Compiled Reference Document - MCU25/0020 (As Published)

                                                                                                                            Certificate of Analysis




                                                                                                                            NATA Accredited
                                                                                                                            Accreditation Number 1261
Tectonic Geotechnical Pty Ltd                                                                                               Site Number 20794 & 2780

924 David Low Way                                                                                                           Accredited for compliance with ISO/IEC 17025 – Testing
                                                                                                                            NATA is a signatory to the ILAC Mutual Recognition
Marcoola                                                                                                                    Arrangement for the mutual recognition of the
                                                                                                                            equivalence of testing, medical testing, calibration,
QLD 4564                                                                                                                    inspection, proficiency testing scheme providers and
                                                                                                                            reference materials producers reports and certificates.




Attention:                      Michael Cocks


Report                          1189604-W
Project name                    25040
Project ID                      11 RAVENWOOD DRIVE
Received Date                   Feb 19, 2025


Client Sample ID                                                                        GW-BH1
Sample Matrix                                                                           Water
Eurofins Sample No.                                                                     B25-Fe0047962
Date Sampled                                                                            Feb 18, 2025
Test/Reference                                                  LOR           Unit


Acidity (as CaCO3)                                               10           mg/L             < 10
Chloride                                                          1           mg/L              470
Conductivity (at 25 °C)                                          10          uS/cm             1400
pH (at 25 °C)                                                    0.1        pH Units            10
Redox Potential mV (relative to Ag/AgCl)                          1           mV                180
Sulphate (as SO4)                                                 5           mg/L              120
Sample Comment
Heavy Metals
Aluminium                                                        0.05         mg/L               36
Aluminium (filtered)                                             0.05         mg/L               7.5
Iron                                                             0.05         mg/L               24
Iron (filtered)                                                  0.05         mg/L               1.1




                                         Eurofins Environment Testing 1/21 Smallwood Place, Murarrie, QLD, Australia 4172                                    Page 1 of 9

  Date Reported: Feb 25, 2025                              ABN : 50 005 085 521 Tel: +61 7 3902 4600                                     Report Number: 1189604-W