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NPL Site Narrative for National Presto Industries, Inc.

Eau Claire, Wisconsin

Federal Register Notice:  June 10, 1986

Conditions at proposal (October 15, 1984): National Presto Industries, Inc., has manufactured artillery projectiles in Eau Claire, Chippewa County, Wisconsin, since 1955. The plant operates on a standby status for the Department of Defense.

The company has a waste water permit from the State for two ponds (1.9 acres and 14 acres) and two seepage lagoons (each 3 acres) on its property. Process wastes flowed through the ponds, where metal particles and oils were removed, to the seepage lagoons, where the waste water was discharged to ground water. The sludge remaining in the ponds is contaminated with heavy metals and traces of volatile organic compounds, according to tests conducted by the Wisconsin Department of Natural Resources. The presence of the sludge and its improper treatment violate the State waste water permit.

The toxic nature of the sludge and hydrogeologic studies conducted by the State indicate a potential threat to the Eau Claire Well Field, which serves 57,500 people.

Status (June 10, 1986): EPA is considering various alternatives for the site.

For more information about the hazardous substances identified in this narrative summary, including general information regarding the effects of exposure to these substances on human health, please see the Agency for Toxic Substances and Disease Registry (ATSDR) ToxFAQs. ATSDR ToxFAQs can be found on the Internet at ATSDR - ToxFAQs (http://www.atsdr.cdc.gov/toxfaqs/index.asp) or by telephone at 1-888-42-ATSDR or 1-888-422-8737.

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