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Adding Chemicals to Water Supply - Permit

Operating & Renewing

Operating Requirements

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    Permittee must comply with all requirements outlined in Section 141.011 of the NYC Health Code about the equipment used and the chemicals allowed, including sampling requirements. To view the Health Code, go to and select Article 141.
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    Permittees must maintain or retain the services of a suitable chemical laboratory equipped to analyze water, in accordance with the latest edition of Standard Methods for the Examination of Water and Wastewater. The laboratory must sample the water as it enters and leaves the chemical addition device and analyze samples as required. Records of such analysis must be kept on file by the permittee for at least two years.
  • 3
    Proof of Worker's Compensation and Disability Insurance, including the name of the insurance carrier, the policy number, and the expiration date must be submitted when you apply for a permit and when you renew. Or, if exempt, a copy of Form CE-200 stamped by the Worker's Compensation Board with the New York State-assigned Exemption Certificate Number. The certificate must list the New York City Department of Health and Mental Hygiene as the Certificate Holder.
  • Ready to Renew?

    Steps to renew online:

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    Follow the instructions on your renewal notice to renew.
  • Steps to renew by mail:

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    Follow the instructions on your renewal notice to renew by mail.
  • Steps to renew in person:

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    You may renew your permit in person at the DCWP Citywide Licensing Center. If you send someone to renew for you, they must present an Authority to Act on your behalf.

    NYC Department of Consumer and Worker Protection (DCWP)

    Licensing Center
    42 Broadway, Lobby
    New York, NY 10004