Approved Documents · OPW11/0335

Matrix Projects (QLD)- Essence of Peregian, David Low Way Peregian Beach QLD 4573 Page 1

 

1.1

2.1

Introduction

I, Samuel Cowie Arborist/Horticulturist and Principal of Leaf & Limb
Horticultural Consultancy, have been engaged by Matrix. I have been
engaged for the purpose of investigating and reporting on options related to
the retention or removal, and protection of the existing trees located on the site
being developed as The Essence of Peregian, and advise on any relevant on-
going tree management that is required between trees and proposed
development works.

I inspected the site and trees on the 14" of April 2010 and the 7” of June 2010.

The site inspection and this report were conducted as per SCRC’s DA
conditions, specifically conditions No 17, 18, and 49. The report also
addressed issues with condition No 16. This forms the brief of the report.

Methodology

Identification of plant material was conducted using Barwick (2004), Rowell
(1983) and Haslam (2004). All references to pruning are taken from AS 4373-
2007, Pruning of Amenity Trees. Assessment of the trees was conducted
using Visual Tree Assessment (VTA) from Mattheck (1994 & 1999), with
additional references from Matheny & Clark (1994), and Harris (1999 &
2004). Any risk assessment was done using Quantified Tree Risk Assessment
(QTRA version 2007). Additional references to tree anatomy and structure are
taken from Shigo (1986 & 1991), including references to roots from Perry
(1982) and Urban (2008). Specifications on protection of trees and tree roots
during construction activities are taken from AS 4970-2009 and BS
5837:2005, including additional references from Urban (2008).

Mr Clint Sloan of Matrix provided all information in relation to current plans,
reports etc.

A Pentax Optio A30 digital camera set on the highest resolution possible (10
Mega pixels) was used for photographic documentation. A diameter tape was
used for all measurements, giving an average diameter based on the
circumference measurement. Diameter at Breast Height (DBH) was taken at
1400mm above ground level on the highest side of the trunk, or as per

AS4970-2009.

No soil or root excavation assessment was carried out during the time of
inspection. Root mapping where specified was done by obvious and visual
signs of disturbance to the soil, surrounding structures and obvious surface
roots.

 

Leaf and Limb Horticultural ConsultancyO
Prepared by Samuel Cowie 11% of June 2009