Acid Sulfate Management Plan · MCU16/0103

                                                                                                                                                                   BE018333 R0
                                                                               QC SUMMARY


   MB blank results are compared to the Limit of Reporting
   LCS and MS spike recoveries are measured as the percentage of analyte recovered from the sample compared the the amount of analyte spiked into the sample.
   DUP and MSD relative percent differences are measured against their original counterpart samples according to the formula : the absolute difference of the two results divided
   by the average of the two results as a percentage. Where the DUP RPD is 'NA' , the results are less than the LOR and thus the RPD is not applicable.


  Alkalinity     Method: ME-(AU)-[ENV]AN135
  Parameter                                                                       QC             Units         LOR            MB         DUP %RPD          LCS
                                                                               Reference                                                                 %Recovery
  Bicarbonate Alkalinity as CaCO3                                               LB028678          mg/L           5             <5

  Hydroxide Alkalinity as CaCO3                                                 LB028678          mg/L           5             <5

  Carbonate Alkalinity as CaCO3                                                 LB028678          mg/L           5             <5

  Total Alkalinity as CaCO3                                                     LB028678          mg/L           5             <5           0 - 9%        103 - 104%



  Chloride by Discrete Analyser in Water    Method: ME-(AU)-[ENV]AN274
  Parameter                                                                       QC             Units         LOR            MB         DUP %RPD          LCS            MS
                                                                               Reference                                                                 %Recovery      %Recovery
  Chloride, Cl                                                                  LB028711          mg/L           1             <1           0 - 1%        102 - 104%     104 - 110%



  Metals in Water (Dissolved) by ICPOES       Method: ME-(AU)-[ENV]AN320/AN321
  Parameter                                                                       QC             Units         LOR            MB         DUP %RPD          LCS            MS
                                                                               Reference                                                                 %Recovery      %Recovery
  Magnesium, Mg                                                                 LB028720          mg/L           0.1          <0.1            7%             97%            107%

  Potassium, K                                                                  LB028720          mg/L           0.1          <0.1            1%             97%            117%

  Sodium, Na                                                                    LB028720          mg/L           0.5          <0.5            2%             97%            71%



  Sulphate in water      Method: ME-(AU)-[ENV]AN275
  Parameter                                                                       QC             Units         LOR            MB         DUP %RPD          LCS            MS
                                                                               Reference                                                                 %Recovery      %Recovery
  Sulphate, SO4                                                                 LB028710          mg/L           1             <1            57%          103 - 104%      78 - 98%



  Trace Metals (Dissolved) in Water by ICPMS     Method: ME-(AU)-[ENV]AN318
  Parameter                                                                       QC             Units         LOR            MB         DUP %RPD          LCS
                                                                               Reference                                                                 %Recovery
  Iron, Fe                                                                      LB028721          µg/L           5             <5             4%            116%




21-October-2016                                                                                                                                                                       Page 3 of 5