Acid Sulfate Management Plan · MCU16/0103

FPE Ref: 4956-161019-1.0



1.0 INTRODUCTION
Future-Plus Environmental (FPE) have been engaged by Dee Williams to undertake an Acid Sulfate Soils
investigation, groundwater investigation and preparation of an Acid Sulfate Soil Management Plan. The
investigation relates to the proposed new duplex development at 109 Gympie Terrace, Noosaville on Lot 5
on RP79817.

It is noted that the Acid Sulfate Soil Investigation is required in response to the request for further
information issued by Sunshine Coast Council dated 22 September 2016. The assessments and
recommendations contained in this report are based on site-specific geotechnical investigations carried out
by FPE and its project team to determine the potential for Acid Sulfate Soils (ASS) to occur onsite.

This report aims to determine the potential disturbance of Acid Sulfate Soils (ASS) as a result of the
proposed development within the subject site and propose the required management and mitigation
measures to minimise environmental risk during construction. Groundwater was encountered during the
investigation, however it is understood that no dewatering will be required for construction of the proposed
development. Thus a Dewatering Management Plan has not been provided.


1.1 BACKGROUND
The proposed development at the site involves the construction of a new double storey residential duplex
and associated facilities within an area of approximately 607m2. Based on information supplied, it is
estimated that >100 cubic meters of material will be disturbed during the proposed works, with an estimated
maximum depth of 1.0 meters below the existing surface level. It is understood that up to 1.765 meters of fill
is to be imported to the site equating to >500m3.

Developments in Queensland are subject to investigations of ASS in accordance with the State Planning
Policy – state interest guideline Water Quality (Department of Infrastructure, Local Government and
Planning, August 2016), when excavation of more than 100m3 of soil or sediment; or filling of land involving
500 cubic metres or more of material with an average depth of 0.5 metres or greater ‘at or below 5 metres
Australian Height Datum (AHD) where natural ground level is less than 20 metres AHD’ is proposed.

It is understood that the proposed development is likely to involve disturbance of >100m3 and involve filling
of >500m3 on land at or below RL5.0m AHD, therefore it is necessary that an investigation in accordance
with the State Planning Policy (August 2016) and the Queensland Sampling Guidelines undertaken.

A Site Locality Plan is included as Figure 1 and a proposed Site Layout Plan as Figure 2. A Borehole
Location Sampling Plan has been included as Figure 3.




October 2016                         Acid Sulfate Soil Investigation Report                                1
                                           New Duplex, Noosaville