Preliminary Geotechnical Investigation · OPW21/0315

               www.biotrack.com.au
               781 Mt Glorious Rd Highvale 4520       Biotrack Certificate of Analysis
                                                      Signatory:                      Ph:+617 3289 7179 ABN 91 056 237 275


Test Code/Name              [1] FIELD SCREEN SUITE
Lab Reference (LR)          290920.570                Client Name         Douglas Partners Pty Ltd (Sunshine Coast)
SampleID                    All Samples               Client Contact      Brett Egen
                                                      Project Name        33 Wyuna Drv Noosaville
Report Date                 2/10/2020                 Job Number          95120
Sample Received Date        28/09/2020                Order Number
Sample Disposal Date        28/11/2020                Chain of Custody
Sample Packaging            Plastic Bag               Client Email        [email protected]
Temperature                 Ambient                   Client Address      28 Kessling Avenue Kunda Park Queensland 4556


Analytical Method: Test Methodology for pH_f and pH_fox as per QASSIT 2004 Laboratory Methods. Indications based on pH data only.
RATE: 0=No Reaction 1=Low 2=Moderate 3=High 4=Very High (steam evolved).
TEMP: Surface temperature rise (⁰C) oxidised sample at 5 minutes - cooling may occur for fast reaction.


 S# SampleID                       pH_f      pH_Fox   Change       Rate   Indication
  1 Bore1 0-250                     5.9        3.0     -2.9         0     low TAA & moderate TPA & sulphide possible
  2 Bore1 250-500                   5.6        3.4     -2.2         0     low TAA & moderate TPA & sulphide possible
  3 Bore1 500-750                   5.7        3.5     -2.2         0     low TAA & sulphide possible
  4 Bore1 750-1000                  6.0        3.6     -2.4         0     low TAA & sulphide possible
  5 Bore1 1000-1250                 6.2        3.9     -2.3         0     low TAA & sulphide possible
  6 Bore1 1250-1500                 6.0        3.8     -2.2         0     low TAA & sulphide possible
  7 Bore1 1500-1750                 6.5        4.6     -1.9         0     low TAA & low TPA
  8 Bore1 1750-2000                 6.3        4.3     -2.0         0     low TAA
  9 Bore1 2000-2250                 6.6        4.2     -2.4         0     no TAA & sulphide possible
 10 Bore1 2250-2500                 6.3        3.4     -2.9         0     low TAA & moderate TPA & sulphide possible
 11 Bore1 2500-2750                 5.3        2.7     -2.6         0     low TAA & moderate TPA & sulphide possible
 12 Bore1 2750-3000                 5.2        2.8     -2.4         2     low TAA & moderate TPA & sulphide possible
 13 Bore1 3000-3250                 5.4        2.2     -3.2         3     low TAA & high TPA & high sulphide/low buffer
 14 Bore1 3250-3500                 5.4        2.7     -2.7         3     low TAA & moderate TPA & sulphide possible
 15 Bore1 3500-3750                 7.7        2.9     -4.8         3     no TAA & moderate TPA & high sulphide/low buffer
 16 Bore1 3750-4000                 4.8        2.6     -2.2         0     low TAA & moderate TPA & sulphide possible




                                                                                                                                    Page 2