REPS - Updated SWMP

1. INTRODUCTION
Engeny Australia Pty Ltd (Engeny) have been engaged by Devtex Nominees Pty Ltd to prepare an update to an approved Stormwater
Management Plan (SMP) to incorporate a townhouse development within a portion of the approved site (located on approved lots 1, 2, 3,
48, 49 and 50) at 73 Eumundi-Noosa Road, Noosaville (the Site). The original Reconfiguration of Lot (ROL) application (23686 DA) was
approved following an appeal in the Planning and Environment Court (Appeal No: 118 of 2006). From which an Operational Works application
was approved (Ref: OPW15/0133 dated 6 March 2017). As part of the OPW, a SMP was prepared by AquaIntel (02/09/2016 – revision B).


1.1         Project Purpose and Scope
The purpose of this SMP is to identify if the approved / constructed stormwater treatment measures can manage the new townhouse
configuration located within the approved development to achieve the requirements of the Noosa Shire Council (NSC) Planning Scheme
"Water Quality and Drainage Code”. The scope of the project has included the following:

•   Assessment of the Site’s stormwater quantity and stormwater quality management based on the approved and constructed bioretention
    and detention basins.
•   Confirmation that the existing detention basin can manage stormwater quantity runoff from the Site based on the updated layout.
•   Confirmation that the existing bioretention basin can still achieve the required Water Quality Objectives (WQO’s) for the Site based on
    the updated layout.
•   Collation of findings in a consolidated Stormwater Management Plan (SMP).


1.2         Site Characteristics
The Site has an area of 4.65 ha, with 0.5 ha being utilised for the proposed townhouse development. The pre-development site was largely
cleared with sporadic trees at rear. The Site grades from the west to east and connects into a culvert under Sands Avenue. Site elevations
range from 2.0 to 12.0 m AHD. There is a minor external catchment which extends to the west of the site up to Eumundi-Noosa Road. The
proposed townhouse layout and associated engineering drawings are provided in Appendix A and Appendix B, respectively. The location of
the Site is shown in below Figure 1.1, with the post-development layout shown in Figure 1.2.




                                                   SITE




Figure 1.1: Locality Plan



73 EUMUNDI - NOOSA ROAD, NOOSAVILLE I BBNE00529_0002_0001-REP-001-2                                                                      1