REFERENCE DOCUMENTS - RAL25/0004 (As Published)

                           ○   pH 4.9 (measured calcium chloride method),
                           ○   Total organic carbon content <0.5% (measured), and
                           ○   Iron content 5.16% (measured).
                    •      Aesthetic considerations (NEPM provides guidance only)
                           -   No foreign material (scrap/waste) such as plastic, rubber, metals, timber, steel, brick/concrete
                               (>100mm); and
                           -   No discoloured or malodourous soil or water.

                    •      Fine grained and clay criteria were adopted for ESL and HSL criteria based on field observations.
                    •      EILs determined by using the NEPC Ecological Investigation Level Calculation Spreadsheet and
                           measures or estimated inputs for the site.
                    The SAC are provided in Table 14 below. Where multiple criteria are available for an analyte, the adopted
                    criteria are the lowest and highlighted in bold.
                    Table 14: Soil Assessment Criteria (mg/kg)
                                                                  EIL            ESL             HSL A & HSL B

                                       Analyte                  Urban residential and    HIL A                      HIL C        SML
                                                                                                   0 m to <1 m
                                                                 public open space

                                                                              Metals

                    Arsenic                                       100              -      100           -            300            -

                    Cadmium                                        -               -      20            -             90            -

                    Chromium                                      600              -      100           -              -            -

                    Copper                                        45               -     6,000          -            300            -

                    Lead                                         1,100             -      300           -          17,000           -

                    Nickel                                         8               -      400           -            600            -

                    Zinc                                          140              -     7,400          -           1,200           -

                    Mercury                                        -               -      40            -          30,000           -

                                                              Organochlorine Pesticides (OC)

                    alpha-BHC                                      -               -       -            -              -            -

                    Hexachlorobenzene (HCB)                        -               -      10            -             10            -

                    beta-BHC                                       -               -       -            -              -            -

                    gamma-BHC                                      -               -       -            -              -            -

                    delta-BHC                                      -               -       -            -              -            -

                    Heptachlor                                     -               -       6            -             10            -

                    Aldrin                                         -               -       -            -              -            -




        125 Lot 105 SP118458 Cooroy DSI 12062024 Rev0                                                 Lot 105 SP118458, Cooroy, QLD, 4563
        12/06/2024                                                       54                        Detailed Site Contamination Investigation
Document Set ID: 23717062
Version: 0, Version Date: 01/01/1900