The Septic Improvement Program is available to qualified owners of residential property located
within Suffolk County.
Grant funding, of up to $10,000, 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, as well as toward attendant
engineering and design services. An additional $1,000 may be available toward installation of
Pressurized Shallow Drainfields for a maximum grant of up to $11,000. All other costs, including,
but not limited to, 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.