| Western Mineral Products Company (W.R. Grace), 525 W. Oregon Street, Milwaukee, Wisconsin |
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| EPA Region |
Location of facility | Type of facility | Amount of ore received (in tons) |
Did EPA visit the site? |
Were samples taken? |
Results of evaluation |
|---|---|---|---|---|---|---|
| 5 | 525 W. Oregon Street, Milwaukee, Wisconsin | Former exfoliation facility | 3,135 | Yes-March 9, 2000 | No | According to an EPA database compiled from W.R. Grace shipping invoices, 3,135 tons of vermiculite ore from the Libby mine were shipped to this site between January and October 1967. Reports issued in 1953 and 1964 by the Bureau of Mines (at that time located in the U.S. Department of the Interior) indicated this facility had been a vermiculite exfoliation plant. Also, U.S. Geological Survey reports in 1970, 1975, and 1980 indicated that this facility was a vermiculite exfoliation plant. At the time of EPA's site visit, the property was a vacant lot located in a former riverfront industrial area that was being redeveloped for residential and commercial use. The Milwaukee Metropolitan Sewerage District had control of the property, and the site had been remediated under the authority of the Wisconsin Department of Natural Resources. Chrysotile asbestos waste materials (not the type of asbestos found in Libby ore) were removed from the site. The Sewerage District took samples and confirmed that no detectable levels of asbestos remained at the site. On the basis of this information, EPA determined no further action would be needed. |
| GAO-09-6R |