A Message from the Supervisor

“Welcome to Islip, the 3rd largest town in New York State, but with an endearing small town feel. We are so proud of our town…our beaches, golf courses, marinas, parks, housing opportunities for all, businesses, industrial parks, healthcare and educational institutions including our own Islip MacArthur Airport that provides many job opportunities. I sincerely hope you find this website helpful.” Angie


Town of Islip Municipal Stormwater Management

Requirements and Reports

MS4 Report | Management Plan.

Federal and State Resources

NY State and US Government links.

Informational Resources

Learn more about stormwater.

In compliance with the federal Clean Water Act and New York State Environmental Conservation Law, the Town of Islip has developed and implemented a local management plan to help reduce pollutant loading in coastal waters and improve the water quality in our estuaries, retention basins, Lake Ronkonkoma and the Great South Bay.

The Stormwater Management Program is a blueprint for the Town of Islip, local businesses and residents to use to help prevent contamination of coastal waters, water ways and ground waters from pollutants and toxins found in everyday materials, including, but not limited to: trash, chemicals, pet waste, grease, oil, cleaners, paints and sediments. Stormwater carries pollutants from these sources through Islip’s Municipal Separate Storm Sewer System (MS4) where they pose a threat to surface water and drinking water quality.

Requirements and Reports

The Federal Government and New York State provide authorization for small municipalities to discharge stormwater through the administration of a Pollutant Discharge Elimination System permit. The Town of Islip maintains and enforces a stormwater management program designed to reduce the discharge of pollutants from stormwater to the maximum extent practicable and protect water quality in accordance with the Clean Water Act. (Back to top)

Federal and New York State Resources

Managing the Town’s water resources is a complex task important to everyone. The below links provide access to federal and state resources to educate, build best practices and involve our residents in managing our most important natural resource – our water. (Back to top)

Informational Resources

The below links provide access to websites and information dedicated to the education and involvement of the public in improving our water resources. These links provide: professional, academic, government and business resource links to webpages on stormwater management, conservation and being a good steward of our water resources. (Back to top)