RFI - Attachment G - Acid Sulfate Soils Investigation

Page                        : 3 of 5
Work Order                  : EB1911929
Client                      : DOUGLAS PARTNERS PTY LTD
Project                     : PROPOSED MEDICAL CENTRE

Analytical Results
Sub-Matrix: SOIL                                                        Client sample ID     BH 1 - 0.75          BH 1 - 2.0          BH 1 - 3.0          BH 2 - 0.5         BH 2 - 1.25
(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        EB1911929-001       EB1911929-002       EB1911929-003       EB1911929-004       EB1911929-005
                                                                                                Result               Result             Result               Result              Result

 EA033-A: Actual Acidity
   pH KCl (23A)                                           ----    0.1          pH Unit          4.4                 4.1                 4.1                 4.0                 4.4
   Titratable Actual Acidity (23F)                        ----     2         mole H+ / t        36                  70                  70                  95                   56
   sulfidic - Titratable Actual Acidity (s-23F)           ----   0.02        % pyrite S        0.06                 0.11               0.11                 0.15                0.09

 EA033-B: Potential Acidity
   Chromium Reducible Sulfur (22B)                        ----   0.005          %S             0.006               0.009               0.009               0.006               0.010
   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             <0.02                0.02               0.03                <0.02               <0.02
   HCl Extractable Sulfur (20Be)                          ----   0.02           %S             <0.02                0.03               0.03                <0.02                0.02
   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             0.06                 0.12               0.12                 0.16                0.12
   Net Acidity (acidity units)                            ----    10         mole H+ / t        40                  78                  77                  99                   72
   Liming Rate                                            ----     1        kg CaCO3/t           3                   6                   6                   7                   5
   Net Acidity excluding ANC (sulfur units)               ----   0.02           %S             0.06                 0.12               0.12                 0.16                0.12
   Net Acidity excluding ANC (acidity units)              ----    10         mole H+ / t        40                  78                  77                  99                   72
   Liming Rate excluding ANC                              ----     1        kg CaCO3/t           3                   6                   6                   7                   5