Specifications include, but are not limited to: Provide all labor, materials, equipment and incidentals necessary to produce 2,400 tons or 1,600 cubic yards of sanding material. Add 10% contractor furnished salt by weight to 2,400 tons of sanding material or add 10% contractor furnished salt by weight to 1,600 cubic yards of sanding material. This stockpile material will be applied in PM 10 Nonattainment Areas. Due to the environmental impact, the stockpile material is required to meet the gradation in the table below. Stockpile material to facilitate water runoff.