Suffolk County Septic System Improvement Program

Suffolk County Department of Health Services

Available Home Repair

About This Program

Grant program to help homeowners upgrade failing septic systems to nitrogen-reducing advanced treatment systems. Protects groundwater quality and helps meet environmental standards in Suffolk County.

Grant covers portion of cost to install advanced nitrogen-reducing septic system

Key Details

  • Grant up to $30,000 for septic system upgrades
  • For owner-occupied homes with failing systems
  • Requires nitrogen-reducing technology
  • Income limits apply (moderate income)
  • Protects Long Island groundwater

How to Apply

Get free help applying Visit Official Program Page Track this program

(631) 852-5810

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Deadline: Applications accepted year-round

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