Gunnar Mine

 

 

© Copyright by Ch. Breier
© Copyright by Ch. Breier 2007

 

                                  Well, what should I say...  

 

 

The Gunnar mine operated in northern Saskatchewan, Canada from 1955 to 1964, extracting uranium from approximately 5 × 106 tonnes of ore by the sulphuric acid leach process. Large quantities of the acidic tailings were discharged, covering the entire bottom of Langiey Bay and forming a delta. Measurements of sediments showed release rates of up to 14.8 pCi210Pb and 155.6 pCi226Ra per m2/hr along with traces of228Th and uranium into the surface water of the bay. It was calculated that, at this rate, it would take 5.5 days for the226Ra concentrations to reach the ambient concentrations of 4.8 pCi/L found in Langley Bay surface water. Comparing this with the reported 14-day hydraulic retention time for the bay, the flux of radionuclides from the sediments can account for the entire concentration measured in the surface water. 

 

 

© Copyright by Ch. Breier
© Copyright by Ch. Breier 2007

 

                                         Gunnar Mine 

 

© Copyright by Ch. Breier
© Copyright by Ch. Breier 2007

 

 

 

© Copyright by Ch. Breier
© Copyright by Ch. Breier 2007

 

                      Dont like that, chemicals in the open... 

 

 

© Copyright by Ch. Breier
© Copyright by Ch. Breier 2007

 

              The Lake in  the front  are actually the old mine shaft.  

 

 

© Copyright by Ch. Breier
© Copyright by Ch. Breier 2007

 

I did some diving there, kind of scary. The shaft is 600feet deep. I just went down 45feet... 

 

 

© Copyright by Ch. Breier
© Copyright by Ch. Breier 2007

 

            Lot of chemicals and radio activ Material in the water ...

 

© Copyright by Ch. Breier
© Copyright by Ch. Breier 2007

 

                                       ORCA at Gunnar 

 

 

Next: Stoney Rapids

 

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