The goal in Big River is to protect human health and the environment from exposure to lead. The lead waste resulted from mine ore processing that occurred at the site and the remedial action levels in residential soils are 400 mg/kg of lead. The remedy selected by the Record of Decision for this project opted to excavate the lead soils, remove them to a repository, and replace them with clean soils. The project was fixed-unit price for tons of excavation, cubic yards of backfill, and square feet of restoration. The selected remedy consists of excavation and relocation of lead-contaminated materials (mine waste, soil, gravel, crushed rock, vegetation, root balls, deteriorated landscaping, etc.) from residential properties. Over the two-construction season contract, ER remediated 235 parcels for a total of 101,132 tons of soil removed from 0-2 feet deep.