RFI - Attachment G - Acid Sulfate Soils Investigation

 Table D1: Results of Field Screening and Chemical Laboratory Testing
Depth        Sample Description          Field Screening Test Results                           Chromium Suite Test Results (%S)
 (m)
                                       pHF   pHFOX   pH      Reaction     pHKCI   Titratable    Chromium       KCl       Retained   Net Acidity
                                                             (0,1,2,3,4)            Actual       Reducible                 Acidity
                                                                                    Acidity        Sulfur                  (NASS)
                                                                                     (TAA)         (SCR)
Bore 2
0.0-0.25        Silty sand filling     5.8    2.9     -2.9       3           -         -             -            -           -           -
0.25-0.5        Silty clay filling     5.5    3.0     -2.5       3          4.0      0.15          0.006        <0.02       <0.02       0.16
0.5-0.75        Silty clay filling     5.0    3.1     -1.9       2           -         -             -            -           -           -
0.75-1.0        Silty clay filling     5.0    3.1     -1.9       2           -         -             -            -           -           -
1.0-1.25        Silty clay filling     5.2    2.8     -2.4       2          4.4      0.09          0.010        <0.02       <0.02       0.12
1.25-1.5          Sandy clay           5.1    2.7     -2.4       2           -         -             -            -           -           -
1.5-1.75          Sandy clay           5.2    2.7     -2.5       2           -         -             -            -           -           -
1.75-2.0          Sandy clay           5.2    2.8     -2.4       2           -         -             -            -           -           -
2.0-2.25          Sandy clay           4.9    2.8     -2.1       2          4.1      0.13          0.012        0.03        <0.02       0.15
2.25-2.5          Sandy clay           4.9    2.8     -2.1       2           -         -             -            -           -           -
2.5-2.75          Sandy clay           5.1    2.8     -2.3       2           -         -             -            -           -           -
2.75-3.0          Sandy clay           5.2    2.9     -2.3       2           -         -             -            -           -           -
3.0-3.25          Sandy clay           5.0    3.0     -2.0       2           -         -             -            -           -           -
3.25-3.5          Sandy clay           4.9    3.1     -1.8       2          3.9      0.14          0.005        0.04        <0.02       0.15
3.5-3.75          Sandy clay           4.8    3.0     -1.8       2           -         -             -            -           -           -
3.75-4.0          Sandy clay           4.9    3.1     -1.8       2           -         -             -            -           -           -


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Table D1: Results of Field Screening and Chemical Laboratory Testing

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Depth Sample Description Field Screening Test Results Chromium Suite Test Results (%S)
(m) PHe | pHrox | ApH Reaction | pHxc | Titratable | Chromium KCI Retained Net Acidity
(0,1,2,3,4) Actual Reducible Acidity
Acidity Sulfur (NASS)
(TAA) (Scr)

Bore 2

0.0-0.25 Silty sand filling 5.8 2.9 -2.9 3 - -

0.25-0.5 Silty clay filling 5.5 3.0 -2.5 3 4.0 0.15 0.006 <0.02 <0.02 0.16
0.5-0.75 Silty clay filling 5.0 3.1 -1.9 2 - -

0.75-1.0 Silty clay filling 5.0 3.1 -1.9 2 - -

1.0-1.25 Silty clay filling 5.2 2.8 -2.4 2 44 0.09 0.010 <0.02 <0.02 0.12
1.25-1.5 Sandy clay 5.1 2.7 -2.4 2 - -

1.5-1.75 Sandy clay 5.2 2.7 -2.5 2 - -

1.75-2.0 Sandy clay 5.2 2.8 -2.4 2 - -

2.0-2.25 Sandy clay 4.9 2.8 -2.1 2 4] 0.13 0.012 0.03 <0.02 0.15
2.25-2.5 Sandy clay 4.9 2.8 -2.1 2 - -

2.5-2.75 Sandy clay 5.1 2.8 -2.3 2 - -

2.75-3.0 Sandy clay 5.2 2.9 -2.3 2 - -

3.0-3.25 Sandy clay 5.0 3.0 -2.0 2 - -

3.25-3.5 Sandy clay 4.9 3.1 -1.8 2 3.9 0.14 0.005 0.04 <0.02 0.15
3.5-3.75 Sandy clay 4.8 3.0 -1.8 2 - -

3.75-4.0 Sandy clay 4.9 3.1 -1.8 2 - -