Reference Document - RAL25/0020 & OPW25/0194 (As Published)

                                                                                             Page 14 of 15




material should be placed or stockpiled in a way that it can easily be identified and retreated if
verification testing fails.

The quantity of lime used for treatment of ASS should be recorded to demonstrate that sufficient
quantities of lime are being used.


7. References

AS 2870. (2011). Residential Slabs and Footings. Standards Australia.

AS 3798. (2007). Guidelines on Earthworks for Commercial and Residential Developments.
Standards Australia.

AS 4678. (2002). Earth-retaining structures. Standards Australia.

Dear, S. E., Williams, K. M., McElnea, A. E., Ahern, C. R., Dobos, S. K., Moore, N. G., & O'Brien, L. E.
(2024). Queensland acid sulfate soil technical manual : soil management guidelines version 5.1.
Department of Resources and the Department of Environment and Science.

Fox, E. (2000). A Climate-Based Design Depth of Moisture Change Map of Queensland and The
Use of Such Maps to Classify Sites Under AS 2870-1996. Australian Geomechanics Volume 3,
Number 4, 53 to 60.


8. Limitations

Douglas Partners Pty Ltd (Douglas) has prepared this report for the proposed subdivision at 12-14
Gympie Street, Tewantin. This report is provided for the exclusive use MAJP Consulting and
Novato Group Pty Ltd ATF Tewantin Unit Trust for this project only and for the purposes as
described in the report. It should not be used by or relied upon for other projects or purposes on
the same or other site or by a third party. Any party so relying upon this report beyond its
exclusive use and purpose as stated above, and without the express written consent of Douglas,
does so entirely at its own risk and without recourse to Douglas for any loss or damage. In
preparing this report Douglas has necessarily relied upon information provided by the client
and/or their agents.

The results provided in the report are indicative of the subsurface conditions on the site only at
the specific sampling and/or testing locations, and then only to the depths investigated and at
the time the work was carried out. Subsurface conditions can change abruptly due to variable
geological processes and also as a result of human influences. Such changes may occur after
Douglas' field testing has been completed.

Douglas' advice is based upon the conditions encountered during this investigation. The
accuracy of the advice provided by Douglas in this report may be affected by undetected
variations in ground conditions across the site between and beyond the sampling and/or testing
locations. The advice may also be limited by budget constraints imposed by others or by site
accessibility.




Proposed Subdivision                                                                  237894.00.R.001.Rev0
12-14 Gympie Street, Tewantin                                                                October 2025