The Bunker Hill Superfund site in the Coeur d'Alene River Basin is the second largest Superfund site in the nation. Revegetation of these soils along with metal contaminated mine tailings will limit the spread of contaminents via the Coeur d'Alene River system. Success in restoration is both environmentally and politically important. Co-utilization of residuals can correct these problems.
Wood ash has a high calcium carbonate equivalent that cures soil acidity.
Biosolids limit metal toxicity, provide organic matter that both improves soil tilth,and provides a substrate for soil microbes, and is a slow release nutrient source. Characteristics of the soils and materials. The overall goal of this program at Bunker Hill was to investigate methods for establishment of stable, long-term vegetated and healthy ecosystems. To achieve a self-sustaining plant cover To reduce metal phytoavailability. To develop application technique efficacy.