11. Two circular open-pit mines are visible, as well as a number of tailings ponds and tailings piles. 12. Retrieved 2017-01-05 The clean up bill for the mine and tailings pond fell to the federal government. 13. In April 2008, considerable press coverage arose when 500 ducks landed on the Syncrude tailings pond and died. 14. Water / slurry levels in the tailings pond must be managed for stability and environmental purposes as well. 15. Almost all the water used to produce crude oil using steam methods of production ends up in tailings ponds . 16. Oil sands recovery techniques create huge amounts of contaminated waste water, which is stored in " tailing ponds ". 17. In late April 2008 hundreds of ducks landed in a northern Alberta tailings pond belonging to Syncrude, where most died. 18. Climax also started the reclamation of a particular highly acidic tailing pond at the head of the Eagle River drainage. 19. The soupy byproduct of the cyanide nitrate chemical process is both toxic and radioactive and collects in a tailing pond . 20. The tailings ponds near the Lucky Strike mine site contain millions of tons of material that is 30 % barite.
