B - Code Compliance.pdf

Water Quality and Drainage Code

                                                       Guidelines (October 2014) and for Wetland Systems the
                                                       Wetland Technical Design Guideline (May 2017).
PO8                                                    AO8.1                                                       AO8.1 to AO8.2 – Not Applicable
Water quality treatment infrastructure to be           Detailed life cycle costing is provided for the entire      The proposed change of use from a Multiple Dwelling
dedicated as public assets are proven to be suitable   treatment train system including replacement costs of       unit to a Short Term Accommodation unit involves no
for its use and of a cost effective and efficient      asset parts.                                                physical works or alterations to the existing
standard.                                              AO8.2                                                       stormwater systems. There are no new treatment
                                                       Treatment systems dedicated as public assets are            systems proposed or necessary.
                                                       designed to minimise maintenance, renewal and
                                                       adaption costs and the requirement for specialised
                                                       equipment, material or maintenance techniques.
                                                       AO8.3
                                                       Vegetated stormwater management systems to be
                                                       dedicated as public assets are established and
                                                       maintained during the maintenance period to ensure
                                                       optimal vegetated growth and that the functional
                                                       elements of the system achieve the design function at the
                                                       end of the maintenance period.
PO9                                                    AO9.1                                                       AO9.1 to AO9.2 – Not Applicable
Treatment systems are designed to eliminate or         Free draining inlets and outlets are provided to ensure     The proposed change of use from a Multiple Dwelling
minimise health, safety and aesthetic hazards,         that waters do not pond for more than 24 hours.             unit to a Short Term Accommodation unit involves no
including risks associated with insect breeding,       AO9.2                                                       physical works or alterations to the existing
odour and public safety.                               Developments are designed to eliminate retaining walls      stormwater systems. There are no proposed retaining
                                                       in excess of 0.8m for any water quality treatment device.   structures.
Hydrology and Waterway Stability
PO10                                                AO10                                                           AO10 – Complies
Development prevents increased bed and bank The development is designed to:                                        The proposed change of use from a Multiple Dwelling
erosion and sedimentation in receiving waterways by a) limit the peak 1 year ARI event discharge within the        unit to a Short Term Accommodation unit does not
avoiding changes in low rate, peak flow run-off and    receiving waterway to the pre-development peak 1            involve any physical works or alterations to the
flow duration.                                         year discharge;                                             existing stormwater systems. Consequently, flows
                                                    b) maximise pervious areas by using pervious                   from current development conditions are maintained,
                                                       alternatives for otherwise impervious areas wherever        and there will be no changes to pervious area.
                                                       possible;
                                                    c) provide for capture and reuse of stormwater for non-
                                                       potable purposes for gardening, toilet flushing,
                                                       laundry and hot water supply uses;
                                                    d) incorporate appropriate detention features; and