Suffolk County’s Septic Improvement Program

Southampton Town Grant Program

Before you start work, complete and submit the following to the Community Preservation Department.

What is the problem?

  • Nitrogen pollution is the greatest threat to the health of our lakes, ponds, and harbors here in East Hampton
  • Issues include harmful algal blooms (HABs), low dissolved oxygen, and bacterial contamination leading to shellfish and bathing beach closures
  • The largest source of nitrogen is from substandard septic systems discharging bacteria and nutrients directly into the groundwater

Starting January 22, 2019 Suffolk County residents may be eligible for combined State and County grants of up to $30,000 to install an Innovative and Alternative nitrogen removal septic system. The additional funding will make it less expensive for homeowners to voluntarily replace aging and failing cesspools with state-of-the-art technologies that significantly improve treatment, extend system life, and enhance safety.

Grant funding, of up to $30,000, will be provided toward the purchase and installation of Suffolk County Department of Health Services approved Innovative and Alternative nitrogen removal onsite wastewater treatment system (I/A OWTS) and leaching structure. All other costs, including, but not limited to, Engineering costs, costs above the authorized grant amount, irrigation repairs, electrical improvements unrelated to system installation or other improvements necessary for the installation are the responsibility of the property owner/applicant. Post-installation landscaping restoration is also the responsibility of the property owner/applicant.

More information about the Suffolk County Septic Improvement Program including Grant and Low Interest Loan opportunities can be found at: