Salem District

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Yaquina Head Outstanding Natural Area contaminated soil project environmental assessment, finding of no significant impact, and decision record
(2008-06-23) United States. Bureau of Land Management. Salem District
The Proposed Action is to remove contaminated soils from an area of approximately 2,600 square feet near the lighthouse. An estimated 72 cubic yards of soil would be excavated with power equipment and placed in temporary storage nearby while laboratory analysis determines the actual lead levels in the excavated soil. Once the lead levels in the excavated soil have been determined the soil will be disposed of at an appropriate landfill. Uncontaminated soil would be brought in to replace the excavated soil, and the site would be re-contoured and revegetated with red fescue. Another approximately 5,800 square feet of the area east of the lighthouse would be treated with phosphate solution to immobilize lead in the soil and reduce leaching and effects on humans and wildlife. This would involve spraying a liquid solution on the soil surface and, where existing vegetation allows, tilling the surface soil to increase distribution of the phosphate solution. Tilling would be accomplished with a small tractor-mounted tiller or walk-behind tiller.