Regions: North Slave Region
Tags: mining impacts, arsenic, chemistry, metal contamination, tailings disposal
| Principal Investigator: | Caughill, Dave (2) |
| Licence Number: | 13697 |
| Organization: | Golder Associates Ltd. |
| Licensed Year(s): |
2004
|
| Issued: | Aug 09, 2004 |
| Project Team: | Zsolt Kova |
Objective(s): Between 1948 and 1951, approximately 375 000 tons of tailings were deposited directly into Back Bay from Giant Mine along the northwest shore via a drainage channel. The submerged tailings contain high levels of metals, particularly arsenic. Over time, the tailings deposit in Back Bay has been eroded and transported north along the shoreline towards the Yellowknife River. The full extent of tailings drift within Back Bay and Yellowknife Bay has not been investigated in a thorough and systemic manner since the 1980's. This study is required to determine the aerial extent of historic tailings and current chemical and biological influences in Back Bay and Yellowknife Bay.
