Compost and green waste can be used as alternative daily covers when they meet regulatory requirements for effectiveness and safety. Shredded yard trimmings, food waste, or other organic materials can form a layer over the day’s waste to control odors, reduce litter, and discourage pests. These materials are often chosen because they are readily available and can be less expensive than hauling soil.
They also have the benefit of being biodegradable, so they break down over time and can contribute to the landfill’s overall decomposition process. To be effective, the material must be applied at a thickness sufficient to fully cover the waste and prevent exposure to wind and rain. Landfill operators monitor the performance of compost or green waste covers to ensure they remain intact and do not create environmental problems such as excess runoff or leachate.