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Welcome to the Suffolk County Septic Improvement Program

The online application portal for the Septic Improvement Program (SIP) has been migrated to the Suffolk County Citizens Portal (Accela).

Please go to the website, register for an account if you have not already done so, and click on the "Environmental Quality" tab and then click on "Create an Application". You will need to read and accept the Terms and Conditions of the online portal before beginning your application. To access the Septic Improvement Program Grant Application, click on "Office of Ecology", then select "SIP Application", and then click the "Continue Application" button.

For guidance on registering and logging into the Suffolk County Citizens Portal (Accela) please view this User Guide.

Please Click Here for the SIP Grant Application.

For further information about the Septic Improvement Program, please contact us at the Suffolk County Department of Health Services, Office of Ecology, 360 Yaphank Avenue, Suite 2B, Yaphank, NY 11980, via e-mail: SepticDemo@SuffolkCountyNY.gov or by phone: (631) 852-5811.

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Suffolk County Government

H. Lee Dennison Bldg

100 Veterans Memorial Hwy
P.O. Box 6100
Hauppauge, NY 11788

Riverhead County Center

County Road 51
Riverhead, NY 11901