Dirt road sediment ranks second only to row cropping as the primary source of sediment flowing into our streams. The picture is a spray application of 'Coherex' in Gilmer County. This is a stable, nonvolatile non-leachable water emulsion consisting of approximately 60% petroleum resins and 40% wetting solution. When in contact with ground surfaces, it coats soil particles and forms membranes that attach themselves to adjacent particles. This results in large agglomerates too heavy to be easily dislodged and carried away by water.