Leachate is the liquid that drains from a landfill or through waste materials and has extracted some component of the material through which it has passed. The Regional Landfill’s leachate system consists of a series of pipes that collect leachate at the bottom of the landfill above the landfill’s liner. The leachate is pumped from within the landfill to two lined leachate ponds located at the back of the landfill, where solids settle out of the leachate. Leachate is then discharged via pipeline to Hampton Roads Sanitation District (HRSD), where it is treated. SPSA regularly samples leachate prior to discharging to HRSD. Leachate is tested for metals, COD, BOD, phenolics, and toxic organics.