Development Application Part 2 - Environmental & Stormwater Management Plans · OPW11/0335

                                                      EXECUTIVE SUMMARY

Simmonds and Bristow were commissioned by Contrast Construction Pty Ltd (for the Scanlon
Property Group Pty Ltd) to develop a Stormwater Management Plan (SWP) and Sediment
Erosion Control Plan (SECP) for the proposed Essence of Peregian development.

There are two previous versions of this plan, which represent the original plan (2009) and a
modified plan for the operational works application (2010). Subsequent to these plans it has
been decided that this development will be developed in stages. This revision represents Stage
1 of the development, which will include the construction of the commercial and hotel precincts
(with the residential units being built at a later date). As such the SECP and SWP presented in
this document are a reduced version of the existing plan to accommodate the reduced scope of
the Stage 1 development. In all other respects, the SECP and SWP presented in the earlier
versions (November 2009, December 2010) are the same.

The SWP for the Stage 1 development describes the management of stormwater from the
commercial area, the hotel, the upslope sources beyond the development area, and from
stockpiled soil stored on the Stage 2 area. This SWP provides computer model outputs
(MUSIC 4) that demonstrate compliance of the design stormwater quality with the required
guideline standards. These standards were agreed at the Joint Experts Conference, and are
consistent with loads reductions required by the Queensland Water Quality Guidelines (DERM
2009).

Plans that describe the stormwater treatment train (Appendix A) and outputs from computer
modelling used to support the stormwater design (Appendix B) are appended. These plans
show the proposed site layout, the location of bioretention trenches, wetlands, building areas,
plumbing layout, and the structure of bioretention trenches and wetlands within the
development area.

Procedures for maintaining stormwater treatment units (Appendix D) and implementing the
Sediment and Erosion Control Plan are attached as Appendix C and Appendix E. These
procedures describe how to control erosion, and minimise off-site exports of sediment and
nutrients from the proposed development area during the construction and post-construction
phases. A plan for monitoring water quality to demonstrate compliance with water quality
objectives has also been included.




02011 Simmonds & Bestow Ply Ltd                Pacific Plumbing - Scanlon Property Group Pty Ltd                      J-1109-155 - 8 September 2011
I ICLIEN T FILESIContrasl Constnuoonsl/ 109-155c - Essence of Pee an SCEP Stage I Updale\090utput DocumentsU I I09.155c SMP Scanlon Property
G`oup_SECP_ge_ta_110905 doc