RFI -Attachment 6 - Geotechnical Investigation Report CORE

Quality Control Results


                                                                                                                                 Acceptance Pass Qualifying
                               Test                                       Units        Result 1                                    Limits   Limits Code
Method Blank
Chloride                                                                  mg/kg           <5                                         5       Pass
Conductivity (1:5 aqueous extract at 25°C as rec.)                        uS/cm           < 10                                       10      Pass
Sulphate (as SO4)                                                         mg/kg           < 30                                       30      Pass
                                                             QA                                                                  Acceptance Pass Qualifying
                  Test                Lab Sample ID                       Units        Result 1
                                                            Source                                                                 Limits   Limits Code
Duplicate
                                                                                        Result 1       Result 2        RPD
Chloride                              M21-Se12617             NCP         mg/kg           24             22             11          30%         Pass
Conductivity (1:5 aqueous extract
at 25°C as rec.)                       B21-Se10919             CP         uS/cm           < 10           < 10            <1         30%         Pass
pH (1:5 Aqueous extract at 25°C as
rec.)                                 B21-Se10919              CP       pH Units           6.1            5.9          pass         30%         Pass
Resistivity*                          B21-Se10919              CP        ohm.m            2100           1800           16          30%         Pass
Sulphate (as SO4)                     M21-Se12617             NCP        mg/kg            2100           1900           9.0         30%         Pass
% Moisture                            M21-Se10612             NCP          %               7.9            7.8           1.0         30%         Pass




                                       Eurofins Environment Testing 6 Monterey Road, Dandenong South, Victoria, Australia 3175                         Page 5 of 6
 Date Reported: Sep 14, 2021                             ABN : 50 005 085 521 Telephone: +61 3 8564 5000                                  Report Number: 822393-S