In July 1987 two adjacent sites, the St. Augusta Sanitary Landfill and the Engen Dump, were listed as one 75-acre site on the National Priorities List. Heavy metals, including arsenic, barium, cadmium, chromium, lead, and nickel have been tested for in ground water. Arsenic, barium, and lead were detected in wells on the landfill perimeter at levels above the Minnesota Department of Health Recommended Allowable Limits (RAL) for drinking water. A total of 34 VOCs were detected in monitoring wells near the landfill and dump borders. Six of these VOCs were detected at levels above their RALs. The site is considered to be of potential public health concern because of the risk to human health caused by the possibility of exposure to hazardous substances via ground water. Contaminant levels, if any, in surface water, air, soil, crops, or wildlife have not yet been determined and should be investigated during the Remedial Investigation.
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