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Romanian Tailings Survey

Romanian Tailings Survey. Tisa River Basin. Background. In January of 2000 a tailings dam in Baia Mare failed releasing cyanide contaminated water into the Tisa River Basin In March of 2000 a tailings dam in Baia Borsa failed releasing sediment into the Tisa River Basin. Our Project.

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Romanian Tailings Survey

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  1. Romanian Tailings Survey Tisa River Basin

  2. Background • In January of 2000 a tailings dam in Baia Mare failed releasing cyanide contaminated water into the Tisa River Basin • In March of 2000 a tailings dam in Baia Borsa failed releasing sediment into the Tisa River Basin

  3. Our Project • SRK was brought in as part of a team to inventory and assess the risks posed by tailings dams and waste rock dumps in the Tisa River Basin

  4. Area of Study

  5. Pool to Close to Crest If the tailings pool gets to close to crest of the dam it can saturate the embankment and cause instability

  6. Seepage

  7. Erosion Erosion of the slopes if not controlled with BMPs can lead to tailings release into the environment

  8. Steep Slopes Over-steepened slopes in tailings can cause slumping failures and erosional failures

  9. Steep Slopes Over-steepened slopes and degrading sulfide ore have caused block failures

  10. Piping of Tailings Grey indicates fresh unoxidized tailings

  11. Cyanide Contaminated Water Cyanide contaminate water from gold production is treated, then released

  12. Tunnel Under Tailings • Any conduit under tailings is a danger during closure because of possible failure • Tunnels • Decant systems

  13. Emergency Spillways

  14. Tailings Revegetation

  15. Vegetation loss caused by acid rain Air Pollution

  16. Tailings Pond Fishing Only concern is bioaccumulation of metals in the fish

  17. Closing Mines This tailings dam and associated process plant closed on the 1st of May, two weeks before our inspection

  18. Mining Pictures

  19. The Communist Era

  20. Rosia Montana – Roman Mine

  21. Romanian Culture

  22. Romanian Culture

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