The National Lead/Taracorp/Golden Auto Parts Site was included on the National Priorities List in 1982. A secondary lead smelter was operated on the site from 1940 until 1981. Lead is the primary contaminant of concern associated with the site. Lead levels in on-site soil samples ranged from 77 to 130,000 mg/kg. Samples from one of on-site groundwater wells consistently had elevated lead (25-85 micro g/l) and arsenic (69-880 micro g/l) concentrations, whereas the concentrations in samples from a second well ranged from 1-8 micro g/l for lead and from
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