWA-1 application in the editor.
2. In Section A, select the type of TWA permit action you are requesting. If modifying an existing TWA, include the permit number.
3. Complete Section B by selecting the types of treatment works associated with your application. If applicable, provide the NJPDES permit information in Section 7.
4. Fill out Section C only if you selected 'N.J.A.C. 7:9A Septic System' in Section A. Choose one of the TWA types listed.
5. Provide your name and contact details in the Applicant/Owner section, ensuring that all information is accurate and complete.
6. In the Location of Activity section, enter the facility's name and address, including municipality and county details.
7. For Estimated Construction Costs, detail the total cost and attach a breakdown as required. Include your application fee information.
8. Complete any additional sections as necessary, including certifications from property owners and engineers.

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