6. Noosa River DMP Ver0 (Combined)

                                                                         Acid Sulfate Soil Report
CLIENT:                                             Coastal Management                    PROJECT NUMBER:                                         PG-5412
ADDRESS:                                                Noosa River                       REPORT NUMBER:                       22-170                Rev. No.0
                                                                                          REPORT DATE:                                            3.11.22
PROJECT NAME:                                  Dredging Sampling Investigation
                                                                                          TEST METHOD:                                            AS4969


                                                                                 SAMPLE LOCATION
                                 SAMPLING METHOD:                                                                              Disturbed
                                     SAMPLED BY:                                                                             Pacific Geotech
                                   DATE SAMPLED:                                                                                30.10.22
                                   DATE RECEIVED:                                                                               21.10.22
                                    DATE TESTED:                                                                                 1.11.22
                            PREPERATION/ANALYSIS METHOD:                                                                     ENV01/ENV02

                                   MATERIAL TYPE:                                                                                 Sand



Lab Ref Number                                                22-170-1       22-170-2     22-170-3    22-170-4      22-170-5         22-170-6          22-170-7   22-170-8
Sample Description                   Unit           LOR         BH08           BH08        BH08.1      BH08.1        BH08.2           BH08.2            BH08.3     BH08.3
Depth (m)                                                      0.0-0.2        0.6-1.2      0.0-0.3     0.5-1.0       0.0-0.2          0.6-1.2          0.0-0.25    0.5-1.1
pHKCL                               pH Unit          0.1          9.3             9.5         9.7            8.7       9.5                9.6             9.6        9.6
Chromium Reducible Sulfur           %w/w S          0.005        0.032           0.043       0.077          0.081     0.044              0.048           0.036      0.041
Chromium Reducible Sulfur           mol H+/t          3           20              27          48             50        28                 30               22        26
TAA pH to 6.5                       mol H+/t          2           <2              <2          <2             <2        <2                 <2               <2        <2
s-TAA pH to 6.5                     %w/w S          0.005       <0.005           <0.005     <0.005      <0.005       <0.005              <0.005          <0.005    <0.005
KCl Ext S                           %w/w S          0.005        0.019           0.011       0.019          0.017     0.022              0.023           0.024      0.030
HCl Ext S                           %w/w S          0.005        0.019           0.018       0.023          0.023     0.024              0.024           0.024      0.035
Retained Acidity (SNAS)             %w/w S          0.005         N/R             N/R        N/R            N/R       N/R                 N/R             N/R       N/R
Retained Acidity (SNAS)             mol H+/t          3           N/R             N/R        N/R            N/R       N/R                 N/R             N/R       N/R
ANC                                 %CaCO3           0.1          0.4             0.7         0.8            0.3       0.7                0.4             0.5        0.8
ANC                                 mol H+/t          5           77              148        155             60       136                 70              107       166
Net Acidity                         mol H+/t          5           20              27          48             50        28                 30               22        26
Net Acidity                         %w/w S          0.005        0.032           0.043       0.077          0.080     0.045              0.048           0.035      0.042
Net Acidity - ANC                   mol H+/t          1           <1              <1          <1             <1        <1                 <1               <1        <1
Liming Rate                       kg CaCO3/t          1            2               2          4              4         2                   2               2         2
Liming Rate - ANC                 kg CaCO3/t          1           <1              <1          <1             <1        <1                 <1               <1        <1




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