Response to Stormwater Management Approval Conditions Letter

Calibre Consulting (Qld) Pty Ltd
Ground Floor, 545 Queen Street
Brisbane QLD 4000
PO Box 10349 Adelaide Street
Brisbane QLD 4000
T +61 7 3895 3444
ABN 38 109 428 506




Our Ref: 16-001014.01L.ms.cm.docx
Contact: Andrew McPhail




12 September 2016


Noosa Council
Level 1, 9 Pelican St Tewantin
Qld 4565


Attention: Cherie O’Sullivan


Dear Cherie,

Palm Lake Retirement Village (Operational Works) at 2 & 4 Lamonts Road and 18 & 20 Trading Post Road,
Cooroy.
Responses to Stormwater Management Approval Conditions for Operational Works Approval

Calibre Consulting (QLD) has prepared Operational Works documentation for stormwater management devices for the
Palm Lakes Retirement Village, Cooroy. This letter has been prepared to provide responses to stormwater & flooding
approval conditions outlined in Council’s Decision Notice (MCU15/0111 & REC15/0031 dated 22 July 2016) to support
Operational Works approvals for stormwater management works over the site.

This letter references the Stormwater Management Plan (SWMP) Report No. 16-001014-01A dated September 2016 and
the Stormwater Management Construction & Maintenance Plan (SMCMP) Report No. 16-001014-02A dated September
2016 that has been submitted in conjunction with this letter. Refer to this documentation for details.

With this submission we seek overall strategy approval for the balance stormwater management works (including the
Central Basin and Southern Basins). We also seek the approval for the Northern Bioretention Basin design however
inflow pipes are subject to future Civil Drainage Operational Works approval. Bio-Pod D2 and D3 are subject to future
Civil Drainage Operational Works approvals.

Earthworks (Stormwater Related Items)

59. Buildings floor levels and bulk earthworks finish levels must take into consideration any building Minimum
    Floor Level required by the planning scheme at the time of construction.

Response

      Building floor levels and final finish levels have been designed with adequate flood immunity to the maximum
      regional 1% AEP climate change flood level of 97.8m AHD. Design of internal stormwater drainage, overland flow
      paths and basins ensure that adequate flood immunity will be achieved during local flooding. Refer to Section 3.2.6
      of Stormwater Management Plan (SWMP) Report No. 16-001014-01A for details of local and regional flood
      management.

60. Earthworks carried out on site must not adversely affect the drainage conditions on any other properties or
    existing roads, and/or the patterns and severity of flooding in the area particularly on downstream
    properties. Filling works required on site shall not cause additional ponding of water on any adjoining lands
    or the blockage of, or interference with, any natural watercourses. Detailed site surveys indicating natural




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