UPDATED 16.5.23 - 20210153 Maple St SWMP

 INTRODUCTION
RECOR has been engaged to prepare a Stormwater Management Report to accompany a
development application for a Residential Development consisting of 11 units for NDIS
accommodation.

This report investigates the stormwater management considerations for the existing and proposed
development site and assesses how the run-off from the site is to be managed in accordance with
Noosa Shire Council requirements for stormwater drainage.
The report and revised plan set attached include updates to address the concerns raised by
Council with respect to stormwater management in their Information Request dated 17/02/23 (Ref:
MCU23/0007 | RAL 23/0001), including:


Earth Bank Discharge

    3. Provide additional detail demonstrating where and how the runoff from the proposed
       Earth Bank will discharge. The additional detail must be prepared by a suitably qualified
       person (RPEQ – Registered Professional Engineer of Queensland).

Stormwater Discharge

    6. Provide an amended Stormwater Management Plan that demonstrates how stormwater
       collected on-site will be controlled, collected, and released without causing scour
       damage to neighbouring properties or creating trip hazards for pedestrians. The
       additional detail must be prepared by a suitably qualified person (RPEQ – Registered
       Professional Engineer of Queensland) and include, but not be limited to:

          a. provide comment on the water quality of the stormwater collected in proposed
             stormwater line ‘D’ that bypasses the bioretention swale;

          b. demonstrate the lid type of proposed stormwater structure 1/A and how the structure
              will be constructed to avoid trip hazards in the road reserve; and

          c. demonstrate that the existing services along the Myall Street frontage will not be
             impacted by proposed stormwater lines 2/A – 1/A and 1/A – EX/A (including vertical
             clearances).
Stormwater Quality

    7. Provide updated plans, SWMP and MUSIC model which only applies nutrient removal
       rates for proprietary products if they have been verified through SQIDEP

    8. Provide survey of the downstream existing pit in Myall St in order to demonstrate that the
        bioretention sub-soil drains can freely discharge.
Sustainable Building Design Code

    9. Provide updated plans and a SWMP which incorporates rainwater collection and reuse at
        the site, sufficient to supply external non-potable fixtures such as communal landscape
        irrigation and bin washdown




Project number 20210153
File RECOR Preliminary Stormwater Management Report - 20210153.docx, 2022-03-31                                 Page 5 of 27
Revision 1

P +61 7 5211 1003                A 75 Noosa Drive, Noosa Heads Qld 4567           E [email protected]   recorconsulting.com