Abstract: A mechanically stabilized earth (MSE) wall and/or synthetic grass cover including alternating layers of granular fills and soil reinforcement geo-grids; a wire wall facing; and a synthetic grass cover for covering the wire wall facing, the synthetic grass comprising a geo-textile backing and a plurality of synthetic grass blades comprising synthetic yarns tufted into the geo-textile backing and having a length and density sufficient to substantially shade the geo-textile backing from solar UV rays.

Abstract: A cover system is provided for waste sites and environmental closures, in which the cover system comprises a synthetic grass and an impermeable geomembrane that can be applied without the use of heavy earthwork equipment as temporary or final cover to control odors, erosion, gas migration and contaminate migration. The invention allows installation on very steep slopes and does not require the use of an extensive anchoring system to resist wind uplift or slope failure. A gas collection system is located under the cover system for the collection of gas produced by the waste sites.

Abstract: A cover system is provided for waste sites and environmental closures, in which the cover system comprises a synthetic grass and an impermeable geomembrane that can be applied without the use of heavy earthwork equipment as temporary or final cover to control odors, erosion, gas migration and contaminate migration. The invention allows installation on very steep slopes and does not require the use of an extensive anchoring system to resist wind uplift or slope failure.