RFI - Attachment G - Acid Sulfate Soils Investigation

Page                        : 4 of 5
Work Order                  : EB1911929
Client                      : DOUGLAS PARTNERS PTY LTD
Project                     : PROPOSED MEDICAL CENTRE

Analytical Results
Sub-Matrix: SOIL                                                        Client sample ID     BH 2 - 2.25          BH 2 - 3.5         BH 3 - 0.75          BH 3 - 2.0          BH 3 - 3.5
(Matrix: SOIL)
                                                            Client sampling date / time    24-Apr-2019 00:00   24-Apr-2019 00:00   24-Apr-2019 00:00   24-Apr-2019 00:00   24-Apr-2019 00:00
 Compound                                         CAS Number     LOR            Unit        EB1911929-006       EB1911929-007       EB1911929-008       EB1911929-009       EB1911929-010
                                                                                                Result               Result             Result               Result              Result

 EA033-A: Actual Acidity
   pH KCl (23A)                                           ----    0.1          pH Unit          4.1                 3.9                 4.0                 4.1                 4.1
   Titratable Actual Acidity (23F)                        ----     2         mole H+ / t        78                  87                  119                 94                   85
   sulfidic - Titratable Actual Acidity (s-23F)           ----   0.02        % pyrite S        0.13                 0.14               0.19                 0.15                0.14

 EA033-B: Potential Acidity
   Chromium Reducible Sulfur (22B)                        ----   0.005          %S             0.012               0.005               0.006               0.013               0.013
   acidity - Chromium Reducible Sulfur                    ----    10         mole H+ / t       <10                  <10                <10                  <10                 <10
   (a-22B)
 EA033-D: Retained Acidity
   KCl Extractable Sulfur (23Ce)                          ----   0.02           %S             0.03                 0.04               <0.02                0.04                0.03
   HCl Extractable Sulfur (20Be)                          ----   0.02           %S             0.05                 0.05               0.02                 0.04                0.04
   Net Acid Soluble Sulfur (20Je)                         ----   0.02           %S             <0.02               <0.02               0.02                <0.02               <0.02
   acidity - Net Acid Soluble Sulfur (a-20J)              ----    10         mole H+ / t       <10                  <10                <10                  <10                 <10
   sulfidic - Net Acid Soluble Sulfur (s-20J)             ----   0.02        % pyrite S        <0.02               <0.02               <0.02               <0.02               <0.02

 EA033-E: Acid Base Accounting
   ANC Fineness Factor                                    ----    0.5             -             1.5                 1.5                 1.5                 1.5                 1.5
   Net Acidity (sulfur units)                             ----   0.02           %S             0.15                 0.15               0.21                 0.17                0.16
   Net Acidity (acidity units)                            ----    10         mole H+ / t        92                  95                  132                 104                  97
   Liming Rate                                            ----     1        kg CaCO3/t           7                   7                  10                   8                   7
   Net Acidity excluding ANC (sulfur units)               ----   0.02           %S             0.15                 0.15               0.21                 0.17                0.16
   Net Acidity excluding ANC (acidity units)              ----    10         mole H+ / t        92                  95                  132                 104                  97
   Liming Rate excluding ANC                              ----     1        kg CaCO3/t           7                   7                  10                   8                   7