PG-9236, 2022-10-31, Asr Ver 1

 Project No. PG-9236                                                                                                              Page | 6
 November, 2022
 Ref: PG-9236, 2022-10-31, ASR VER 1
 Looroo Property Trust – Acid Sulfate Soil Investigation - Proposed Residential Development, 128-132 Gympie Terrace, Noosaville




     b) A pHFOX value at least one unit below pHF may indicate a potential ASS. The
        great the difference between the two measurements, the more indicative the
        value is of a potential ASS. The lower the final pHFOX value the better the
        indication of a positive result.

     c) If the pHFOX is less than 3, and the other two conditions apply, then it strongly
        indicates a potential ASS. The more the pHFOX drops below 3, the more positive
        the presence of sulfides.

In broad summary, several of the ‘natural’ soil samples tested did show an indication
of ASS presence between 1.5m and 2.5m. The results of the screening tests were used
to assist in the selection of samples for more detailed, quantitative laboratory testing.

Chromium Suite Analysis

Chromium suite analysis was undertaken to quantify existing soil acidity and potential
future acid generation from possible ASS. A summary of results is given in Table 2.

TABLE 2                             CHROMIUM SUITE TESTING SUMMARY

                                                                  Nett Acidity                                      Liming Rate
 BH No.                 Depth (m)
                                                                   (mol H+/t)                                      (kg CaCO3/t)
                               1.0                                     <1                                                Nil
                               2.0                                     75                                                6
  BH01
                               3.0                                     <1                                                Nil
                               4.0                                     <1                                                Nil
                               1.0                                     <1                                                Nil
                               2.0                                     <1                                                Nil
  BH02
                               3.0                                     <1                                                Nil
                               4.0                                     <1                                                Nil

Summary

On the basis of the testing undertaken, samples between 1.5m and 2.5m below
ground level provided nett acidity values above the QASSIT defined action criteria.
Therefore, some of the soils disturbed on-site should be treated in accordance with
the attached Acid Sulfate Soil Management Plan.

The results of the laboratory testing are appended to this report.

6.0 LIMITATIONS

We have prepared this report for the Proposed Residential Development at 128-132
Gympie Terrace, Noosaville. The report is provided for the exclusive use of Looroo
Property Trust, for this project only and for the purposes outlined in the report. It should
not be used by, or relied upon, for other projects on the same or different sites or by a
third party. In preparing this report, we have relied upon information provided by the
client or their agents.