| MacArthur Company, 936 Raymond Avenue, St. Paul, Minnesota |
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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 | 936 Raymond Avenue, St. Paul, Minnesota | Former exfoliation facility | 13,720 | Yes-April 19, 2000 | No | According to an EPA database compiled from W.R. Grace shipping invoices, 13,720 tons of vermiculite ore from the Libby mine were shipped to this site between January 1967 and October 1978. According to reports issued in 1953 and 1964 by the Bureau of Mines (at that time located in the U.S. Department of the Interior), this facility had been a vermiculite exfoliation plant. Reports published in 1970 and 1975 by the U.S. Geological Survey also indicated that this facility had exfoliated vermiculite. According to a company official EPA interviewed, the MacArthur Company had ceased operations at this site in 1975 and the site had been redeveloped in 1979. The official believed the company received the last shipment of vermiculite in the early 1970s but did not know the source of the vermiculite. The building that had housed the exfoliation operations had been completely remodeled and MacArthur was using it for office space. The company official said MacArthur was not using vermiculite in any of its operations at the time of EPA's visit. EPA did not observe any vermiculite ore, waste material, or product at the site. On the basis of this information, EPA decided no further action was needed. |
| GAO-09-6R |