Information response

   •   Proposes a prototype RIP on the development site, with further testing to be carried out to
       verify design infiltration rates prior to Operational Works application
   •   Updates the maintenance plan for the RIPs
   •   Removes the emergency relief pipe design element
   •   Includes a conventional drainage solution for external catchments.

Issue – Stormwater quality
Stormwater quality is not directly addressed in the SWMP - presumably on the basis that all flows
are infiltrated and hence ‘lost’. This does not recognise that groundwater is a receiving
environment and treatment is required prior to infiltration

Information Required
15. Provide an updated SWMP and preliminary engineering and layout plans which demonstrate
    that stormwater quality objectives are achieved prior to discharge to groundwater (i.e. prior to
    infiltration).

Response
Refer attached amended stormwater management plan which demonstrates that stormwater
quality objectives are achieved prior to discharge to groundwater. The amended design now sees
low flows directed to a landscaped swale with remediated soils, as required by the EMP, prior to
discharge to RIPs for infiltration.

Issue – Grant/Banksia Roundabout Upgrade
Page 18 of TTM’s Traffic Engineering Report (22135916) dated 07 October 2022 details design
modifications of the existing Grant/Banksia roundabout and “Driveway Entry” into the Resort. The
submitted documentation does not contain sufficient information for Council to assess the
proposed Grant/Banksia roundabout upgrade and “Driveway Entry”.

Information Required
22. Provide additional detail demonstrating the extent of the Grant/Banksia roundabout upgrade
    and proposed ‘Driveway Entry’ into the Resort. The detail must be prepared by a suitably
    qualified person (RPEQ – Registered Professional Engineer of Queensland) and include, but
    not be limited to:
    a. Demonstrate the extent of roadworks, including:
       i.   design alterations to the roadway, traffic islands and roundabout island;
      ii.   signage; and
     iii.   line-marking.
    b. Demonstrate the extent of entrance works, including:
       i.   demonstrate the design of the proposed “Driveway Entry” complies with Noosa
            Council’s standard drawing RS-051;
      ii.   provide a longitudinal section extending from the centreline of the road formation about
            the Grant/Banksia roundabout to the “Driveway/Setdown” area;
     iii.   demonstrate B99 vehicle will not scrape or bottom out while entering and exiting the
            proposed “Driveway Entry”;
     iv.    demonstrate additional stormwater runoff generated by the downward slope of the
            proposed “Driveway Entry” will create a worsening of drainage conditions within the
            road reserve and road network; and
      v.    demonstrate the required vegetation clearing.