Reference Documents - MCU24 0141 & OPW24 0184 [As Published]

                Stormwater Calculations          Infinity CE           MUSICX Outputs                             D
                Pre-Lodgement Notes              NSC                   Pre-Lodgement Notes                        E


              2. Existing Site
              2.1. General
              The existing site contains an industrial building and carpark. The site falls from the North to the South-Eastern
              corner with levels ranging from approximately 11.8m to 10.1m AHD, with multiple less than 1.0m retaining
              walls controlling the slope of the site. The proposed development is currently within the Medium Impact
              Industry Zone, as per the Noosa Plan 2020.

              2.2. Drainage and Catchments
              Runoff within the subject site presents as sheet flow and internal drainage which is directed to the South-
              Eastern corner where it enters the existing stormwater network via a 1650mm pipe to a manhole on Action
              Street. There are no existing kerb adaptors on the frontage of Leo Alley Road or Action Street, the existing
              roofwater currently discharges to the internal drainage. An existing stormwater gully pit is located along the
              frontage within Leo Alley Road that captures a large portion of the upstream catchment with flows directed via
              a piped network through the subject site. Refer to Figure 2.




              Figure 2 - Existing Stormwater Network (NSC Maps)




240127 – Stormwater Management Plan             4 of 10