The Solid Waste Authority Landfill is located near the intersection of S.R. 710 and Jog Road in northern Palm Beach County. The landfill is owned and operated by the Solid Waste Authority.
Consisting of over 50 million cubic yards of airspace and with a footprint of approximately 330 acres, this landfill opened in 1989 and is currently expected to provide disposal capacity until nearly 2050 with the construction of the SWA's new mass burn waste-to-energy facility, Renewable Energy Facility #2, which is scheduled to be online in 2015.
The site consists of two landfills - a Class 1 landfill and a Class 3 landfill. The Class 1 landfill accepts ash and residue from the Renewable Energy Facility, as well as garbage and other wastes that federal and state regulations require be disposed of in a Class 1 landfill. The Class 3 landfill, which consists of 72 acres and 9 million cubic yards, accepts materials that are not required to be disposed of in a Class I landfill. This material is collectively referred to as "trash". Typical items include furniture, construction debris, roofing material, wood, carpet, and vegetative debris.
The SWA’s landfill is constructed in “cells” averaging approximately 10 acres. These cells are constructed over time as active cells are depleted and closed. Typical cell construction starts with highly compacted sand and is followed by a "geosynthetic" liner system. A layer of geosynthetic clay liner is installed. This is followed by a layer of 60 mil high density polyethylene (HDPE) plastic liner. Next, two layers of plastic geonet, which promotes water flow between the liners, are installed. A second layer of 60 mil HDPE liner is installed followed by another layer of geonet and a geotextile filter cloth. The purpose of this liner system is to prevent water that is passing through the landfill, which is referred to as "leachate", from reaching the water table.
The leachate is collected by the "leachate collection system", which is a system of perforated pipes located within a drainage medium (rounded river rock) and wrapped in filter cloth that is installed on top of the liner system. The leachate collected by the leachate collection system flows through a header, a gravity line, a pump station, and a force main to an injection well where it is disposed of.
The landfill operates twenty-four hours a day, seven days a week, but is only open to the public Monday through Saturday from 7:00 a.m. to 5:00 p.m.
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