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NY State Septic System Replacement Program (SSRP) for Suffolk Homeowners

Last reviewed October 17, 2026 · Official sources linked throughout

New York's State Septic System Replacement Fund Program (SSRP) helps homeowners in participating counties, including Suffolk, replace cesspools and failing septic systems. In Suffolk it's administered by the county alongside the Septic Improvement Program, so one county application covers both. [source]

How much

• Enhanced systems (designed to reduce total nitrogen to 19 mg/L or less, like Suffolk's I/A systems): up to 75% of eligible costs, max $25,000 per property.
• Conventional septic projects: up to 50% of eligible costs, max $10,000 per property.

[state outline] [county]

Who's eligible

• Single or two-family residences and small businesses with design flow up to 1,000 gallons per day. [state outline]
• Seasonal or secondary homes may be eligible if the county determines the existing system has the reasonable potential to adversely impact a priority waterbody. [state outline]
• New construction isn't eligible, and connecting to a public sewer isn't an eligible project. [state outline]
• The fund targets Priority Geographic Areas. On Long Island these are the priority areas identified in the Suffolk County (and Nassau) Nine Element Plans. [DEC]

How it's paid

In Suffolk, state grant funds can go directly to an approved installer or be reimbursed to the owner, after installation is complete. [source]

How to apply

Apply through Suffolk County's portal. DEC tells homeowners to contact their county, which determines eligibility. [DEC] Step-by-step application guide.

Independent guide. Not affiliated with, endorsed by, or operated by Suffolk County, New York State, or any installer. This page is general information, not legal or financial advice.

Sources

• NYS DEC/EFC – State Septic System Replacement Fund Program Outline Summary (PDF) — June 2026 edition
• NYS DEC – State Septic System Replacement Fund Program (SSRP) — page accessed Oct 17, 2026
• Suffolk County – Septic Grants Information Homepage — page accessed Oct 17, 2026
• Suffolk County – Septic Improvement Program FAQ (April 2026, PDF) — dated 4-2026

Last reviewed October 17, 2026. Program rules change; always confirm with Suffolk County Department of Health Services (631-852-5811, SepticGrants@SuffolkCountyNY.gov).