Geotech Report - Acid Sulfate Soil Assessment

 

SECTION 1 - INTRODUCTION

1.1 Project

It is understood that it is proposed to develop the site by the construction of a residential development partly
suspended over a single level basement carpark at approximately RL 4.0m to RL 6.1m, involving approximately
2m maximum depth of bulk excavation. The location of the site and a potential layout for the development are
shown approximately on Drawing No. 1 attached.

1.2 Proposed Scope of Work

It was anticipated that the site ground conditions might comprise fill material, sands and silts overlying estuarine
clays. Based on the scope of the proposed development, the anticipated ground conditions and the
requirements of Sections 6 to 8 of the State Planning Policy 2/02 Guidelines - Planning & Managing
Development Involving ASS, it was proposed to investigate the site at the same time as (but separate from) an
Environmental Site Assessment (ESA) by:

© collecting samples at 0.25m intervals from six bores to a depth of 2.5m, or prior refusal;

* conducting acid sulfate soil (ASS) screening tests on all samples recovered from the bores;
© undertaking Chromium Suite laboratory testing on selected soil samples; and

© — preparation (if required) of an Acid Sulfate Soils Management Plan (ASSMP).

1.3 Commission

Based on the proposed nature of the development, the anticipated subsurface conditions and the scope of work,
a fee to undertake the assessment was presented in a proposal of 23 March 2007. Butler Partners was
subsequently commissioned by Scanlon Properties Pty Ltd to undertake the assessment as proposed.

 

Residential Development Page 1 of 10
215-219 David Low Way, Peregian Beach
Project No. 07160 18 June 2007