The following form is used to facilitate a water service connection. If you already have service with SCWA and are moving to a new location in Suffolk County, see Moving? Let Us Know!

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Note: The Suffolk County Department of Health no longer requires water availability letters for existing SCWA customers or for premises that have existing water main in the street.

New Service for a Residential Customer
You will need:

  1. Survey of the subject property
  2. Tax map number
  3. Address of property to be served
  4. Completed application card (plus water main extension agreement and service application if applicable).
  5. Connection fees

Please contact our New Service Department at (631)218-1148 for an information packet to be mailed or picked up in person. The packet contains detailed information and procedures to assist you. 


New Service for a Commercial Customer
You will need:

  1. Survey of the subject property
  2. Tax map number
  3. Mailing address, telephone number of applicant or their agent 
  4. Water flow requirements, including fire flows
  5. Connection fees
  6. Security deposits

Please contact our New Service Department at (631) 218-1148 for an information packet to be mailed or picked up in person. The packet contains detailed information and procedures to assist you.