White Plains Gedney Way Landfill Closure

AKRF has provided environmental consulting services for the City of White Plains to support composting operations and complete landfill closure requirements at the Gedney Way Leaf and Yard Waste Compost facility.

The facility was used for over 30 years as a disposal area for ash, municipal solid waste, construction and demolition debris, and other miscellaneous waste. The facility ceased waste disposal activities in 1979 and a soil cap was placed over the landfill.

AKRF's work for this site has included engineering and permitting for leaf composting, and an extensive subsurface investigation to provide the necessary data to complete closure of the former landfill. The subsurface investigation included documentation of a complete disposal history at the landfill, and collection of soil and groundwater samples to confirm the extent of landfill material and associated contamination. The investigation included a vapor intrusion assessment to evaluate on-site and off-site soil gas and indoor air quality associated with chlorinated solvent contamination from the landfill.

AKRF prepared a Subsurface Investigation Report that was approved by the New York State Department of Environmental Conservation (NYSDEC) and serves as the basis for completing the landfill closure design. Current activities include development of a Landfill Closure Plan that will document the engineered landfill capping and long term monitoring requirements for closure.  Implementation of the plan is anticipated in the Summer of 2011.

The consulting work completed satisfied the requirements of an NYSDEC Consent Order and state regulations outlined in 6NYCRR Part 360.