RESPONSE TO FURTHER ADVICE -Engineering Response · MCU25/0054

Issue: 8 – Acid Sulfate Soils

        The site is subject to the Acid Sulfate Soils Overlay, the Earthworks Plan notes the earthworks
        balance is 327.52 m³ in cut below 5m AHD.
        Information Required

        Provide an Acid Sulfate Soils Overlay Code assessment and management plan.

Response:

Please find attached the Geotechnical Investigation Report prepared by PTG Consulting, which includes Acid
Sulfate Soils (ASS) laboratory testing results. The investigation confirms the presence of potential acid sulfate
soils within the proposed excavation zone below 5.0 m AHD.

Due to access constraints associated with the existing building, testing was limited to hand auger methods. We
confirm that additional ASS investigation and verification sampling will be carried out following demolition, once
full site access is available.

A preliminary assessment against the (ASS) Overlay Code has been undertaken, and an appropriate
management approach will be refined based on further testing. We request that Noosa Council accept the
current submission, with a commitment to provide updated ASS management details prior to the
commencement of basement excavation works.


Issue: 9 – Reference Document

        The Planning Report (4.5 Works and Overlay Codes) notes a Geotechnical Report is included.
        This document has not been received.
        Information Required

        Provide the Geotechnical Report for Council review.

Response:

Please find attached the Geotechnical Investigation Report prepared by PTG Consulting.

Due to access limitations associated with the existing building, the investigation was undertaken using hand
auger techniques to obtain preliminary subsurface data. We note that further geotechnical testing and
assessment will be carried out following demolition, once full site access is available.

We request that Noosa Council accept the current report for preliminary review, with a commitment to provide
an updated and comprehensive Geotechnical Report prior to commencement of basement excavation works.



If you require any further information, please do not hesitate to contact our office.


Yours faithfully



TOM HARRINGTON – RPEQ 27698
For and on behalf of
SCG CONSULTING ENGINEERS


Enc      Geotechnical Investigation Report Prepared by PTG, Report No.PTG/02023-0001-Rev1 dated
         28.04.25
         Dewatering Management Plan Prepared by ADG, Report No.ADG1808.25 dated 7.05.25



SCG Consulting Engineers                              Page 2 of 2                                   SCG Ref:0461(L1)