Appendices 6 SMP, 7 Bushfire & 8 Noise impact - Email 3 of 4 - MCU16/0153 & REC16/0041

                                        STORMWATER MANAGEMENT PLAN
Client: Thomco (No 2087) Pty Ltd                               Location: 215 David Low Way, Peregian Beach



The following mitigation measures are proposed for the overall stormwater management at the site.
All three (3) bioretention basins discussed below will have filter media established to a depth of 0.5
m depth, with a 0.1 m and 0.2 m transition and drainage layer respectively. The extended detention
depth is 0.3 m. Refer to the Preliminary Stormwater Management Layout in Appendix B for details.
Catchment A: This catchment includes runoff from the ‘entry’ portion of the road, the roof area of the
hotel building and associated ground area. The catchment is treated by Bioretention Basin A, which
has a surface area of 29 m2 and a filter area of 20 m2.
Catchment B: This catchment includes runoff from the roof areas and associated ground areas of
the units in the central island (1 to 9) and five (5) of the terrace units (22 to 26). The catchment is
treated by Bioretention Basin B, which has a surface area of 15 m2 and a filter area of 10 m2.
Catchment C: This catchment includes runoff from the roof areas and associated ground areas of
the units on the northern edge of the site (10 to 16) and five (5) of the terrace units (17 to 21). The
catchment is treated by Bioretention Basin C, which has a surface area of 71 m2 and a filter area of
50 m2.
Refer Figure 2 for the MUSIC model layout.




Figure 2 - MUSIC Model Layout


Table 3 identifies the catchments applicable to each of the treatment devices.


                     Table 3 – Type and Size of Proposed Stormwater Treatment Device
                 Stormwater Treatment
                                                                       Detail
                 Device
                 Catchment A
                 Bioretention Basin A              Surface area of 29 m2 and a Filter area of 20 m2
                 Catchment B
                 Bioretention Basin B              Surface area of 15 m2 and a Filter area of 10 m2
                 Catchment C
                 Bioretention Basin C              Surface area of 71 m2 and a Filter area of 50 m2

Covey Associates Pty Ltd                                 6                                            Project No: 162042
Consulting Engineers                                                                                   100949Rpt Issue A