Attachment 3 - Revised Slope Stability Assessment

                                                    Construction Sciences Pty Ltd                              Laboratory: Sunshine Coast Laboratory
                                                    ABN:       74 128 806 735                                  Phone:         07 5452 0100
                                                                                                               Fax:           07 5452 0133
                                                    Address:                                                   Email:         [email protected]
                                                    32 Hi-Tech Drive,
                                                    Kunda Park QLD 4556


                                                     QUALITY OF MATERIALS REPORT
Client:                     Tectonic Geotechnical Pty Ltd                                                                         Report Number:                      3740/R/55917-1

Client Address:             924 David Low Way, Marcoola                                                                           Project Number:                     3740/P/2437

Project:                    Black Mtn Range Road                                                                                  Lot Number:

Location:                   Various                                                                                               Internal Test Request: 3740/T/42557

Supplied To:                Tectonic Geotechnical Pty Ltd                                                                         Client Reference/s:                 O/N 22328

Area Description:                                                                                                                 Report Date / Page:                 8/09/2022                   Page 1 of 1

Test Procedures             AS1289.3.6.1, AS1289.3.1.2, AS1289.3.2.1, AS1289.3.4.1, AS1289.2.1.1, AS 1289.3.3.1
Sample Number               3740/S/227750                                                                      Borehole name                                        BH 1
Sampling Method             Tested As Received                                                                 Start Sample Depth                (m)                0.4
Date Sampled                19/08/2022                                                                         End Sample Depth                  (m)                0.6
Sampled By                  Client Sampled                                                                                                       (m)
Date Tested                 29/08/2022                                                                         Material Source               Insitu
PSD Preparation                                                                                                Material Type                 -
Atterberg Preparation Dry Sieved / Oven Dried                                                                  Material Description MH Silt, high plasticity, trace of sand, trace of gravel
                                  Specification       Percent           Specification                                         PARTICLE SIZE DISTRIBUTION GRAPH
          AS Sieve (mm)
                                  Minimum (%)       Passing (%)         Maximum (%)
                                                                                                              100
              6.7                                       100
              4.75                                       92                                                    90
              2.36                                       88                                                    80
              1.18                                       86
                                                                                                               70
                                                                                        Percent Passing (%)




             0.600                                       84
                                                                                                               60
             0.425                                       83
             0.300                                       83                                                    50
             0.150                                       82                                                    40
             0.075                                       80
                                                                                                               30

                                                                                                               20

                                                                                                               10

                                                                                                                0
                                                                                                                                                                                                         6.7
                                                                                                                                                                            1.18



                                                                                                                                                                                       2.36



                                                                                                                                                                                                  4.75
                                                                                                                      0.075



                                                                                                                                    0.150



                                                                                                                                                 0.300

                                                                                                                                                          0.425

                                                                                                                                                                  0.600




                                                                                                                                                         AS Sieve Size (mm)

                                  Specification                         Specification                                                            Specification                                Specification
           Test Result                                 Result                                                       Test Result                                              Result
                                  Minimum (%)                           Maximum (%)                                                              Minimum (%)                                  Maximum (%)
Liquid Limit (%)                                        52                              0.075/0.425 Fines Ratio                                                               0.97
Plastic Limit (%)                                       32                              PI x 0.425 Ratio (%)                                                                1666.0
Plastic Index (%)                                       20                              LS x 0.425 Ratio (%)                                                                 791.4
Linear Shrinkage (%)                                    9.5                             Linear Shrinkage Defects -

Remarks                   Results apply to the sample/s as received.,




                                     Accredited for compliance with ISO/IEC 17025 – Testing



                          Accreditation Number:                      1986
                          Corporate Site Number:                     3740
                                                                                                                                   Approved Signatory: Thomas Hewitt
                                                                                                                                                 Form ID: W85Rep Rev 2