003 ECM_22828362_v1_Reference Document - OPW23 0189 · OPW26/0094

                                                                      Notes Relating to this Report


                 Reports                                                other particles present (e.g. sandy clay) as set
                                                                        out below:
                 The report has been prepared by qualified
                 personnel, is based on the information                         Soil
                                                                                                    Particle Size
                 obtained from field and laboratory testing, and           Classification
                 has been undertaken to current engineering             Clay                less than 0.002mm
                 standards of interpretation and analysis.              Silty               0.002 to 0.06mm
                                                                        Sand                0.06 to 2mm
                                                                        Gravel              2 to 60mm
                 Every care has been taken with the report as it
                 relates  to     interpretation   of   subsurface
                                                                        Non-cohesive soils are classified on the basis of
                 conditions,     discussion    of    geotechnical
                                                                        relative density which can be correlated from
                 conditions and contains recommendations or
                                                                        the results of Standard Penetration Test (SPT) as
                 suggestions for design and construction.
                                                                        below:
                 However, unexpected variations in ground
                 conditions will occur. The potential for this will
                                                                                                    SPT ‘N’ Value
                 depend partly on testing, spacing and                  Relative Density
                                                                                                   (blows/300mm)
                 sampling frequency.                                    Very Loose          less than 4
                                                                        Loose               4 – 10
                 If variations are identified, Pacific Geotech          Medium Dense        10 – 30
                 would be pleased to assist with additional             Dense               30 – 50
                 investigations or advice to resolve the matter.        Very Dense          greater than 50

                 Copyright                                              Cohesive soils are classified on the basis of
                                                                        strength (consistency) and can be quantified
                 This report is the property of Pacific Geotech         by the Pocket Penetrometer test, Vane Shear
                 Pty Ltd. The report may only be used for the           test,    laboratory testing   or  engineering
                 purpose for which it was commissioned and in           examination. The strength terms are defined as
                 accordance with the Terms of Engagement of             follows:
                 proposal. Unauthorised use of this report is
                 prohibited.                                                                  Unconfined Compressive
                                                                         Classification
                                                                                                     Strength kPa
                 Borehole and Test Pit Logs                             Very Soft           less than 25
                                                                        Soft                25 - 50
                 The borehole and test pit logs presented in this       Firm                50 – 100
                 report are an engineering and/or geological            Stiff               100 – 200
                 interpretation of the subsurface conditions, and       Very Stiff          200 - 400
                                                                        Hard                greater than 400
                 their reliability will depend to some extent on
                                                                        Friable             strength not attainable – soil
                 frequency of sampling and the method of                                    crumbles
                 drilling or excavation.
                                                                        Rock types are classified by their geological
                 Interpretation of the information and its
                                                                        names, together with descriptive terms
                 application to design and construction should
                                                                        regarding weathering, strength, defects, etc.
                 therefore take into account the spacing of
                 boreholes or pits, the frequency of sampling,                               Planarity
                 and the possibility of other than ‘straight line’      CU                  Curved
                 variations between the test locations.                 DIS                 Discontinuous
                                                                        IR                  Irregular
                 Description and Classification Methods                 PR                  Planar
                                                                        ST                  Stepped
                 The description and classification of soils and        UN                  Undulose
                 rocks used in this report are based on AS 1726.

                 Soil types are described according to the
                 predominating particle size and behaviour as
                 set out in the attached Unified Soil
                 Classification Table qualified by the percent of



                 October 2017                                                                                       pg. 1

Document Set ID: 22828362
Version: 1, Version Date: 26/02/2024