| 41. | This area was devastated shoot landfills and tailings, and rehabilitation requirements.
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| 42. | Kennecott now says it can keep mining without expanding its tailings impoundment.
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| 43. | The park was established on land formerly occupied by a tailings pond.
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| 44. | Old tailings were reworked by cyanide processing during the 1930s.
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| 45. | There was also a threat due to the tailings dam.
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| 46. | Tailings disposal sites represent potential sources of contamination for thousands of years.
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| 47. | WMPI, Inc in Pennsylvania is converting coal tailings to liquid fuels.
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| 48. | The upper part of the canyon is filled with tailings.
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| 49. | Beginning in February, the mill was to process only old tailings.
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| 50. | Despite the findings, Marcopper claimed the tailings were non-toxic.
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