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Solid Waste
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Ontario County Landfill

Ontario County owns and operated the landfill located on the south side of Routes 5 and 20 in the Town of Seneca, NY from 1974 through 2003.  In 2003, the County signed a lease agreement with New England Waste Services of NY and Casella Waste Systems, Inc (Casella), to operate the landfill and oversee all aspects of daily operations.  

Ontario County and Casella take landfill odor control very seriously. If you smell odors offsite please notify us by calling the landfill office at 585-526-4420 during normal business hours, or click here.

This form will also give you the option to request inclusion on a mailing list for periodic notices about ongoing construction and other activity at the landfill.

Related Operations
The Materials Recycling Facility (MRF) is adjacent to the landfill and is operated by Casella. The MRF accepts recyclable materials from Ontario and 17 other Counties.
There is a gas-to-energy plant on the landfill site that is operated by Innovative Energy Solutions (IES). A series of pipes and wells collects gases produced by the decomposing waste. IES uses the collected gas to produce electricity which is then returned to the electrical grid.

The New York State Department of Environmental Conservation and the US Environmental Protection Agency issue permits, review and approve plans for construction, and perform regular inspections of landfill operations to ensure compliance with applicable laws and regulations. The Ontario County Landfill is not permitted to accept hazardous waste, medical waste, or radioactive materials.

Ontario County has received the necessary permits to expand the landfill footprint so that it can continue to accept waste through 2028.  Construction of the first expansion is ongoing and should be completed in the fall of 2016 with a new leachate collection pond and two new cells.

Interested in Recycling, Diversion, waste reduction, e-waste disposal, hazardous material disposal, or just finding waste haulers that serve your residence or business?  Please visit our Recycling/Waste Diversion Web Page by clicking here!