Wastewater Quality Control Application

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Construction businesses that will need to temporarily discharge groundwater to a sanitary or combined sewer as a result of a construction project lowering the groundwater table during construction, regardless of the size of the construction project, must comply with the Sewer Use Regulations established in Title 15 of the Rules of the City of New York (RCNY) Chapter 19.

If the estimated discharge of groundwater is less or equal to 10,000 gallons per day, the applicant must obtain a groundwater discharge permit from the New York City Department of Environmental Protection (DEP). The permit will allow the applicant to discharge groundwater to the City sewer system (Sanitary and Combined sewers) for a limited period. To obtain a groundwater discharge permit, the applicant must first submit a Wastewater Quality Control Application to DEP.

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Cover letter describing the project.
Site Plan to scale.
Analytical report of the groundwater to be discharged.
For detailed information on these prerequisites please see instructions in the Groundwater Discharge to Sanitary or Combined Sewer Instructions at the link above - under Additional Information.
Licensed Engineer’s statement estimating the total volume to be discharged into the sewer during the entire period covered by the approval letter. Submit this statement only after receiving the letter of Approval for Groundwater Discharge to Sanitary or Combined Sewer from DEP.
Fees are determined on a case by case basis.

List of accepted payment methods.

  • Other
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Mail the Licensed Engineer’s statement to: NYC DEP – Bureau of Customer Services Field Operations 59-17 Junction Boulevard, 13th Floor Flushing, NY 11373
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Download and print the Wastewater Quality Control Application at the link above under Application Materials.
Fill out the form. Please note that the application needs the signature and seal of a Professional Engineer (P.E.) or a Registered Architect (R.A.) stating the accuracy of the plans.
Submit the application along with all of the prerequisites identified above to the address below under Contact Information.
Applicants will receive a response from DEP within three weeks after submission.
If application package is found satisfactory, the applicant will receive a letter of Approval for Groundwater Discharge to Sanitary or Combined Sewer from DEP.
Following the letter of Approval for Groundwater Discharge to Sanitary or Combined Sewer, the applicant will receive a letter from DEP requesting submission of a statement from a P.E. or R.A. estimating the total volume to be discharged into the sewer during the entire period covered by the approval letter. This information will allow DEP to calculate the sewer charges the applicant must pay according to the New York City Water Board Water and Wastewater Rate Schedule.
Mail the Licensed Engineer's statement to the address below under Additional Notes.
Applicants will receive a letter from DEP indicating the amount to be paid for the permit.
Bring the letter indicating the fee to be paid and a check for the indicated amount payable to the NYC Water Board to any of DEP BCS Borough offices. The permit will be issued on the spot or the applicant might be asked to come back the next day.
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Additional Resources
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Water & Sewer Forms

Rules of the City of New York (RCNY)

Instructions to Obtain Approval for Discharge

NYC Water Board Rate Schedule

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