The Armour Road site was used for railroad herbicide manufacturing and blending from 1948 to 1986. Powdered arsenic (95% pure), monosodium arsenic, and various other chemicals were part of the herbicide production. Subsurface testing showed significant arsenic contamination in over 40,000 tons of soil. The EnviroBlend® team formulated site-specific treatment chemistry for the contaminated soil that was effective at low doses, saving the owner considerable off-site disposal costs.
Approximately 11,000 cubic yards of soil were initially treated at dosages ranging from 0.75% to 2.3% by weight. Table 1 provides a summary of full-scale treatability data on the initial soil stockpiles.
These case studies are examples of the extensive work EnviroBlend has completed across the United States. For more information on our project experience please contact us.