Abstract: A system for preventing erosion and release of chemicals from exposed soil, the system including a pattern of horizontally-disposed, closely-spaced tires substantially filled and surrounded by inorganic fill material for limiting efflux of the exposed soil surface. In a first preferred embodiment, the system comprises the array of tires with an underlayment of open-weave lyophobic textile covering the soil surface. In a second preferred embodiment, the system comprises the array of tires with an underlayment of open-weave lyophobic textile and a fixated fill material for the individual tires with the top of the horizontally-disposed area of exposed fixated fill material containing a surface layer of water-soluble inorganic aggregate.