MacArthur Composting Facility

MacArthur Composting Facility
1101 Railroad Ave
Ronkonkoma, New York 11779
(631) 467-3337
Monday - Saturday 7 am - 2:45 pm (call for winter hours)

The Town of Islip currently operates a composting facility on a 40-acre site along the northern perimeter of MacArthur Airport in Ronkonkoma. The facility accepts yard waste, including leaves, tree and brush material (collected curbside) and also accepts yard waste brought to the facility by landscapers and residents.

As part of the Town's Don't Bag It Program, Grass clippings are accepted unbagged but are not collected curbside. The mixed yard waste is shredded and processed through controlled, aerobic decomposition into a rich soil conditioner called compost. Shredded tree material is processed into wood mulch. 

Compost can be mixed with subsoils to produce topsoil. Compost can improve water retention in sandy soils and increase permeability to water and air in clay soils. When mixed with soils, it can extend fertilizers by holding the nutrients in the soil and making them available for plant use.

Compost and wood mulch are available for pickup, free of charge, to all Islip residents. Compost and wood mulch are available for purchase by commercial customers.


Current Fee Schedule:

  • Residents - no charge
  • Islip Town Landscapers - $50 ton
  • Waste Oil - no charge

Hours of Operation:

Please be advised that the MacArthur Compost Facility schedules weekend operations during the hours of 7:00 am - 2:45 pm, beginning each year on the last weekend in March and continues into the Fall leaf season.

Compost Material is available free of charge to Town of Islip Residents. For a four (4) week period in the Spring, compost is also available at Byron Lake Park, Oakdale and Casamento Park, West Islip. Compost will be delivered on the following Fridays – April 22nd, April 29th, May 6th and May 13th, 2016. Compost is also available year-round at the Town’s MacArthur Composting Facility during normal operating hours.


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