Additional Geotech Investigation 22.02.01 From Douglas Partners - 95120.01.R.001 · OPW21/0315

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It is generally preferable if an ‘ag lime’ with a purity of 95% or better is used (ie. NV >95, where NV is
the neutralising value, a term used to rate the neutralising power of different forms of materials relative
to pure, fine calcium carbonate which is designated NV = 100). The above lime dosing rates should be
adjusted by a factor of 100/NV.


6.     References

Ahern, C R; Ahern, M R; Powell, B. (1998). Guidelines for Sampling and Analysis of Lowland Acid
Sulfate Soils (ASS) in Queensland 1998. Resource Sciences Centre, Indooroopilly: Department of
Natural Resources.
Ahern, C. R., McElnea, A. E., & Sullivan, L. A. (2004). Acid Sulfate Soils Laboratory Methods
Guidelines. In Queensland Acid Sulfate Soils Manual 2004. Indooroopilly, Queensland, Australia:
Department of Natural Resources, Mines and Energy.
Dear, S., Ahern, C., O'Brien, L., Dobos, S., McElnea, A., Moore, N., & Watling, K. (2014). Queensland
Acid Sulfate Soil Technical Manual: Soil Management Guidelines. Brisbane: Department of Science:
Department of Science, Information, Technology, Innovation and the Arts, Queensland Government.



7.     Limitations

Douglas Partners Pty Ltd (DP) has prepared this report for the proposed residence at 33 Wyuna Drive,
Noosaville in accordance with DP’s proposal 95120.01.P.001 dated 30 November 2021. The work
was carried out under DP’s Conditions of Engagement. This report is provided for the exclusive use of
Braeden Constructions Pty Ltd 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 DP, does so entirely at its own risk and without
recourse to DP for any loss or damage. In preparing this report DP 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 DP’s field testing
has been completed.

DP’s advice is based upon the conditions encountered during this investigation. The accuracy of the
advice provided by DP 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.

The assessment of atypical safety hazards arising from this advice is restricted to the geotechnical
components set out in this report and based on known project conditions and stated design advice
and assumptions. While some recommendations for safe controls may be provided, detailed ‘safety in




Proposed Residence                                                                      95120.01.R.001.docx
33 Wyuna Drive, Noosaville                                                                    February 2022